Abstract:
A method of applying a radio-frequency integrated circuit (IC) ID tag to a metal component within a device is described. In the method, a recessed portion is provided on a metal component such as a wheel. An IC tag storing information about the component (the wheel) or the device as a whole (for example, a motorcycle) is buried in this recessed portion, and is sealed therein by applying adhesive resin to completely cover the entire IC tag. A signal-absorbing material may be provided between the IC tag and the recess floor to prevent reflection from the metal surface of a transmitted radio wave. The tag mounting method allows a secure fit of a tag storing information about an article to a metal component, resulting in a tagged metal component.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS  
       [0001]     The present invention claims priority under 35 USC 119 based on Japanese patent application No. 2004-051569, filed on Feb. 26, 2004. The subject matter of the referenced priority document is incorporated by reference herein.  
       BACKGROUND OF THE INVENTION  
       [0002]     1. Field of the Invention  
         [0003]     The present invention relates to a tag mounting method of securing a tag to a metal component which is used to form an article, and to a metal component tagged using the method, in which the tag stores information about the article.  
         [0004]     2. Description of the Background Art  
         [0005]     Theft of an article can be detected using a theft detection device. In merchandise management, use of theft detection devices is well known. For example, according to Japanese Unexamined Patent Publication No. 5(1993)-221352, an ID tag is sealed in an auto body component such as a fuel lid. Car model information is obtained by reading the car model information stored in the ID tag with a non-contact sensor, or reader, at the time of vehicle production and after the vehicle is shipped.  
         [0006]     The above-described sensor, or reader, outputs a radio wave at a resonance frequency to the tag. A transponder provided inside the tag receives, and resonates with, the radio wave, and then notifies the sensor of detection of a theft. The radio wave transmitted and received herein is not obstructed or interfered with by the existence of plastics. Accordingly, no reading errors occur when the ID tag is buried in a resin molded item such as a fuel lid.  
         [0007]     On the other hand, a metal region in the article is inherently high in strength, which is an advantage for securing the tag thereon. However, if the tag is enclosed inside of a metal component, the metal component reflects the radio wave back toward the reader. Accordingly, there is a possibility that the radio wave emitted from the tag may be weakened, or that a reading error could occur on the sensor side.  
         [0008]     The present invention has been made in consideration of the foregoing circumstance, and a first object thereof is to provide an ID tag mounting method and a tagged metal component capable of achieving good transmission and reception while securely mounting an ID tag, which stores information about an article, to a high-strength metal component.  
         [0009]     Moreover, a second object of the present invention is to provide a method of mounting a tag to a metal component, and a tagged metal component capable of consistently and accurately transmitting information from an ID tag which stores the information about an article.  
       SUMMARY OF THE INVENTION  
       [0010]     In a first exemplary embodiment thereof, the present invention provides a method of mounting a tag (such as a radio frequency integrated circuit (IC) tag), which stores information about an article, to a metal component used to form the article. The method of mounting a tag is characterized in that a recessed portion is provided on the metal component. The recessed portion is formed in the surface of the component so as to open toward the outside. The tag is placed in the recessed portion, and the entire tag is substantially covered by resin so as to be sealed by, and buried within the resin within the recessed portion.  
         [0011]     By the configuration described above, the tag is mounted to the metal component so as to be located in the recessed portion and sealed in place by the resin. Meanwhile, a read/write signal sent to the tag is easily transmitted through the resin, and is received by the tag.  
         [0012]     Moreover, in a second embodiment thereof, the present invention is characterized in that a signal-absorbing material is buried in the recessed portion. An example of such a material includes, but is not limited to a glass-epoxy composite. Subsequently, the tag is buried on the signal-absorbing material and sealed by the resin in such a manner that the entire tag is substantially completely covered.  
         [0013]     By the configuration described above, the IC tag is mounted to the metal component so as to be placed on the signal-absorbing material inside the recessed portion and sealed by the resin from above. Meanwhile, the read/write signal sent to the IC tag is transmitted through the resin and is received by the IC tag, and is absorbed by the signal-absorbing material.  
         [0014]     Moreover, in another embodiment thereof, the present invention provides a tagged metal component having a buried tag storing information about an article constituted by the metal component, which is characterized in that the metal component includes a recessed portion, then the tag is buried in the recessed portion and sealed in place by resin, and the entire tag is substantially completely covered.  
         [0015]     Moreover, still another embodiment of the present invention provides a vehicle to which an IC tag is mounted, the IC tag storing given vehicle information. The vehicle is characterized in that the IC tag is placed on an adhesive attached onto a car body of the vehicle, and is sealed thereon by resin. In this manner, the entire IC tag, together with the adhesive, are substantially completely covered.  
         [0016]     By the configuration described above, the IC tag is substantially entirely covered with the resin, and together with the adhesive is attached onto the body of the vehicle. Meanwhile, a read/write signal (an electromagnetic wave) sent to the IC tag is easily transmitted through the resin member and is received by the IC tag.  
         [0017]     In a further embodiment thereof, the present invention is characterized in that the resin is UV setting resin, which is curable on exposure to ultraviolet light.  
         [0018]     By the configuration described above, when the IC tag is irradiated with ultraviolet rays while entirely covered with the resin, the UV setting resin hardens together with the IC tag and the adhesive. By this mechanism, the IC tag and the adhesive are thereby more firmly attached onto the vehicle body.  
         [0019]     Moreover, in another embodiment, the present invention is characterized in that the recessed portion is provided on a surface of a front wheel rim adjacent to a hub.  
         [0020]     By the configuration described above, it is possible to check air pressure of a front tire and to read data simultaneously.  
         [0021]     Moreover, in another embodiment, the present invention is characterized in that the recessed portion is provided on a side of a main vehicle body frame so as to be exposed to the outside of the vehicle.  
         [0022]     By the configuration described above, it is easy to read the data. For example, in the case of a motorcycle having a twin-tube frame or the like, it is easy to read the data because the frame is exposed to the outside.  
         [0023]     Moreover, in another embodiment, the present invention is characterized in that the recessed portion is provided on a tandem step bracket on a side of the vehicle.  
         [0024]     By the configuration described above, it is easy to read the data. For example, in the case of a motorcycle having a tandem step, it is easy to read the data because a tandem step is exposed to the side of the vehicle.  
         [0025]     Further, in another embodiment, the present invention is characterized in that the recessed portion is provided on a head cover of an engine mounted on the vehicle in an upright state.  
         [0026]     By the configuration described above, the IC tag is buried within a recess formed within a head cover, particularly in the upper head cover, of the engine. Accordingly, it is easy to read the data and, in case of a trouble, it is possible to perform maintenance of the IC tag simply by detaching the head cover.  
         [0027]     As described above, according to the present invention, the IC tag, together with the adhesive, attached onto the body of the vehicle and entirely covered with the resin. Meanwhile, the read/write signal (the electromagnetic wave) to the IC tag is transmitted through the resin member and is received. Therefore, durability and reliability of the IC tag is improved by means of covering with the resin while maintaining the IC tag in a readable and writable state.  
         [0028]     Moreover, according to the present invention, the IC tag receives the read/write signal transmitted from an IC tag reader, writes to a memory in the IC tag or reads from the given vehicle information written in the memory, and transmits the vehicle information thus read out on a radio wave. Therefore, it is possible to achieve reading and writing of vehicle information by using radio transmission. In particular, it is easy to mount the IC tag to a lower part of a body of a two-wheel vehicle or a four-wheel vehicle, or the like, and to facilitate reading and writing of the vehicle information.  
         [0029]     Moreover, according to the present invention, when the IC tag is irradiated with ultraviolet rays while entirely covered with the resin, the UV setting resin hardens. Furthermore, the IC tag, together with the adhesive attached onto the body of the vehicle, is more firmly attached onto the body. Therefore, it becomes easy to fit the IC tag, and it is possible to obtain the effect to improve durability and reliability of the IC tag by means of covering with the resin while maintaining the IC tag in the readable and writable state.  
         [0030]     Moreover, according to the present invention, the tag is mounted to the metal component while sealed inside the recessed portion by the resin. Additionally, the read/write signal to the tag is transmitted through the resin and is received by the tag. Therefore, the tag is reliably mounted to the metal. This is in contrast to the case of mounting the tag directly onto a surface of the metal component while maintaining the tag in the readable and writable state. Mounting the tag to the metal component while sealed inside the recessed portion by the resin improves durability and reliability of the IC tag.  
         [0031]     Moreover, according to the present invention, the IC tag is mounted to the metal component so as to be placed on the signal-absorbing material inside the recessed portion and sealed thereon by filling the recessed portion with resin from above. Meanwhile, the read/write signal to the IC tag is transmitted through the resin and is received by the IC tag, and is absorbed by the signal-absorbing material. Therefore, a reflected wave of the radio wave attributable to the metal component is suppressed, and allowing a reader to read the article information reliably.  
         [0032]     Selected examples of modes for carrying out the present invention are explained below by reference to embodiments of the present invention shown in the attached drawings. The above-mentioned object, other objects, characteristics and advantages of the present invention will become apparent form the detailed description of the embodiment of the invention presented below in conjunction with the attached drawings. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0033]      FIG. 1  is a left side view of a motorcycle showing an IC tag mounted to a metal surface in each of several possible locations, including the wheel rim, the head pipe, the vehicle body frame, and the engine head.  
         [0034]      FIG. 2  is a perspective view of an isolated motorcycle wheel rim showing the recessed portion formed in the wheel rim rim.  
         [0035]      FIG. 3  is a front cross-sectional view of the wheel rim of  FIG. 2  showing three of the possible locations for positioning the recessed portion.  
         [0036]      FIG. 4  is an enlarged partial sectional view of a recessed portion showing the IC tag positioned on high permeability magnetic material within the recessed portion, and completely covered and sealed by adhesive resin.  
         [0037]      FIG. 5  is a top view of a main frame of a motorcycle showing a recessed portion formed on an outward facing portion of the head pipe and on an outward facing portion of the vehicle frame.  
         [0038]      FIG. 6  is a top view of a head pipe showing a recess formed in a lateral outside surface of the head pipe.  
         [0039]      FIG. 7  is a sectional view of the head pipe of  FIG. 6  showing a recess formed in a lateral outside surface of the head pipe.  
         [0040]      FIG. 8  is an enlarged partial sectional view of a recessed portion of  FIG. 7  showing the IC tag positioned on high permeability magnetic material within the recessed portion, and completely covered and sealed by adhesive resin.  
         [0041]      FIG. 9  is a left side view of an engine showing a recessed portion formed in the engine head.  
         [0042]      FIG. 10  is a cross-sectional view of the engine of  FIG. 9  showing the recessed portion formed in the engine cover of the engine head.  
         [0043]      FIG. 11  is a cross-sectional view of the IC tag mounted on a UV setting adhesive, wherein the UV setting adhesive is mounted to a surface of a resin component, and both the IC tag and UV setting adhesive are completely covered by a resin seal; and  
         [0044]      FIG. 12  is a top plan view of the IC tag of  FIG. 11 . 
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0045]     The best modes currently contemplated for carrying out the present invention are described below.  
         [0046]     Two selected exemplary embodiments of this invention will be described below, based on the appended drawings. Note that description of front, back, left and right directions in the following explanations correspond to the same directions in a vehicle.  
         [0047]      FIG. 1  shows a motorcycle  1  having an IC tag mounted to a metal surface in each of several possible locations, including the wheel rim rim  40 , the head pipe  6 , the vehicle body frame  7 , and the engine head cover  81 . As shown in  FIG. 1 , a front fork  3 , rotatably supporting a front wheel  2  of the motorcycle  1 , is pivotally and steerably supported by a head pipe  6  provided on a front end portion of a vehicle body frame  5  through a steering stem  4 . A main frame  7  of the vehicle body frame  5  extends in an obliquely downward and backward direction from the head pipe  6 , and a rear end portion thereof bends downward to contact a pivot plate  8 . Moreover, a front end portion of a seat frame  9 , extending in an obliquely upward and backward direction, is connected to a rear portion of the main frame  7 .  
         [0048]     A base end portion of a swing arm  13  is pivotally mounted to the pivot plate  8  through a pivot shaft  11 , and a rear wheel  12  is rotatably supported on a tip end portion of this swing arm  13 . An upper end portion of a shock absorber  14  is mounted above the base end side of the swing arm  13 . A lower end portion of the shock absorber  14  is connected to the pivot plate  8  through a link mechanism  15  in a position lower than the pivot shaft  11 .  
         [0049]     A fuel tank  17  is mounted above the main frame  7 , and a liquid-cooled inline four-cylinder engine  18  is mounted below the main frame  7 , respectively. Moreover, a seat  19  for a driver and a pillion seat  20  for a pillion passenger are provided behind the fuel tank  17 . Steps  21  for the driver are mounted behind the pivot plate  8 , and steps  22  for the pillion passenger are mounted below the seat frame  9 .  
         [0050]     Handlebars  23  are mounted to an upper end portion of the front fork  3 . Moreover, a brake caliper  24  is mounted to a lower end portion of the front fork  3  through a caliper bracket  42 , and a brake disc  25  corresponding to the brake caliper  24  is mounted to a hub portion of the front wheel  2 , thereby constituting a front disc brake (a disc brake)  26  according to this invention. Here, a rear disc brake having a similar configuration to the front disc brake  26  is provided on the right side of the rear wheel  12 .  
         [0051]     A front portion of the vehicle body of the motorcycle  1  is covered with a front cowl  27 , and the vicinity of the seat frame  9  is covered with a rear cowl  28 . A rear sprocket  29  is mounted to the left side of the rear wheel  12 . A drive chain  31  is wound around both the rear sprocket  29  and a drive sprocket  30  provided on the rear left side of the engine  18 , whereby driving force of the engine  18  is transmitted to the rear wheel  12 .  
         [0052]     Throttle bodies  33  corresponding to respective cylinders are connected to rear portions of cylinders  32  of the engine  18 , and the respective throttle bodies  33  are connected to an air cleaner case  34  disposed between the main frame  7  and the fuel tank  17 . Exhaust pipes  35  corresponding to the respective cylinders are connected to front portions of the cylinders  32 , and the exhaust pipes  35  curve downward from near front wall portions of the cylinders  32 , then bend upward behind the pivot plate  8  after passing below a crankcase  36 , and are connected to a silencer  37  supported by the seat frame  9 . A radiator  38  for cooling the engine  18  is provided in front of the exhaust pipes  35 .  
         [0053]     As shown in  FIGS. 2-4  in a first application of the invention, a recessed portion  41 , for receiving an IC tag  70 , is formed on a wheel casting  40  of the motorcycle  1 . The wheel casting  40  is an aluminum cast component that forms part of each of the front wheel  2  and the rear wheel  12 . To be more precise, as shown in  FIG. 3 , the recessed portion  41  may be provided on a surface of the wheel rim  40 , either facing a hub side, or on a surface facing the wheel side of the front wheel rim. In this way, it is possible to simultaneously check the air pressure of a front tire and to read data from the IC tag  70 .  
         [0054]     As shown in  FIG. 4 , the IC tag  70  and the recessed portion  41  are respectively shaped and dimensioned so that the IC tag  70  fits inside, and is housed in the recessed portion  41 . For example, the recessed portion  41  may be processed into a shape such as a round hole or a square hole, depending on a manufacturer&#39;s preferences and also on the type of the metal selected (such as iron or aluminum). The IC tag  70  is also processed into suitable matching shape to correspond to the shape of the recessed portion  41 .  
         [0055]     The IC tag  70 , thus processed, is received in the recessed portion  41 , and is sealed therein by an adhesive resin  71  applied to the recessed portion  41  from above. As a result, the entire IC tag  70  is housed within the recessed portion  41 , and is substantially completely covered by adhesive resin  71 . In this way, the IC tag  70  may be placed on or adjacent a bottom surface of the recessed portion  41 . The adhesive resin  71  is filled above the IC tag  70  inside the recessed portion  41 , whereby the exposed portion of the IC tag  70  inside the recessed portion  41  is substantially completely covered. It is conceivable to use, for example, an UV setting adhesive or the like, for the adhesive resin  71 . The UV setting resin cures and hardens after being irradiated by ultraviolet rays, and the IC tag  70  is more firmly attached onto the wheel rim  40  after curing of the resin  71 . In this way, the IC tag  70  is mounted to the wheel rim  40  (the metal component) while sealed inside the recessed portion  41  by the resin. Therefore, the tag  70  is substantially protected from receiving a direct impact from the outside. Accordingly, the tag is reliably mounted to the metal, in contrast to the case of mounting the tag directly onto the surface of the metal component.  
         [0056]     Alternatively, instead of the adhesive resin  71 , it is possible to seal the entire IC tag  70  completely by use of urethane coating (protective resin). In this way, a surface of the adhesive resin  71  exposed above the recessed portion  41  is covered with the urethane coating, similar to the wheel rim  40 , whereby the recessed portion  41  becomes less recognizable in appearance. Therefore, in contrast to the case of mounting the tag directly onto the surface of the metal component, there is little or no danger of the tag being peeled off artificially. Hence, the durability and reliability of the tag is improved.  
         [0057]     When a read/write signal is transmitted from a reader to the IC tag  70  in this state, the read/write signal to the IC tag  70  transmits readily inwardly through the adhesive resin  71 , and reaches the IC tag  70 . The IC tag  70  receives this read/write signal, performs writing in an embedded memory or reading information about an article written in the memory, and then transmits the information thus read out on a radio wave. Additionally, the read/write signal from the tag  70  to the reader transmits outwardly through the adhesive resin  71 , and is received by the reader, whereby the information about the article stored in the IC tag  70  is read out.  
         [0058]     Therefore, in contrast to the case of mounting the tag directly onto the surface of the metal component, it is possible to achieve writing and reading of the information about the article using radio transmission while the tag is securely mounted in the recessed portion of the metal component.  
         [0059]     Some difficulty can arise where the read/write signal, transmitted from the reader to the IC tag  70 , passes through the IC tag  70  and reaches the rear side of the IC tag  70  as well. Accordingly, the radio wave (the read/write signal) may be reflected by the wheel rim  40 , which is the metal component, and this reflected wave may also be received by the reader. When the reader receives this reflected wave, together with a data signal transmitted by the IC tag  70 , a reading error may occur, due to this reflected wave.  
         [0060]     Therefore, to prevent such a reading error, a signal-absorbing material  72  may be provided in the recessed portion  41 , between the IC tag  70  and the metal component. Specifically, in the embodiment of  FIGS. 2-4 , the a signal-absorbing material  72  is placed on the bottom surface of the recessed portion  41 , before the IC tag  70  is placed therein. Then, the IC tag  70  is placed onto the signal-absorbing material  72  and is sealed thereon by using the adhesive resin  71  to substantially completely cover the entire IC tag  70 , as discussed above. As one non-limiting example of a suitable signal-absorbing material  72 , a glass-epoxy composite may be used.  
         [0061]     In this way, the IC tag  70  is placed on the signal-absorbing material  72  inside the recessed portion  41 , and is mounted to the metal component in the state sealed by the resin from above. Meanwhile, the read/write signal to the IC tag  70  transmits inwardly through the resin, and is received by the IC tag  70  and absorbed by the signal-absorbing material, to the extent that the signal passes through the tag  70 . Therefore, it is possible to effectively suppress the reflected radio wave, attributable to the metal component, and to reliably read the article information.  
         [0062]     Optionally, other metal components within the vehicle can be used as suitable alternative structures to the wheel rim  40 , on which IC tag  70  is mounted. Examples of suitable alternative metal components include the head pipe  6 , the main frame  7 , and the engine  32 .  
         [0063]     For example, in a second application of the inventive tag arrangement, as shown at the right side of  FIG. 5 , a recessed portion  60  may be provided on the left side of the main frame  7 , at a location exposed to the outside of the vehicle. Then, the signal-absorbing material  72  and the IC tag  70  are placed within recessed portion  60  and sealed therein by the adhesive resin  71 . The adhesive resin  71  may be applied from above to substantially completely cover the entire IC tag  70 . In this way, it is easy to read the data in the case of a twin-tube frame or the like, because the frame is exposed to the outside.  
         [0064]     Similarly, in a third application of the inventive tag arrangement, as shown in  FIGS. 6 and 7 , a recessed portion  50  may be provided on an exterior surface of the head pipe  6 , so as to be exposed to the outside environment. The signal-absorbing material  72  and the IC tag are placed within the recessed portion  50 , and sealed therein by the adhesive resin  71 . Adhesive resin  71  is applied from above to substantially completely cover the entire IC tag  70  ( FIG. 8 ).  
         [0065]     Moreover, in a fourth application of the inventive tag arrangement, as shown in  FIGS. 9 and 10 , a recessed portion  80  may be provided on an engine cover at the top of the engine  32 . The signal-absorbing material  72  and the IC tag  70  are placed within recessed portion  80  and sealed therein by the adhesive resin  71 . Adhesive resin  71  is applied from above to substantially completely cover the entire IC tag  70 . In  FIG. 10 , a cam chain case  84  is provided beside a cylinder head  82  of a cylinder  83 , and the recessed portion  80  is provided in a position above the cam holder portion  85  and on an upper surface of an engine cover  81 . The engine cover  81  is exposed to the outside.  
         [0066]     In this way, similar to the case of the wheel rim  40 , it is possible to suppress the reflected wave of the radio wave attributable to the metal construction of the head pipe  6 , the main frame  7  or the engine  32 , and to read the article information reliably. In addition, since the IC tag  70  is buried in a recess, particularly for the case wherein it is buried in the head cover above the engine, it is accordingly easy to read the data and, in case of a trouble, it is easy to gain access to the tag to perform maintenance simply by detaching the head cover.  
         [0067]     Further, in a fifth application of the inventive tag arrangement, a recessed portion  80  may be provided on a tandem step bracket on the left side of the vehicle. By the configuration described above, it becomes easy to read the data because a tandem step is exposed to the outside of the vehicle.  
         [0068]     Note that concrete descriptions of the article and the specific data configuration of the article information stored on the ID tag  70  were not specified in the above-described embodiment. Although a motorcycle is used to illustrate the invention, other transportation machines, including but not limited to a passenger automobile, a bus, a truck, a motor-assisted bicycle, a bicycle or a four-wheel buggy, an airplane, a ship, a boat, a yacht, a personal watercraft, or a marine bike would each respectively benefit from the invention.  
         [0069]     In addition, as regards the specific data configuration of the article information stored on the IC tag  70 , it is conceivable to write a piece or a combination of multiple pieces of identification information about the motorcycle  1 , the wheel rim  40 , or the like constituting the article (such as a vehicle ID or a wheel ID). In this way, by writing the identification information about the article to the IC tag  70 , it is possible to identify the individual article to which the IC tag  70  is attached.  
         [0070]     Moreover, a person can confirm the information outputted from the IC tag  70  by linking at least any of registration information of the article and history information of the article to the identification information of the article, and by writing the foregoing information in a database of an external computer system or in the memory in the IC tag  70 , and by outputting the registration information or the history information concerning the individual article based on the identification information. The registration information of the article may include, but is not limited to car registration information of the vehicle, information concerning an owner including a name, an address, an electronic mail address, or the like. The history information of the vehicle may include, but is not limited to, history information including production, registration, a change of ownership, refueling, maintenance records, a check, a repair, part change, export, import, deletion of registration, or the like.  
         [0071]     Therefore, in contrast to the case of simply mounting the IC tag  70  onto the surface of the metal component, it is possible to improve traceablity of the individual article while retaining the durability of the IC tag  70  for a long period as in this embodiment.  
         [0072]     Next, a second embodiment of this invention will be described based on drawings.  
         [0073]      FIG. 11  and  FIG. 12  show an IC tag  170  according to a second embodiment hereof, mounted to a resin surface. In  FIG. 11 , the UV setting resin adhesive base  172 , serving as the base of the IC tag  170 , is attached onto a resin component  190 . The resin component  190  forms part of a body of a vehicle. The IC tag  170  is placed on the UV setting resin adhesive base  172  on the opposite side to the surface adhered to the resin component  190 . Moreover, by means of lapping the UV setting resin adhesive (a seal)  171  over the IC tag  170  and the UV setting resin adhesive base  172 , the UV setting resin adhesive (the seal)  171  seals the IC tag as well as the UV setting resin adhesive base  172  so as to cover them completely.  
         [0074]     Here, in order to easily cover the entire IC tag, it is preferable to form the IC tag  170  in an appropriate size to be disposed inside the peripheral edges of the UV setting resin adhesive base  172  without protruding beyond the peripheral edges of the UV setting resin adhesive base  172  as shown in  FIG. 12 . Moreover, to enhance adhesion strength of the entire IC tag, the UV setting resin adhesive (the seal)  171  is hardened in a circular shape or an oval shape, and is then adhered to the resin component  190 .  
         [0075]     In this way, the IC tag  170  is set to the state entirely covered with the UV setting resin adhesive (the seal)  171  together with the UV setting resin adhesive (the base)  172  attached onto the resin component  190 . Meanwhile, corner portions of the IC tag  170  are covered, and the UV setting resin adhesive (the seal)  171  is set to the state not including corner portions similarly. Moreover, when ultraviolet rays are irradiated on the IC tag  170 , as well as the UV setting resin adhesive (the base)  172  attached onto the resin component  190  in the state entirely covered with the UV setting resin adhesive (the seal)  171 , the UV setting resin adhesive (the seal)  171  hardens and the IC tag  170  is set to the state more firmly adhered onto the resin component  190 .  
         [0076]     In this embodiment, the read/write signal (an electromagnetic wave) to the IC tag  170  transmits through the UV setting resin adhesive (the seal)  171  and is received by the IC tag  170 . Therefore, by covering the IC tag  170  with the UV setting resin adhesive (the seal)  171  while maintaining a readable and writable state of the IC tag  170 , it is possible to enhance adhesion strength and to prevent the IC tag  170  from being peeled off due to an applied force at corner portions thereof. Accordingly, the durability and reliability of the IC tag  170  is improved.  
         [0077]     Moreover, the IC tag  170  receives the read/write signal transmitted from the reader for the IC tag  170 , and performs writing in the memory inside the IC tag  170  or reading given vehicle information written in the memory, and transmits the vehicle information thus read out on a radio wave. Therefore, it is possible to achieve reading and writing of the vehicle information by use of radio transmission. In particular, it is easy to mount ID tag  170  to a lower part of a body of a two-wheel vehicle or a four-wheel vehicle, or the like, and to facilitate reading and writing of the vehicle information.  
         [0078]     While a working example of the present invention has been described above, the present invention is not limited to the working example described above, but various design alterations may be carried out without departing from the present invention as set forth in the claims.