baber/WOPTO huggingface dataset:
Patent JP-2003187537-A (JP)
Title: Hard disk drive
Inventor: SHIN SANG-CHUL
IPC: G11B21/21
Filed: 2002-11-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a high-performance hard disk drive.  <P>SOLUTION: The drive consists of a head signal pattern, a voltage pattern, a ground pattern and a current pattern and an FPC on which cavities are formed among the head signal pattern, the voltage pattern, the ground pattern and the current pattern. Thus, adverse effect caused by a noise for the head signal pattern is reduced, adverse effect to servo control is reduced by reproducing vibration energy in a specific low frequency band and control of an actuator is made easy and the performance of the entire hard disk drive is improved.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004156381-A (JP)
Title: Ground improvement method
Inventor: NAKAJIMA MASAO
IPC: E02D3/08
Filed: 2002-11-08
Abstract: <P>PROBLEM TO BE SOLVED: To easily improve a soft ground to a hard ground.  <P>SOLUTION: A preparatory hole having a specified depth is excavated on the ground face where ground improvement is executed and granular aggregate is put into the formed preparatory hole. While an implement having a hard chip is pressed and rotated to crush the charged aggregate, the crushed aggregate is pressed into the wall face of the preparatory hole to improve the ground.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004163462-A (JP)
Title: Liquid crystal display device and portable electronic appliance equipped with the same
Inventor: ICHIOKA HIDEKI
IPC: G02F1/1333
Filed: 2002-11-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide a liquid crystal display device in which battery capacity is increased without lowering display quality and mechanical strength and to reduce thickness and weight of an electronic appliance using the same.  <P>SOLUTION: In a casing 4 covering a liquid crystal display panel 1 together with a backlight 2 from the rear face side, a sheet battery 3 which is a thin plate shaped storage battery is disposed in a laminated state with the liquid crystal display panel 1 and the backlight 2.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004163472-A (JP)
Title: Method for designing photomask, photomask, and semiconductor device
Inventor: OZAWA KEN
IPC: G03F1/36
Filed: 2002-11-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for designing a photomask by which OPC can be easily carried out and the time required for designing can be decreased while the accuracy of the OPC is maintained, and to provide a photomask produced by the above method and a semiconductor device manufactured by using the photomask.  <P>SOLUTION: In a model base OPC, the result of measuring the line width of a test pattern is compared with the calculation result of the model to judge whether or not the fitting residual falls within the tolerance of error (-a, +a). When the residual exceeds the tolerance, the influences of the fitting residual on characteristics such as the connection relation of the pattern with upper and lower layers and the connection are analyzed to determine practically necessary tolerance (-b, +c), wherein each of a, b, c is a constant. If the measurement point shows the fitting difference exceeding the range of (-a, +a) but within the range of (-b, +c), the fitting accuracy is regarded sufficiently high, and inspection of the model is completed.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004165244-A (JP)
Title: Pickup device and method of semiconductor chip
Inventor: EMOTO YASUHIRO
IPC: H01L21/301
Filed: 2002-11-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide a pickup device of a semiconductor chip for preventing pickup errors caused by displacement by preventing the deformation of an adhesive sheet at pickup.  <P>SOLUTION: The pickup device of the semiconductor chip picks up the semiconductor chip stuck on the adhesive sheet with a pickup head. Air is jetted between the upper face of a contact member 23 and the lower face of the adhesive sheet from a through hole 23a by driving an air blowing means 29, in the state that a contact part 22 of a cylindrical member 21 provided on an adhesive sheet separation mechanism 6 separating the adhesive sheet from the semiconductor chip is contacted on the lower face of the adhesive sheet, and slide resistance is reduced when the contact part 22 and the adhesive sheet are slid. Consequently, the pickup errors caused by the displacement can be prevented by preventing the deformation of the adhesive sheet at the pickup.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004160475-A (JP)
Title: Friction stir welding apparatus using bobbin tool, and its welding method
Inventor: KODAMA KATSU
IPC: B23K20/12
Filed: 2002-11-11
Abstract: <P>PROBLEM TO BE SOLVED: To achieve flexibility and smoothness of friction stir welding, when a welding portion of a base material is welded by the friction stir welding using a bobbin tool.  <P>SOLUTION: A friction stir welding apparatus uses a bobbin tool having a back surface pushing member and a front surface pushing member, the distance between which is variable. The means for making the distance between both pushing members variable is composed of a plurality of pushing means. That is, the pushing means is composed of a first pushing means for raising the temperature up to at least a softening point and a second pushing means for carrying out the friction stir welding by generating the force higher than that of the first pushing means. The friction stir welding apparatus is characterized in that the first pushing means is a mechanical pushing means, and the second pushing means is a magnetostrictive means or an electromagnet attractive means.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004165341-A (JP)
Title: Heterojunction field effect transistor
Inventor: SUGIYAMA TAKAHIRO
IPC: H01L29/778
Filed: 2002-11-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a heterojunction field effect transistor capable of varying a gate voltage largely in enhancement operation.  <P>SOLUTION: The heterojunction field effect transistor has a semiconductor layer on a GaAs substrate. The semiconductor layer comprises a first semiconductor region (channel layer) formed at least by InGaAs; a second semiconductor region (spacer layer) that is formed by a material different from that of the first semiconductor region and is formed by a material, where potential energy in a conduction band is higher than the first semiconductor region; a third semiconductor region (carrier supply layer), where donor impurities are added; a fourth semiconductor region (first barrier layer) formed by AlGaAs; a fifth semiconductor region (second barrier layer) formed by GaAs; and a sixth semiconductor region formed by P-type GaInP.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2003337434-A (JP)
Title: Method for manufacturing belt type electrophotographic photoreceptor, belt type electrophotographic photoreceptor, and image forming apparatus
Inventor: YASHIKI YUICHI
IPC: G03G5/05
Filed: 2002-11-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a belt type electrophotographic photoreceptor with high production efficiency so as to easily form a photosensitive layer with uniform thickness, and to provide a belt type electrophotographic photoreceptor with excellent quality of output images, and an image forming apparatus equipped with the photoreceptor.  <P>SOLUTION: The method for manufacturing a belt type electrophotographic photoreceptor having a seamless belt type conductive base body and a photosensitive layer containing a pigment and disposed on the outer surface of the base body includes the following processes: a first process of applying a coating liquid 2 containing a conductive material and a polyimide precursor on the surface of a cylindrical or tubular core body 1 to form a liquid film 4 comprising the coating liquid 2; a second process of heating the film 4 to form a base body consisting of a film containing at least the conductive material and the polyimide; a third process of applying a coating liquid for the formation of the photosensitive layer containing the pigment on the surface of the base body to form the photosensitive layer while keeping the integrated state of the core body and the base body; and a fourth process of detaching the core body from the base body.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004159978-A (JP)
Title: Game machine
Inventor: SAWADA YUKIO
IPC: A63F7/02
Filed: 2002-11-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a game machine which is applied to the promotion of efficiency in recycling by reducing industrial waste, and also by which probability for exchange into an illegal board is reduced.  <P>SOLUTION: A main board 50 for performing lottery based on a random number, and a sub-board 60 for receiving a signal corresponding to a lottery result from the main board 50, and outputting video data based on the lottery result to a display are sealed by one board storage box 40. The whole board storage box 40 can be replaced with the new board box. Consequently, a game machine is used as the fully new game machine only by exchanging the board box 40.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004160407-A (JP)
Title: Head structure of humidifier
Inventor: KUSANO YOSHIO
IPC: H01M8/10
Filed: 2002-11-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a fuel-cell humidifier reducing the cost, having a space-saving structure, and preventing hollow fiber membranes from being complicated.  <P>SOLUTION: The humidifier 3 is equipped with a plurality of hollow fiber membrane modules 11 and 12 formed by inserting a bundle of water permeable hollow fiber membranes in cylindrical housings whose both ends are opened along with the axial direction, and heads 6 and 7 for holding both ends of the plurality of hollow fiber membrane modules 11 and 12 together in insertion holes. In the humidifier 3, pipes for passing through the liquid are formed in connection members for connecting respective heads 6 and 7.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004166758-A (JP)
Title: Game machine
Inventor: OSHIMI WATARU
IPC: A63F7/02
Filed: 2002-11-18
Abstract: <P>PROBLEM TO BE SOLVED: To precisely and surely detect a game ball in a game machine with a take-in device for detecting game balls by optical sensors.  <P>SOLUTION: The game machine has the take-in device for taking in game balls reserved in a reservoir part one by one and detecting the take-in of the game balls each time. A game is started on condition that the take-in of a game ball is detected by the take-in device. The take-in device has a game ball passage 167 for making game balls pass in line, and optical count sensors 210 and 202 for detecting game balls passing the game ball passage 167. A long light transmitting hole is formed on the passage wall surrounding the game ball passage 167 for letting the light from the count sensors 201 and 202 penetrate the wall.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004172707-A (JP)
Title: Method and system for measuring packet communication quality
Inventor: KANAZAWA TOSHIYUKI
IPC: H04L12/70
Filed: 2002-11-18
Abstract: <P>PROBLEM TO BE SOLVED: To realize a rate control quality measurement whereby a measurement value with high accuracy is obtained even when communication quality rapidly fluctuates.  <P>SOLUTION: When receiving communication quality of a test packet transmitted from one quality measurement apparatus 1 to the other quality measurement apparatus 2 and a count of packets delivered through a link 9 counted by a packet acquisition/counting unit 3, a packet communication quality calculation apparatus 5 obtains a continuous function of time denoting communication quality from a time sequence of the communication quality with respect to the test packet, calculates a rate of the communication quality within a prescribed period to satisfy a prescribed reference value on the basis of the continuous function, calculates a test object packet flow within the prescribed period as a function of time on the basis of the packet count within the prescribed period, and obtains a distribution function of the communication quality on the basis of the rate satisfying the prescribed reference value and the count object packet flow.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004166555-A (JP)
Title: Incubator
Inventor: ETO DAISUKE
IPC: G01N35/00
Filed: 2002-11-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide an incubator 1 which is readily operated by an operator.  <P>SOLUTION: In the incubator 1, a plurality of stackers 3 in which a plurality of microplate storage parts are arranged in a chamber and each microplate 31 is equipped with a bar code 34 for identifying the microplate. In the chamber, a microplate conveying unit for taking out and inserting a microplate to the arbitrary microplate storage part of an arbitrary stacker is arranged. The action of the conveying unit is controlled by a drive controller 18. A bar code reader 15 is connected to the drive controller 18. The drive controller 18 reads and decodes the bar code 34 of the microplate 31 by the bar code reader 15 and controls the conveying action of the microplate conveying unit based on the decoded result.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004170663-A (JP)
Title: Developing apparatus
Inventor: KASUGA AKIHIRO
IPC: G03G15/08
Filed: 2002-11-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a developing apparatus capable of preventing the occurrence of fogging and vertical white stripes by appropriately supplying fresh developer to a developing roll.  <P>SOLUTION: The developing apparatus 34 for a process cartridge 46 is provided with a hopper part 50 for storing the developer, a stirring unit 54 arranged in the hopper part 50, a developing part 52 and the developing roll 58 arranged in the developing part 52, the hopper part 50 communicates with the developing part 52 through an opening 58, and the developer stored in the hopper part 50 is supplied to the developing part 52 through the opening 60 with the rotation of the stirring unit 54. In the developing part 52, the developer sticks on the developing roll 58, and then, the developer is electrified by a developing blade 64 so as to form a thin layer on the roll. The leading end face of the developing blade 64 is cut by an angle of < 90°, the fresh developer is supplied in between the developing roll and the developing blade.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004172341-A (JP)
Title: Surface emitting laser
Inventor: INOUE TAKESHI
IPC: H01S5/183
Filed: 2002-11-20
Abstract: <P>PROBLEM TO BE SOLVED: To realize a surface emitting laser which is capable of setting a threshold current low even when it has such a structure where an air gap is interposed between a semiconductor layer and a DBR layer.  <P>SOLUTION: The surface emitting laser for emitting a laser beam in the direction perpendicular to a growth layer is equipped with a substrate provided with an outlet through which light is derived, a first distributed reflection layer formed on the substrate, an active layer which is sandwiched between a first and a second spacer layer in a vertical direction and formed on the first distributed reflection layer, a tunnel junction formed at the center of the first upper spacer layer, a third spacer layer which is formed around and on the tunnel junction, a contact layer formed on the third spacer layer, a phase controlling layer which is formed on the center of the contact layer, a first electrode formed on the peripheral part of the contact layer, a second electrode which is formed on a part of the rear of the substrate excluding the light outlet, and a second distributed reflection layer which faces the phase controlling layer through an air gap. In the surface emitting laser, the film thickness of the phase controlling layer is so adjusted as to position the antinode of a standing wave at a boundary surface between the phase controlling layer and the air gap.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004170318-A (JP)
Title: Method and apparatus for diagnosing anomaly of rotator
Inventor: MIYASAKA TAKANORI
IPC: G01M99/00
Filed: 2002-11-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide an anomaly diagnosing apparatus capable of preventing erroneous diagnosis and highly accurately diagnosing anomalies.  <P>SOLUTION: The anomaly diagnosing method for diagnosing anomalies of machine facilities including one or a plurality of sliding members comprises a step for detecting wave motion which occurs from the machine facilities; a step for computing the frequency spectrum of the wave motion; a first computation step for computing the root mean square of one degree component band of the frequency spectrum or its partial overall root mean square and the root mean square of the overall bands of the frequency spectrum or a normalized value, an overall root mean square; a second computation step for computing a quotient acquired by dividing the root mean square of one degree component band or the partial overall root mean square by the normalized value or a differential value; a step for comparing and collating the quotient or the differential value with a prescribed constant; and a step for diagnosing anomalies of the machine facilities on the basis of the result of the comparison and collation.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004173131-A (JP)
Title: Solid-state image pickup device
Inventor: TSUTSUI TOSHIJI
IPC: H01L27/148
Filed: 2002-11-22
Abstract: <P>PROBLEM TO BE SOLVED: To prevent variations in adjustment levels between respective channels from causing image quality deterioration of an imaging result even in the case of performing a multi-channel output.  <P>SOLUTION: A solid-state image pickup device is provided with a plurality of photoelectric converters 1 arrayed two-dimensionally in a matrix shape, vertical transfer registers 2 arranged for each column of the two-dimensional array, a plurality of horizontal transfer registers 3 for transferring electric charge to the two-dimensional array horizontally, and color filters respectively provided in each of the photoelectric converters 1. The color filters that correspond to at least a specific color component are arranged so as to be in a line on the same row in the two-dimensional array. One of the plurality of horizontal transfer registers 3 receives electric charge from each of the vertical transfer registers 2 arranged corresponding to the same column.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004168527-A (JP)
Title: Leg part structure
Inventor: TANJI HIROYUKI
IPC: B65H75/40
Filed: 2002-11-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a leg part structure capable of enlarging a leg part.  <P>SOLUTION: A leg fixing member 52 is provided on the base of a body case 11 of a hose reel, and the leg part 54 is supported between the leg fixing members 52. The base end part 62 of the leg part 54 is provided with a cylindrical part 61, and a top face part 63 is extended from the cylindrical part 61. Rotation is performed round the cylindrical part 61 to form the folded state 64 where the tips of both leg parts 54 are disposed under the body case 11 and the expanded state 65 where the above tips are extended sideways over the body case 11. Both leg parts 54 have dimensions to be overlapped in the folded state 64. The height of a flange 72 at the side edge of the top face part 63 is gradually decreased as it goes from the base end part 62 forward, and the thickness of the leg part 54 is gradually decreased as it goes forward. The sum S of thickness in the overlapping area of both leg parts 54 is set equal to or less than the thickness of the base end part 62.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004170857-A (JP)
Title: Zoom lens
Inventor: KIMURA KAZUO
IPC: G02B7/02
Filed: 2002-11-22
Abstract: <P>PROBLEM TO BE SOLVED: To prevent ghost light in a zoom lens consisting of four groups.  <P>SOLUTION: The zoom lens is provided with a 1st fixed lens group consisting of 1st to 3rd lenses 11 to 13 and having positive refractive power, a 2nd movable lens group consisting of 4th to 6th lenses 14 to 16 and having negative refractive power, a 3rd fixed lens group consisting of a 7th lens 18 and having positive refractive power, and a 4th movable lens group consisting of 8th to 10th lenses 19 to 21 and having positive refractive power in order from an object side. The 2nd lens group is equipped with a light shielding member 31 intercepting the ghost light made incident through the 1st lens group and reflected from the lower side wall surface 42 of a lens barrel.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004177597-A (JP)
Title: Photosensitive resin composition
Inventor: IGARASHI TSUTOMU
IPC: G03F7/033
Filed: 2002-11-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a photosensitive resin composition having high resolution and high hold time characteristics after lamination or exposure and useful as a DFR for the manufacture of an alkali developing type printed circuit board, a lead frame and a semiconductor package.  <P>SOLUTION: The photosensitive resin composition contains: (a) a binder resin by 20 to 90 mass% containing linear polymer having 100 to 600 carboxyl group content in terms of acid equivalents and 20,000 to 500,000 weight average molecular weight; (b) a photopolymerizable unsaturated compound by 3 to 70 mass%; (c) a photopolymerization initiator by 0.1 to 20 mass%; (d) aluminum N-nitrosophenylhydroxylamine by 0.001 to 3 mass%; and (e) a benzotriazol compound by 0.005 to 5 mass%.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004175960-A (JP)
Title: Heat release pressure sensitive adhesive sheet and electronic component
Inventor: SATO MASAAKI
IPC: C09J5/00
Filed: 2002-11-28
Abstract: <P>PROBLEM TO BE SOLVED: To prepare a heat release pressure sensitive adhesive sheet that is easily released by heating and controls or inhibits the corrosion of an adherend.  <P>SOLUTION: The heat release pressure sensitive adhesive sheet has a thermally expanding pressure sensitive adhesive layer containing thermally expanding microspheres formed at least on one side of the surfaces of a base sheet. The thermally expanding pressure sensitive adhesive layer contains an anticorrosion component. A non-thermally expanding adhesive layer is formed on the opposite side to the base sheet on which the thermally expanding pressure sensitive adhesive layer is formed. The non-thermally expanding adhesive layer contains the anticorrosion component. Preferably, there is a rubbery organic elastic layer between the thermally expanding pressure sensitive adhesive layer and the base sheet.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004175024-A (JP)
Title: Printing processor
Inventor: ITO TATSUO
IPC: B41J21/00
Filed: 2002-11-28
Abstract: <P>PROBLEM TO BE SOLVED: To select a template corresponding to the type of a plurality of printing media by a simple operation.  <P>SOLUTION: This printing processor identifies media, acquires the size for image development based on the type of the identified printing media, performs the image development by resizing the image data to be printed based on the instruction of template data described in a selected system template when a desired system template is selected from a ROM2 storing the system template, and performs printing on media 10 from a media pack 8 using developed image data as printing data.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004178776-A (JP)
Title: Magnetoresistance effect type magnetic head, and recording and reproducing device
Inventor: TETSUKAWA HIROKI
IPC: G11B5/187
Filed: 2002-11-29
Abstract: <P>PROBLEM TO BE SOLVED: To prevent corrosion from occurring on the medium sliding and touching surface of a magnetoresistance effect type magnetic head making a slidable contact with a magnetic recording medium.  <P>SOLUTION: A rust inhibitor film 50 including a carboxylic acid amine salt compound is formed on the medium sliding and touching surface 20a of a GMR head 20 for detecting a magnetic signal while making a slidable contact with a magnetic tape 3. Also, a top coat layer 64 and a back coat layer 65 formed from the same material as the rust inhibitor film 50 formed on the medium sliding and touching surface 20a of the GMR head 20 are formed on the surface of the magnetic tape 3, and the rust inhibitor film is copied on the medium sliding and touching surface 20a of the GMR head 20 which is brought into a slidable contact with the magnetic tape 30.  <P>COPYRIGHT: (C)2004,JPO