baber/WOPTO huggingface dataset:
Patent JP-2003066393-A (JP)
Title: Integrated optical waveguide device
Inventor: PRUNERI VALERIO
IPC: G02F1/035
Filed: 2002-06-28
Abstract: PROBLEM TO BE SOLVED: To provide an integrated optical waveguide device that suppresses a DC drift phenomenon by a pyroelectric or piezoelectric effect. SOLUTION: An optical integrated circuit device is provided with a substrate of a ferroelectric material having first and second surfaces perpendicular to a direction of spontaneous polarization. At least a longitudinal waveguide section of at least one waveguide is formed in a first substrate region having a first orientation of spontaneous polarization of a first surface. At least one second substrate region is provided on the first surface adjacent to the first substrate region transversally to the longitudinal substrate section. An electric field component tangential to the first surface is developed in consequence to polarization or free charges generated by one or more of pyroelectric, piezoelectric and photovoltaic effects.  A material layer containing mobile charges is associated with the first surface, a displacement of the mobile charges is induced by the tangential electric field component, which substantially compensates the polarization or free charges in the substrate to reduce an electric field component perpendicular to the at least longitudinal substrate section.
Patent JP-2004035296-A (JP)
Title: Superfine lead oxide powder and its production method
Inventor: NITTA TSUTOMU
IPC: C01G21/06
Filed: 2002-07-01
Abstract: <P>PROBLEM TO BE SOLVED: To provide superfine lead oxide powder which has smaller primary particle diameters and secondary particle diameters, and to provide its production method.  <P>SOLUTION: A solvent is added to lead oxide powder (lead monoxide or trilead tetraoxide) containing secondary particles produced by flocculation sintering to form lead oxide powder slurry. The lead oxide powder slurry is subjected to wet pulverization. The lead oxide powder slurry after the wet pulverization step is dried to obtain flocculated lead oxide powder. The flocculated lead oxide powder is disintegrated, so that the superfine lead oxide powder is obtained.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004037637-A (JP)
Title: Cleaning device, process cartridge, and image forming apparatus
Inventor: MAEJIMA HIDEKI
IPC: G03G21/10
Filed: 2002-07-01
Abstract: <P>PROBLEM TO BE SOLVED: To prevent a leak of toner from an end of a cleaning vessel.  <P>SOLUTION: In a cleaning device comprising the cleaning vessel, a cleaning member, a C-end seal, and a squeeze sheet, a filling agent (ultraviolet curable bond) is injected to the outside of the contact surface between the cleaning vessel and the C-end seal.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2003080660-A (JP)
Title: Method for manufacturing honeycomb body
Inventor: KASUYA MASAYUKI
IPC: B32B38/00
Filed: 2002-07-02
Abstract: PROBLEM TO BE SOLVED: To provide a honeycomb body manufacturing method for manufacturing a honeycomb body 1 by winding a metal flat foil 3 and a metal corrugated foil 4 to laminate and solder them, making the equipment cost of a honeycomb body manufacturing apparatus inexpensive without generating coating failure or an increase in a coating range in the coating of an adhesive due to a roll and capable of devising the accidental fire counter measure of the honeycomb body. SOLUTION: The adhesive is applied to the parts to be soldered of the flat or corrugated foil corresponding to the bonding part 17 of the end part of the honeycomb body and/or the transverse surface bonding part 18 in the honeycomb body axially separated from the end part, and the flat foil and the corrugated foils are subsequently wound to form a honeycomb body shape. Further, the parts corresponding to the bonded parts 16 ranging over the total length in the axial direction of the outer peripheral part of the honeycomb body in the end surface of the honeycomb body are brought into contact with the surface of a binder liquid to allow the contact parts 5 of the foil and corrugated foils to suck the binder liquid and, thereafter, a solder powder is sprinkled over the honeycomb body to deposit the solder material on the adhesive and binder adhering parts.
Patent JP-2004034818-A (JP)
Title: Body structure of railway vehicle
Inventor: MUTO DAISUKE
IPC: B61D49/00
Filed: 2002-07-03
Abstract: <P>PROBLEM TO BE SOLVED: To provide such a body structure of a railway vehicle as can effectively reduce noise transmission from the exterior to interior of the vehicle.  <P>SOLUTION: It is possible to greatly reduce noise that passes through structural members 6 of the body from the exterior of a body 1 to its interior, by attaching a long, integral structural member 6 to the longitudinal side of the car body, which is formed through extrusion molding of mutually parallel plates 6a and 6b, as well as rib units 6c, which are in a truss formation between the two plates, in such a manner that the ratio, derived by dividing the characteristic frequency of one plate by that of the other panel, is 1.3 or more.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004035704-A (JP)
Title: Method for producing ethylene
Inventor: MORI TAKANOBU
IPC: C10G55/04
Filed: 2002-07-03
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for producing ethylene using a petroleum-based hydrocarbon material containing organochlorine compound(s) without affecting the quality of the final product and the equipment.  <P>SOLUTION: The method for producing ethylene at least as the final product 17 comprises the 1st step 1 of lowering the organochlorine level in the petroleum-based hydrocarbon material to an acceptable level or lower and feeding the resultant material together with steam to a cracking oven, the 2nd step 2 of carrying out a thermal cracking of the material to obtain a cracked mixed gas essentially comprising steam and ethylene, the 3rd step 3 of cooling the cracked mixed gas to condense the steam and separating the resultant oil and water, the 4th step 4 of reevaporating at least part of the water separated and recycling the steam thus generated to the cracking oven, the 5th step 5 of extracting at least part of the water separated out of the system, and the 6th step 6 of refining the cracked mixed gas.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004036230-A (JP)
Title: Glass block panel and expansion material therefor
Inventor: KUWABARA EIICHIRO
IPC: E04B1/684
Filed: 2002-07-03
Abstract: <P>PROBLEM TO BE SOLVED: To provide a glass block panel and an expansion material therefor, which can enhance waterproofness and into which a waterproof material for forming a waterproof layer can be easily infilled.  <P>SOLUTION: This glass block panel 60 is composed of a plurality of building glass blocks G and mortar joints 13 which are provided among the glass blocks G and G, and expansion joints 51 are longitudinally arranged among some of the glass blocks G and G. Characteristically, the expansion joint 51 comprises the expansion material 52 in which a wedge-shaped part 57b is provided throughout the length of an end surface, and the waterproof layer 54 which is brought into contact with the wedge-shaped part 57b.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2003104101-A (JP)
Title: Device for detachably mounting object, in particular child seat, to vehicle
Inventor: HABEDANK KLAUS-DIETER
IPC: B60N2/28
Filed: 2002-05-31
Abstract: PROBLEM TO BE SOLVED: To implement an extremely improved operation comfortability. SOLUTION: In this device for detachably mounting the object, in particular, the child seat to the vehicle, a holding means integrated with a seat and a holding means integrated to the object cooperatively acts, the holding means integrated with the seat is rigidly coupled to a rocking shaft extending to a space between parts at a seat frame side, and rotation of the rocking shaft enables rocking of these holding means to a waiting position from a using position and to the using position from the waiting position. The extremely improved comfortability is implemented according to this device. In this device, an operating element 9 is arranged to an outside of a vehicle seat, and torque is capable of being transmitted to the rocking shaft 7 through the operating element.
Patent JP-2003044363-A (JP)
Title: Memory device having data security in processor
Inventor: MOELLER PETER
IPC: G06F21/79
Filed: 2002-07-04
Abstract: PROBLEM TO BE SOLVED: To protect data stored in a processor including an encrypted or encryption decoding program. SOLUTION: This memory device 1 integrated in a single chip includes a first memory part 2 to an initialization or boot program by which write and read are performed through a first group of interfaces and a second memory part 3 to a user program by which write and read are performed through a second group of data interfaces, the memory part 3 includes addressable memory blocks 4 to 7 by every block, a first memory block 4 is provided with a protection control register PCR including pieces of programmable enable/disable information to the second group of data interfaces and inquiry of the protection control register PCR is performed before the inquiry or programming is allowed by an initialization program.
Patent JP-2004037343-A (JP)
Title: Liquid level sensor, and liquid level sensor unit
Inventor: HAYASHI SHINICHI
IPC: G01F23/26
Filed: 2002-07-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a liquid level sensor and a liquid level sensor unit comprising the same in which the detection area of an electrode opposed surface is enlarged that detects the liquid level in a liquid housing vessel, and no erroneous detection occurs for the liquid level in the liquid housing vessel that is caused by a residual liquid between electrodes.  <P>SOLUTION: A liquid level sensor 100 comprises a detection part 120 constituting a capacitor with first electrodes 121m and 121n and second electrodes 122m and 122n, and an auxiliary part 130 that is positioned below the detection part 120 when the liquid level sensor 100 is used. Lower ends 121e-121g of electrode opposed surfaces 121b-121d and 122b-122d of the first electrodes 121m and 121n and the second electrodes 122m and 122n contact with upper ends 134c-139c auxiliary opposed surfaces 134-139.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004047509-A (JP)
Title: Laser beam generator and laser beam generating method
Inventor: MASUDA HISASHI
IPC: G02F1/37
Filed: 2002-07-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide a laser beam generator capable of generating a laser beam of substantially continuous wave stably and efficiently, without complicating the structure or increasing the size.  <P>SOLUTION: A first laser oscillator 10 generates a pulsed light Pul of repetition frequency fp. A second laser oscillator 20 is pumped by the pulsed light Pul from the first laser oscillator 10. More specifically, the first laser oscillator 10 generates a pulsed light Pul of repetition frequency fp which is higher than the relaxed oscillation frequency fr of the second laser oscillator 20 which is pumped by the pulsed light Pul to deliver a laser beam CW of substantially continuous wave having a pulse duty ratio higher than that of the pulsed light.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004042079-A (JP)
Title: Suspension part and method for manufacturing it
Inventor: NAGAMI IKUO
IPC: B21D53/88
Filed: 2002-07-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide suspension parts the manufacturing cost of which is reduced and the manufacturing method of them.  <P>SOLUTION: After forming the base stocks for the suspension parts having common cross-sectional shape, the amount of bending for making the base stocks into a shape in accordance with the kinds of cars is selected and changed. An approximate plane is formed in the intermediate part 15 situated between end parts by bending the base stock having the end parts 11, 12 situated in the longitudinal direction respectively in the vicinity of the supporting points 13, 14 of the end parts.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004041072-A (JP)
Title: Method for producing fried food
Inventor: KUMAGAI KIHACHI
IPC: A23L5/10
Filed: 2002-07-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for producing a fried food, by which the fried food whose surface crispy or wet touch is adjusted to give a desired texture can be obtained in a non-limited food shape in a short frying time.  <P>SOLUTION: The method for producing the fried food is characterized by heating an un-cooked or semi-cooked food containing starch in at least the surface of the food raw material under an atmosphere having a relative humidity of 20 to 100% to enhance the core temperature of the food to ≥40°C, and then dipping and frying the heated food in an oil.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004045290-A (JP)
Title: Flow meter
Inventor: INOUE MASANORI
IPC: G01F1/68
Filed: 2002-07-12
Abstract: <P>PROBLEM TO BE SOLVED: To precisely and stably measure a flow rate of a fluid even under the condition where a temperature of the fluid fluctuates over a wide range.  <P>SOLUTION: A temperature variation condition in the fluid F flowing into a pipe 3 is monitored all the time based on a temperature in an inside of a case 2 provided with a sensor part 6, and based on a temperature of the pipe 3 through which the fluid F before cooled flows, and a temperature of an electronic cooler 7 for cooling the pipe 3 is controlled based on information provided by the monitoring.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004043265-A (JP)
Title: Method of surface treatment of diamond
Inventor: KLUGER ANKE
IPC: B01J3/03
Filed: 2002-07-15
Abstract: <P>PROBLEM TO BE SOLVED: To remove depositions such as an onion layer or a graphite layer stuck on the surface of nano-diamond without using a strong acid such as hot nitric acid or hypochlorous acid in a method of surface treatment of the diamond.  <P>SOLUTION: A gold-made capsule 11 in which water and the nano-diamond are encapsulated is housed in a pressure reaction vessel 12 in which water is filled. A sealing plug 14 is fitted to an opening part of the pressure reaction vessel 12 and tightened by a cap 13. An electric furnace 16 is energized in this state and the temperature and the pressure of water in the pressure reaction vessel is kept respectively at 800°C and 200 MPa for a prescribed time (8 hr) to change water in the pressure reaction vessel 12 and the gold-made capsule 11 into a super critical state to oxidize the nano-diamond in the gold-made capsule 11. After a prescribed time, the gold-made capsule 11 is opened to take out the surface treated nano-diamond.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004055601-A (JP)
Title: Method of aligning wafer with proximate mask and alignment mark
Inventor: MIYATAKE TSUTOMU
IPC: G03F1/42
Filed: 2002-07-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide a new method of aligning a wafer with a mask.  <P>SOLUTION: The method of aligning the wafer with the proximate mask comprises a first process (a) of arranging the wafer and the mask in close proximity to each other, irradiating them with light, receiving edge scattered light from mask marks and wafer marks, which are formed on the mask and the wafer and regularly arranged in rows and columns to produce scattered light, and obtaining a multi-spot image; a second process (b) of sampling the multi-spot image from the mask marks out of the multi-spot image and obtaining the reference position of the mask; a third process (c) of sampling the multi-spot image from the wafer marks out of the multi-spot image and obtaining the reference position of the wafer; and a fourth process (d) of detecting a displacement of the mask from the wafer on the basis of the reference positions of mask and the wafer.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2003131102-A (JP)
Title: Flexible lens mount
Inventor: NORSTAD TIMOTHY P
IPC: G02B7/02
Filed: 2002-07-17
Abstract: PROBLEM TO BE SOLVED: To provide a flexible lens mount capable of easily detaching/replacing a lens while maintaining the shape/position of the lens without causing any residue at the time of detaching/replacing. SOLUTION: The flexible lens mount 40 comprises a resilient member, a base member 42 and a fastener 62. The resilient member includes a 1st end, a 2nd end and a 1st surface adapted to abut the 2nd side of the flexible lens. The resilient member is adapted to be flexed to form a 1st arc of about degrees D of about radius R. The base member 42 includes a 2nd surface forming a 2nd arc which complements the 1st arc. The 2nd surface is adapted to abut the 1st side of the flexible lens 10 such that the flexible lens 10 is disposed intermediate the 1st and 2nd surfaces. The base member 42 further comprises a 1st retaining member disposed at one end to retain the 1st end of the resilient member and a 2nd retaining member disposed at the other end to retain the 2nd end of the resilient member.
Patent JP-2004053333-A (JP)
Title: Encoder device
Inventor: MAEDA HIDEO
IPC: G01D5/30
Filed: 2002-07-18
Abstract: <P>PROBLEM TO BE SOLVED: To reduce the thickness of an encoder device for detecting a change of relative position of two opposed objects with light.  <P>SOLUTION: The encoder device comprises a reflecting part (10) provided on one object and has a column of reflecting surfaces (11) and an illumination detecting part (20) which is provided on the other object, illuminates the reflecting part and detects return light. The illumination detecting part comprises a light emitting element (21), a light receiving element (22), a plate-like light guide element (30), and a shading part (40) having a column of shading faces (41). The light guide element is placed opposite to the reflecting part and light provided by the light emitting element through an end surface is allowed to travel inside through the entire reflection with two surfaces. The direction of the light is changed by a column of grooves (35) provided on a surface (32) to output the light from a surface (31) at the side of the reflecting part. The light receiving element is on the opposite side of the reflecting part from the light guide element and detects light transmitted through the light guide element from the reflecting part.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004050034-A (JP)
Title: Oil and water separation and recovery apparatus
Inventor: SHIMIZU YUKIHIKO
IPC: B01D17/09
Filed: 2002-07-19
Abstract: <P>PROBLEM TO BE SOLVED: To dispense with a pump for lifting water or the like through the separation of oil from water and floating by a difference in their specific gravities and heating.  <P>SOLUTION: A treatment water vessel is partitioned into a side for introducing a liquid mixture of oil and water and a side for exhausting the oil. A means for introducing the liquid mixture of the oil and water, a heating means, a means for introducing tap water, a guide means for guiding an oil component upward, and a means for exhausting the water are arranged on the side for introducing the liquid mixture of the oil and water, and an oil storage part and a means for exhausting the oil are arranged on the side for exhausting the oil.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004053925-A (JP)
Title: Display unit for portable telephone, and portable telephone
Inventor: HAMAGUCHI HIROMITSU
IPC: H04M1/21
Filed: 2002-07-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a display unit for a portable telephone capable of utilizing an optional selection region in a display screen as a mirror.  <P>SOLUTION: The liquid crystal display unit is provided with a translucent mirror layer 26 disposed between a polarizing plate 21 and a backlight 28, reflecting light made incident from the surface side of a light trans mission panel when the backlight is turned off and transmitting light of the backlight to enable image display when the backlight is lit and an aperture layer 27 disposed on the entire surface of a display region between the translucent mirror layer 26 and the backlight and capable of transmitting or interrupting light between the translucent mirror layer and the backlight in an optional selection region on the display screen. When the backlight is turned off, the entire region of the display screen is a mirror and when the backlight is lit and an image is displayed, the selection region is a mirror by the light interruption of the aperture layer and image display is performed in the other region and the image is displayed in the entire region of the display screen by light transmission of the aperture layer.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004051024-A (JP)
Title: Steering shaft
Inventor: IMAI MASAYUKI
IPC: B62D1/18
Filed: 2002-07-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a steering shaft composed of an outer shaft in which an inner spline part is formed and an inner shaft in which an outer spline part is formed and capable of expanding and shrinking in the axial direction, shortening a formation scope of the inner spline part, and maintaining the engagement of the outer spline part and the outer shaft even in a state that it is shrunk most when conveying and assembling it or a vehicle collides.  <P>SOLUTION: This steering shaft is composed of the inner shaft B in which the outer spline part 6 is formed at the tip of a shaft and the outer shaft A in which an inner tooth 3b is formed in the inner spline part 2 formed over substantially an intermediate section from one end side in the axial direction and a swelling part 3a protruding toward an inner peripheral side from an outer peripheral side. The inner spline part 2 and an engaging inner tooth 3 are provided by separating them from each other.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004052952-A (JP)
Title: Spiral spring device
Inventor: FUJISAKI NOBUHIKO
IPC: F16H33/02
Filed: 2002-07-23
Abstract: <P>PROBLEM TO BE SOLVED: To solve such problems that because the accumulated energizing energy of a conventional spiral spring must be calculated from an output torque value, the accumulated energizing energy cannot be measured correctly under the influence of the friction and the shape of the spring, resulting in the prevention of correct energy setting, which leads to low reliability of the spring.  <P>SOLUTION: The accumulated energizing energy of a spiral spring is measured from the electric current of a motor for making the spiral spring accumulate energizing energy, conducting time, and a signal from an angle measuring device for measuring the energy accumulation angle of the spiral spring.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004049804-A (JP)
Title: Stent and stent graft
Inventor: TAKAHASHI HIROSHI
IPC: A61F2/90
Filed: 2002-07-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a stent and a stent graft that can be diametrally easily contracted, when mounted on the inside periphery of a catheter, can expand a tubular organ by a sufficient expansive force when forced out from the catheter and can be adapted to a curve of the tubular organ.  <P>SOLUTION: The stent 20 is formed into a cylinder by weaving metal wires 21. Double-woven portions 23 annularly woven by doubling the metal wire 21 are axially provided at least at one position. By covering the inside periphery and/or the outside periphery of the stent 20 with a cylindrical cover 30, a graft 30 with a stent is formed.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2003175499-A (JP)
Title: Micro-fluidic device
Inventor: OUELLET LUC
IPC: B81C1/00
Filed: 2002-07-24
Abstract: <P>PROBLEM TO BE SOLVED: To form various shapes of micro grooves and filters in a fabricating method for an active micro-fluidic device.  <P>SOLUTION: A mechanically stable support layer is formed over a layer of a etchable material, in a method of fabricating a microstructure for micro- fluidics applications. An anisotropic etching is carried out via a mask to form a pattern of holes extending through the support layer into the etchable material. An isotropic etch is conducted through the each hole to form a corresponding cavity in the etchable material under the each hole and expanding under the support layer. An additional layer of depositable material is formed over the support layer until portion of the depositable layer overhunging the each hole meet and thereby close the cavity formed under the each hole.  <P>COPYRIGHT: (C)2003,JPO