baber/WOPTO huggingface dataset:
Patent JP-2004274164-A (JP)
Title: Optical module, its manufacturing method and electronic apparatus
Inventor: KONDO YOICHIRO
IPC: H04N5/225
Filed: 2003-03-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide an optical module which can be made small in size and high in intedration, and to provide its manufacturing method and an electronic apparatus.  <P>SOLUTION: The optical module includes a substrate 30 with an internal space 32 formed therein, an optical chip 10 with an optical portion 12, a lens 44 provided in the internal space 32 while leaving a space from the optical portion 12, and an integrated circuit chip 70 that is electrically connected to the optical chip 10 and provided on an outer surface of a wall 34 surrounding the internal space 32 in the substrate 30.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003285129-A (JP)
Title: Press working equipment and press working method
Inventor: ONO KIYOSHI
IPC: B21D43/02
Filed: 2003-01-28
Abstract: <P>PROBLEM TO BE SOLVED: To reduce cost and shorten the processing time by reducing the number of parts.  <P>SOLUTION: When either one of driving rollers is set in a groove part of an index cam, a rotating speed of the index cam becomes maximum and, at this time, a punch cam is in a lying condition, bringing a lower punch plate 34 close to an upper punch bottom plate 36, and an upper die part 31 and a lower die part 32 are separated each other. In this condition, a metal plate is fed between the upper die part 31 and the lower die part 32. The rotating speed of the index cam becomes almost zero under the condition that both driving rollers contact with both sides of the island of the index cam, and at this time, the punch cam is in a standing condition, resists a spring force of a compression coil spring, presses the lower punch plate 34 and the upper punch bottom plate 36 upward and downward respectively through bearings, and separates the lower punching plate 34 from the upper punching bottom plate 36. At this point, the upper die part 31 and the lower die part 32 press each other and punch piercing holes on the metal plate under the condition that the metal plate almost stands still and is put between them.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004269604-A (JP)
Title: Expandable resin composition and propylene resin foam
Inventor: TAKAHATA HIROAKI
IPC: C08J9/12
Filed: 2003-03-06
Abstract: <P>PROBLEM TO BE SOLVED: To provide an expandable resin composition used for manufacturing a propylene resin foam containing fine cells.  <P>SOLUTION: The expandable resin composition is obtained by kneading 100 pts.wt. of an olefin copolymer (a) with 10-800 pts.wt. of a thermally decomposable foaming agent (b), 0.1-20 pts.wt. of a neutralizing agent (c) and 0.1-20 pts.wt. of a moisture absorbent (d), where the olefin copolymer (a) comprises an olefin copolymer (a-1) comprising 50-99 wt.% of a monomer unit derived from 1-butene and 50-1 wt.% of a monomer unit derived from ethylene.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004274854-A (JP)
Title: Rotor for rotating electric machine
Inventor: KOBAYASHI SHUICHI
IPC: H02K1/27
Filed: 2003-03-07
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a rotor for a rotating electric machine, which can lessen the inertia by shortening the actual length of a rotating shaft.  <P>SOLUTION: A rotor yoke 8 is provided, projecting in the radial direction, around the rotating shaft 7. The rotor yoke 8 is shaped like a hollow cylinder. A permanent magnet 9 is supported by the periphery of the hollow cylindrical rotor yoke 8. A section 7b of the rotating shaft projected outward from one end in the axial direction of the rotor yoke 8 is shaped like a hollow cylinder which continues from the end plate 8a of the yoke which closes one end of the rotor yoke 8 continuously. The other end in the axial direction of the rotor yoke 8 is opened. The section of the rotating shaft, projected toward the outside from the other end in the axial direction of the rotor yoke 8 is made of a solid shaft 7c which is provided with a yoke end plate 8b at its end. The yoke end plate 8b at the end of the solid shaft 7c blocks the opening of the other end in the axial direction of the rotor yoke 8, thereby fixing it.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004145250-A (JP)
Title: Bidirectional optical communication module
Inventor: FUJITA HIDEAKI
IPC: G02B6/42
Filed: 2003-03-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide an inexpensive and compact optical communication module having high SN ratio capable of full duplex communication via a single optical fiber.  <P>SOLUTION: Received light 9 made to exit from an optical fiber 2 is reflected by a reflecting mirror 12 and focused to be coupled to a receiving element 5, and transmitted light 8 made to exit from a light emitting element 4 is focused by a transmission lens 6 and passes through an optical member 10, to be coupled to the optical fiber 2. Among the light made to exit from the light emitting element 4, internal disturbance light 14 having passed outside the transmission lens 6 is absorbed by a light attenuating film 13 formed on the surface opposite to that irradiated with the receiving light 9 of the reflecting mirror 12, therefore, the internal disturbance light 14 is not reflected by the surface opposite to the surface irradiated with the receiving light 9 of the reflecting mirror 12, and as a result, not only a quantity of the internal disturbance light 14 reaching the receiving element, but interference is also reduced.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004232622-A (JP)
Title: Cooling type radial turbine rotor
Inventor: IKEDA TAKASHI
IPC: F01D5/18
Filed: 2003-02-01
Abstract: <P>PROBLEM TO BE SOLVED: To achieve improvement in thermal cycle efficiency by raising turbine inlet temperatures of a radial turbine with a small capacity having rotors made of super-alloy up to 1000°C or higher.  <P>SOLUTION: In a radial turbine rotor in which a high-temperature working fluid flows inwardly in radial direction from the periphery, and flows outwardly in axial direction, a cavity is provided in the shaft center section of a rotor disk, and a plurality of cooling holes that pass from the cavity through the solid section of each blade and exits the leading edge and tip of blades periphery. .  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004007461-A (JP)
Title: Data processor and its method
Inventor: YAMAGUCHI TAKAO
IPC: H04N19/85
Filed: 2003-03-10
Abstract: <P>PROBLEM TO BE SOLVED: To solve the problem that transmission format information can not be dynamically changed in a conventional method.  <P>SOLUTION: An image compositing device is constituted of a reception management part 11 for receiving information including data and its transmission format information from a storage device or a communication line, a separation part 12 for analyzing and separating the received information, a transmission part 13 for transmitting information to the storage device and the communication line, an image extension part 14 for extending an image, an image extension management part 15, an image compositing part 16 for managing the processing state of the image extension part 14 before extending at least one image or more and compositing images on the basis of the extended information, an output part 17 for outputting the composite result, and a terminal control part 18 for controlling and managing these means. The image compositing device can simultaneously composite a plurality of images and correspond to the dynamic change of the transmission format information.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004270860-A (JP)
Title: Rolling bearing for vacuum pump, and vacuum pump
Inventor: YAMADA MANABU
IPC: F16C33/66
Filed: 2003-03-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide technique to reduce striking sound of rolling elements to inner and outer rings (race surfaces), and achieve long service life of a rolling bearing without being affected by temperature rise.  <P>SOLUTION: This rolling bearing 12 is used for a vacuum pump 2 provided with a connecting rod 10 for converting eccentric rotation M of an eccentric part 8 provided in a rotary shaft 6 into linear motion S. The rolling bearing is composed of an inner ring 14 provided between the eccentric part of the rotary shaft and the connecting rod, and installed on the eccentric part, an outer ring 16 installed on the connecting rod, a plurality of rolling elements 18 incorporated between the inner ring and the outer ring, and a retainer 20 retaining the rolling elements to be capable of rolling. The retainer is formed of resin material.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004269790-A (JP)
Title: Method for producing polyimide resin powder
Inventor: TSUJI HIROYUKI
IPC: C08G73/10
Filed: 2003-03-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for stably producing polyimide resin powder having an imidation ratio sufficiently high for practical purpose.  <P>SOLUTION: A solution containing a polyamic acid is imidated to obtain a solution containing a solubilized polyimide resin and the powder of the polyimide resin is extracted from the solution to obtain the polyimide resin powder. The process is carried out by chemically performing the imidation and using a solvent having a water content of ≤500 ppm as the solvent for extracting the powder.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004281447-A (JP)
Title: Radio wave absorbing sheet
Inventor: TASHIRO AKITSUGU
IPC: H05K9/00
Filed: 2003-03-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a light-weight wave absorbing sheet having little change in the wave absorbing characteristics due to the change in the incident angle of radio waves, and has a radio wave absorption characteristic in the frequency region of 5.8 GHz.  <P>SOLUTION: This wave absorbing sheet is formed by laminating sheets obtained respectively by using a plurality of mixtures containing expanded graphite powder having different mean particle diameters and an elastic binder.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2003346908-A (JP)
Title: Lithium secondary battery
Inventor: TAKATSUKA YUICHI
IPC: H01M10/052
Filed: 2003-03-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a lithium secondary battery capable of maintaining safety even when overcharged.   <P>SOLUTION: In a lithium ion battery, positive and negative electrodes are wound via a separator and immersed in an electrolyte solution in a battery container. Lithium manganate having a spinel structure, or a compound oxide containing lithium, manganese, cobalt and nickel is used as a positive electrode active material, and amorphous carbon is used as a negative electrode active material. When continuous charging of a test piece of the positive electrode is performed by preparing a beaker cell, the compound oxide of the beaker cell which shows a voltage versus metal lithium plot having no plateau in an overcharged region of 5.2 to 5.8 V is selected as the positive electrode active material. The reaction between the compound oxide and the electrolyte solution proceeds almost uniformly, and a partial abrupt rise in temperature is thereby prevented.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004252911-A (JP)
Title: Search keyword analysis program, system and method
Inventor: TAIRA HIROSHI
IPC: G06F17/30
Filed: 2003-03-14
Abstract: <P>PROBLEM TO BE SOLVED: To compute a qualitative evaluation value of a search result by a search system based on an input search keyword.  <P>SOLUTION: A program 11 commands a computer to realize a function 13 of extracting access sequences indicating continuous access from the same access request side according to a Web log 7 that relates access request side identification data indicating access request sides and access destination identification data indicating access destinations accessed by the access request sides, a function 14 of extracting search keywords if access destination identification data indicating a search system and input search keywords are related in the Web log 7, and a function 37 of calculating qualitative evaluation values of the access sequences according to qualitative evaluation rules defining standards for calculating a qualitative evaluation value of a search result by the search system from an access state, and computing relation data indicating correspondences between the search keywords and the qualitative evaluation values.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004278110-A (JP)
Title: Device for attaching roof top mounted instrument
Inventor: TAKEOKA NOBUO
IPC: E04D13/18
Filed: 2003-03-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a device for easily attaching a roof top mounted instrument by enhancing stability for attaching strength to a roof structure of roof top mounted instrument.  <P>SOLUTION: A support member 5 indirectly supporting the roof top mounted instrument mounted on a roof top through an instrument fixing member 3 and a waterproof auxiliary cover member 4 is inserted into a through hole 2a of a cover body, and then the waterproof auxiliary cover member 4 and the fixing member 3 are loaded on the upper part of the support member 5. Wood screws 6 are inserted into a slot 3c formed in the fixing member 3, a through hole 4c formed in the waterproof auxiliary cover member 4 and a through hole 5c formed in the support member 5 to be fixed on a surface facing upward of a substrate material 7. Thereby the fixing member 3 being a support body, the waterproof auxiliary cover member 4 and the support member 5 are supported on the surface facing upward of the substrate material 7.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004277221-A (JP)
Title: Segment ring
Inventor: UEDA NOBUTO
IPC: C04B20/00
Filed: 2003-03-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a segment ring which can easily be assembled, with respect to the segment ring for the lining of a tunnel in the construction of an underground-laid article by a shielding method.  <P>SOLUTION: The segment ring is formed by joining and integrating a plurality of segments by prestressing consisting of the hardened body of a blend comprising: (A) 100 pts.mass cement having a Blaine specific surface area of 2,500 to 5,000 cm<SP>2</SP>/g; (B) 10 to 40 pts. mass fine particles having a BET (Brunauer-Emett-Teller) specific surface area of 5 to 25m<SP>2</SP>/g; (C) 15 to 55 pts.mass inorganic particles having a Blaine specific surface area of 2,500 to 30,000 cm<SP>2</SP>/g, and also having a Blaine specific surface area larger than that of the cement; (D) a water reducing agent; and (E) water. Preferably, the inorganic particles (C) consist of 10 to 50 pts.mass inorganic particles A having a Blaine specific surface area of 5,000 to 30,000 cm<SP>2</SP>/g and 5 to 35 pts.mass inorganic particles B having a Blaine specific surface area of 2,500 to 5,000 cm<SP>2</SP>/g. The blend may contain: (F) fine aggregate with a particle diameter of ≤2 mm; and (G) one or more kinds of fibers selected from the group consisting of metallic fibers, organic fibers and carbon fibers.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004276472-A (JP)
Title: Ink supply device and image forming apparatus
Inventor: HIRUMA TETSUYA
IPC: B41J2/175
Filed: 2003-03-17
Abstract: <P>PROBLEM TO BE SOLVED: To solve the problem that leakage of ink, defective ejection, or entrainment of a bubble occurs due to natural supplying or reverse flowing by virtue of a positional relationship of a hydraulic head difference between a face of a head connected to a sub-tank and a liquid level of a main tank.  <P>SOLUTION: This ink supply device comprises a piston pump 101 for conveying the ink. A pump seal 111 closes a communication passage 110a of a piston shaft 103A when the piston pump 101 conveys the ink or stops the conveyance, and then the flow of the ink is blocked at a portion between a liquid chamber 130 in a cylinder 102 at the side of an ink supply hole 121 and a liquid chamber 131 into which a supply needle 90 is inserted.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004282961-A (JP)
Title: Controller for switching power supply and switching power supply
Inventor: UEMATSU TAKESHI
IPC: H02M3/155
Filed: 2003-03-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a controller for a switching power supply which can control a current mode even without means for detecting inductance current and to provide the switching power supply.  <P>SOLUTION: The controller 7 for generating a drive signal (PWM signal) PS for controlling the switching power supply includes control signal set means 10, 11 for setting a control signal CS based on an output voltage V<SB>O</SB>and a target voltage V<SB>REF</SB>, a current estimating means 12 for estimating the inductance current based on the drive signal PS to generate an estimated current signal PC, DC component removing means 14, 15 for removing the DC component DC from the estimated current signal PC by extracting the DC component DC included in the estimated current signal PC, DC component reset means 13, 14 for resetting the extracted DC component DC at each predetermined time, and a comparing means 16 for comparing the control signal CS with the estimated current signal PC' after the component DC is removed.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004282972-A (JP)
Title: Pulse generation ic for motor control
Inventor: ENDO KAZUYA
IPC: H02P8/00
Filed: 2003-03-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a pulse generation IC for motor control capable of smooth continuous operation without any interruption during the operation in continuously performing a plurality of positioning operations.  <P>SOLUTION: This pulse generation IC for motor control comprises: a first speed pattern for performing constant-speed driving to a target position after a motor 10 is started at a constant speed as a speed pattern of the positioning operation; a second speed pattern for performing constant-speed driving to a target position or a deceleration starting position after acceleration of the motor 10 is started; and a third speed pattern for performing constant-speed driving to the deceleration starting position after the motor 10 is started at a constant speed and then for performing deceleration and stopping.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2003276671-A (JP)
Title: Hollow crank arm for bicycle and manufacturing method therefor
Inventor: VALLE MAURIZIO
IPC: G05G1/30
Filed: 2003-03-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a hollow crank arm for a bicycle which is lightweight and has excellent strength in structure, and a manufacturing method therefor.  <P>SOLUTION: This hollow crank arm for bicycle, consisting of a slender body, has both ends formed with an area (28) connected with a bottom bracket and an area (34) connected with a pedal. The body is formed with a slender cavity portion (22). There are provided two solid terminal portions (28, 34) formed with the areas for connecting the bottom bracket spindle and the pedal respectively on both sides of the cavity portion (22). The body is formed by hot drawing using a punch, formed out of light metal by casting using a core, or formed by bridging the texture of a structural fiber base embedded in a synthetic resin substrate in a mold.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004285132-A (JP)
Title: Styrenic polymer resin
Inventor: IKEMATSU TAKESHI
IPC: C08L53/02
Filed: 2003-03-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a styrenic polymer resin which comprises a styrene-butadiene block copolymer and a styrene-(meth)acrylate (butyl acrylate) copolymer, maintains excellent characteristics such as excellent transparency, low temperature shrinkability, stiffness, dimensional shrinkability, and toughness, and solves problems such as the development of flow evenness into a film and the non-smoothness of the film surface.  <P>SOLUTION: This styrenic polymer resin comprising a composition which comprises (A) 5 to 95 wt. % of a styrene-(meth)acrylate copolymer, (B) 95 to 5 wt. % of a styrene-conjugated diene block copolymer and (C) 0 to 30 wt. % of a polymer compatible with the styrenic polymer (A) or (B) is characterized in that (e) the content of an isoprene bond units based on conjugated diene bond units constituting the styrene-conjugated diene block copolymer is 2 to 45 wt. %.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004283932-A (JP)
Title: Built-in type drill
Inventor: TAKIGUCHI MASAHARU
IPC: B23B51/00
Filed: 2003-03-20
Abstract: <P>PROBLEM TO BE SOLVED: To prevent run-out and to achieve highly precise drilling by inhibiting cutting resistance and heating as far as possible.  <P>SOLUTION: A tip 3 has a back taper formed on the outer surface to be inclined so that its diameter becomes smaller from the head toward the base end. The back taper has a plurality of steps with the angle to the axis of a drill body 2 becoming larger from the head of the drill body 2 toward a shank part. For example, the back taper consists of two steps: a first tapered part 71 disposed on the head side of the drill body 2 and a second tapered part 72. The angle θ1 of the second tapered part 72 is larger than the angle θ of the first tapered part 71.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004286986-A (JP)
Title: Relay lens system
Inventor: KOYAMA KENICHI
IPC: G02B7/00
Filed: 2003-03-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a relay lens system whose lens can have its focus easily adjusted while prevented from gravitationally falling and which can be made small-sized on the whole and inexpensive.  <P>SOLUTION: The relay lens system fitted between a microscope main body and an electronic imaging device is equipped with at least one relay lens 33 which relays an image formed through the objective of a microscope, an internal frame 32 holding the relay lens 33, an external frame 31 which houses the internal frame 32 movably along an optical axis, a groove part 50 which is formed on the outer circumference of the internal frame 32 along the outer circumference, a rotation member 40 which is freely rotatably held on the external frame 31, and an eccentric pin which is formed deviating from the axis of rotation of the rotation member and engaged with the groove part to convert the rotational motion of the rotation member into linear motion along the optical axis of the internal frame, and a resistance member which gives resistance for rotation prevention to the rotation member 40.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004133375-A (JP)
Title: Display device
Inventor: TAKEUCHI YUKIHISA
IPC: G02B26/08
Filed: 2003-03-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a display device which allows a circuit for applying driving voltage to an actuator part to operate at a signal level used in an ordinary logic circuit and realizes the miniaturization of a driving circuit system.  <P>SOLUTION: The display device is provided with: a logic gate 90 which inhibits the input of a data signal Sd from a signal line 76 when unselected and permits the input of the data signal Sd from the signal line 76 when selected on the basis of a drive signal Ss (select voltage) supplied from a select line 74; a capacitor C1 which holds the output of the logic gate 90 when selected and outputs the held output as a control voltage Vc1; and a drive voltage generating circuit 94 which generates drive voltage Vd for subjecting the actuator part 22 to displacement control in accordance with the control voltage Vc1 from the capacitor C1.  <P>COPYRIGHT: (C)2004,JPO