baber/WOPTO huggingface dataset:
Patent JP-2004032705-A (JP)
Title: Amplifier circuit having gain increase effect
Inventor: LEE SHENG-HANN
IPC: H03G3/00
Filed: 2003-04-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide an amplifier circuit for minimizing mirror effect and for drastically improving gain as compared with conventional technologies.  <P>SOLUTION: The amplifier circuit having gain increase effect comprises a first transistor; a first additional transistor, that provides a capacitor on the junction surface between a base electrode and a collector by equipping a floated emitter, connects the base electrode to the base electrode of the first transistor, is formed on the same chip as the first transistor, matches impedance with the first transistor, and has the same amount of mirror capacitor as the first transistor; and an inverter element that is coupled to the collector end of the first transistor, is further coupled to the first additional transistor, is formed on the same chip as the first transistor, and has reverse height and polarity for the output voltage, as compared with those of the first transistor.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004325613-A (JP)
Title: Key top of keyboard for musical instrument
Inventor: MUTO NORITAKA
IPC: G10B3/12
Filed: 2003-04-23
Abstract: <P>PROBLEM TO BE SOLVED: To make a finger not likely to jump out a key top of a keyboard for musical instrument such as a piano, an organ, and others in a keying method of pushing the finger out forward even when the keyboard has a small surface.  <P>SOLUTION: The key top has a dam for locking a finger at its top-surface inner edge. The top surface of the key top is preferably slanted downward from the front side to the inner side and then raised slightly from the bottom part to form the dam. When a conventional keyboard for musical instrument uses key tops which each have a plane top surface and a small surface and is played by pressing a key down while pushing a finger out forward, the finger which is pressed down is likely to jump out of the key top, so powerful keying is impossible. Consequently, solved is the problem that a finger possibly jumps out of a key top in a keying method of pushing the finger out forward even when the key top has a small surface.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004327584-A (JP)
Title: Optical interconnection circuit, method for manufacturing thereof and electronic apparatus
Inventor: KONDO TAKAYUKI
IPC: G02B6/122
Filed: 2003-04-23
Abstract: <P>PROBLEM TO BE SOLVED: To provide an optical interconnection circuit which can perform light control introduced into an optical waveguide with high precision, enables easy miniaturization, and can be easily manufactured.  <P>SOLUTION: The optical interconnection circuit is equipped with a surface light emitting laser 1 and a first light receiving element 5 constituted of minute tiling-like element formed on a substrate 10 and a first light receiving element, an optical waveguide 4 having optical waveguide material which is formed on the substrate 10 and optically coupled with a light emitting part 1a of the surface light emitting laser 1 and a light receiving part 5a of the first light receiving element 5, an integrated circuit chip 20 which is flip chip mounted on the substrate 10 and arranged so as to cover at least a part of the optical waveguide 4, and a photodiode 2 which is included by the integrated circuit chip 20 and formed at a position facing the optical waveguide 4.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004241100-A (JP)
Title: Optical disk unit, method for moving beam spot, and computer program feasible in optical disk unit
Inventor: YAMADA SHINICHI
IPC: G11B19/28
Filed: 2003-04-25
Abstract: <P>PROBLEM TO BE SOLVED: To allow a stable access to an optical disk which is made higher in density and greater in capacity.  <P>SOLUTION: The optical disk unit for accessing the optical disk having an information surface is equipped with a light source which radiates light, a lens which focuses the light emitted from the light source, a focus section which forms a beam spot in a focusing state on the information surface by controlling the position of the lens, a spherical aberration correcting section which changes the focusing state of the beam spot by changing the spherical aberration of the lens according to the driving value of a supplied driving signal in the position of the lens for forming the beam spot being in the focusing state, a focus signal forming section which forms the signal matching the focusing state of the beam spot, a measurement section which measures the loop gain of a focus control system regulated by the lens, the focus section, the spherical aberration correcting section and the focus signal forming section based on the formed signal, and a control section which determines the driving value of the spherical aberration correcting section based on the measured loop gain.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004324836-A (JP)
Title: Dust collector for air valve
Inventor: ISHIDA NAOKI
IPC: F16K51/00
Filed: 2003-04-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a dust collector for an air valve that can prevent the occurrence of failure such as the leakage of water from the air valve that is caused by the dust in the flowing water.  <P>SOLUTION: In the dust collector 100 for the air valve 8 installed on a water pipeline 10, a case 1 is installed between a repair valve 7 on an inlet side of water flowing to the air valve 8 and the air valve 8, and a screen 2 for dust collection is attached in this case 1 so that it can be attached or removed. A opening cover 3 for cleaning is prepared on the case 1 and the screen 2 for dust collection is attached or removed by opening this cover 3. Also, a drain valve 4 is prepared for draining the water in the case 1.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004327902-A (JP)
Title: Miniaturized high-voltage transformer
Inventor: MARUYAMA KAZUMASA
IPC: H01F38/08
Filed: 2003-04-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a high-voltage transformer which is easy to miniaturize and includes excellent voltage resistance performance and magnetic characteristics even after miniaturization.  <P>SOLUTION: A miniaturized high-voltage transformer 1 includes a secondary winding wire assembly 6 composed of a stick-like magnetic substance 7 and a secondary winding wire 8 that is wound around the outer periphery of the inner magnetic substance 7, a transformer bobbin 2 with which a wall part 3B including an opening 3A on one terminal side in the lengthwise direction of a hollow insulator and a small window 4 on the other terminal side is provided and an outer magnetic substance insert frame 5 formed integrally with the hollow insulator is provided on one side in the breadthwise direction of the hollow insulator, a primary winding wire 9 that is wound around the outer periphery of the transformer bobbin 2 on the side of the opening 3A, and a U-shaped outer magnetic substance 10 that is inserted into the outer magnetic substance insert frame 5. The secondary winding wire assembly 6 is inserted into the transformer bobbin 2, and a high-voltage side terminal 8A of the secondary winding wire 8 is led out of the small window 4 in the lengthwise direction of the transformer bobbin 2.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004325042-A (JP)
Title: Bathtub tap hole device
Inventor: YAMAMOTO SHIGEMI
IPC: F24H9/00
Filed: 2003-04-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide an improved bathtub tap hole device for smoothing reheating operation, and ensuring flanged male screw tube connection.  <P>SOLUTION: In the bathtub tap hole device, a tube 11 is connected to a front end of a hot water pipe 15 inserted in an inner tube 25 of a male screw tube 20 communicated with a passage 31 of a fitting 30, an outlet 1101 of the tube 11 is communicated with an outlet 120 of a front end closed tube 12, a tube 13 is connected to a front end of a hot water pipe 16 connected to the inner tube 25 of the male screw tube 20 communicated with a passage 32 of the fitting 30, an outlet 1301 of the tube 13 is communicated with an outlet 140 of a front end closed tube 14, a valve plate 19 is provided for opening an outlet 111 of the tube 11 and closing an outlet 131 of the tube 13, or closing the outlet 111 of the tube 11 and opening the outlet 131 of the tube 13, and during reheating operation, the outlet 111 of the tube 11 is opened and the outlet 131 of the tube 13 is closed to supply hot water and return hot water is sent in from an outlet 140 of a tube 14, or the outlet 131 of the tube 13 is opened and the outlet 111 of the tube 11 is closed to supply hot water and the return hot water is sent in from an outlet 120 of a tube 12.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004333543-A (JP)
Title: System and method for speech interaction
Inventor: NOMURA KAZUYA
IPC: G10L13/08
Filed: 2003-04-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide a speech interaction system in which the output of a system-side speech is changed according to the skill of a user when the system side and the user interact with each other.  <P>SOLUTION: A speech interaction system 1 is equipped with a loudspeaker 20 capable of outputting system-side speech to the user, a microphone 21 which converts a speech that the user speaks to a speech signal in accordance with the system-side speech outputted from the loudspeaker 20, a speech recognition part 23 which recognizes the user speech inputted to the microphone 21, a speaking timing detection part 27 which detects speaking timing based on the speech signal generated by converting the user speech by the microphone 21 and an answer speech signal from an answer generation part 26, a skill determination part 50 which determines the user's skill of speech interaction by using the speaking timing, and a speech output change part 60 which changes the output contents of the system-side speech according to the skill determined by the skill determination part 50.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004330805-A (JP)
Title: Vehicle behavior control device
Inventor: SUZUKI HIDETOSHI
IPC: B60W30/02
Filed: 2003-04-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide a vehicle behavior control device capable of simultaneously realizing elimination of a sense of incongruity of a driver in turning in a differential limit release state, suppression of interference of control in turning in a differential limit state, and securement of turning behavior stabilizing effect in turning in the differential limit state.  <P>SOLUTION: The vehicle behavior control device is provided with a differential limiting means capable of limiting rotation difference between a front wheel and a rear wheel or between a left wheel and a right wheel, and a VDC control unit controlling braking force of at least one wheel for controlling turning behavior in accordance with a turning state of a vehicle independently of braking operation of the driver. Differential limit detecting steps S1 and S2 are provided to detect that the rotation difference of the front and rear wheels or of the left and right wheels is limited by the differential limiting means, and the VDC control unit 23 is made to be a means for advancing the start of operation of VDC control when detecting that differential is limited.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004336175-A (JP)
Title: Event performing system, and system and method for managing event
Inventor: WATABE NAOYA
IPC: H04N21/2187
Filed: 2003-04-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide an event performing system with which much more persons can enjoy an event with the almost same presence as an event hall.  <P>SOLUTION: The event performing system is provided with event hall systems 2-1 and 2-2 which are installed in the event hall and can emit a video and sound of the event that is actually performed in the event hall on a real time basis; a plurality of net live place systems 3-1, 3-2 and 3-3 which are installed in different net live places and include reproducing devices reproducing the video and sound, which are emitted from the event place systems 2-1 and 2-2; and a wide band network 1 which is connected to the event place systems 2-1 and 2-2, and a plurality of the reproduction devices and can transmit the video and sound in real time.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2003345676-A (JP)
Title: Dual-memory system
Inventor: TANABE TAKASHI
IPC: G06F13/00
Filed: 2003-05-01
Abstract: <P>PROBLEM TO BE SOLVED: To make a computer highly reliable and to facilitate error remediation and repair replacement in system operation.   <P>SOLUTION: A processor 1 and a system bus controller 3 are connected through a CPU bus and the system bus controller 3 and a memory device 4 are doubled and connected by a couple of system buses 13, and error detecting circuits 6, 80 and 85 which detect errors of respective buses, comparing circuits 51, 104 and 105 which compare output contents of the buses, bus switching circuits 7, 82 and 83, and mode setting circuits 100, 101 and 102 are provided in the system bus controller 3 and memory device 4. Outputs of error detecting circuits are exchanged between a couple of devices and the bus switching circuits are controlled according to the detection result of the error detecting circuit and setting contents of the mode setting circuits from the opposite side.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004056094-A (JP)
Title: Mram reduced in write current
Inventor: KO KENCHU
IPC: H01L21/8246
Filed: 2003-05-06
Abstract: <P>PROBLEM TO BE SOLVED: To provide an MRAM structure which obtains more magnetic fluxes induced by infinite current lines around a magnetic memory cell due a proper modification of a layout, so that power consumption and write current are reduced.  <P>SOLUTION: The memory cell comprises a plurality of conductive metal pillars arranged on both sides of an MTJ (magnetic tunnel junction) cell. A total magnetic field is increased by induction around the MTJ cell or the metal pillars, so that the intensity of a magnetic field on the MTJ cell is remarkably increased, thereby the write current of the MRAM is reduced. Thus lower power consumption of the MRAM is achieved.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004331320-A (JP)
Title: Elevation device
Inventor: SHINKAWA NAOYA
IPC: B66D1/54
Filed: 2003-05-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide an elevation device having a simple structure and capable of preventing drop due to abrupt descent of a suspension tool.  <P>SOLUTION: A terminal part of a lever 10 is turnably connected with a side face of a flange part 2a in a drum 2 rotating in the interlocking relationship with ascent and descent of the suspension tool, and a tip part of the lever 10 is energized in the direction of shaft axis of the drum 2 through a tensile coil spring 12. When the tip part of the lever 10 turns on an outer side of the drum 2 by centrifugal force, a reinforcing block 14 on which one side of a rear face (rear face of a projecting part 10a for the direction of rotation of the drum 2 when the susepnsion tool lowers) 10b of the projecting part 10a in the lever 10 is abutted is fixed to the flange part 2a. Four collision blocks 15 against which the other side of a front face 10c of the projecting part 10a in the lever 10 collides are fixed at a substantially equal interval in the circumferential direction in a gear case opposing to the flange part 2a.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004332056-A (JP)
Title: Composite material, and its production method
Inventor: KIDA MASAHIRO
IPC: C22C101/14
Filed: 2003-05-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide a composite material having a dense microstructure in spite of its large/complicated shape, and provided with excellent physical properties such as high fracture toughness and easiness in working.  <P>SOLUTION: The composite material 5 contains a composite structure in which a dispersion material is dispersed into a matrix comprising an aluminide intermetallic compound as a constituent. A first composite structure 12 (first structure 13) in which a first dispersion material 37 is dispersed into a first matrix 36 comprising a first aluminide intermetallic compound, and a structure (second structure 14) of the material same as or different from that of the first composite structure 12 composed of at least one kind selected from the group consisting of a second composite structure 15 in which a second dispersion material is dispersed into a second matrix comprising a second aluminide intermetallic compound, a metallic structure 16 and a ceramic structure 17 are coexistent in a state of being mutually partitioned/held in each existing region.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004334085-A (JP)
Title: Liquid crystal display device
Inventor: NAKAI MASAMITSU
IPC: G02F1/1368
Filed: 2003-05-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a liquid crystal display device which can suppress defects in image quality from occurring by reducing a gap between pixel electrodes.  <P>SOLUTION: The liquid crystal display device has a TFT substrate 1 where pixel electrodes are arranged in matrix, a counter substrate which is arranged opposite the TFT substrate across a specified gap, and liquid crystal held in the gap between the TFT substrate and counter substrate, and adjacent pixel electrodes are formed in different pixel electrode layers.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004332900-A (JP)
Title: Bearing cage
Inventor: OWATARI KIYOTO
IPC: F16C35/067
Filed: 2003-05-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a highly reliable bearing cage manufacturable at a low cost without affecting bearing noises and a bearing life by pressingly adhering the outer ring raceway surface for balls of a ball bearing without contraction and deformation.  <P>SOLUTION: This bearing cage comprises a circular burring hole 11 slightly larger in diameter than the outer diameter ϕA of the ball bearing 2, allows a square shape capable of forming a circumscribed circle slightly larger than the inner diameter ϕB of the burring hole 11 to pass therethrough, and projections 12 allowing the ball bearing 2 to be press-fitted are formed on both sides of the square shape holding corners.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004006867-A (JP)
Title: Method of forming semiconductor layer
Inventor: HASEGAWA YOSHITERU
IPC: H01S5/343
Filed: 2003-05-13
Abstract: <P>PROBLEM TO BE SOLVED: To surely reduce a resistance value of a p-type III-V compound semiconductor layer.  <P>SOLUTION: A low-temperature buffer layer 11, a GaN layer 12 and a p-type Al<SB>0.07</SB>Ga<SB>0.93</SB>N layer 13 are grown in this order on a sapphire substrate 10. Then, after the sapphire substrate 10 is heated at, for example, the temperature rise rate of 10°C/s from a room temperature (25°C) to 750°C in an anneal furnace, the substrate is held at 750°C for one hour. Then the substrate is cooled at, for example, the temperature fall rate of 10°C/s to the room temperature. In this way, the p-type Al<SB>0.07</SB>Ga<SB>0.93</SB>N layer 13 is heat-treated. In a heating process of this heat treatment process, while a nitrogen gas is introduced at the flow rate of 3mL/min (standard state) to the inside of the anneal furnace, pressure in the anneal furnace is adjusted. In this case, since an internal stress of the p-type Al<SB>0.07</SB>Ga<SB>0.93</SB>N layer 13 is relaxed, hydrogen atoms inactivating p-type impurities are discharged.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004137450-A (JP)
Title: Method for producing resin composition and resin composition
Inventor: OTA YOSHIO
IPC: C08L71/12
Filed: 2003-05-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for producing a flame retardant polyphenylene ether resin composition having an excellent productivity, properties and coloring property, and a resin composition obtained from the same.  <P>SOLUTION: This method for producing the flame retardant polyphenylene ether resin composition comprises a first process of melting and kneading the polyphenylene ether powdery material with a polystyrene-based resin by using an extruder to produce intermediate raw material pellets and a second process of melting and kneading the intermediate raw material pellets and the polystyrene-based resin with 5-30 pts. wt. flame retardant based on 100 pts. wt. resin part by using the extruder.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004339561-A (JP)
Title: Film manufacturing method and film manufacturing apparatus
Inventor: SAITO TAKAO
IPC: C23C16/27
Filed: 2003-05-15
Abstract: <P>PROBLEM TO BE SOLVED: To control the film thickness so as to be locally increased when manufacturing a film on a film deposition surface of a substrate 4 by the plasma CVD method.  <P>SOLUTION: A film 6 is manufactured on a film deposition surface 4a of a substrate 4 by the plasma CVD method. By locally generating the magnetic field A on the film deposition surface 4a of the substrate 4, the ratio of the maximum thickness of the film 6 to the minimum thickness thereof is set to be ≥2. Preferably, a magnet 5 is locally installed on a back surface 4b side of the substrate 4.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004338541-A (JP)
Title: Agricultural working vehicle
Inventor: KAWAKAMI TAKUJI
IPC: B60R3/00
Filed: 2003-05-15
Abstract: <P>PROBLEM TO BE SOLVED: To provide an agricultural working vehicle in which, even when a fuel tank 35 is installed in a structure having a fuel filler port 36 on the upper surface side of a hood 3 of a tractor 1 or the like, a fuel filler tank 29 can be lifted up to put fuel after inserting a fuel filler hose 37 in the fuel filler port 36, and fueling workability is enhanced by lifting the fuel filling tank 29 on a tank loading table 30 and supporting the tank thereby, forward visibility is not impaired by accommodating the tank loading table 30 during agricultural work, and the drive operability of traveling work along ridges or the like can be easily ensured.  <P>SOLUTION: The tank loading table 30 which is freely accommodated is provided on an agricultural working vehicle such as a tractor or a rice transplanter.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004338039-A (JP)
Title: Workpiece grinding method and grinding device
Inventor: MUROYA SHINGO
IPC: B24B13/04
Filed: 2003-05-15
Abstract: <P>PROBLEM TO BE SOLVED: To shorten machining correction time, that is, to shorten set-up time while effectively preventing excessive load from being applied to a grinding wheel due to a correction error by easily confirming an outer uncut protrusion or an inner uncut protrusion, and positively and accurately correcting the uncut protrusion.  <P>SOLUTION: A control device 15 stops the rotation of a workpiece 1 after spark-out machining of the workpiece 1, forms a machined mark 1a in the workpiece 1 by allowing either one of the workpiece 1 and a straight cup grinding wheel 8 to cut in by a micro quantity (preferably 0.005 mm to 0.1 mm), determines a relative position (the outer uncut protrusion or inner uncut protrusion) to the machined mark 1a of the uncut protrusion 1b formed on the workpiece 1, and performs correction machining based on the determined result.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004343473-A (JP)
Title: Device, method and program for decoding variable-length code
Inventor: KANESAKA KOKI
IPC: H04N19/50
Filed: 2003-05-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide a device, a method and a program for decoding variable-length code capable of achieving high speed decoding process.  <P>SOLUTION: There are provided a conversion table for storing fixed-length codes corresponding to the variable-length cods respectively, a fixed-length table for storing predetermined coefficients corresponding to the fixed-length codes, respectively, a fixed-length conversion unit for successively extracting the variable-length codes from an encoded stream and converting the extracted variable-length codes into the fixed-length codes, and a fixed-length decoding unit for extracting a plurality of the fixed-length codes and decoding the plurality of the extracted fixed-codes into the predetermined coefficients.  <P>COPYRIGHT: (C)2005,JPO&NCIPI