baber/WOPTO huggingface dataset:
Patent JP-H07154929-A (JP)
Title: Power supply circuit
Inventor: SAITO YOSHIHIRO
IPC: H01M10/44
Filed: 1993-11-29
Abstract: PURPOSE:To provide roughly constant d.c. power by switching power supplied from a battery power supply by rectangular wave output whose duration corresponds to the voltage of the battery power supply, and carry out smoothing. CONSTITUTION:Power supply is carried out from a battery 2 to a load 1 through a smoothing circuit 33 and a switching element 4. The switching element 4 is operated by the output of a comparator 5. The comparator 5 compares the output voltage of a triangular wave oscillator 6 with that of a differentiator 7 to output comparative results. The ON/OFF operation of the triangular wave oscillator 6 and the differentiator 7 is carried out with a photocoupler. The ON/OFF operation of the switching element 4 is controlled by the output of a comparator 5 which outputs a rectangular wave whose duration corresponds to voltage, so power supply period to the load 1 is shortened for adjustment of supplied power when the voltage is high at the time of charging a battery. It is thus possible to prevent excessive voltage from being applied to the load 1 and protect the load 1.
Patent JP-H11242983-A (JP)
Title: Spark plug for internal combustion engine
Inventor: ABE NOBUO
IPC: H01T13/20
Filed: 1998-11-11
Abstract: PROBLEM TO BE SOLVED: To provide a long-life spark plug for an internal combustion engine having a noble metal chip of high strength and toughness. SOLUTION: A spark plug 10 for an internal combustion engine comprises a center electrode 2 held in a through hole 41 in an insulator 4, a housing 5 for holding the insulator 4, and an earth electrode 3 provided on the housing 5. A spark gap G is provided between the center electrode 2 and the earth electrode 3. At least, one of the electrodes 2, 3 is provided with a noble metal chip 6 joined thereto and having a groove part on a surface thereof confronting the other electrode. The size of crystal grains in crystal grain structure of the noble metal chip 6 satisfies relations of N>K and (N+K)/2<=50 μm, where the mean grain size in the axial direction of the noble metal chip 6 is N μm and the mean grain size in the radial direction thereof is K μm.
Patent JP-H04193774-A (JP)
Title: Metallic fiber-reinforced heat resistant ceramic composite body
Inventor: ITO MASAYUKI
IPC: C04B35/76
Filed: 1990-11-27
Abstract: PURPOSE:To obtain a metallic fiber-reinforced heat resistant ceramic composite body with high strength and toughness under high temp. and to resisting to thermal fatigue of repeated cycles of heating and cooling and stabilized use for a long period by disposing specified heat resistant metallic fiber into the ceramic base body. CONSTITUTION:To the surface of heat resistant metallic fiber (preferably tungsten alloy), Nb layer consists of Nb or Nb alloy is provided and additionally the relevant Nb layer is coated with iron base, Ni base or Co base super alloy layer and disposed in the ceramic base body to make the metallic fiber- reinforced heat resistant ceramic composite body. When Al or Al alloy layer is interposed between the Nb layer and the super alloy layer, mutual diffusion at high temp. is avoided and enable to prevent deterioration of the reinforced body consisting of the heat resistant metallic fiber.
Patent JP-2000149832-A (JP)
Title: Flat display device
Inventor: KIKUCHI KAZUO
IPC: H01J29/87
Filed: 1998-11-11
Abstract: PROBLEM TO BE SOLVED: To reduce electrons based on reflection and directed from a spacer arranged between mutually opposed substrates constituting a flat display device toward a fluorescent screen or secondary electrons so as to stabilize luminous display and so as to improve image quality. SOLUTION: A first and second substrates 1, 2 are arranged opposedly to each other at a required interval via a spacer 13 having a required height, and the periphery of the opposing parts in the first and second base boards 1, 2 is sealed airtightly so that an airtight flat space is formed between the first and second substrates 1, 2. On the first substrate 1 side, an electron emitting part 4 is arranged, while a fluorescent screen 5 is formed on the second substrate 2 side. When an electron taken out from the electron emission part 4 is accelerated so as to be radiated to the fluorescent screen 5, the fluorescent screen 5 is excited and illuminated for carrying out objective luminous display in a flat display device.  On the spacer surface, minute projections and recesses 14 are formed, and the number of electrons based on reflection and directed from the spacer to the fluorescent screen 5 or secondary electrons is reduced, so that the stabilization of luminous display and improvement in image quality can be accomplished.
Patent JP-2000145915-A (JP)
Title: Ball screw
Inventor: TAKEDA RYUJI
IPC: F16H25/24
Filed: 1998-11-11
Abstract: PROBLEM TO BE SOLVED: To provide a ball screw having an enhanced sealing property. SOLUTION: Part of a seal member 21 attached on the nut of a ball screw is peripherally split into a plurality of blocks 214...214 by a plurality of slits 213...213 extended to the midway of the seal member 21 from an outwardly facing side in the axial direction of the nut. In a pair of end faces 214a, 214b involved in the peripheral direction of each block 214, one end face 214a directed in the rotating direction (the arrow mark F direction) of the nut associated with the screw shaft 11 applied when the screw shaft 11 is fed into the nut is inclined to gradually displace to the opposite side to the rotating direction in the radial direction of the nut toward the outer peripheral side from the inner peripheral side of the seal member 21.  The other end face 214b facing the end face 214a is provided in the radial direction or in the inclined direction on the opposite side to the end face 214a in the radial direction.
Patent JP-H11153169-A (JP)
Title: High damping rubber composition
Inventor: KIYOHARA YOSHIHARU
IPC: C08K5/44
Filed: 1997-11-21
Abstract: PROBLEM TO BE SOLVED: To improve damping characteristic by being providing with natural rubber, chloroprene rubber, sulfur, zinc oxide, and vulcanized accelerating agent which natural rubber is vulcanized and chloroprene rubber is not vulcanized. SOLUTION: A high damping rubber composition is provided with a natural rubber, chloroprene rubber, sulfur, zink oxide, and vulcanized accelerator which natural rubber is vulcanized and chloroprene rubber is not vulcanized. The zinc oxide is acted as secondary vulcanized agent on the natural rubber and the chloroprene rubber, and a part of the chloroprene rubber is vulcanized. In the chloroprene rubber made of synthetic rubber, a damping characteristic is reduced when vulcanization is progressed. In the high damping rubber production material, the vulcanized accelerator is formed in such a constitution that natural rubber is vulcanized and chloroprene rubber is not vulcanized, and the damping characteristic can be exhibited by the chloroprene rubber.
Patent JP-H11153056-A (JP)
Title: Control device of diesel engine
Inventor: AIYOSHIZAWA EIJI
IPC: F02D41/38
Filed: 1997-11-21
Abstract: PROBLEM TO BE SOLVED: To simultaneously reduce NOx and PM being in the relationship of tradeoff by calculating a fuel injection period and an ignition delay period, and increasingly correcting a maximum lift quantity of a fuel injection valve so that an injection period in the same fuel injection quantity becomes shorter than the ignition delay period. SOLUTION: High pressure fuel accumulated in a common rail 26 is supplied to a fuel injection valve to directly inject fuel to a combustion chamber 56 of an engine 51. A controller 60 controls a maximum lift quantity of the fuel injection valve so as to shorten a fuel injection period when an ignition delay period is short by calculating an actual ignition delay period and a fuel injection period to control so that the ignition delay period at low temperature premixed combustion time becomes longer than the fuel injection period.  An operation is performed on the fuel injection period and the ignition delay period on the basis of these by inputting a signal from a lift sensor 61 to detect a fuel injection starting period and an injection finish period of the fuel injection valve and a signal from a cylinder internal pressure sensor 62 to detect a combustion starting period to the controller 60.
Patent JP-H06143043-A (JP)
Title: Minute hole electric discharge machining method and device
Inventor: FURUTA SEIJI
IPC: B23H9/14
Filed: 1992-11-04
Abstract: PURPOSE:To process plural minute holes with the same diameter regardless of the number of holes, by carrying out an electric discharge machining by using a continued electrode wire of a minute diameter. CONSTITUTION:A continued minute diameter electrode wire 10 drawn out from a reel 11 is held between a driving roller 15 and a presser roller 18, and drawn out to the lower side. A guide member 20 to guide the electrode wire 10 drawn out by the rollers 15 and 18 is installed to the lower side holding board 21 of a frame 1. The delivered electrode wire 10 advances while rotating in the guide hole 21 of the guide member 20, and some level of bending of the electrode wire 10 is corrected while it passes through the guide hole 12. Then, by applying a voltage between a work W and a contact chip 12, a discharge is generated between the electrode wire 10 and the work W, so as to make it possible to process a minute hole H in the work W.
Patent JP-H11163218-A (JP)
Title: Package structure
Inventor: YATSUDA HIROMI
IPC: H01L21/60
Filed: 1997-11-21
Abstract: PROBLEM TO BE SOLVED: To mount a chip and a peripheral circuit using a single package, by housing an insert substrate and a hip in order in the package, and connecting, at least, a chip side conductive pad and a chip connection conductive pad with a bump allocated on a chip side conductor package. SOLUTION: With an elastic surface wave chip (chip) 36 provided with an input pad and an output pad, an input pad 80 and an output pad 82 are provided at a position facing each pad of the chip 36 on a surface side of an insert substrate 74. On a bottom surface side of the insert substrate 74, an input pad 90, an output pad 92, a ground pad 94, and an inductor 96 of pattern conductor are formed. At a package 40, an input pad and an output pad are formed. Bumps 76 and 78 are allocated at the input pad 80 and the output pad 82, etc., of the insert substrate 74, which is dropped into the package 40, and then the chip 36 is dropped, and by applying ultrasonic wave, etc., pads of the chip 36, the insert substrate 74, and the package 40 are electrically connected.
Patent JP-H09162091-A (JP)
Title: Formation of compound semiconductor fine pattern
Inventor: MORI KAZUO
IPC: H01S5/00
Filed: 1995-12-11
Abstract: PROBLEM TO BE SOLVED: To form a fine specified pattern at low cost on the surface of a compound semiconductor or on the interface between a compound semiconductor and an insulator or a semiconductor of different kind. SOLUTION: A glass grating pattern 2 is formed on the surface of a glass substrate 1. The glass substrate 1 and an InP substrate 3 are treated with sulfuric acid based liquid and pasted surface to surface. A specific weight is then mounted thereon and both substrates are heat treated in a specified atmosphere and bonded. During heat treatment, mass migration of constitutive atoms of the InP substrate 3 takes place and the gap of the glass grating pattern 2 is filled thus transferring an inverted glass grating pattern 2 onto the surface of the InP substrate 3. Finally the glass substrate 1 is removed by etching to produce an InP substrate 3 on which an InP grating pattern is formed.
Patent JP-H10167822-A (JP)
Title: Ceramic material calcined at low temperature and wiring board consisting of the ceramic material
Inventor: HAMADA NORIAKI
IPC: H05K1/03
Filed: 1996-12-02
Abstract: PROBLEM TO BE SOLVED: To obtain a ceramic material which can be calcined at low temp., has excellent toughness and strength characteristics and is suitable as an insulating substrate material for a wiring board of an electronic device and on which a metalized wiring layer using Ag and Cu metals can be formed, by calcining a mixture of glass and a filler to produce enstatite crystals of a specified aspect ratio in the obtd. sintered body. SOLUTION: This low temp. calcined ceramic material is obtd. by calcining a mixture of glass and a filler, and the obtd. ceramic material contains as a micro structure, dispersion of acicular or columnar enstatite crystals (MgO.SiO2 ) having >=3 average aspect ratio. As for the glass component, for example, a silicate glass having 6 to 18ppm/ deg.C coefft. of thermal expansion at 40 to 400 deg.C is used. As for the filler component, for example, a ceramic filler having >=6ppm/ deg.C coefft, of thermal expansion at 40 to 400 deg.C is used. As for the calcining temp., the mixture is first kept at 830 to 900 deg.C and then calcined at 850 to 1050 deg.C.
Patent JP-H03183028-A (JP)
Title: Optical disk device
Inventor: INOUE TAKASHI
IPC: G11B7/085
Filed: 1989-12-12
Abstract: PURPOSE:To simplify the configuration of a feeding system by integrally moving two optical heads close to an objective track. CONSTITUTION:When a drive control circuit 7 issues a retrieval instruction, a retrieval control circuit 6 simultaneously moves two integrated optical heads 3 to the objective track by a feeding servo 5 and a feeding stand 11. At such a time, a moving amount counting circuit 10 counts how many tracks the light beams of the respective heads 3 cross, the error between a current position and the objective track is calculated. When the position of any one of the optical heads arrives in a prescribed range from the objective track, the circuit 6 stops integrally moving the two heads 3 by the servo 5. Afterwards, the heads 3 are respectively independently controlled by a tracking servo 4 and the light beams are moved to the objective track. Thus, even for an optical disk device to parallelly execute recording and reproducing onto both sides while arranging the heads 3 on the both sides of an optical disk 1, the configuration of the feeding system can be simplified.
Patent JP-H08211970-A (JP)
Title: Power system for computer and its control method
Inventor: ROBAATO EMU BAUAA
IPC: G06F1/30
Filed: 1995-11-16
Abstract: PROBLEM TO BE SOLVED: To supply the output of a lamp shape for not damaging a constituting element at the time of turning ON a software by providing the housing of a computer provided with a software power switch and one AC/DC power converter tar supplying DC power source output as long as power is supplied from an AC power source. SOLUTION: A converter 46 generates the DC power signals of +5V, +12V and -12V from supplied AC power and further, the DC power signals are processed by a +5V rise shaping device 36 connected to the converter 46 by a +5V DC power line 54. That is, as long as the AC power source is connected to the AC input, the AC/DC converter 46 continuously generates the DC power signals. A keyboard software ON/OFF switch 60 generates keyboard software ON/OFF signals in the case of being turned to an ON state and the signals indicate the intention of a user for performing changeover between the standby state of the low power consumption of this power system and an operating state for consuming maximum power.
Patent JP-H03185666-A (JP)
Title: Cassette loading device
Inventor: NAKANISHI YASUYUKI
IPC: G11B15/675
Filed: 1989-12-14
Abstract: PURPOSE:To reduce connection members and to miniaturize a cassette loading device by making the stop part of a cassette holder to abut against the locking part of a slide lever so that the cassette holder directly moves the slide lever and executes the turning operation of a turning pressurizing means. CONSTITUTION:A lock part 22 is provided on the end part of a cassette holder 2, and a lock part 36 which abuts against the lock part 22 of the cassette holder 2 is provided at one side of a slide lever 32. While the cassette holder 2 moves from a cassette device position to a cassette insertion position, the lock part 22 abuts against the lock part 36, the cassette holder moves the slider lever 32 directly and makes it execute the turning operation of the turning spring, and the slide lever which receives the pressing force of the turning spring pushes the cassette to the cassette insertion position. Thus, the device can be miniaturized, and the connection members can be reduced.
Patent JP-S63166831-A (JP)
Title: Synergistic treatment
Inventor: JIYATSUKU FUREDORITSUKU WAGUNA
IPC: A61P15/00
Filed: 1987-12-18
Abstract: The concentration of endogenous growth hormone in the bloodstream of an economic mammal is increased by the simultaneous administration of an estrogen and a growth hormone releasing factor.
Patent JP-H03184012-A (JP)
Title: Hologram type optical switch
Inventor: TACHIKURA MASAO
IPC: G02B26/08
Filed: 1989-12-14
Abstract: PURPOSE:To provide a smaller insertion loss, smaller size and larger number of terminals by inserting a hologram element having >=1 pairs of holograms into an optical path. CONSTITUTION:The hologram element 5 is disposed between a single fiber plug 3 and a multifiber plug 13. The hologram element 5 is constituted by simmetrically inserting two hologram medium layers 7, 17 between three sheets of glass plates 8, 18, 28 and forming the plural holograms 6, 16 so as to make pairs respectively on the respective hologram medium layers 7, 17. Collimated beams of light refract merely when the collimated beams of light are made incident diagonally on the single hologram but the deflection effect thereof is offset by the passage through the holograms 6, 16 and the collimated beams of the light are eventually moved parallel. Not so much high positioning accuracy is, therefore, required if the holograms are previously formed sufficiently large to the luminous fluxes. The miniaturization of the device and the increase in the number of the switching terminals are possible in this way.
Patent JP-H03188247-A (JP)
Title: Production of high strength and high conductivity copper alloy excellent in bendability
Inventor: HIRANO YASUO
IPC: H01B1/02
Filed: 1989-12-14
Abstract: PURPOSE:To produce a high strength and high conductivity copper alloy having superior bendability by subjecting a copper alloy with a specific composition to solution treatment at specific temp., to final cold working at a specific draft, and then to ageing treatment at a specific temp. CONSTITUTION:A copper alloy which has a composition consisting of, by weight, 0.4-4.0% Ni, 0.1-1.0% Si, 0.1-3.5% Sn, and the balance Cu with inevitable impurities and satisfying [wt.% Ni]+[wt.% Si]+[wt.% Sn]<5.0 is produced. This copper alloy is subjected, in succession, to final solution treatment at >=700 deg.C for regulating crystalline grain size to 1-10mum, to final cold rolling at <40% draft, and then to ageing treatment at 300-700 deg.C. By this method, this copper alloy can meet the recent demand for the miniaturization of electronic parts and the thinning of material.
Patent JP-H09162298-A (JP)
Title: Semiconductor device
Inventor: IWASE AKIHIRO
IPC: H01L27/02
Filed: 1995-12-12
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device which is capable of expanding the recommended operating conditions of an input voltage. SOLUTION: A lateral PNP transistor 20 is composed of P<+> -type diffusion regions 17 and 18 formed inside an N<-> -type semiconductor region 16. The P<+> - type diffusion region 17 is connected to a ground voltage VSS, the P<+> -type diffusion region 18 is connected to an input terminal 13 through the intermediary of a parasitic resistor R1 , and an N<-> -type semiconductor region 16 is connected to a power supply voltage VPP higher than a power supply voltage VCC. A lateral NPN transistor 26 is composed of N<+> -type diffusion regions 23 and 24 provided inside a P<-> -type semiconductor region 22.  The N<+> -type diffusion region 23 is connected to a ground voltage VSS, the N<+> -type diffusion region 24 is connected to an input terminal 13 through the intermediary of the parasitic resistor R1 , and the P<-> -type semiconductor region 22 is connected to a power supply voltage VBB lower than the ground voltage VSS.
Patent JP-2001138525-A (JP)
Title: Printer
Inventor: YAKURA YUJI
IPC: B41J2/055
Filed: 1999-11-12
Abstract: PROBLEM TO BE SOLVED: To enhance the life of a printer by preventing the deterioration, damage and peeling of the liquid repelling film arranged to the periphery of a nozzle orifice part. SOLUTION: In a printer having a printing head having a pressure chamber into which a medium to be ejected is introduced and the nozzles communicating with the pressure chamber and ejecting the medium to be ejected from the nozzles, the peripheries of at least the nozzle orifice parts on the side of the nozzle orifice surface of the printing head comprise a mixed resin of a polyimide polymer and at least one of a bismaleimide/triazine resin or an epoxy resin.
Patent JP-H05136906-A (JP)
Title: Communication equipment
Inventor: SAKAUCHI TOMOMI
IPC: H04N1/32
Filed: 1991-11-12
Abstract: PURPOSE:To provide the communication equipment able to recognize the end of registration of destination information even when an operation panel is not observed with excellent memory utilizing efficiency. CONSTITUTION:A registration reservation control means 12a registers destination information to a RAM 13 based on a registration reservation command. After destination information is registered in the RAm 13, a registration print control means 12b controls a printer section 18a to print out a report representing the end of registration of destination information. Moreover, an operation management means 12d manages the frequency of use of the said destination information registered in the RAM 13 and a data delete means 12d references the result of management of the said operation management means 12c to delete the destination information in the RAM 13 not used for a prescribed period.
Patent JP-H03186335-A (JP)
Title: Biaxial kneader
Inventor: TAKIMOTO NAOYUKI
IPC: B01F7/02
Filed: 1989-12-15
Abstract: PURPOSE:To easily knead the components different in viscosity by equipping both a mixing chamber housing a rotor and a discharge regulation chamber housing a screw. CONSTITUTION:When a sample is introduced into a mixing chamber 9 via a guide pipe 2, this sample is kneaded by the parallel rotors 5, 6 which are mutually rotated to the reverse direction. While the sample is kneaded, the sample is moved to the lower sides of the central parts of the rotors 5, 6 and this sample is passed through the communication holes 1d, 1e and allowed to fall to a discharge regulation chamber 10 of the lower part and introduced thereinto. Therefor when a screw 7 is reversely rotated at low velocity, the sample introduced into the chamber 10 is pushed by a screw part 7a and returned to the mixing chamber 9 and circulated. After a kneading stage is completed, the sample is introduced into the chamber 10. At this time, the screw 7 is normally rotated and thereby the sample can be taken out from a discharge port 3c. Therefore discharge can be finished in a short time.