baber/WOPTO huggingface dataset:
Patent JP-H07147418-A (JP)
Title: Diode
Inventor: NISHIURA AKIRA
IPC: H01L29/861
Filed: 1993-11-25
Abstract: PURPOSE:To reduce reverse leakage current when a high-speed diode which allows a short reverse recovery time for off-operation and is provided with soft recovery characteristics is turned off. CONSTITUTION:An insulating film 20 is formed on the surface of an n-type semiconductor area 12, a plurality of windows 21 are opened and p-type diode layers 30 are diffused at positions corresponding to the windows 21 on the surface of the semiconductor area 12. An anode terminal surface electrode film 41 is connected only to a diode layer 30 so as to provide insulation from the surface of the semiconductor area 12 by the insulating film 20. Thus, while keeping the excellent soft recovery characteristic which allows no voltage vibration in a short reverse recovery time Tr of the off-operation voltage V and the current I as shown in the figure (b), off-operation current leakage is limited only to the pn junction part between the semiconductor area 12 and the diode layer 30, and the reverse leakage current Ir shown in the figure (d) is remarkably reduced as the characteristic (a) compared with the conventional characteristic (b).
Patent JP-H08227377-A (JP)
Title: Memory controller capable of accessing memory devices of different speeds at different cycles
Inventor: JIEFURII SHII SUTEIIBUNZU
IPC: G06F12/06
Filed: 1995-10-16
Abstract: PROBLEM TO BE SOLVED: To operate memory devices at different speeds in different cycles. SOLUTION: This device is provided with a means for receiving address and cycle timing information, and deciding which bank of a DRAM should be accessed, a means for indicating a DRAM format for each bank, a means for storing plural DRAM timing parameters for the part of 6 DRAM cycle for each DRAM format, and a means for deciding the plural DRAM timing parameters suitable to a received address based on the DRAM format indication and the bank decision for each decided bank. The decided plural DRAM timing parameters are received, and the decided bank and address supplies a column, column address, and address strobe to the DRAM according to the decided plural DRAM timing parameters for the specific bank.
Patent JP-H01134709-A (JP)
Title: Magnetic head and its manufacture
Inventor: OTA HIROYUKI
IPC: G11B5/23
Filed: 1987-11-19
Abstract: PURPOSE:To efficiently equalize a waveform by means of a magnetic head itself by providing an auxiliary gap by means of a conductive film formed in the vicinity of the gap. CONSTITUTION:The title head is equipped with cores 1 and 11 in which a magnetic flux corresponding to a current to flow to a coil flows, a first conductive film 3 formed in the vicinity of a gap 20 of the cores 1 and 11, a magnetic film 4 formed between the gap 20 and first conductive film 3, and a second conductive film 13 to prepare a closed loop with the first conductive film 3 and to be formed so that at least one part of the magnetic flux can pass in the closed loop. When the current is made to flow to the coil wound around the core 1, the magnetic flux prepared by an induced current is circulated between magnetic films 4 and 14 and the cores 1 and 11. The magnetic flux outflows from either of the magnetic films 4 and 14 and the cores 1 and 11, and it inflows the other in jumping on the first conductive film 3. A direction in which the magnetic flux flows is made opposite to the direction of the magnetic flux in the gap. Thus, the waveform can be efficiently equalized by the magnetic head itself.
Patent JP-2000121256-A (JP)
Title: Heat exchanger
Inventor: BYRNE HINDLER
IPC: F28D15/02
Filed: 1998-10-15
Abstract: PROBLEM TO BE SOLVED: To provide a heat exchanger capable of accurately condensing steam requiring no cooling fluid. SOLUTION: This apparatus includes a heat exchanger 6 which has an inflow port 5 for steam and a high temperature drain, a discharge port 8 for a drain as condensed steam and a low temperature drain and an atmospheric air releasing port 6 opened therein and a drain reservoir chamber 3 inside and a heat pipe 2 which has an evaporation part 15 extended into the drain reservoir chamber 3 and a condensing part 16 extended outside the drain reservoir chamber 3. Reevaporated vapor generated from the vapor and the high temperature drain flowing into the drain reservoir chamber 3 from the inflow port 5 is condensed by the heat pipe 2. This enables accurately condensing of vapor requiring no cooling fluid.
Patent JP-H02139802-A (JP)
Title: Solar beam collecting device
Inventor: KONO YASUSHI
IPC: F21V8/00
Filed: 1988-11-21
Abstract: PURPOSE:To provide effective transmission of light by furnishing a ball lens at a light inlet of a light leading means, and irradiating the beam of light collected by a means to collect the solar beam onto a light leading means via the ball lens. CONSTITUTION:Those of the beams irradiated to an opening in an outer case 1 which have a wavelength over 3mum (heat rays) are reflected by a heat ray cut filter 2, while those having shorter wavelength, chiefly visible light, pass the heat ray filter 2 as shown by arrow and are collected by a Fresnel lens 3 to be irradiated on a ball lens 7. There the light is refracted and irradiated onto the end face of optical fiber in the form near parallel beams of light. Then the light is led to the diffuse light end and goes out of the optical fiber 6. The light emitted out of the optical fiber 6 is reflected by a primary reflex shade 10 to be spread, and is further reflected in many directions by a secondary reflex shade 12.
Patent JP-S63146477-A (JP)
Title: Polarization method of piezoelectric element
Inventor: ONISHI MASAO
IPC: H01L41/257
Filed: 1986-12-10
Abstract: PURPOSE:To obtain the polarization method of a piezoelectric element whose polarization strain is small, by bringing simultaneously a plurality of pairs of contact segments having electric potential into contact with each neighbouring electrode from one side of the piezoelectric element, and generating polarization. CONSTITUTION:The shaded portion 1a of a piezoelectric element 1 shows a plurality of electrodes formed on one side, and one electrode 1b is formed on the other side. This piezoelectric element 1 is mounted on an insulating body 3, and contact segments 2 are brought into contact with the element. To the other sides of the electrodes 2 a DC power source 4 is connected, one electrode of which is grounded to polarize the piezoelectric element 1. Thereby, working efficiency can be remarkably increased. Further polarization strain between the respective electrodes can be extremely reduced so that cracks of the element do not generate.
Patent JP-H02140639-A (JP)
Title: Backscattering light measuring instrument
Inventor: TAKADA KAZUMASA
IPC: G01M11/00
Filed: 1988-11-21
Abstract: PURPOSE:To attain measurement of the backscattering light generated in an optical waveguide in a high signal-to-noise ratio by providing an electrostrictive vibrator, an AC oscillator and a lock-in amplifier. CONSTITUTION:The output light of a light source 1 is collimated by a lens 2 and becomes parallel beams, and split into two by a beam splitter 3. One of the split light beams is made incident on an optical waveguide 5 to be measured through a lens 4. The other of the split light beams is brought to total reflection 6 and made incident on the splitter 3 again, and multiplexed with a backscattering light generated in the waveguide 5. This multiplexed light is made incident on a photodetector 8. Subsequently, an electrostrictive vibrator 12 is driven by a sine wave from an AC oscillator 13, and brings the reflecting mirror 6 to minute vibration in the direction of an incident beam. In such a manner, a reflected light of the reflecting mirror 6 is brought to phase modulation. At this time, the output of the detector 8 is derived, a frequency (f) component and a frequency 2f component are detected by lock-in amplifiers 14, 15, respectively, and they are brought to A/D conversion 16, 17 and supplied to a signal processing part 11.
Patent JP-2000121805-A (JP)
Title: Reflection decreasing material for color tone correction and its production
Inventor: MORIMOTO YOSHIHIRO
IPC: G02B1/111
Filed: 1998-10-15
Abstract: PROBLEM TO BE SOLVED: To obtain a reflection decreasing material for correcting the color tone of transmitted light by disposing >=1 layers of colored layers designed to correct the transmitted light between a base material and a reflection decreasing layer or on the side opposite to the deflection decreasing layer. SOLUTION: The reflection decreasing material is formed by disposing the color tone correction layer designed to correct the transmitted light between the base material and the reflection decreasing layer or on the side opposite to the reflection decreasing layer. The reflection decreasing layer is formed by curing a composition consisting essentially of fluorine-contained multifunctional (meth)acrylate. The base material includes, for example, glass, polyethylene terephtalate, etc. Inorganic matter, organic matter or a mixture composed thereof is used as the tone correction layer. Inorganic pigments include, for example, chromate, ferrocyantide compound, metal oxide, etc. Organic pigments include, for example, azo pigments, copper phthalocyanine pigments, quinacridone pigments, etc. The total light transmittance of the tone correction layer is >=10%, further preferably >=30%.
Patent JP-H05131149-A (JP)
Title: Metal carrier for exhaust gas purifying catalyst
Inventor: OGAWA HIROSUMI
IPC: C23C24/08
Filed: 1991-11-11
Abstract: PURPOSE:To obtain a metal carrier excellent in the adhesion of a catalyst coating layer by coating the foil surface of the metal carrier with a porous layer based on alumina fixed by heat treatment at definite temp. CONSTITUTION:A precoat layer 2 is provided to the surface of the foil 1 of a metal carrier. The precoat layer 2 is formed by applying a slurry based on alumina and containing a rare earth element or zirconium if necessary and deflocculated by acid such as nitric acid or hydrochloric acid by a dip coating method or a suction coating method. Thereafter, the metal carrier is heated to temp. from 70 deg.C to the m.p. thereof to form a porous layer wherein the foil 1 and the precoat layer 2 are sufficiently fixed. Finally, a catalyst coating layer 3 is provided to the precoat layer 2. Therefore, the adhesion of the catalyst coating layer and the carrier is enhanced and a long life catalyst generating no peeling is obtained.
Patent JP-H02147190-A (JP)
Title: Method for joining steel plates
Inventor: MIDORI TAKAHIRO
IPC: B23K103/04
Filed: 1988-11-21
Abstract: PURPOSE:To secure the strength permitting the action of a large bending stress by making a suitable number of nearly elliptical holes on a 1st member, bending the 1st member and inserting the projecting piece part of a 2nd member loosely into the holes to join the 1st and the 2nd member. CONSTITUTION:A bracket body 2 is bent nearly in an L shape to have a flange part 5. On the bent part 8 of the bracket body 2 is formed a nearly elliptical hole 10 capable of accommodating an end face 9' of a vertical plate part 9 of a reinforcing member 6 and an end face 6' of the reinforcing member 6. The end face 6' of the reinforcing member 6 is inserted loosely into the hole 10 and the whole end face 9' of the vertical plate part 9 of the reinforcing member 6 can be abutted on the bracket body 2. By this method, though a large load operates on the bracket, enough joining strength can be obtained without decomposing each joined member irrespective of putting a large load on the bracket.
Patent JP-H06145509-A (JP)
Title: Polyamide resin pellet reinforced with long glass fiber
Inventor: MURAKAMI ATSUSHI
IPC: B29B9/14
Filed: 1992-11-02
Abstract: PURPOSE:To obtain the title pellet which, when used in injection molding, is good in evenness of melting time and stably gives moldings having excellent properties. CONSTITUTION:The pellet, 8-13mm long, comprises a polyamide resin and at least 40wt.% glass filaments arranged in parallel and has a Dynstat impact strength of 250kg-cm/cm<2> or higher.
Patent JP-S63147227-A (JP)
Title: Correction system for address information when connecting segmements
Inventor: GOTO ATSUSHI
IPC: G06F9/45
Filed: 1986-12-10
Abstract: PURPOSE:To ensure the normal link for production of a load module with no recompliling job by converting an original style into another one that can express a larger address and then setting the corrected address information to the converted style. CONSTITUTION:When alinker 1 is started, an object module input process means 11 reads the object modules OM1-OMn needed for link out of a memory means 2. A segment connection mode address information correction processing means 13 corrects an address and the segment indication information for the address information that needs correction owing to the connection of segments. In case the address information to be corrected has an old style and the corrected address has the value that cannot be shown in the address information of an old style, the address information is converted into the new one by an address information converting part 132. Then a load module production processing means 14 produces a load module LM out of an input object module.
Patent JP-H04167527-A (JP)
Title: Bump transfer device and its transfer method
Inventor: IMAI SATORU
IPC: H01L21/60
Filed: 1990-10-31
Abstract: PURPOSE:To enable a semiconductor chip to be pressed against a glass substrate while constantly monitoring the bump transfer surface and keeping the parallelism by a method wherein the title bump transfer device is provided with an X table for mounting a bump feeder part and a bump transfer part so as to shift either one of them to the position beneath a substrate holding part. CONSTITUTION:The title bump transfer device is composed of the bump transfer part 7 for pressing a semiconductor chip 2 mounted on a heater block 71 against a glass substrate 1 held by a substrate holder part 5 and of an X table 8 on which a bump feeder part 6 and the bump transfer part 7 are mounted move either one of them to the position beneath the substrate holding part 5. On the other hand, a television camera 9 for monitoring the bump transfer part 7 through an observation window 53 is disposed above the substrate holder 5. Through these procedures, the semiconductor chip 2 can be pressed against the glass substrate 1 while monitoring the bump transfer surface and keeping the parallelism.
Patent JP-H04169735-A (JP)
Title: Air conditioner
Inventor: OGAWA YOSHIAKI
IPC: F24F11/02
Filed: 1990-10-31
Abstract: PURPOSE:To provide an air conditioner in which high pressure is not raised excessively upon starting heating operation by actuating an excess load protective function as early as possible by adding a predetermined value to temperature of an indoor side heat exchanger during a predetermined time from the starting of the heating operation. CONSTITUTION:A refrigerant pressurized by a compressor 1 upon heating operation circulates through a four-way valve 2, an indoor side heat exchanger 3, an expansion valve 4, an outdoor side heat exchanger 5, the four-way valve 2, and the compressor 1 in this order. A main control part 8 comprises a microcomputer and an inverter, etc., and the number of revolutions of the compressor 1 is controlled on the basis of indoor temperature detected by a temperature detection sensor 10 and set temperature set by an operating part 11. The control is done such that the number of revolutions of the compressor 1 is lowered when the temperature of the indoor side heat exchanger 3 detected by a temperature detection sensor 9 exceeds a preset upper limit value. Further, during a predetermined time upon initiation of the heating operation where the rise of the high pressure precedes the temperature of the indoor side heat exchanger is corrected to a value corresponding to the high pressure value to control the number of the revolutions of the compressor. Hereby, an air-conditioner is yielded in which the high pressure does not exceed an allowable value.
Patent JP-H01135632-A (JP)
Title: Manufacture of enameled aluminum panel
Inventor: YAMAMOTO MOTOHARU
IPC: C08F20/28
Filed: 1987-11-20
Abstract: PURPOSE:To permit the manufacture of an enameled aluminum panel, excellent in the flatness of a panel surface and provided with prominent appearance, by a method wherein a smooth hard plate is superposed on the surface of the enameled aluminum panel to employ it as a spacer while the hard plate is removed after curing adhesive agent. CONSTITUTION:An enameled aluminum panel 1 is an aluminum panel, having the external dimension of 1000X1600mm and the thickness of 0.3mm and the surfaces thereof are enameled and coated with enamele layers. A core member (lining member) 2 is constituted of a plywood, having the same external dimension and the thickness of 4mm. A hard plate, consisting of an aluminum-plated steel having the thickness of 0.8mm, is provided with an external dimension slightly larger than the enameled aluminum panel 1 and the flatness thereof is 1/150. 30 sets of superposed materials of the core member 2 and the enameled aluminum panel 1, coated with epoxy resin adhesive agent on the rear surface thereof, are superposed on the fixed board 5 of a press and a movable board 6 is pressed down to maintain a pressurized condition with the surface pressure of 2kg/cm<2> whereby the adhesive agent is cured.
Patent JP-H02141919-A (JP)
Title: Magnetic recording medium
Inventor: SHINOHARA KOICHI
IPC: G11B5/716
Filed: 1988-11-22
Abstract: PURPOSE:To obtain the magnetic recording medium suitable for high-density recording with a narrow gap head by subjecting diagonally vapor deposited films to layer division with a thin film which can be magnetized in the crystal direction. CONSTITUTION:The diagonally vapor deposited films 3, 5 formed on a high- polymer film 1 are subjected to the layer division by the thin film 4 which can be magnetized in the crystal direction. The shapes of the saw tooth-shaped transition regions formed by the magnetization of the diagonally vapor deposited films are offset by the layer division in this way, by which the magnetic fluxes detects as noises are effectively decreased. The layer division is by a ferromagnetic material and contributes to the increase of the magnetic fluxes, unlike a nonmagnetic material and, therefore, the output can be increased. Since the thin films of the layer division play the role of transmission as well for the magnetization over the entire part even with the narrow-gap head magnetic field, the effective magnetization is eventually completed and the high C/N is attained.
Patent JP-S62154686-A (JP)
Title: Optical output stabilization system of semiconductor laser
Inventor: UENO TOSHIAKI
IPC: H01S5/068
Filed: 1985-12-26
Abstract: PURPOSE:To realize high quality and high speed optical communication by keeping constant a detected peak value by a first detecting means depending on temperature change and controlling a bias current and a pulse current in order to make zero the light emitting delay time detected by a second detecting means. CONSTITUTION:If it is assumed that temperature is T and optical output characteristic of a semiconductor laser 1 is A corresponding to such temperature T, since a stabilizing circuit sets the reference value of a first comparator 24 corresponding to a peak value P of optical output, feedback is effectuated to a pulse current regulator 6 so that a peak value of optical output pulse of semiconductor laser 1 becomes P and thereby a pulse current value is kept at IP. Moreover, since the reference value of a second comparator 35 is set to the ground level OV, feedback is effectuated to a variable bias current source 7 so that the light emitting delay time td becomes zero. As a result, a bias current value is kept to IB which is equal to the threshold current Ith of the semiconductor laser 1.
Patent JP-H07302267-A (JP)
Title: Information retrieval device, information retrieval method and knowledge acquisition system
Inventor: NAGAYOSHI TAKESHI
IPC: G06F17/30
Filed: 1994-11-29
Abstract: PURPOSE:To provide an information retrieval device, an information retrieval method and a knowledge acquisition system capable of reducing the troublesomeness of operations required for information retrieval and improving the success rate of the information retrieval. CONSTITUTION:An alternate retrieval condition acquisition means 110 for obtaining alternate retrieval conditions for maximizing an index value for indicating that a retrieval solution set is provided with more data requested by a user and less data not required by the user at the time of retrieving a data base 200 with the alternate retrieval conditions to be candidates and a retrieval means 140 for retrieving the data base 200 again with the alternate retrieval conditions obtained by the alternate retrieval condition acquisition means 110 are provided.
Patent JP-S62153580-A (JP)
Title: Reciprocating compressor
Inventor: HANEDA YASUHISA
IPC: F04B39/00
Filed: 1985-12-26
Abstract: PURPOSE:To remove the lateral load of a piston, by sliding a slider engaged with a crank pin and moving only in the vertical direction, along a slide guide formed in a cylinder surface, and by making the upper and lower surfaces of the slider abut against rollers arranged in a piston coupling section. CONSTITUTION:The upper and lower surfaces of a first slider 35 coupled with a crank pin 33 through a bearing 34 abut against a pair of rollers 34, 34a disposed in a piston coupling section 44. The first slider 35 is adapted to slide along a slide guide 35 arranged on the wall surface of a cylinder 31 through a second slider 36. With this arrangement, since rollers 34, 34a are rotated, a piston center axial component of force transmitted from the crank pin 33 is alone transmitted to the piston coupling section 44, substantially no lateral load is applied to piston 32a, 32a.
Patent JP-H06147750-A (JP)
Title: Air liquefying and separating device
Inventor: MIYAGAWA YUTAKA
IPC: F25J3/04
Filed: 1992-11-04
Abstract: PURPOSE:To make the liquefying and separation of air efficient by separating the mixture of gas and liquid by a gas and liquid separator into vapor rich in nitrogen and condensed liquid rich in oxygen. CONSTITUTION:Vapor, fractionated in a lower pressure tower 1 and supplied to a lower evaporator 31a as a heat source for evaporation after being introduced out of the top of a lower pressure tower 1, becomes the mixture of gas and liquid after being condensed as the result of heat exchange, then, is supplied to a gas and liquid separator 4. The mixture of gas and liquid is separated in the gas and liquid separator 4 into vapor, rich in nitrogen, and condensed liquid, rich in oxygen. The vapor, rich in nitrogen, is supplied to an upper pressure tower 2 whereby the inside of the upper pressure tower 2 becomes a condition rich in nitrogen and nitrogen is taken out from the top of the upper pressure tower 2 as vapor while liquefied air, rich in nitrogen, is taken out of the bottom and is supplied to the upper tower 32 of a low pressure tower 3. According to this method, fractionating operation becomes favourable and efficient liquefying and separating treatment of air can be effected.