baber/WOPTO huggingface dataset:
Patent JP-H0453233-A (JP)
Title: Manufacture of semiconductor device
Inventor: HORIUCHI HIDETAKA
IPC: H01L21/3205
Filed: 1990-06-21
Abstract: PURPOSE:To enable the surface of an interlayer insulating film to be flattened to some extent during the formation process of the interlayer insulating film by a method wherein, immediately after the formation of a metallic wiring layer, a compensation film is formed of a specific material. CONSTITUTION:A non-doped silicon oxide NSG film 2 as an insulating film is formed on the surface of a semiconductor substrate l forming an element region and then an aluminum alloy thin film 3 as a metallic wiring layer is formed. Next, a BPSG (borophosphosilicate glass) film 4 about 2000Angstrom  thick is formed as a compensation film and then resist patterns 5 are formed. Next, the BPSG film 4 and the aluminum alloy film 3 are selectively removed to form the first layer wiring patterns 6. Next, a silicon oxide film 7 as an interlayer insulating film is formed by the normal pressure CVD process to complete the first layer wiring. In such a constitution, the film formation rates during the normal pressure CVD process are decelerated in the order of the aluminum, an NSG film, a PSG film and the BPSG film so that the step difference (a) made by the wiring patterns 6 can be reduced i.e., making lower in comparison with the case when the BPSG film (compensation film) is not formed.
Patent JP-S6222440-A (JP)
Title: Pure water flowing tank for semiconductor wafer
Inventor: MORIMATSU TAKAHIRO
IPC: B08B3/04
Filed: 1985-07-22
Abstract: PURPOSE:To improve the degree of washing of a wafer in a short time by forming a hole for feeding pure wafer to the bottom of a box-shaped water flowing tank proper, an upper section thereof is opened, while forming the uppermost section of a side wall in said water flowing tank proper to a serrated shape and making the thickness of a root section in the serrated section thinner than that of a crest section. CONSTITUTION:The uppermost section of a side wall 11 takes a serrated shape, and consists of crest sections 11a and root sections 11b. Since the thickness of the root sections 11b is made thinner than that of the crest sections 11a in the uppermost section of the side wall 11, foul water is discharged easily outside a tank along inner walls in the root sections 11b, and replaced quickly with novel pure water. Accordingly, the pure water flowing tank for a semiconductor wafer having excellent workability capable of improving the degree of washing of the wafer in a short time can be acquired.
Patent JP-H0451346-A (JP)
Title: Communication managing method in computer
Inventor: KOBAYASHI ATSUSHI
IPC: G06F13/00
Filed: 1990-06-20
Abstract: PURPOSE:To accelerate processing time for the generation/disconnection of a communication pass by providing an unused unuse communication pass table chain at a communication pass table securing and releasing managing part. CONSTITUTION:The communication pass table securing and releasing managing part 7 is located in a communication managing program part 3 which manages the communication pass by using a communication pass table, and when the communication pass is generated, a communication pass generation processing part 4 requests the acquisition of the communication pass table to the communication pass table securing and releasing managing part 7. The communication pass table securing and releasing managing part 7 retrieves the unuse communication pass table chain for the securing request of the communication pass table, and when an unuse communication pass table is chained, the communication pass table is de-chained from the chain, and the communication pass table is offered to the communication pass generation processing part 4 that is the request origin of the acquisition for the communication pass table.
Patent JP-H0327013-A (JP)
Title: Refraction type optical system for video projector
Inventor: YAMAKAWA KAZUO
IPC: G02B13/16
Filed: 1989-06-23
Abstract: PURPOSE:To realize an optical system which withstands the projection of middle and high definition images, possesses high performance and small F value and is bright by constituting the optical system of six slices of lense and satisfying a specific condition. CONSTITUTION:The optical system is constituted so that a first lens L1 which is asperical on one surface and weak in positive refracting power, a second lens L2 of positive refracting power, a third lens L3 of regative refracting power, a both-side projecting fourth lens L4, a fifth lens L5 which is aspherical on one surface and a sixth lens L6 which makes its concave surface face a screen side and of negative refracting power are successively arranged from the screen side. At least the fourth lens L4 is a glass lens. Besides, when it is assumed that (f),(f2),(f3) and (f4) are the focal distance of an overall system, the focal distance of the second lens L2, the focal distance of the third lens L3 and the focal distance of the fourth lens L4 respectively, formula I is made to be satisfied.
Patent JP-S5862317-A (JP)
Title: Suction system of multicylinder internal-combustion engine
Inventor: KIZAKI YOSHIO
IPC: F02M35/108
Filed: 1981-10-08
Abstract: PURPOSE:To simplify the structure of a suction manifold as well as to secure the  stabilization of combustion, by setting up the opening region of each jet port of  a low-load suction passage at an almost backside position of a suction valve, in case of a muticylinder engine equipped with a twin carburetor. CONSTITUTION:A suction system ranging from a twin carburetor 1 to each cylinder is divided into two systems, a low-load suction passage 14 and a couple of high-load suction passages 161 and 162. In addition, the low-load suction passage 14 is ramified to each of cylinders at the inside of a cylinder head 4 or a connecting part. And, an opening region for each suction port of the branched jet ports 111 and 112 are set up at an almost backside position of each suction valves 71 and 72. Since a single low-load suction passage 14 is to be used for every cylinder in common, not only suction manifold 12 can be simplified in structure but the setting space required can be reduced. Likewise, a variation of air-fuel ratio at the low-load and low-speed rotation zone can be lessened and responsiveness to acceleration can be improved.
Patent JP-S5950140-A (JP)
Title: Electrode wire for electric discharge machining
Inventor: MIYAKE YASUHIKO
IPC: C22C9/04
Filed: 1982-09-17
Abstract: PURPOSE:To improve the workability and electric discharge machining characteristics, by adding prescribed percentages of Zn, Be and Cu or by further adding a rare earth element. CONSTITUTION:The titled electrode wire consists of 20-50wt% Zn, 0.2-1wt% Be and the balance Cu or further contains 0.5-1wt% rare earth element. The electric discharge characteristics are improved, the strength at high temp. is easily maintained, and the working is facilitated. When the electrode wire is used, the surface state and dimensional accuracy of the resulting machined product are improved.
Patent JP-H0917004-A (JP)
Title: Optical pickup
Inventor: KOGA TOSHIHIRO
IPC: G11B7/095
Filed: 1995-06-28
Abstract: PURPOSE: To provide an optical pickup with which a good tracking servo signal is obtainable and which is small in size, low in cost and high in productivity. CONSTITUTION: This optical pickup has diffraction gratings 107 which are disposed on the surface of an optical guide member 104 inclined with the optical axis of the incident light emitted from a semiconductor laser chip 103 and splits the incident light beam to three beams; zero order diffracted light beam and ±1st order diffracted light beams. The inter-grating spacing distances of the diffraction gratings 107 are so set that the condensing positions of the three beams formed by divided from the incident light by the diffraction gratings 107 are imaged on the information recording surface of an optical disk.
Patent JP-H05334579-A (JP)
Title: Sensitivity measuring device for fire sensor
Inventor: MORITA SHUNICHI
IPC: G08B17/00
Filed: 1992-05-28
Abstract: PURPOSE:To remove the cause of the erroneous measurement of sensitivity caused by erroneously recognizing the kind of a fire sensor by recognizing the kind of the fire sensor based on the output signal of the fire sensor in a sensitivity measurement device measuring sensitivity by inputting the output signal of the fire sensor. CONSTITUTION:When a trigger detection circuit TD detects a trigger pulse in the output signal of the fire sensor, a timer TM2 is started and if the trigger pulse has a prescribed cycle, a photoelectric type fire sensor is judged to be connected with the sensitivity measuring device. On the other hand, when the trigger pulse is not detected or even when it is detected but has no prescribed cycle, an ionizing type fire sensor is judged to be connected. Then, voltage comparing circuit VC compares the output voltage of the ionizing type fire sensor with a comparing level to judge a first ionizing type fire sensor to be connected when output voltage is not less than the comparing level and a second ionizing type fire sensor to be connected when it is less than the comparing level.
Patent JP-S5864659-A (JP)
Title: Reel shaft driving mechanism of tape player
Inventor: OOHASHI TAMAKI
IPC: G11B15/43
Filed: 1981-10-13
Abstract: PURPOSE:To hold tensile force operating on a tape invariably constant, by automatically obtaining deficient torque according to the wind diameter of a  tape wound around a reel. CONSTITUTION:A voltage control circuit consists of an amplifying circuit 19 which amplifies an electric signal from a magnetic sensor 18 and an F/V converter 20 which converts the signal frequency of it into a voltage. When the magnetic braking force of an electromagnet 15 to a braking rotating disk 11 is constant, takeup torque becomes deficient according to an increase in the wind diameter of a tape, and a reel shaft 3, i.e. a reel turntable 5 decreases in speed corresponding to the deficiency. Therefore, the rotating disk 16 also decreases in speed, so the output of the F/V converter 20 increases in proportion to increase the braking force of the electromagnet 15 to the braking rotating disk 11. Then, the transmitted force between the 1st body A of revolution and 2nd body B of revolution increases to obtain takeup torque suitable for the wind diameter of the tape.
Patent JP-S649821-A (JP)
Title: Sooty silica material and production thereof
Inventor: SHINOMIYA HIDEKAZU
IPC: C03B8/04
Filed: 1987-07-01
Abstract: PURPOSE:To readily obtain a sooty silica material useful as large-sized soot material free from cracking, etc., by successively depositing specific fine particles on a rotating heat-resistant substrate while changing heat energy per unit time along the radius direction of the substrate. CONSTITUTION:Each burner 1a of oxyhydrogen flame is arranged on a burner stand 11 to form a burner line 1. Then SiCl4, etc., together with a carrier gas is sent to flames 4 of each burner 1a and hydrolyzed to give sooty Si fine particles 3a. Then a heat-resistant substrate 2 is rotated around an axis thereof, reciprocated at a given amplitude in the length direction and fine particles 3a are deposited on the substrate 2 to form a soot material 3. Then the quantity of heat energy (flames 4) per unit time is controlled by a feed source 61 for H2 to be sent to the burners 1a, flow rate control valve 64, etc., and the fine particles are deposited in such a way that the deposition density of the fine particles 3a has the minimum displacement point positioned in an intermediate zone sandwiched between to the site of outer surface of the soot material 3 and the inner site in contact with the substrate 2 to form a sooty silica material.
Patent JP-H0325923-A (JP)
Title: Production device for semiconductor
Inventor: ONO NORIO
IPC: H01L21/31
Filed: 1989-06-22
Abstract: PURPOSE:To wash a CVD film adhering on the inner wall of the reaction tube of a decompression CVD device without dismantling a flange and the reaction tube by adding the lines of chemicals and the drain system of pure water to the exhaust system line of a gas and adding the feed lines of chemicals and pure water to an inserting flange on the gas introducing port side. CONSTITUTION:A power supply for a heater 1 is turned OFF, lowering to room temperature of the ambient temperature of a reaction tube 2 is waited, chemicals required for washing are introduced into the reaction tube 2 from a chemical feed system 11 under the state in which the feed valve 10 of a gas line is closed and the main valve 13 of an exhaust system is also closed, and the inside of the reaction tube 2 is filled with chemicals. The inside of the reaction tube is dipped in chemicals for a fixed time, the main valve 13 is opened, and chemicals are discarded to a drainage line 14. The kind of chemicals, the dipping time, the number of the exchange of chemicals, etc., are changed in response to the kind and thickness of a CVD film in the reaction tube 2. When washing by chemicals is completed, pure water is fed by the same method, and intermittent washing or pour-washing by pure water is conducted. Lastly, a chemical feed valve 12 is closed, and nitrogen gas is supplied from the gas line and the CVD film is dried.
Patent JP-H09313837-A (JP)
Title: Filter and its production
Inventor: MATSUMOTO KAZUHISA
IPC: B01D39/00
Filed: 1996-06-03
Abstract: PROBLEM TO BE SOLVED: To obtain such a filter that can improve the trapping efficiency for fine dust which is required for a system such as a complex power generating system using coal and that can decrease the dust density at the exit of a dust- collecting system to <=10mg/m<3> N. SOLUTION: A fiber formed body consisting of one or more kinds of fibers selected from silicon carbide, silicon nitride, alumlna, alumina-silica and carbon consists of a first fiber layer as the dust collecting side prepared by aggregating single fibers into a nonwoven fabric, and a second layer comprising a woven fabric of fibers or a aggregated layer of chopped yarns laminated to the back side of the first fiber layer. A coating layer of one or more kinds selected from silicon carbide, silicon nitride, alumina and carbon is formed by gas phase vapor deposition on the fiber surface of the fiber formed body. A whisker aggregated layer comprising one or more kinds selected from silicon carbide, silicon nitride, alumlna, carbon and graphite is formed on the dust collecting side of the surface layer.  A coating layer comprising one or more kinds selected from silicon carbide, silicon nitride and alumlna is formed by gas phase vapor deposition on the surface of the whiskers of the whisker aggregated layer.
Patent JP-H06322369-A (JP)
Title: Supertwist liquid crystal display
Inventor: HERUBERUTO PURAHA
IPC: C09K19/42
Filed: 1991-06-07
Abstract: PURPOSE: To provide the subject display having a short switching time, a wide drive temperature range and excellent angle dependence, which display is a specified supertwist liquid crystal display containing a specified nematic liquid crystal mixture having a positive dielectric anisotropy.  
     CONSTITUTION: This display is a supertwist liquid crystal display having two plane-parallel supporting plates constituting a cell by edgings, a nematic liquid crystal mixture having a positive dielectric anisotropy contained in the cell, each alignment-layer-mounted electrode layer inside each supporting plate, having an incident angle between each support and the longer axis of the molecules on the surface of this support and a twist angle from the alignment layer of the liquid crystal mixture in the cell to the alignment layer and lying between 160 to 270 degrees according to the amount, wherein the nematic liquid crystal liquid mixture contains at least one compound of formula I (wherein L is H or F; R 1  is a 1-12C alkyl; and A 1  is 1,4-phenylene or the like) and/or at least one compound of formula II (wherein S is 0-2; and A 2  is A 1 ) and/or at least one compound of formula III. 
     COPYRIGHT: (C)1994,JPO
Patent JP-S648425-A (JP)
Title: Control method for keyboard input
Inventor: NAGAI MAMORU
IPC: G06F3/023
Filed: 1987-07-01
Abstract: PURPOSE:To remove the detecting deviation of key switch inputs and to correctly decide simultaneously inputted key switches by always detecting the key switch inputs at a fixed period and storing the inputs in a memory whose contents are successively shifted. CONSTITUTION:The states of inputted key switches are always checked by a key switch detecting means 51 at the fixed period and the states of read key switches are successively shifted and stored in a key switch information storing means 54. When information indicating the OFF states of all the key switches is inputted from a detecting means 51, a simultaneous input determining means 52 is driven and stores the states of determined simultaneous inputs in an input state storing means 55. A main control part 53 checks the contents of the storing means 55 and executes processing corresponding to input information.
Patent JP-H04361366-A (JP)
Title: Supervisory system for arrival time of vehicle
Inventor: CHIKADA NOBUYUKI
IPC: G06Q50/30
Filed: 1991-06-07
Abstract: PURPOSE:To provide the arrival time system which can estimate the scheduled arrival time of a vehicle. CONSTITUTION:Three vehicles A-C are existent in plural areas divided like the checkers. In such a state, the scheduled arrival time from each vehicle to all the areas is calculated with the vehicle side (departure area) as a reference first of all. Next, the scheduled arrival time of the vehicle to first arrive at the area is calculated with each area as a reference. Concretely, assuming that attention is paid upon an area 1-I, time TA-TC calculated by adding departure enable time alphaA-alphaC of the respective vehicles to moving time tA-tC of the three vehicles calculated in this process is sorted, the earliest time is defined as the scheduled arrival time for the area 1-I, the scheduled arrival time is similarly calculated for each following area, and the respective results are stored in a memory. Then, by displaying each time through a display device or the like, it is possible to immediately answer the inquiry of the arrival time.
Patent JP-H1110189-A (JP)
Title: Aeration apparatus for dam lake
Inventor: MIYAKE SEISHIROU
IPC: C02F3/20
Filed: 1997-06-19
Abstract: PROBLEM TO BE SOLVED: To surely purify dam lake water by feeding air all over a surface of a dam lake with a simple constitution. SOLUTION: A dam lake aeration apparatus 1, which purifies dam lake water retained in a closed state, is provided with a dam lake water suction conduit 2 having one end connected with a headrace and another end disposed in underwater of a dam lake, an air suction pipe 3 having a base end connected to an intermediate part of the dam lake water suction conduit 2 and a distal end exposed above a water surface, an air retainer part 4 provided at an intermediate part of the dam water suction conduit 2 in a bottom part of the dam lake for retaining air sucked from the air suction pipe 3 and a reliese valve 5 for releasing air into the dam lake water when the air is retained in the air retainer part 4.
Patent JP-H066722-A (JP)
Title: Image display device
Inventor: ITO KOJI
IPC: H04N7/00
Filed: 1992-06-22
Abstract: PURPOSE:To improve brightness on the center part of a screen so as to easily observe an image on the screen by reducing the scanning speed of scanning lines on the center of the screen and increasing it on both the ends to receive a high-vision signal. CONSTITUTION:When an image signal converted into a digital signal and extracted is inputted, a writing clock signal (Wck) and a reading clock signal (Rck) are inputted from a control part 3 for controlling a line memory 2 for storing the horizontal scanning lines of a video signal to the line memory 2. On the left and right ends of the horizontal scanning lines, the frequency of reading clock signal is increased several times the frequency of the writing clock signal and the video signal is compressed and outputted from a video signal output 4, and on the center of the horizontal scanning lines, the frequency of the writing clock signal is increased several times that of the reading clock signal and the video signal is extended and outputted. Thus the scanning speed of the screen is delayed on the center part of the screen as compared with the horizontal peripheral part.
Patent JP-H1012988-A (JP)
Title: Circuit board
Inventor: IWAMOTO HIROSHI
IPC: H05K1/11
Filed: 1996-06-24
Abstract: PROBLEM TO BE SOLVED: To make any processes for performing the borings, platings and solder-fillings of through holes after laminating wiring circuits on both surfaces of an insulation board unnecessary, by punching two metallic plates to form the circuit boards having required wiring circuits and holes, and by interposing an insulation board between the two metallic circuit boards having the wiring circuits and cylindrical protruding portions, and further, by fitting the protruding portions into the holes to integrate the metallic and insulation boards with each other. SOLUTION: In metallic plates 1A, 1B, wiring circuits are machined by punching and pressing, etc. To taking electric continuities between the two wiring circuits when disposing the metallic plates 1A, 1B on both surfaces of an insulation board 2. both through holes 3A, 3B and cylindrical protruding portions 4A, 4B formed respectively in the peripheries of the through holes 3A, 3B are machined by drawing in the pressing processes. Then, into the hole 3A of the protruding portion 4A, the other protruding portion 4B is fitted. The metallic plates 1A, 1B are so buried in the insulation board 2 that the heights of their surfaces are made equal respectively to the heights of the front and rear surfaces of the insulation board 2.  Thereby, any processes for performing the borings, platings and solder-fillings of through holes after laminating wiring circuits on both the surfaces of an insulation board can be made unnecessary.
Patent JP-H1110804-A (JP)
Title: Manufacture of acrylic resin-based laminated plate
Inventor: HARADA HISASHI
IPC: B29C33/42
Filed: 1997-06-19
Abstract: PROBLEM TO BE SOLVED: To provide a method to manufacture a laminated plate in a short period of time, by which the work environment is not deteriorated by an odor of MMA at the time of working, and also, air bubbles are not included, and a sheet-form article having a pattern does not slip. SOLUTION: This method is for the manufacture of a laminated plate of a structure wherein a sheet-form article having a pattern is pinched between two sheets of acrylic resin plates, and a film having a major component of an acrylic resin of which the glass transition temperature is lower than that of the acrylic resin plate, is arranged on at least one surface side of the sheet- form article having pattern, and then, under a state wherein acrylic resin plates are arranged on both sides of them, the film and the acrylic resin plates are heated and molten, and at the same time, the whole body is integrated by pressing from both sides of the acrylic resin plates. In this case, they are heated, molten and pressed in a die having an uneven shape.
Patent JP-H0721817-A (JP)
Title: Lighting device, back light and liquid crystal display device
Inventor: ISHIWATARI TOMISHIGE
IPC: G02F1/13
Filed: 1993-06-30
Abstract: PURPOSE:To heighten productivity by improving manufacturing workability as well as to heighten brightness by reducing leakage light. CONSTITUTION:A reflecting case 17 is fitted around the outside surface of a light conductor 12. The reflecting case 17 is formed integrally of the bottom part 17a to cover the outside bottom surface 12b of the light conductor 12 and side walls 17b, 17c and 17d to cover the outside surface of the light conductor 12 by a reflecting sheet or the like. A pressure sensitive adhesive material 18 is applied to the respective side walls 17b, 17c and 17d.