baber/WOPTO huggingface dataset:
Patent JP-S5788267-A (JP)
Title: Ignition device for multi-cylinder internal combustion engine
Inventor: ITOU TOSHIHIKO
IPC: F02P3/04
Filed: 1980-11-25
Abstract: PURPOSE:To reduce the size of a distributor for a multi-cylinder internal combustion engine, by arranging side electrodes along a large and a small pitch circles in a distributor cap, and exposing those side electrodes disposed along the small pitch circle in a recess formed in a rotor concentrically with the same. CONSTITUTION:In case that a distributor is designed for use, for instance, in a six-cylinder engine, one center electrode 2 and six side electrodes 3-8 are provided in a cap 102 in the manner that side electrode 3, 5, 7 are arranged with small pitches while side electrodes 4, 6, 8 are arranged with large pitches. These side electrodes 3-8 are molded in the cap 102 in the manner that they are exposed on both sides of the cap 102. The portions of the side electrodes exposed on the inside of the cap 102 come into contact with brushes 10, 11 of a rotor 9 periodically, and the side electrodes 3, 5, 7 having smaller pitches are projected into a recess 16 formed in the rotor 9 more deeply than the other side electrodes 4, 6, 8. Therefore, it is made unnecessary to separate the side electrodes and a metal body so much from each other, so that the height of the cap can be decreased.
Patent JP-H0331330-A (JP)
Title: Production of polymer film
Inventor: KIMURA TOSHIYUKI
IPC: C08J5/18
Filed: 1989-06-27
Abstract: PURPOSE:To obtain a polymer film, useful as an insulating film, moistureproof film, etc., for electronic parts in semiconductor devices, etc., and composed of a specific polymaleimide polymer excellent in strength by evaporating the aforementioned polymaleimide in a vacuum and forming a vacuum deposition film. CONSTITUTION:The objective polymer film, obtained by heating a polymaleimide, having at least 3 benzene rings and >=2 maleimide structures expressed by formula I [a compound expressed by formula II (X is O, SO2, etc.; benzene ring may be substituted with halogen, alkyl, etc.; k is >=1) is prefer ably used alone] under, e.g. 1X10<-2> to 1X10<-4>Torr pressure (at 100-200 deg.C for 30-60min), evaporating and polymerizing the polymaleimide and depositing the polymer on a substrate, such as glass or stainless steel, in a vacuum.
Patent JP-H062048-A (JP)
Title: Method for controlling velocity of continuous treating line
Inventor: HASEGAWA AKIHIKO
IPC: C21D9/56
Filed: 1992-06-23
Abstract: PURPOSE:To improve the productivity by automatically setting at all times, the max. line velocity capable of executing continuous treatment so as to make max. use of the capacity in each equipment. CONSTITUTION:Based on a preset calculating expression in each equipment and the specification of each objective material to be treated, an upper limit treating velocity (V1-V3) in each equipment to each objective material and the position applied to this velocity are obtd. These data, an inlet side upper limit treating velocity (Vin) according to the handling time at the inlet side of the line and an outlet side upper limit treating velocity (Vout) according to the handling time at the outlet side of the line are used as the reference. Among them, the min. velocity is used to a velocity aimed value applied at each position and the velocity schedule is prepared. The actual position of each objective material is tracked, and based on the detected position and the velocity schedule, a velocity aimed value of the line at this time is decided.
Patent JP-H02256628-A (JP)
Title: Method for desulfurizing methylnaphthalene-containing oil
Inventor: SATO NOBUYUKI
IPC: C07C15/24
Filed: 1989-06-27
Abstract: PURPOSE:To remove organosulfur compounds with a sufficient desulfurization ratio and high recovery ratio of the objective compound by treating a methylnaphthalene-containing oil with a small amount of sulfuric acid, then removing the unreacted sulfuric acid at least once and treating the resultant reaction mixture with formaldehyde. CONSTITUTION:Methylnaphthalene or 2-methylnaphthalene-containing oil or both are treated with a small amount oil sulfuric acid and a step for removing the unreacted sulfuric acid is carried out at least once, preferably twice or more, especially three times or more. The reaction mixture is then treated with formaldehyde. Thereby, desulfurization of the methylnaphthalene-containing oil is carried out. The formation of resinous substances causing industrial problems can be prevented by the above-mentioned desulfurization method. Since both the desulfurization ratio and recovery ratio of the desulfurized methylnaphthalene are high, the aforementioned method is industrially advantageous. The small amount of the sulfuric acid is sufficient and cost of waste acid treatment, etc., can be reduced to provide the economical method.
Patent JP-S5588342-A (JP)
Title: Power semiconductor element
Inventor: ARUFUREETO IESUTAA
IPC: H01L23/48
Filed: 1979-12-20
Abstract: On the two main surfaces of a semiconductor disc of a large diameter, high-performance semiconductor component, there are soldered one bundle each of metal wires. The other ends of the metal wires are soldered to heat dissipating discs. The metal wires, with increasing distance from the center, are of increasing lengths in order to absorb the differences in the thermal expansion of the semiconductor disc and the heat dissipating discs. Metal ring portions and a ceramic housing complete the semiconductorcomponent. A secure and desirable contact of the semiconductor discs is achieved without the application of pressure.
Patent JP-2000350883-A (JP)
Title: Washing machine
Inventor: FUJII HIROYUKI
IPC: D06F17/02
Filed: 1999-06-11
Abstract: PROBLEM TO BE SOLVED: To suppress foaming by finely controlling amount of spray of washing water in a washing stroke with a washing machine which minimizes the damage and entanglement of wash and efficiently removes dirt by the effective action of the washing water and to add a press washing effect to the wash by changing the centrifugal force acting on the wash so as to improve washing performance. SOLUTION: The water is fed by a water feed valve 9 into a washing/ dehydrating tank 2 freely rotatably disposed in an outer tank 1 and the washing/ dehydrating tank 2 is driven by a motor 5. The operations of the water feed valve 9, the motor 5, etc., are controlled by a control means, by which the stroke is controlled. The control means has the stroke of carrying out washing by rotating the washing/dehydrating tank 2 by the motor 5 to spray the washing water into the washing/dehydrating tank 2 from between the outer tank 1 and the washing/dehydrating tank 2 after the prescribed volume of the water is fed into the washing/dehydrating tank 2 by the water feed valve 9 and changes the number of revolutions of the washing/dehydrating tank 2 in this stroke with the number of revolutions of spraying the washing water and the number of revolutions of not spraying the washing water.
Patent JP-H0216445-A (JP)
Title: Dust concentration detecting device and air cleaner equipped with same
Inventor: KAJIMAKI MASAO
IPC: G01N27/60
Filed: 1988-07-04
Abstract: PURPOSE:To accurately detect dust concentration from the difference between the current when a fan is turned on and the current when is turned off by performing ON-OFF control over the fan which guides an air flow to a discharging electrode of ionization and a dust collecting electrode. CONSTITUTION:The dust collecting electrode 3 and the suction fan 4 which is driven by a motor 5 are arranged on the downstream side of the electrode 2 for ionization provided in a passage 1 of dust containing gas. Contaminating particles 10 which flow in while the discharging electrode 2 for ionization and dust collecting electrode 3 are applied with the high voltage from a high voltage power source 6 are charged electrostatically by corona discharge from the discharging electrode 2 for ionization and collected on a dust collection surface 3a, so that a current i1 is generated by the circuit of the dust collecting electrode 3. The motor 5 for the fan is turned on and off by a switch 9 to detect the current i1 when the fan is turned on and the current i0 generated by the circuit of the dust collecting electrode 3 when the fan is turned off, and the current difference is corrected as a current value proportional to the dust concentration, which is detected.
Patent JP-S6410577-A (JP)
Title: Liquid chamber space of alkaline type fuel battery
Inventor: KONDO KO
IPC: H01M8/02
Filed: 1987-07-01
Abstract: PURPOSE:To equalize pressure and provide an electrolyte passage and gas bubble passage without any throat part by making three-dimensionally a meshed liquid chamber spacer in the form square corrugation. CONSTITUTION:At a liquid chamber spacer 30, longitudinal grooves 31 as passage for electrolyte are formed, which consist of a plurality of channel-shaped grooves 31A with a width W formed at one of the sides of a plate with a uniform thickness t and similar grooves 31B formed at the other side of the plate, which thus is given a form of square corrugation. Each transverse groove intersecting these longitudinal grooves 31 is formed from grooves 32A, 32B, whose depth is smaller than of the longitudinal groove 31 and larger than the thickness of the bottom thereof. Thereby a through hole 33A in communication with the grooves 31B is formed in the part where the groove 32A intersects the grooves 31B at their bottoms, and another through hole through hole 33B is formed in the same manner, to form in the whole a passage for ion stream consisting of through holes distributed in the form of mesh.
Patent JP-H1062650-A (JP)
Title: Optical fiber connector provided with fiber holding means
Inventor: GROIS IGOR
IPC: G02B6/36
Filed: 1997-06-06
Abstract: PROBLEM TO BE SOLVED: To provide an improved optical fiber connector provided with a mechanical holding means for holding an optical fiber to the optical fiber connector. SOLUTION: An optical fiber connector 10 has an optical axis 22, and is provided with a housing 12 for fitting a ferrule 16 that is projected forward. Through both the housing 12 and the ferrule 16 in which an optical fiber cable 28 is terminated, holes 26, 32 are extended in the axial direction, and the exposed optical fiber 30 is inserted into the hole 32. A holding means 38 loaded with a spring is fitted to the housing 12 so that the optical fiber 30 can be received and held when the optical fiber 30 is inserted into the ferrule 16. The holding means 38 can be moved between the normally closed position for holding the optical fiber 30 and the open position for receiving the optical fiber 30. By using a proper tool 52 (not shown), the holding means 38 is moved to the open position.
Patent JP-S5591871-A (JP)
Title: Manufacture of semiconductor device
Inventor: NOZAKI TADATOSHI
IPC: H01L29/423
Filed: 1978-12-29
Abstract: PURPOSE: To prevent variation in the threshold voltage due to the presence of mobile ions by forming a phosphate glass layer covering a molybdenum layer and by heat treating this.  
     CONSTITUTION: A thin molybdenum film is made into gate electrode 10, and silicon oxide film 12 is used as an interlayer insulating film. Silicon oxide film 12 contains a phosphate glass layer containing less than 10mol% of P 2 O 5 . After forming silicon oxide film 12, heat treatment is operated at 800∼1000°C. Thus, it is possible to prevent variation in the threshold voltage due to the presence of mobile ions and insure stability for BT processing in the same way as the polycrystalline silicon transistor. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5954962-A (JP)
Title: Multilayer assay material
Inventor: ARAI FUMITADA
IPC: G01N33/92
Filed: 1982-09-22
Abstract: PURPOSE:To achieve a high sensitivity and a high accuracy of assay by maintaining the inclination of a calibration curve even in a high density area of a component to be inspected to expand the measuring range. CONSTITUTION:This multilayer assay material has at least two layers of a reagent layer which contains a color indicator composition for detection of hydrogen peroxide containing the combination of at least a color source body capable of causing a detectable change under the presence of peroxide and peroxide and hydrogen peroxide and a coupler such as phenol and a porous developing layer on a thin non-water permeable and light transmitting support made of a polymer. In a laminate made in that order, the feature is the use of a 1, 2, 3-tri substituent of 4-amino-3-pyrazoline-5-one less in the solubility to water at 25 deg.C than 4-aminoantipyrine. This produces a multilayer assay material which has a large inclination of the calibration curve even in a high density area of a component to be inspected and is excellent in the accuracy of assay with a high sensitivity while enabling a quick measurement.
Patent JP-H0334139-A (JP)
Title: Magneto-optical recording medium and recording method
Inventor: ONISHI ATSUSHI
IPC: G11B11/105
Filed: 1989-06-29
Abstract: PURPOSE:To allow sure overwriting by superposing an n type ferrimagnetic film on a magnetic recording film and transferring the inverted magnetic field generated in the n type ferrimagnetic film to the magnetic recording film. CONSTITUTION:The recording film 3 is heated to the temp. Tc2 above the Curie point temp. Tc1 by the laser beam 6 of a relatively small laser power and is magnetized in conformity with the external magnetic field by a permanent magnet 7. The magnetic film 4 which is n type ferrimagnetic film is increased to the temp. Tc3 between Qc and Qf to generate a diamagnetic field by irradiating the same pits with the laser beam of the relatively large power. Since the recording film 3 is naturally at the temp. above the Curie point temp. Tc1, the coercive force Hc is small and the magnetic field generated by the magnetic film 4 inverts from the external magnetic field by complying with the diamagnetic field reverse from the external magnetic field by the permanent magnet 7, by which the recording film 3 is inverted and magnetized. Namely, the mangetization direction to the recording film is inverted only with, for example, the magnet 7 by the DC magnetization without inverting the external magnetic field, by which the power of the laser beam is modulated and the overwriting executed.
Patent JP-S5593746-A (JP)
Title: Sheet feeder
Inventor: YANAGAWA NOBUYUKI
IPC: B65H3/06
Filed: 1978-12-29
Abstract: PURPOSE: To enable separate transfer without yielding skew by setting up a corner separator at one corner, a feed roller at the other corner, and a press body which presses the surface of a sheet at the rear of the roller.  
     CONSTITUTION: Since the roller is put on the surface of a sheet due to light weight, it rotates after the sheet is fed. The turning moment M 1  occurring at the uppermost sheet S 1  is offset by this turning effort and the pressing actuation onto the sheet. Consequently, the rear end of the right edge of the sheet is hard to float and the sheet is conveyed in parallel to the feed direction. The tip of the sheet is smoothly separated by means of the single corner separator 11 using its buckling force. As a result, even when a few errors occur against the sheet width, separate feed is accurately enabled without yielding any skew. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H0832516-A (JP)
Title: Optical transmission and reception circuit
Inventor: KIMURA HIDEAKI
IPC: H04B10/2507
Filed: 1994-07-18
Abstract: PURPOSE:To improve the transmission efficiency by separating a semiconductor laser and an amplifier circuit at transmission so as to eliminate the need for a switch connected at reception and connecting a transmission reception changeover control circuit between both terminals of the semiconductor laser at reception so as to decrease a time till a reception time is made stable. CONSTITUTION:When a semuconductor laser 12 outputs an optical signal in response to a transmission signal in the case of transmission, a gate circuit 41 interrupts an output of a comparator circuit 24 to fix an output of a level fluctuation circuit 25 to a low level even when an output voltage of a preamplifier 22 is fluctuated. On the other hand, in the case of reception, a switch 11 is open and a switch 26 is closed to set the reception mode. A reference voltage Vref is applied to the semiconductor laser 12 via the switch 26, which acts like a light receiving element. Then a transmission reception changeover control circuit is connected between terminals of the semiconductor laser 12 to discharge an undesired charge in the semiconductor laser 12 and then the reception is entered thereby reducing the time till the reception is made stable.
Patent JP-S6411473-A (JP)
Title: Original reader
Inventor: YOSHIDA YOSHIKI
IPC: H04N1/401
Filed: 1987-07-03
Abstract: PURPOSE:To eliminate an abnormal picture due to the dust or the flaw of a white reference plate by providing a storing means and a means for controlling a data transfer from the storing means to a CPU and rereading the white reference of a different position at the time of having an abnormality after the white reference is read. CONSTITUTION:In a comparing and deciding mode next to a reference reading mode, the address of a RAM 26 is set according to an address count CA to compare data from the RAM 26 with a threshold. When it is lower than threshold, it is judged to be normal and when all range is normal, it is shifted to a picture reading mode. If there is a value higher than the threshold in one dot throughout all the range, the white reference is reread. When a sensor reading position does not exceed a white reference range, FSHD is reset to read the white reference and compare and decide again. When it exceeds the white reference range, a travel body is returned to a home position to change the reading timing of the FSHD and read the white reference of the different line. In such a way, the abnormal picture due to the stain or the flaw of the white reference plate can be eliminated.
Patent JP-S6057632-A (JP)
Title: Manufacture of semiconductor device
Inventor: IHARA MASAHIRO
IPC: H01L21/28
Filed: 1983-09-08
Abstract: PURPOSE:To form an electrode layer positively and easily through a lift-off by exposing and treating a negative type photo-resist film in a photosensitizing region within a range of the amount of light in which a section not photosensitized remains. CONSTITUTION:A crosslinking type negative photo-resist film 5 is formed on a semiconductor substrate, a surface section thereof has a Si dioxide film 4. The film 5 is exposed and treated while interposing a photo-mask 6. The surface side of the film 5 is photosensitized under conditions in which the amount of the film 5 exposed is reduced, and photosensitizing is regulated so that a section not photosensitized remains in the bottom layer of the film 5. Consequently, photosensitized degenerated sections take inverted trapezoids in sections in the film 5, and an overhang-shaped photo-resist film pattern is formed after development treatment. The film 4 is etched while using the film 5 as a mask to shape openings for electrode contacts Al films 7 as electrode layers are formed. The electrode layers by the films 7 are formed on the semiconductor substrate by peeling the film 5.
Patent JP-H0719210-A (JP)
Title: Woodruff key
Inventor: HARA KIYOSHI
IPC: F16B3/00
Filed: 1993-07-05
Abstract: PURPOSE:To provide a woodruff key that is able to prevent any fallout and dislocation from a key seat and, what is more, ease of machining and setting work. CONSTITUTION:A woodruff key 2 consists of a key body 2a made up into semicircular form and a pair of projections 2b installed projectingly in a direction extending a ridgeline equivalent to a semicircualr chord in this key body 2a. In addition, this projection 2b is formed in a part being projected out of a key seat 6 when the woodruff key 2 is inserted into this key seat 6 formed in a turning shaft 4. In this Woodruff key 2 constituted like this, when it is attached to the turning shaft 4, the paired projections 2b cane into contact with a wall surface 4a of the turning shaft 4, preventing any rotation of the Woodruff ket 2 from occurring. Therefore, when a rotary component is attached to the turning shaft 4, even if this component contacts with the l woodruff ket 2 which will in no case cause any dislocation and drop from the key seat 6 at all.
Patent JP-2000001551-A (JP)
Title: Polymer film
Inventor: ONO AKIHIRO
IPC: C08G18/42
Filed: 1998-06-12
Abstract: PROBLEM TO BE SOLVED: To provide a novel biodegradable polymer film. SOLUTION: This film is prepared by molding a polymer mixture mainly consisting of a polymer of a polyesterdiol having repeating structural units represented by the formula (wherein R is a 2-12C hydrocarbon group; and n is an integer of 2 or greater) and 2,5- and/or 2,6- diisocyanatomethylbicyclo[2.2.1]heptane. It is desirable that the molecular weight of the polyesterdiol having repeating units represented by the formula is 50,000 or above.
Patent JP-S5688781-A (JP)
Title: Preparation of fish-paste product
Inventor: OZATO KATSUO
IPC: A23L17/00
Filed: 1979-12-21
Abstract: PURPOSE: To prepare a fish-paste product having improved shelf stability, elasticity, and good taste with its smell of fish removed, by blending a raw material for fish paste with an extracted solution of Chlorella, followed by molding and coagulation.  
     CONSTITUTION: In preparing a fish-paste product, e.g., kamaboco (boiled fish paste), chikuwa, hanpen (both kinds of fish paste), etc., not less than 0.1wt%, preferably about 0.3wt% extracted solution of Chlorella is added to the raw material of the fish-paste product in any process before molding and coagulation. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H11346778-A (JP)
Title: Production of 'nucleic acid'-based substance
Inventor: SATO KATSUAKI
IPC: C07K14/32
Filed: 1998-06-12
Abstract: PROBLEM TO BE SOLVED: To obtain a nucleic acid-based substance industrially useful as a raw material, for seasonings or the like by culturing a microorganism in which a repressor protein of purine operon does not work normally in a medium, producing and accumulating a nucleic acid-based substance in the medium, followed by recovering the substance. SOLUTION: This method comprises the steps of (1) culturing a microorganism, in a medium, such as bacillus in which a gene coding for a repressor protein of purine operon on the chromosome is destroyed and as a result a repressor protein of purine operon does not work normally, (2) producing and accumulating a nucleic acid-based substance such as hypoxanthine, uracil, guanine, and adenine, in the medium, and (3) recovering the substance from the medium. By this method, the objective nucleic acid-based substance industrially useful as a raw material for seasonings or the like is obtained in a high yield and more advantageously than conventional.
Patent JP-H0513521-A (JP)
Title: Semiconductor chip tester
Inventor: MIZUMURA TSUTOMU
IPC: G01R1/073
Filed: 1991-07-05
Abstract: PURPOSE:To easily align the probe needles of a probe card with a wafer by electrically connecting a test head with a coupling member at a locking position so as to electrically connect the probe needles to a tester. CONSTITUTION:A test head 52 is electrically connected to a connecting member 70 by actuating a locking mechanism 60 so as to electrically connect the probe needles 74A, 74A,... of a probe card 74 to the test head 52. Since a tester is electrically connected to the head 52, the needles 74A, 74A,... are electrically connected to the tester. Under such condition, the propriety of a semiconductor chip is inspected by bringing the needles 74A, 74A,... of the card 74 into contact with the electrodes of the semiconductor chip and giving electric signals to the electrodes from the tester. Therefore, the probe needles can be easily aligned with a wafer.