baber/WOPTO huggingface dataset:
Patent JP-S5632526-A (JP)
Title: Prepreg sheet
Inventor: MAEKAWA IWAO
IPC: C08J5/24
Filed: 1979-08-23
Abstract: PURPOSE: A prepreg sheet useful for an electrical insulating material, having improved electrical properties and heat resistance, obtained by blending a specific unsaturated polyester with a polymerizable monomer, a photosensitizer, and an organic peroxide, followed by making the blend β-stage by chemical rays.  
     CONSTITUTION: About equlimolar amounts of dicyclopentadiene, α,β-unsaturated dibasic acid(anhydride), and water are blended, and reacted at not higher than 150°C to give a partially esterified carboxylic acid shown by the formula (X is 2W3C α,β unsaturated hydrocarbon), which is subjected to polycondensation with a saturated dibasic acid (anhydride), polyfunctional alcohol, etc. to give an unsaturated polyester. 100pts.wt. mixture consisting of 40W90pts.wt. unsaturated polyester and 60W10pts.wt. monomer with a polymerizable double bond is blended with 0.5W4.0pts.wt. photosensitizer and 0.5W2.0pts.wt. organic peroxide to prepare a resin composition, with which a base is impregnated and it is irradiated by chemical rays with wavelength of 200W500nm so that it is converted into β-stage.  
     EFFECT: Not causing surface tackiness. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H01277833-A (JP)
Title: Original size detecting device for copying machine
Inventor: KATO EIICHI
IPC: G03G15/04
Filed: 1988-04-30
Abstract: PURPOSE:To surely detect an original size with one sensor by conducting reflected light from an original to an optical sensor through a small hole provided in a light shielding member which regulates a detection range and comparing the output signal of the optical sensor with a reference signal. CONSTITUTION:The optical sensor 16 is provided out of the optical path of the reflected light which passes through the image forming lens 6 of an exposing device equipped with a light source 2 which optically scans the original while moving on a specified path and on a position where the reflected light from the original by the light source 2 is made incident through the mirrors 3-5 of said device. The light shielding member 18 is provided, which is arranged in a member moving in the same direction as the light source 2 at 1/2 speed thereof and where the small hole 19 through which the reflected light from the specified width of original is conducted to the optical sensor 16 is formed, so that the existence of the original is detected by comparing the output signal from the optical sensor 16 which is in the middle of exposing and scanning with the reference signal every plural check timings previously set. Thus, many original sizes can be detected with one sensor without making the constitution complicated.
Patent JP-S62264608-A (JP)
Title: Rotary transformer
Inventor: UENISHI MITSUAKI
IPC: G11B5/02
Filed: 1986-05-12
Abstract: PURPOSE:To obtain a small-sized, high-performance rotary transformer by a method wherein the magnetic surfaces of a primary side transformer and a secondary side transformer facing each other are so formed as to have curved surfaces and a predetermined gap is formed between the protruded part of one magnetic surface and the recessed part of the other magnetic surface and the two transformers are supported so as to rotate relatively. CONSTITUTION:If currents induced by a magnetic head are applied to primary side coils 5 and 6, even if magnetic surfaces 4a and 4b are curved surfaces, a gap and a gap 3 between the primary side transformer 1 and the secondary side transformer 2 can be kept at a constant width. If the inductance and the loss resistance of the head are denoted by Lh and Rh, the self-inductance and the loss resistance of the combined rotary transformer 1 are denoted by L1 and R1 and the winding ratio and the coupling coefficient of the transformers l and 2 are denoted by (n) and (k) respectively, the low frequency region cut-off frequency fc of the rotary transformer is expressed by the equation I and the gain G in the intermediate frequency region of the rotary transformer is expressed by the equation II. With this constitution, by increasing the self-inductance L1 of the transformer 1, the cut-off frequency fc can be decreased and the gain G can be increased.
Patent JP-2000299480-A (JP)
Title: Electrode for p-type semiconductor layer
Inventor: SUZUKI YUZURU
IPC: C23C28/04
Filed: 1999-04-15
Abstract: PROBLEM TO BE SOLVED: To obtain an electrode for p-type semiconductor layer that shows more excellent ohmic characteristic and contact property with p-type layer under a higher temperature than an electrode of the double-layer structure of Ni/Au, by laminating Ir layer and Au layer on the p-type layer consisting of III-V nitride-based compound semiconductor. SOLUTION: A III-V nitride-based compound semiconductor is epitaxially grown on an Si substrate 1 via an insulation layer and a buffer layer, and then a p-type impurity is doped to form a p-type GaN layer 2. On this GaN layer 2, a couple of p-type electrodes 3 are loaded in the ohmic contact condition to cover the device surface except for the electrode 3 forming area with the insulation film 4. The p-type electrode 3 is formed in the double-layer structure formed by laminating Ir layer 3a and Au layer 3b in this sequence. As a result, the excellent ohmic contact condition even under higher temperature condition can be realized against the p-type layer 2 consisting of the III-V nitride based compound semiconductor and moreover close contact property with the p-type layer 2 is never deteriorated.
Patent JP-H09291685-A (JP)
Title: Execution method of double floor
Inventor: TAKEBE YOSHIYUKI
IPC: E04F15/00
Filed: 1996-04-26
Abstract: PROBLEM TO BE SOLVED: To carry out the execution of works efficiently by adhering and laminating throw-board plywood on a foundation panel by a pressure sensitive adhesive double-coated tape while laminating a flooring material on the throw- board plywood. SOLUTION: Foundation panels 1, in which support legs 2 are fixed onto undersides and which consist of particle boards, are arranged on the top face of a concrete slab 9, in which the cord of an OA equipment is wired on a surface. Long-sized pressure sensitive adhesive double-coated tapes 3 are laminated on the top faces of the arranged foundation panels 1 at intervals so as to be extended over two or more of the foundation panels 1. A throw-board plywood 4 composed of veneer boards is bonded on the top faces of the double-coated adhesive tapes 3. Accordingly, since the foundation panels 1 and the throw-board plywood 4 are laminated without using nails, wirings, the foundation panels 1, and the throw-board plywood 4 can be executed efficiently without being damaged.
Patent JP-S5441831-A (JP)
Title: Production of p-aninobenzaldehyde
Inventor: KAWAMURA MASAO
IPC: C07C213/00
Filed: 1977-09-07
Abstract: PURPOSE: Hydrogen sulfide is made to act on an aqueous sodium hydroxide to form sodium hydrogan sulfide, with is further reacted with sodium hydroxide to afford sodium sulfide. Then, sulfur is added to the sodium sulfide to prepare sodium polysulfide, with which p-nitrotoluene is reacted to produce titled compond.  
     CONSTITUTION: p-Nitrotoluene is reacted with sodium polysulfide in a mixed solvent of an alcohol and water containing an alkali in which an alcohol preferably contains at least 80% of ethanol to afford p-aminobenzaldehyde wherein the sodium polysulfide is prepared by first forming sodium hydrogen sulfide from sodium hydroxide aqueous solution and hydrogen sulfide by the reaction at 10W60°C subsequently forming sodium sulfide by adding sodium hydroxide at a molar ratio of 0.1W3.0 to NaSH and further adding sulfure to the sodium sulfide. The sodium polysulfide contains sulfur in an amount corresponding to the formula Na 2 S x  (x is 2-5).  
     USE: Intermediate of medicines, agricultural chemical. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S60253144-A (JP)
Title: Color fluorescent light emitting tube
Inventor: FUKUDA TATSUO
IPC: H01J63/06
Filed: 1984-05-28
Abstract: PURPOSE:To completely prevent leakage of electrons to the adjacent area, by arranging a shielding plate above both sides of the diffusion plates. CONSTITUTION:Screen grids are positioned to cover control grids 23 concentrically, and opposes each light emitting cell 12. Screen bodies 30 are positioned diagonally above the diffusion plates 14 and faces the diffusion plates 14 from both sides of the screen grids 28. After high speed electron beam released from a negative electrode 22 is controlled by the control grid 23 so that it will pass the control grid 23 only in the light emitting cell regeon of the light emitting cell which is to emit light, it passes the screen grid 28 towards the light emitting cells 12. Then it receives diffusion action from the diffusion plates 14, so as to head towards the periphery of the cell, and collides with the surface of the light emitting cells 12 uniformly, to make the light emitting cells 12 emit light. During this period, the electrons within the region are sealed in the region by the diffusion plates 24, whereas the electrons which jumps into the adjacent area over the diffusion plate is stopped by the screen bodies 30.
Patent JP-H04227467-A (JP)
Title: Continuous furnace thermally treating work
Inventor: DEIITERU BARUGA
IPC: B65G17/08
Filed: 1991-02-19
Abstract: PURPOSE: To provide a long life continuous furnace having a ceramic conveyor in which risk of damaging rods extending transversely is suppressed. CONSTITUTION: A continuous furnace for the heat-treatment of workpieces comprises a chain-like conveyor belt 18 consisting of a ceramic material and having a plurality of links 34, 34', 34", 34"'; 36, 36', 36", 36"'; 38, 38', 38" which are arranged one beside the other and one behind the other and which are interconnected by rods extending transversely to the feeding direction 19. The arrangement provides that a plurality of rods 40, 44, 48 are provided one behind the other, viewed over the full width of the conveyor belt 18, and that gaps 42, 46, 50 to 55 remaining between the separate rods are offset laterally, viewed in the feeding direction 19.
Patent JP-H09291296-A (JP)
Title: Production of lubricant and magnetic recording medium using the lubricant
Inventor: KONDO HIROFUMI
IPC: C10M107/38
Filed: 1996-04-26
Abstract: PROBLEM TO BE SOLVED: To obtain a high-purity lubricant suitable for producing a magnetic recording medium excellent in traveling properties, wear resistance and durability, by esterifying a terminal carboxyl perfluoropolyether synthetic substance, extracting the esterified compound with a solvent and hydrolyzing the extracted substance. SOLUTION: A terminal carboxyl-containing perfluoropolyether synthetic substance is esterified with an alcohol containing a relatively long hydrocarbon chain (e.g. 1-octadecanol), etc., and the prepared reaction product is extracted with a solvent such as hexane or an ether to separate and remove impurities and the extracted esterified compound is hydrolyzed with a solution of sodium hydroxide or potassium hydroxide to give the objective lubricant.
Patent JP-H04317450-A (JP)
Title: High strength composite material composition and production of hardened body using same
Inventor: MANO KIICHI
IPC: B28C7/00
Filed: 1991-04-15
Abstract: PURPOSE:To produce a compsn. easy to knead and mold and giving a hardened body having high mechanical strength. CONSTITUTION:A mixture of a potentially hydraulic substance with a water-soluble polymer and water is mixed, kneaded, dried and crushed to produce a composite material compsn. Water and an alkali irritant are added to this compsn., kneaded and molded to obtain a hardened body. The composite material compsn. has excellent kneadability and moldability and the hardened body has high mechanical strength.
Patent JP-S60251636-A (JP)
Title: Semiconductor device
Inventor: TOKUMOTO YUKITAKA
IPC: H01L21/60
Filed: 1984-05-28
Abstract: PURPOSE:To eliminate faulty plating or poor wire bonding by a method wherein an insulating substrate is fixed for unification of leads to the land-side ends of said leads positioned along the periphery of a land. CONSTITUTION:To the inner ends 4c of a plurality of leads 4, a frame-shaped insulating substrate 10 is fixed with, for example, an adhesive agent. The fixation is accomplished by pressing the ends 4c to a flat platform by the insulating substrate 10, with a lead frame 1 positioned on the flat platform. A process follows wherein Ag or Au layers 7' are attached by plating to a land region 3 on the lead frame 1 and the inner ends 4c protruding from the substrate 10. In a device designed as such, difference is eliminated from among the inner ends 4c, enhances stability, ensures reliable wire bonding, preventind disruption of wires, thereby improving yield.
Patent JP-H02286093-A (JP)
Title: Separation and recovery of vitamin b12 and its derivative
Inventor: YAMANAKA KOJI
IPC: C12P19/42
Filed: 1989-04-27
Abstract: PURPOSE:To afford the methane fermentation process with a new added value by a specific treatment of a liquid extract into which vitamin B12 derivatives have been extracted from the bacteria sludge produced by methane fermentation process to separate the title substances in high efficiency at low cost from the above sludge. CONSTITUTION:Firstly, a liquid extract into which vitamin B12 and its derivatives (VB12s) have been extracted from the bacteria sludge produced by methane fermentation process is brought into contact, at pH <=5, with an adsorptive resin incapable of ion exchange consisting of a styrene-divinylbenzene copolymer to effect adsorption of the VB12s. Secondly, the VB12s are eluted from said resin with an organic solvent followed by removing the organic solvent from the resultant elute. The elute is then made alkaline and brought into contact with an anion exchange resin as hydrophilic matrix allowed to contact with an alkaline solution in advance to effect adsorption of the VB12 to said resin. Finally, a salt solution is brought into contact, under an alkaline condition while successively increasing its concentration, with the above anion exchange resin, thus effecting the separation (desorption) of the VB12.
Patent JP-H1144099-A (JP)
Title: Repaired and reinforced concrete structure and method for repairing and reinforcing the same
Inventor: UCHINO HIROYUKI
IPC: E04G23/02
Filed: 1997-04-11
Abstract: PROBLEM TO BE SOLVED: To sufficiently ensure reinforcing effects by fixing a repairing and reinforcing layer comprising a matrix resin containing single fibers arranged in one direction on the surface of a concrete structure. SOLUTION: A repairing and reinforcing layer 3 comprising a matrix resin containing single fibers 2 arranged in one direction is fixed on the surface of a concrete structure 4. The single fiber 2 being a reinforcing fiber is such that the length of fiber is 50-10,000 times the diameter of fiber, fiber tensile strength is 1,000 MPa or more, and modulus of elasticity in tension is 50 GPa or more. The length of the reinforcing fiber 2 is approximately 50 times the diameter of fiber to sufficiently transmit stresses. If a fiber whose modulus of elasticity in tension is below 50 GPa is used, the tensile rigidity of the layer 3 does not become large enough for the rigidity of a concrete layer, and hence sufficient reinforcing effects cannot be provided.  Further if a fiber whose tensile strength is below 1,000 MPa is used, the layer 3 has insufficient strength so that sufficient reinforcing effects cannot be achieved.
Patent JP-S5732441-A (JP)
Title: Photosensitive resin composition
Inventor: OKAMOTO TAKASHI
IPC: C08L77/00
Filed: 1980-08-06
Abstract: PURPOSE:To obtain the titled composition causing slight swelling in water after photosetting and enabling water development by blending water soluble polyamide with a vinyl alcohol polymer, a polymerizing vinyl monomer and a photoreaction initiator. CONSTITUTION:To 100pts.wt. water soluble polyamide (A) such as water soluble polyamide having sulfonic acid or sulfonate in each molecule are added 0.5- 100pts.wt. vinyl alcohol polymer (B) preferably having >=50 polymn. degree and >=50mol% saponification degree, a polymerizing vinyl monomer such as bisacrylamide of diamine or bis(alpha-alkyl)acrylamide by about 5-100wt% to 100wt% of the total amount of the components A, B, and a photoreaction initiator (D) such as benzophenone or benzoin by about 0.01-10wt% to the amount of the total resin composition. The resulting resin composition is formed into a film or a sheet having a desired thickness.
Patent JP-2000302610-A (JP)
Title: Herbicide for annual weed growing in turf and weeding
Inventor: SATO TAKASHI
IPC: A01N47/30
Filed: 1999-04-15
Abstract: PROBLEM TO BE SOLVED: To obtain the subject herbicide having high herbicidal effects on annual weeds growing in turf, inhibiting the rearing of the turf and deteriorating the quality of the turf with slight phytotoxicity to the turf and having a long duration of proper timing for application by including a specific urea derivative as an active ingredient. SOLUTION: This herbicide comprises a 3-phenyl-1,1-dimethylurea derivative, preferably a derivative represented by the formula (R is H, a lower alkyl or an alkoxy; X is a halogen, H, a lower alkyl or an alkoxy; (n) is 0, 1, 2 or 3) as an active ingredient. Furthermore, the derivative is preferably 3-(4- isopropylphenyl)-1,1-dimethylurea or 3-(3-chloro-p-tolyl)-1,1-dimethylurea, and soil before the emergence or germination of turf is preferably treated therewith.
Patent JP-H08208321-A (JP)
Title: Production of ceramic material which improves combustion efficiency of hydrocarbon
Inventor: SATO KAZUO
IPC: B01D53/94
Filed: 1993-03-30
Abstract: PURPOSE: To obtain a ceramic material which can be brought into contact with various kinds of oil and repeatedly used for filtering and permeating and to improve the economical efficiency by mixing specified four kinds of powder materials, compacting into a spherical shape and firing. CONSTITUTION: The following four components (A)-(D) are used. (A) Natural zeolite mineral is granulated into a powder. (B) Oyster shells are calcined at about 750 deg.C for about 30min and granulated into a powder. (C) Clay mineral containing about 80% silica and about 15% alumina is fired at about 650 deg.C for about 30min and granulated into a powder. (D) Copper oxide is granulated into a powder. These components are mixed in a proportion of (A): 50%, (B): 30%, (C): 15% and (D): 5%, compacted into a spherical shape and fired in an electric furnace at about 550 deg.C for about two hours, and then the furnace temp. is gradually raised to 840 deg.C and maintained for 12 hours for sintering to obtain a ceramic material. The obtd. ceramic material is used by bringing into contact with various kinds of oil to improve the combustion efficiency and to decrease unnecessary waste gas.
Patent JP-H05282914-A (JP)
Title: Lighting system
IPC: F21S6/00
Filed: 1992-03-31
Abstract: PURPOSE:To situate a lighting fixture on the same level as a plate surface when it is not used and effectively use a working surface without being hindered by the lighting fixture by forming the illuminating part of the lighting fixture in such a manner that it is never protruded from a mounting surface when received in an arm part. CONSTITUTION:A fixture 2 is mounted on a mounting surface 1, and a lighting fixture 8 is mounted on the mounting surface 1. When the lighting fixture 8 is used, an illuminating part 12 is rotated and protruded to the outside from an arm part 10 to illuminate the mounting surface 1 in an optional direction. When the lighting fixture 8 is not used, the illuminating part 12 is rotated and received in the arm part 10, and the base part 5 of the fixture 2 is rotated along the side plate part 4 of the mounting surface 1, whereby it can be held in the state laid protruded from the plate surface of the mounting surface 1.
Patent JP-S5538608-A (JP)
Title: Tracking system of recording regenerating device for information signal
Inventor: TAJIMA OSAMU
IPC: G11B5/588
Filed: 1978-09-05
Abstract: PURPOSE:To prevent adjacent recording tracks from being away or overlapping by controlling a driving source by making a comparison between a reference value, corrected according to the state of the driving source, and a regenerative information signal. CONSTITUTION:Through comparator 44, a reference voltage set to reference signal source 43 is supplied to comparator 45, whose output signal is supplied to LPF46 and HPF47. The output of LPF46 is supplied to comparator 44 to correct a reference voltage value from signal source 43, and a frequency component from HPF47 is amplified 48 and then supplied to driver D, where it is controlled. Driving displacement shifts regenerative head HP in position and the level of the regenerated signal from HP also changes. The regenerated signal from HP is supplied to comparator 45 through envelope detector 49, so that an error signal from comparator 45 will lessen. In this way, control is so carried out through a loop of comparator 45, HPF47 and regenerative head HP that the error signal will be zero.
Patent JP-H09265711-A (JP)
Title: Picture recording/reproducing device of optical disk
Inventor: KUMENO YASUO
IPC: G11B19/02
Filed: 1996-03-26
Abstract: PROBLEM TO BE SOLVED: To freely perform reproduction during picture recording without stopping the recording by providing a writing head for recording and a reading head for reproducing in different operation chassis, thus performing independent operations. SOLUTION: A writing head 4 is installed in a writing exclusive operation chassis 2 and a reading head 5 is installed in a reading exclusive operation chassis 3. For an optical disk 1 as a storage medium, one having a zone division recording format (storage capacity is the same among tracks). The rotational speed of a motor for driving the disk 1 is controlled to be constant. Thus, free reproduction is performed during picture recording even without stopping the recording. For example, if recording of a one-hour program starting from 9 p.m., is set to start from 9 p.m., reproduction is performed from its head from 9:30 p.m., and thus the program is watched as if it started from 9:30 p.m.
Patent JP-2000198768-A (JP)
Title: 3-arylphenyl sulfide derivative and insecticide/miticide
Inventor: TOYABE KEIJI
IPC: A01N43/08
Filed: 1999-04-16
Abstract: PROBLEM TO BE SOLVED: To obtain the subject new compound as a specific arylphenyl sulfide derivative, having high efficacy even at low doses, useful as an insecticide of high safety, exhibiting excellent controlling effect on insect pests including hemipteron pests, and capable of controlling resistant insect pests as well. SOLUTION: This new compound is a compound of formula I  R is a 2-6C alkyl, alkenyl, or the like; (n) is 0-2; Ar is a group of formula II [Q1 to Q5 are each N, C-A1 (A1 is H, a halogen, or the like) or the like]; B0 to B3 are each H, a halogen, or the like}, e.g. 2-(2-propenylthio)-4-(4-trifluoromethylphenyl) benzonitrile. The compound of formula I is obtained by reaction of an arylphenylthiol derivative with a compound of RL1 (L1 is a halogen or the like) in the molar ratio of the latter to the former of 1-5 in 0.5-10 l of a solvent (e.g. diethyl ether) in the presence of 1-5 molar times of a base or radical initiator pref. at 0-150 deg.C for 10 min to 20 h.