baber/WOPTO huggingface dataset:
Patent JP-H09295889-A (JP)
Title: Seed chuck of apparatus for pulling up semiconductor single crystal
Inventor: ANDO TADAYOSHI
IPC: C30B29/06
Filed: 1996-05-01
Abstract: PROBLEM TO BE SOLVED: To suppress both an SiC reaction and the occurrence of cracking on the surface of a carbon fiber-reinforced composite material and prolong the service life by covering even the inner surface of a recessed part on the surface of the carbon fiber-reinforced carbon composite material with a thin pyrolytic carbon film. SOLUTION: This seed chuck of an apparatus for pulling up a semiconductor single crystal is formed of a carbon-fiber reinforced carbon composite material contained therein. The seed chuck is obtained by laminating prepreg sheets woven from carbon fibers lengthwise and breadthwise, press forming the resultant laminate, providing a formed product, then secondarily curing the formed product while carrying out the pressing and compression, subsequently impregnating the resultant product with a carbonaceous material, baking the impregnated product, affording a seed chuck, then installing the resultant seed chuck in a reactional tube of a vacuum heating furnace, evacuating and degassing the interior of the reactional tube, subsequently heating the seed chuck at 800-2500 deg.C,  keeping the internal pressure in the furnace under <=100Torr while feeding a gas at 3-30% hydrocarbon concentration thereto and pyrolyzing the hydrocarbon. Thereby, even the inner surfaces of open holes 21 present on the surface of the seed chuck are covered with a pyrolytic carbon film 5 having <=20μm average thickness.
Patent JP-H04335230-A (JP)
Title: Production of optical master disk
Inventor: KINOSHITA MASAYUKI
IPC: G11B7/26
Filed: 1991-05-09
Abstract: PURPOSE:To increase an information recording density by decreasing the shoulder droop in the groove sectional shapes of the pregrooves and prepits of an optical disk. CONSTITUTION:The photosensitive layer X of a positive type photoresist provided on a substrate is irradiated with a laser beam and is thereby formed with recessed parts D for forming the prepits corresponding to the pregrooves and address pits for tracking. Wavelengths longer than heretofore, i.e., wavelengths at which the absorbance of the photoresist layer X attains a range of <=0.1 or the wavelengths ranging from 465nm to 529nm are used as the wavelength of the laser beam. The absorbance decreases as the wavelength is longer, but there is the output higher than the degraded absorbance as the light intensity. The lack of the light intensity does not arise. A photoreaction does not take place unless a high light quantity is given when such a long wavelength region is used for exposing of the photoresist layer X and, therefore, the shapes having the decreased steep shoulder droop in the groove sections are obtd by steepening the intensity distribution of a high light quantity region.
Patent JP-H09315443-A (JP)
Title: Packaging bag
Inventor: FURUTA KATSUJI
IPC: B65D30/20
Filed: 1996-05-30
Abstract: PROBLEM TO BE SOLVED: To enable standing, for example, a food item such as miso (soybean paste) packaged in a bag in a stabilized state. SOLUTION: The subject relates to a gusseted packaging bag formed of a synthetic resin film and shaped angularly at four corners as seen from above by heat sealing. The sides 4, 5' on the right and left are each given by heat- sealing parts 8, 9 a substantially horizontal folding line in such a manner as to make the bottom of the bag as flat as possible. The parts underlying the heat-sealing parts 8, 9 form the bottom part of the packaging bag.
Patent JP-H083497-A (JP)
Title: Ink for ink jet recording, weathering stabilizer and production of print
Inventor: TANUMA TOSHIHIRO
IPC: C09D11/00
Filed: 1994-06-17
Abstract: PURPOSE:To obtain an ink which can be used for a long time without causing the plugging of a nozzle of an ink jet printer and can give a record of good weathering resistance. CONSTITUTION:This ink is a water-base ink jet recording ink mainly consisting of a water-soluble dye, a wetting agent and water, wherein at least one fade inhibitor selected from the group consisting of a thiourea derivative, a thiosemicarbazide derivative and a thiocarbohydrazide derivative is further contained.
Patent JP-H10311194-A (JP)
Title: Press-in device of shaft casing
Inventor: HORAI KAORU
IPC: E21D5/10
Filed: 1997-05-10
Abstract: PROBLEM TO BE SOLVED: To prevent the twists in a circular arc piece constituting a hold device and a distorted circle and, at the same time, to make it possible to connect a basic stand to a hold section in a detachable manner. SOLUTION: A press-in device of a shaft casing is equipped with a basic stand 23 having an opening passing the shaft casing through it in the central part, a plurality of press-in liquid pressure cylinders 24 erected on the basic stand 23 and expanded up and down and a circular holding member 25 mounted to the press-in liquid pressure cylinders 24 and moving up and down with the expansion. In that case, the holding member 25 is constituted of an intermediate circular arc piece 25a substantially fixed in the horizontal surface and both right and left circular arc pieces 25b and 25c opened and closed by a driving device 27 connected to both sides with a pin 26. The lower mounting body of each of the press-in liquid pressure cylinders 24 is inserted in a channel storing section of a mounting seat installed at the basic stand 23, and it is fixed with a fixed member 39 on the side of the intermediate circular arc piece 25a.
Patent JP-H09317988-A (JP)
Title: Cylindrical mount device and its manufacture
Inventor: KATO RENTARO
IPC: F16M7/00
Filed: 1996-05-30
Abstract: PROBLEM TO BE SOLVED: To realize with a simple structure and excellent manufacturing property, a cylindrical mount device by which slip when torsional vibration is inputted, between the peripheral surface of a rubber elastic body and the inner circumferential surface of the mounting hole of an outer cylindrical member, is prevented. SOLUTION: An outer cylindrical member 12 is formed of an aluminum alloy extruded molding, and also recessed parts and projected parts axially extended are extruded in inner circumferential surfaces of mounting holes 28 formed in an extruding direction, the inner circumferential surfaces of the mounting holes 28 are tightly stuck directly to peripheral surfaces of rubber elastic bodies 20, and precompression in a shaft perpendicular direction is applied to the rubber elastic bodies 20, thereby the peripheral surfaces of the rubber elastic bodies 20 are fixed on the inner circumferential surfaces of the mounting holes 28.
Patent JP-S62293786-A (JP)
Title: Semiconductor photodetector device
Inventor: KONDO MASATO
IPC: H01L31/10
Filed: 1986-06-13
Abstract: PURPOSE:To improve a gain by preventing the extinction of carriers produced in a light absorbing layer caused by surface recombination by forming a high- resistance window layer having a wider band gap than that of a high-resistance In1-xGAxAsyP1-y (0<=x, y<=1) light absorbing layer on this light absorbing layer. CONSTITUTION:P-type conductive regions 3A and 4A are formed by Zn oozed into a semiconductor when electrodes 3 and 4 consisting of an Au Zn alloy are formed by evaporation and alloying heat treatment. These regions 3A and 4A penetrate a high-resistance InP window layer 6 and reach an InxGa1-xAsyP1-y light absorbing layer 5. The high-resistance InP window layer 6 has a wider band gap than that of the In1-xGaxAsyP1-y (0<=x, y<=1) light absorbing layer 5. Accordingly, among the incident lights through a surface S, the lights having a wavelength of the band gap of InP or longer than that are not absorbed by the window layer 6, but are absorbed by the light absorbing layer 5 and distribute to a gain. Thus, it can be effectively prevented that the carriers generated in the light absorbing layer by the incidence of the light extinguish by surface recombination, and accordingly, a gain is improved.
Patent JP-S6085954-A (JP)
Title: Cover for damping roll of offset printer
Inventor: KAKIHANA KAZUMASA
IPC: D04B1/02
Filed: 1983-07-25
Abstract: PURPOSE:To obtain a fabric cover completely free from irregularity caused by shrink dapple thus accelerating the printing speed of a printer, by preventing continuation in the axial direction of a portion of a high water-contractive yarn running over a stitched loop of yarn and a portion running under a stitched loop of yarn. CONSTITUTION:A cloth cover 80 is a napped fabric woven into a cylindrical form with a stitched loop of yarn 2 with a high water-contractive yarn 1 inserted straight in a circumferential direction running between stitched loops of yarn at an interval of a single loop or a plural number of loops. A doubling yarn 1 does not continue at a spot 6 jumping over a stitched loop of yarn and at a spot 5 diving under the loop either in an axial direction W or in a circumferential direction C. Besides, a fine dappled pattern is uniformly distributed in a ground texture. Consequently, it is possible to obtain a fabric cover having a uniform surface completely free from an irregularity caused by a shrink dapple in the circumferential direction and the axial direction of a roll. A damping roll equipped with a fabric cover does not cause a wetting dapple even at high rotary speed, thus enabling printing at high speed.
Patent JP-S6115561-A (JP)
Title: Linear pulse motor
Inventor: NAKAMURA TOORU
IPC: H02K41/03
Filed: 1984-06-29
Abstract: PURPOSE:To linearly move a movable element by energizing bearings provided at both sides of the element of a linear pulse motor to the projection of a stator. CONSTITUTION:Teeth 11c and projecting strips 11a, 11b are formed at both sides of a stator 11. The inner surfaces S of the strips 11a, 11b are reference surfaces, and bearings 14, 16 of a movable element body 12 are contacted with the reference surfaces. The inner lace 14a of the bearing 14 is engaged with the reference surface S side projection 13a of a supporting shaft 13, and the bearings 14 are mounted through a spacer 15. On the other hand, since the bearing 16 is mounted through a spring 17 at the shaft 13, the outer races 14b, 16b of the bearings 14, 16 are energized to be contacted under pressure with the reference surfaces S. Accordingly, since the bearings 14, 16 are always contacted with the reference surface S, the linearity is improved.
Patent JP-S63303283-A (JP)
Title: Solenoid valve driving device mounted on vehicle
Inventor: NISHIHARA TOSHIHIKO
IPC: F16K31/06
Filed: 1987-05-30
Abstract: PURPOSE:To keep the output electric current constant and stabilize the operation of a solenoid valve by operating a transistor as emitter grounding type amplifier and supplying the input voltage through a constant voltage maintaining circuit. CONSTITUTION:The emitter terminal TE of a transistor Q1 is connected with one edge of an electric power source BV through a resistor RE, and a collector terminal TC is connected with other edge of the electric power source BV through the solenoid coil of a solenoid valve SV. A constant voltage maintaining circuit CV is connected with the base terminal TB so that the input for the emitter grounding type amplifying circuit of the transistor Q1 is obtained. A resistor RB is connected between the base terminal TB of the transistor Q1, and other edge of an electric power source BV, and the base electric current of the transistor Q1 is controlled so as not to become excessively large.
Patent JP-H0431686-A (JP)
Title: Screw rotor
Inventor: KAWAMURA TAKESHI
IPC: F04C18/16
Filed: 1990-05-25
Abstract: PURPOSE:To reduce the amount of gas leakage by allowing each tooth profile for one of or both a male and a female rotor in the cross sectional surface normal to the shafts of both of the rotors when both of the rotors are rotated while being tightly meshed with each other, to be each basic tooth profile, and thereby forming each new tooth profile in such a way that each basic tooth profile is cut down uniformly in size in the cross sectional surface normal to each shaft. CONSTITUTION:In the cross sectional shape of each screw rotor normal to each shaft, respective solid line 101 and 102 indicate the cross sectional shape normal to each shaft of tooth profiles for a male rotor M and a female rotor F which are rotated while being tightly meshed with each other, that is, it indicates the shape of each basic tooth profile. In this case, respective rotor M and F are formed into each shape as indicated by each dotted line in such a way that respective basic tooth profiles for both of the male rotor M and the female rotor F are cut down uniformly in size in the normal direction to each basic tooth profile in the cross sectional surface normal to each shaft in order that a gap is thereby formed between both of the rotors. When the size by which each basic tooth profile is uniformly cut down in the cross sectional surface normal to each shaft, is made small as described above, a gap in the follow-up side is thereby made small, and the amount of leakage in the follow-up side, which exerts a great influence on the performance of a screw rotating machine, can be made small, so that the performance of the screw rotating machine can thereby be enhanced to a great extent.
Patent JP-H04360521-A (JP)
Title: Growth method of polycrystalline silicon
Inventor: NAKATANI TSUNEJI
IPC: H01L21/205
Filed: 1991-06-07
Abstract: PURPOSE:To obtain a polycrystalline silicon growth method wherein the formation of an oxide film on the interface between a semiconductor substrate and polycrystalline silicon in the conventional polycrystalline silicon growth process is prevented and contact resistance is reduced, when electric contact between the semiconductor substrate and the polycrystalline silicon is formed. CONSTITUTION:A polycrystalline silicon growth equipment is equipped with introducing pipes of HF gas and H2O gas. In polycrystalline silicon growth process, mixed gas of N2, H2O and HF is introduced after a semiconductor substrate 4 is put in a furnace core tube 2 and before the polycrystalline silicon is grown. Hence an oxide film formed when the semiconductor substrate 4 was put in the furnace core tube 2 is eliminated, and the polycrystalline silicon is grown. Thereby contact resistance is reduced.
Patent JP-S5361336-A (JP)
Title: Electrostatic recording material
Inventor: SUGIYAMA YOSHIHIRO
IPC: G03G5/02
Filed: 1976-11-15
Abstract: PURPOSE: To render effective, electrostatic recording by a front side control system and esp. by a both side control system, by specifying smoothness of a base and a recording layer both subjected to a resistance lowering treatment. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H09316455-A (JP)
Title: Door sealing structure for coke oven
Inventor: ANDO TAKESHI
IPC: C10B25/16
Filed: 1996-05-30
Abstract: PROBLEM TO BE SOLVED: To provide a door sealing structure for a coke oven capable of improving the life in fixing a sealing plate with fixing plates. SOLUTION: This door sealing structure for a coke oven is obtained by bringing a sealing plate 4 into contact with the surface on the oven body side of an oven lid 3, pressing and fixing the sealing plate 4 in contact with the surface of an opening 5 for a small lid port 1 with fixing plates 11 and 12 composed by separating thereof into the upper fixing plate 11 and the lower fixing plate 12 having an inner frame 14 of a small lid. The upper fixing plate 11 is composed by dividing thereof into three divided pieces along the upper side of the opening 5. Bolt holes for installing are respectively bored in the respective divided pieces. The adjacent divided pieces are mutually superposed in the plate thickness direction. Prescribed gaps, however, are formed in parts opposite in the longitudinal direction.
Patent JP-S5470038-A (JP)
Title: Electrode for forming latent image
Inventor: YAMADA AKIRA
IPC: B41J2/395
Filed: 1977-11-16
Abstract: PURPOSE:To simplify the wiring by coloring the wire at every predetermined interval with different color paints, and processing the wiring in accordance with a separate color. CONSTITUTION:Coloring device 20 with painters 21a-21c is disposed between wire-wound drum 11 and wire bobbin 12. Painters 21a-21e are disposed in the certain range of C portion of adhesive tape 14 on the circumference of the wire- wound drum 11 such that coloring units are arranged in order. The painters 21a- 21e (for example, red, black, blue, orange, and green) are successively driven synchronously with the circumferential speed of the drum 11 by exciting the solenoids 22 of either side at every period of the drum 11. After the wire 13 having been colored with it clamped for a certain period, the wire 13 is wound around the drum 11. Thereafter the adhesive tape 14 is successively removed from its end, and wiring is done at the connector terminal. Accordingly, if the wire 13 slips out from the adhesive tape 14, the disorder of coloring turn takes place, hence slipping out of the wire 13 can be easily confirmed, and further, the mistake of wiring can be also confirmed by the color.
Patent JP-S6027506-A (JP)
Inventor: SUZUKI YUKIO
IPC: B28B11/10
Filed: 1983-07-26
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S5660691-A (JP)
Title: Treatment of waste water containing organic substance
Inventor: TSUKAMOTO TERUKI
IPC: C02F9/00
Filed: 1979-10-23
Abstract: PURPOSE: To treat waste water to the high degree simple and with good efficiency by a method wherein waste water containing org. substances in high concn. is electrolyzed at first and electrolyzed liquid is subjected to the membrane separation.  
     CONSTITUTION: When waste water containing org. substances in high concn. such as excretion or a waste water of marine product processing is treated, the waste water 1 is introduced in the first place into a biological reaction which serves also as a sodimentation apparatus A and an oxidizing gas 10 is supplied to carry out oxidation reaction. Herein, the treated waste water is separated into a sludge 3 and separated liquid 2 and this separated liquid is sent into an electrolytic treatment apparatus B. Then, easily decomposable org. substances in the separated liquid 2 are decompared by oxidation and org. substances in the waste water are coagulated because metal hydroxides formed during electrolysis act as a coagulating agent. Thereafter, the reparated liquid is sent into a permeable membrane apparatus D through the sedimentation apparatus. Herein, the sludge 6 and the separated liquid are separated into a concentrated liquid 7 and a permeated liquid 8. As described above, org. components are concentrated simply and treated in good efficiency without using water. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S6115618-A (JP)
Inventor: KANEKO TATSUMI
IPC: A01F12/00
Filed: 1984-07-02
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H032715-A (JP)
Title: Laser light scanner
Inventor: IGUCHI AKIO
IPC: G02B26/12
Filed: 1989-05-30
Abstract: PURPOSE:To eliminate an influence of the surface wave of a polygonal mirror upon the quality of printing by forming the reflection face of the polygonal mirror in the thickness direction with the same curvature as an arc described with the mirror center as the center. CONSTITUTION:The side face of each of 6 side parts of a polygonal mirror 6 functions as a reflection face 6a, and the shape in the thickness direction (cross section) of the reflection face 6a is formed to a convex face consisting of an arc face formed with the same curvature as an arc described with the mirror center as the center. Consequently, laser light is reflected in the same state which ever position of reflection faces 6a is made incident on. Thus, all of the laser light made incident on the polygonal mirror 6 passes the same optical path after being reflected by the reflection face 6a of the polygonal mirror 6 though the reflection face 6a is displaced in the thickness direction of the mirror by surface wave of the polygonal mirror 6, and the optical path is not deflected, and the image of the laser light is formed at a prescribed image forming point on the surface of a photosensitive body without positional deviation.
Patent JP-2000329157-A (JP)
Title: Twin clutch
Inventor: IMANAKA HIDEYUKI
IPC: F16D13/46
Filed: 1999-05-18
Abstract: PROBLEM TO BE SOLVED: To maintain a cut-off characteristic in the initial state even with a large wear amount of either one of two friction discs in a wear compensating mechanism of a twin clutch. SOLUTION: An interlocking mechanism 32 of a clutch is a mechanism for moving an intermediate plate 11 axially at a specified ratio to the axial moving quantity of a pressure plate 10. The interlocking mechanism 32 has a first boss 33, a second boss 34 and a second strap plate 35. The first boss 33 is frictionally engaged in an axially movable manner with the intermediate plate 11. The second boss 34 is frictionally engaged in an axially movable manner with the pressure plate 10. The second strap plate 35 supports the first and second bosses 33, 34 so as to interlock the first boss 33 with the axial movement of the second boss 34.
Patent JP-H08295647-A (JP)
Title: Production of fluorenone
Inventor: IGARASHI TAKESHI
IPC: C07B61/00
Filed: 1995-04-25
Abstract: PURPOSE: To efficiently and economically synthesize fluorenone having high purity from bisfluorene in a short time. CONSTITUTION: The objective fluorenone is produced by mixing 2.5-30wt.% solution of bisfluorene with 35-50wt.% of an alkaline aqueous solution and an oxidizing catalyst composed of 30-70wt.% aqueous solution of a single or a mixed amine derivative having a composition expressed by the formula [R<1> C6 H4 N<+> (R<2> )3 -]a X (R<1> is a hydrogen atom or a lower alkyl group; R<2> is a lower alkyl group; (a) is an integer of 1 or 2; X is SO4 <--> or CH3 SO4 <-> ; (a) is 2 when X is SO4 <--> and is 1 when X is CH3 SO4 <-> ), and introducing oxygen in an amount of 1.0-30 times mol based on the bisfluorene.
Patent JP-H0626126-A (JP)
Title: Sound-insulating panel for partition
Inventor: OKUZAWA MASAYUKI
IPC: E04B1/82
Filed: 1992-05-28
Abstract: PURPOSE:To obtain a light-weight panel, in which a sound is insulated to a high degree, by laminating damping materials in front and rear panels having hollow structure in the sound-insulating panel, a surface of which is composed of a metallic plate and which has hollow double structure. CONSTITUTION:Both surface layers 1a, 2a consisting of steel plates and surface back layers 1b, 2b made up of plywood and both polyvinyl chloride sheets 1d, 2d and rear layers 1e, 2e composed of plywood are laminated successively, thus forming front and rear panels 1, 2 having hollow double structure. Damping materials 1c, 2c having a loss factor of approximately 0.2 or more and consisting of a high-molecular foam are laminated in the surface and rear panels 1, 2. The front rear panels 1, 2 are laminated on a partition, in which glass wool 5 is inserted to a stud 3, thus forming a sound-insulating panel 4. Accordingly, bending vibrations as a sound-insulating loss are inhibited, and weight is lightened and sound-insulating properties can be improved.