baber/WOPTO huggingface dataset:
Patent JP-H11273125-A (JP)
Title: Optical disk device
Inventor: IWATA KATSUO
IPC: G11B7/20
Filed: 1998-03-23
Abstract: PROBLEM TO BE SOLVED: To correctly reproduce information from plural kinds of optical disk with different recording density. SOLUTION: In an optical disk device irradiating a light beam emitted from a light source 15 of a wavelength λ1 on the optical disk 10 through an objective lens 19, detecting its reflection beam by a photodetector 21 and reproducing the information through an operation circuit 22 and a signal processing circuit 23, an aperture limit element 18 limiting the aperture of the objective lens 19 so that a light beam spot shape on the optical disk 10 becomes nearly equal in the disk radial direction and track tangential direction when the optical disk 10 is a first disk having relatively high recording density,  and the light beam spot shape on the optical disk 10 becomes large in the disk radial direction and small in the track tangential direction when the optical disk 10 is a second disk having the recording density lower than the first disk and optimized for a light source wavelength λ2(λ1<λ2) is provided.
Patent JP-H01247417-A (JP)
Title: Epoxy resin composition
Inventor: NAKAMURA SHUJI
IPC: C08G59/10
Filed: 1988-03-30
Abstract: PURPOSE:To improve drastically heat resistance and water resistance, by compounding a specified glicidylamine type epoxy resin, a curing agent and, if necessary, a curing accelerator. CONSTITUTION:A diaminodiphenylmethane deriv. (a) of formula I (where R is a 1-10C alkyl) is reacted with 1-10mol of epichlorohydrin based on an active amino hydrogen of the component (a) in the presence of an alkali such as NaOH at 20-120 deg.C to obtain, e.g., a glycidylamine type epoxy resin of formula II. This resin is compounded with a curing agent such as diaminodiphenylmethane or hexahydrophthalic anhydride and a curing accelerator such as 2-ethyl-4-methyl- imidazole.
Patent JP-S59201750-A (JP)
Title: Drum working device
Inventor: YAMAMOTO SEKINORI
IPC: B23B5/00
Filed: 1983-04-27
Abstract: PURPOSE:To permit the high speed rotation of a spindle of an apparatus for working VTR under drum without producing the irregularity of rotation of the spindle by removing a cam from the spindle and mounting it on a cam driving motor shaft movable on the spindle and rectangular coordinates. CONSTITUTION:A rotor 202 is rotated together with a work 209 by a spindle 201 to drive a plate cam driving motor 210 in synchronization with the angular positional signal from an encoder provided on the spindle 201 so that a plate cam 204 is driven and a cam follower 206 follows a lift amount of the plate cam 204 to move left and right. Thus a cutting tool 221 is also moved left and right. And a X-axis drive motor 208a is driven according to an indicated amount output generated from a NC control section to feed a table 203 in the X-axis direction with a constant speed while cutting a tape travelling surface 9a and a tape lead surface 9b of a work 209. Thus, the spindle is not subjected to moment load and fluctuating load thereof so that high speed rotation can be provided.
Patent JP-H05284186-A (JP)
Title: Printing device
IPC: B41J2/505
Filed: 1992-03-30
Abstract: PURPOSE:To enable even a user having no special communication knowledge to automatically fit the communication environment to an external device in despite of the connection secured between the external device and a printing device. CONSTITUTION:A communication state deciding part 3 is provided between an external device 2 and an input part 4 of a printing device. When a series of print data are inputted, the transfer speed of the print data is estimated based on the state of the serial signal at the head part of the data. Then the data sampled based on the estimated transfer speed of data is compared with prescribed data. If the coincidence is decided between both data, the environment of communication is set for the part 4 based on the communication conditions and the estimated communication speed.
Patent JP-S58191954-A (JP)
Title: Method for measuring load-elongation
Inventor: ODA YOSHINOBU
IPC: G01N33/36
Filed: 1982-05-04
Abstract: PURPOSE:To measure a correct value when the degree of shrinkage in the breadthwise direction of a sample is 0% or the sample is elongated properly, by arranging the sample on a pair of hangers which are parallel and are provided at a variable interval and taking out a load for elongation of the center of the sample to the lateral. CONSTITUTION:A center piece 8 is connected to a fulcrum 9 by the principle of the lever and has a structure to take out easily the load for elongation in the center of the sample. In this case, the height of the center piece 8 is adjusted finely by a screw 10 for the purpose of making the center piece 8 and pieces 11 on both sides horizontal. A hook part 12 is engaged with a suspender 13 of a load converter 4, and a mandrel 14 is moved vertically by turning of the screw 10 to equalize the height of the upper edge of a hanger 6. The mandrel 14 is projected to the outside through a hole 25 of a bar 15, which connects the fulcrum 9 and the center piece 8, and a hole 26 of the hanger 6 and forms the hook part 12. The bar 15 is provided in the hollow hanger and is connected to the hanger by the fulcrum 9 in the hanger.
Patent JP-H05283219-A (JP)
Title: Magnetic powder for magnetic recording and magnetic recording medium
IPC: H01F1/06
Filed: 1992-03-31
Abstract: PURPOSE:To obtain a magnetic recording medium having excellent durability, a high S/N ratio and a high playback output, which is to be manufactured by using the magnetic powder of hexagonal system ferrite having easily dispersing and stable characteristics. CONSTITUTION:Oxide and/or hydroxide containing both Si and at least one kind of elements selected from Ba, Sr, Ca, Mg, Zn, Al, Ti and Zr is adhered to the surfaces of the particles of hexagonal system ferrite magnetic powder, and this is used as magnetic powder for magnetic recording. Total amount of element adhered, expressed in terms of an oxide, is preferably set in the range of 0.1 to 5wt.% of the magnetic powder. The adhered substance settles easily and strongly on the surfaces of particles, so that the magnetic aggregation of magnetic powder decreases and the dispersibility improves. A magnetic recording medium satisfying the original purpose can be obtained by using magnetic powder.
Patent JP-S58191758-A (JP)
Title: Production of electroconductive carbon black
Inventor: RIYUU KENJI
IPC: C08K9/04
Filed: 1982-05-04
Abstract: PURPOSE:An organic high-molecular substance with carbon bonds in its molecule and/or bitumen are added to carbon black and the mixture is heat-treated to produce a carbon black that can give a resin or rubber electroconductivity by small amount addition without any adverse effect on physical properties. CONSTITUTION:The objective electroconductive carbon black is produced by adding an organic high-molecular substance with carbon bonds in its molecule such as a vinyl chloride resin or ethylene-vinyl acetate copolymer and/or bitumen to carbon black, preferably in an amount of 0.01-0.3pt.wt. per 1pt.wt. of the carbon black calculated as the carbon source remaining after heat treatment and by treating the mixture with heat at temperatures above 1,000 deg.C, preferably below 1,600 deg.C. The heat treatment is preferably effected avoiding an oxidative atmosphere.
Patent JP-H03274122-A (JP)
Title: Carrying-in device for solid resin in forming mold device of resin
Inventor: USUI HIROO
IPC: B29B13/02
Filed: 1990-03-23
Abstract: PURPOSE:To shorten a molding cycle and to enhance productivity by heating solid resin at the prescribed temp. by a preheating mechanism of resin before solid resin is held by a handling mechanism and charged into a mold. CONSTITUTION:After respective tablets 13 projected to the upper part of a magazine are pinched by closing the interval of a pair of pinching pawls 12, a movable frame 1 is moved to the left and the tablets 13 is positioned to the upper part of a tablet housing box 29. In this case, in a state wherein a cover body 31 is opened, a handling main body 10 is lowered and the tablets 13 are placed into the housing box 29. This housing box 29 is closed by the cover body 31 and the tablets 13 are preheated by a high-frequency heater. When preheating is completed, the cover body 31 is opened. Moreover in a state wherein a pair of pinching pawls 12 of a second handling main body 14 are opened, 5 pieces of tablets 13 are positioned in the side part. After the respective tablets 13 are pinched, these are positioned in the upper parts of respective pots. Furthermore the handling main body 14 is lowered and the tablets 13 are charged into the respective pots.
Patent JP-S58190624-A (JP)
Title: Combustion apparatus
Inventor: NISHIKAWA MAKOTO
IPC: F23N5/24
Filed: 1982-04-30
Abstract: PURPOSE:To prevent the generation of smoke and a malodor in case of the stoppage of combustion by sucking liquid fuel in a nozzle and a fuel piping to the nozzle when fuel is stopped and preventing the dropping of liquid fuel to a combustion chamber. CONSTITUTION:A three-way valve 7 is changed over to the state in which the fuel tank side and the fuel piping 4 on the nozzle side are each connected to a bypass piping 8 from the state in which the fuel piping 4 is directly coupled by a combustion stop signal. On the other hand, since a fuel pump 1 continues to be operated only for an arbitrarily set time after the combustion stop signal is emitted, liquid fuel is forwarded to a fuel tank through the other bypass piping 8 and the three-way valve 7 on the fuel tank side from the fuel pump through the three-way valve 7 on the nozzle side and the bypass piping 8 connected to the three-way valve 7 from the nozzle 2, and combustion is stopped while the dropping of liquid fuel is prevented. Accordingly, the generation of smoke and the malodor in case of the stoppage of combustion can be prevented.
Patent JP-H04308506-A (JP)
Title: Mildewproofing agent
Inventor: OOHARA MARI
IPC: A01N47/10
Filed: 1991-04-08
Abstract: PURPOSE:To obtain a mildewproofing agent suitable not only for industrial use but also for household use, having volatility at normal temperature, having neither smell nor irritation, exhibiting sufficient mildewproofing effects only by making the agent coexist with an article requiring mildewproofing treatment in the same space. CONSTITUTION:A mildewproofing agent which contains methyl carbamate, preferably a purified product made substantially odorless by proper purification (e.g. distillation or recrystallization), as an actie ingredient, shows strongly midewproofing effects on household and industrial articles (e.g. fiber articles, leather articles, wood articles and foods) in a volatile state and does not have undesirable influence at all on the articles and human body requiring mildewproofing treatment because the active ingredient is colorless and has no irritation. The active ingredient may coexist with the above-mentioned articles or be mixed with a proper carrier or a diluent (e.g. admantane or liquid paraffin) to make into a proper shape (e.g tablet, pill, granule, gel or slurry).
Patent JP-S59201984-A (JP)
Title: Reciprocating compressor
Inventor: OOMURA TADASHI
IPC: F04B39/00
Filed: 1983-04-28
Abstract: PURPOSE:To make a compressor miniature and light-weight, by making eccentric the position of the connecting part, with respect to each piston, of each connecting rod which is engaged with a crank, relatively to the axis of the piston. CONSTITUTION:Of connecting rods 8, 8, the upper connecting rod 8 is rotatably coupled at its front end to a right-side piston 6, upward eccentrically from the axis of the right-side piston 6. Meanwhile the lower connecting rod 8 is coupled at its front end to a left-side piston 6, downward eccentrically from the axis of the left-side piston 6. The positions of the connecting parts 8a, 8b of the connecting rods 8, 8, with respect to the pistons 6, 6, are made eccentric in the directions in which the pistons 6, 6 approach to each other. Accordingly, the distance (1) between the axes of the connecting rods 8, 8 may be restrained to a minimum value which is less than the thickness of the connecting rod 8, thereby the compressor may be miniaturized.
Patent JP-H11257867-A (JP)
Title: Power supply system for vacuum furnace
Inventor: ABIKO KENJI
IPC: F27B14/14
Filed: 1998-03-10
Abstract: PROBLEM TO BE SOLVED: To hold a high vacuum degree in a vacuum tank by eliminating a power loss due to an induced current or the like of an AC current to be supplied from an external power source to an induction heating coil. SOLUTION: In the vacuum furnace, an inner tube 22 and an intermediate tube 23 made of a copper tube and an outer tube 24 made of a stainless steel tube are sequentially coaxially disposed from an inner periphery via predetermined air gaps 25, 26. The tubes 22, 23 are electrically insulated via an insulation gap at both end sides, and the gap 25 is sealed. Then, the tube 22, 23 are connected to both ends of an induction heating coil 21 via a first electrode 29 and a second electrode of an electrode assembly 20. A cooling water flowing oppositely to an axial direction is passed to a hollow part 36 of the tube 22 and the gap 26. The air is sealed in the gap 25. Further, the tubes 22, 23 are fixed to a vacuum tank via a flange 34 of the tank and a cable flange 35 or the like. An outer periphery of the tube 24 is electrolytically polished.
Patent JP-S63245312-A (JP)
Title: Drill
Inventor: KUME KENJI
IPC: B23B51/00
Filed: 1987-03-28
Abstract: PURPOSE:To prevent the occurrence of an exit burr at the passing through edge of a hole, improve the life of a cutting edge and make regrinding possible by forming the drill by specifying a point angle formed by the two cutting edges and brazing a superhigh pressure sintered body on the flank of the cutting edge. CONSTITUTION:A point angle formed by two cutting edges 35 at the tip of a tool body 33 is formed in an angle from 35 deg. to 40 deg., and a drill flank is formed of a superhigh pressure sintered body made of diamond from a chisel part at a tool tip to an end on the outer peripheral side of the tool and to the depth of about 0.7mm from a flank surface, and the above-mentioned superhigh pressure sintered body is fixed on the tool body 33 by brazing. Thus, in this drill 31, the point angle restricted as mentioned above can prevent the occurrence of an exit burr at the passing through edge of hole, and the superhigh pressure sintered body formed on the flank surface can improve the life of the cutting edge 35, and moreover its formation extending over the whole flank surface and having the above-prescribed depth can simplify drill regrinding work, and apply the cutting edge again to a machining process.
Patent JP-H02290486-A (JP)
Title: Manufacture of heat insulating box body
Inventor: YAMAMOTO NORIMASA
IPC: F25D23/08
Filed: 1988-03-28
Abstract: PURPOSE:To enable sharp reduction of the cost of a jig by a method wherein most of a space formed by outer and inner boxes is packed with a free-foaming heat insulating material, and after this heat insulating material is almost set, the residual space is packed with a regulated-foaming heat insulating material. CONSTITUTION:An inner box 1 and an outer box 2a are assembled and a heat insulating material 3a of urethane is injected and foamed in a state wherein a back plate 2b is not fitted. Since foaming is effected in an open space on the occasion, a foaming pressure does not rise almost at all, and a foaming jig is dispensed with when the strength of the outer box 2a and the inner box 1 is large. Even when the strength is small, the back plate 2b is incorporated after the heat insulating material 3a of urethane is set, and a heat insulating material 3b of urethane is foamed in the residual space by using an internal jig 8 and an external jig 9. By this method, foaming jigs can be simplified and the cost of a heat insulating box body can be reduced.
Patent JP-H07255329-A (JP)
Title: Fishing rod
Inventor: OTA MASAKI
IPC: A01K87/00
Filed: 1994-03-22
Abstract: PURPOSE:To obtain a fishing rod capable of simply installing and removing a plug for the fishing rod by a fingertip. CONSTITUTION:This fishing rod is constituted of a plug unit 2 capable of fitting to the tip of a rod butt 1 by elasticity, a regulating unit 3, capable of bringing a tapered part (3a) into contact with a tilted part (2a) formed on the inside of the plug unit 2 and pressurizing and extending the plug unit 2 by rotation, an operating unit 4, capable of screwing a screw part (4c) into a screw part (3b) of the regulating unit 3, rotatably fitting the tip of the rod butt 1 into a fishing rod protecting part (4e), rotating the screw part (4c) by the rotating operation of a knob part (4b), rotating the regulating unit 3, moving the regulating unit in the direction of the upper part of the screw part (4c), extending the plug unit 2 in the radial direction with the regulating unit 3 and securing the plug unit 2 to the inner surface of the rod butt 1 and a friction reducing member 5 capable of reducing the frictional resistance in the rotating operation of the knob part (4b) of the operating unit 4 and smoothing the rotating operation.
Patent JP-H07281460-A (JP)
Title: Electrophotographic photoreceptor for transfer of latent image
Inventor: YANAGISAWA MASAHIRO
IPC: G03G5/02
Filed: 1994-04-14
Abstract: PURPOSE:To obtain an electrophotographic photoreceptor for transfer of latent images excellent in electrification property and sensitivity with high latent image transfer potential by forming the photosensitive layer comprising a specified charge producing pigment and org. acceptor compd. added to a binder. CONSTITUTION:This photoreceptor is produced by directly forming a monolayer org. photosensitive material on a conductive base body or with a base coating layer interposed. This photosensitive layer contains at least a charge producing pigment and org. acceptor compd. expressed by formula dispersed or dissolved in a binder. In formula, R1, R4 are hydrogen atoms, alkyl groups, R2, R3 are hydrogen atoms, alkyl groups, X is at least one group selected from =O, =C(A1)(B1), and =N-R5, wherein each A1, B1 is at least one kind selected from hydrogen atoms, halogen atoms, cyano groups, aromatic groups and -COOR6, R5 is an alkyl group, aromatic group, cyano group, and R6 is an alkyl group or aromatic group.
Patent JP-S60221481-A (JP)
Title: Orienting heat conductive member
Inventor: ENDOU MORINOBU
IPC: D06M101/00
Filed: 1984-04-17
Abstract: PURPOSE:An orienting heat conductive member, obtained by covering a bundle of carbon fibers, grown in the vapor-phase, and having a specific element fiber diameter and remarkably higher heat conductivity in the longitudinal direction than in the direction perpendicular thereto with a low heat conductive material, and having excellent heat conductivity in the axial direction. CONSTITUTION:An orienting heat conductive member obtained by covering a bundle of carbon fibers, grown in the vapor phase, prepared by thermal decomposition of a mixed gas of a hydrocarbon, e.g. benzene, and hydrogen gas in the presence of fine particles, e.g. Fe, at a temperature as high as about 1,000 deg.C by the vapor-phase method, and having 5-20mu, preferably 10+ or -3mu element fiber diameter and remarkably higher heat conductivity in the longitudinal direction than in the direction perpendicular thereto with a low heat conductive material.
Patent JP-S62231948-A (JP)
Title: Display device
Inventor: KISHI ETSURO
IPC: G03B17/20
Filed: 1986-04-02
Abstract: PURPOSE:To obtain a good visibility against all the external light intensity of specifications of a camera, by providing a means for controlling the quantity of light which is made incident on an EL panel. CONSTITUTION:A part of external light luminous flux which is made incident on a photographic lens system 2-5 is split, converted as to its optical path by a sub-mirror 2-7 and led to a photometric sensor 2-4. By receiving external light intensity information by the photometric sensor, a diaphragm operation controlling circuit 2-3 operates, calculates so that the incident light quantity to an EL panel is always suppressed in an area (a) and controls a diaphragm system 2-2, and controls the incident external light quantity. In such a way, together with an incident light which is reflected by a quick return mirror 2-6, and has passed through a focusing screen 2-8, a superimposing display light of the EL panel 2-1 is made incident into a finder through a pentaprism 2-10, and an eyepiece lens 2-9, and the superimposing display is always executed with good visibility.
Patent JP-S59199892-A (JP)
Inventor: SANTEN SVEN
IPC: C10J3/46
Filed: 1984-04-17
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-H09264477-A (JP)
Title: Pipe joint for polyethylene aqueduct pipe
Inventor: YONEDA RYUICHI
IPC: F16L25/00
Filed: 1996-03-29
Abstract: PROBLEM TO BE SOLVED: To assure sufficient strength and improve workability by providing a flange at the first opening of an upper part, a socket at the second opening of a side part and a seal ring on the inner surface of the socket respectively for inserting a short pipe made of polyethylene, and fitting a sleeve to the inner surface of the short pipe. SOLUTION: Openings 18a, 18b and 18c are respectively formed on the upper part, the left side part and the right side part of an approximately T-shaped metal body 16, and a flange 20 is provided at the opening 18a. On the other hand, sockets 24 are formed on the openings 18b and 18c, and two seal rings 28 are fitted at the prescribed interval to the inner surface of each socket 24. In addition, a polyethylene short pipe 32 is inserted in each of the sockets 24, and a sleeve 34 made of metal such as stainless steel is coupled to the inner surface of the short pipe 32. According to this construction, the body 16 is made of metal and sufficient strength can be properly maintained.  Also, the polyethylene short pipe 32 is jointed to the socket 24 as integral part thereof and a polyethylene pipe can be easily jointed to the short pipe 32 via an ordinary joint, when a piping work is executed.
Patent JP-S59201991-A (JP)
Title: Vane compressor
Inventor: SUZUKI SHINICHI
IPC: F04C18/344
Filed: 1983-04-28
Abstract: PURPOSE:To suppress vibration and noise of compressor by setting the volume ratio in the first and second chambers of a vane compressor for performing compression in two regions at the first and second chamber of cylinder. CONSTITUTION:At the upper half circle of a line connecting between cylinder seal positions C1, C2 or in region A (first chamber side 44) the innercircumferential face of cylinder is formed with half oval while at the lower half circle or in region B (second chamber side 46), it will depart from the half oval 62 where the distance between OR and P1 is shorter by P1Q1 than the distance between OR and P2 in the range of theta between 0-90 deg. while the distance between OR and P1 is longer by P1Q1 than the distance between OR and P2 in the range of 90-180 deg.. Consequently the volume ratio of the compression chambers at the first chamber side and second chamber side which is positioned angular symmetrically against the first chamber will be different to shift the starting timing of compression and delivery resulting in reduction of torque fluctuation or delivery pulsation.
Patent JP-H07277837-A (JP)
Title: Ceramic composition and production of ceramic product using the same
Inventor: MIYOSHI RIKA
IPC: C04B35/632
Filed: 1994-04-14
Abstract: PURPOSE:To obtain a ceramic compsn. stabilizing the quality of a ceramic product, not causing defects such as shrinkage cavities or cracks and excellent in mass productivity of products by using a lactic acid oligomer as a binder. CONSTITUTION:About 70-90 pts.wt. ceramic powder is blended with about 10-30 pts. wt. lactic acid oligomer as an org. binder to obtain the objective ceramic compsn. The wt. average mol.wt. Mw of the lactic acid oligomer is preferably within the range of 500-5,000.