baber/WOPTO huggingface dataset:
Patent JP-2001130457-A (JP)
Title: Sideslip preventer for crawler travel device
Inventor: ISHIDA TOMOAKI
IPC: B62D55/14
Filed: 1999-11-05
Abstract: PROBLEM TO BE SOLVED: To provide a crawler travel device that can prevent a sideslip of its crawler belt via a simple structure. SOLUTION: The crawler travel device is so designed that the foremost and backmost tread track rollers 2 and 4 are middle track rollers sandwiched between right and left projections 8 formed on the internal surface of a crawler belt 7, and that the other tread track rollers 3 and 13 are outer track rollers that hold only either of the right and left projections 8 in stagger fashion.
Patent JP-H11149007-A (JP)
Title: Manufacture of optical element
Inventor: MIURA MICHIO
IPC: G02B3/08
Filed: 1997-11-17
Abstract: PROBLEM TO BE SOLVED: To provide a binary optical element having a staircase shape more approximate to an ideal curve by forming plural stages of stairs by anisotropic etching on the front surface of a substrate and rounding the angles of these stairs by isotropic etching. SOLUTION: The front surface of a quartz substrate is washed and a metallic film 11 of, for example, titanium, is formed by vapor deposition so as to uniformly cover the front surface. A resist film 12 is patterned on the titanium film 11. The parts devoid of the resist film 12 are etched by executing anisotropic reactive ion etching(RIE) using gaseous CF4 . Next, the titanium film 11 is deposited by evaporation on the substrate surface. Further, the patterning of the resist film 12 is executed. The anisotropic RIE is thereafter executed by using the gaseous CF4 . If the remaining resist film 12 and titanium film 11 are removed, the outside diameter surface having three steps of differences in level are formed. The etching of the substrate surface is executed by the isotropic RIE. As a result, the surface of the staircase shape having roundness is formed.
Patent JP-H08144028-A (JP)
Title: Low frictional composite material for sliding member
Inventor: KITA HIDENORI
IPC: C22C33/02
Filed: 1994-11-25
Abstract: PURPOSE: To obtain a low frictional composite material ensuring a low coefft. of friction at the time of sliding, having chemical stability to lubricating oil and resistant to wear even after use over a long time. CONSTITUTION: This low frictional composite material contains <=17.5wt.% iron oxide such as FeO or Fe3 O4 in the Fe-contg. matrix phase. Since a detergent component in lubricating oil does not stick to the surface of this material because of the contained iron oxide, the formation of an oil film on the surface of this material is not blocked and the coefft. of friction at the time of sliding can be made very low.
Patent JP-H11289003-A (JP)
Title: Vacuum chuck for semiconductor wafer coating chemical vapor deposition silicon carbide film on sintered silicon carbide substrate
Inventor: INOUE KAZUO
IPC: C04B35/565
Filed: 1998-11-06
Abstract: PROBLEM TO BE SOLVED: To improve an abrasion resistive property, prevent occurrence of static electricity in a part contacted with an object to be held, and suppress adhesion of dust. SOLUTION: The vacuum chuck holder in a device for transporting and holding a semiconductor wafer has a part to be contacted with an object to be held. The contacted part has a sintered silicon carbide substrate and a chemical vapor deposition silicon carbide film is coated thereon. The chemical vapor deposition silicon carbide film has a ratio between a Miller indices indication (220) face orientation crystalline structure component and other face orientation crystalline structure component in X-ray diffraction intensity, of 32 times or more.
Patent JP-2000122279-A (JP)
Title: Photopolymerizable composition and photopolymerizable image forming material
Inventor: HINO ETSUKO
IPC: G03F7/09
Filed: 1998-11-06
Abstract: PROBLEM TO BE SOLVED: To obtain a photopolymerizable composition which exhibits high sensitivity to light of 300-600 nm wavelength, maintains high sensitivity even when a color material is added at a high concentration and forms a high quality photoset image free from a surface stain. SOLUTION: The photopolymerizable composition contains an addition polymerizable compound having at least one ethylenic double bond, a photopolymerization initiation system containing at least a titanocene compound as a radical activator and at least one compound selected from among an aliphatic amino acid ester, an aliphatic amino acid amide and their derivatives.
Patent JP-H04188717-A (JP)
Title: Diamond substrate and manufacture thereof
Inventor: TOMIKAWA TADASHI
IPC: C30B29/04
Filed: 1990-11-22
Abstract: PURPOSE:To provide a smooth diamond substrate required for heat sink application and semiconductor device formation, etc., by providing a cubic crystal boron nitride layer on a silicon substrate as an intermediate layer and further a diamond layer on the upper layer of said cubic nitrided boron layer. CONSTITUTION:A smooth cubic crystal boron nitride layer is provided on a silicon substrate as an intermediate layer, on which a smooth diamond layer is grown. The smooth diamond layer means that the surface roughness thereof is about 1000Angstrom  or less in Rmax by measurement with a surface roughness meter. The smooth diamond layer is thus considered that it comprises a single crystal or polycrystal including single crystal and twin. In those crystals, the single crystal, particularly the single crystal including reduced twin is preferable. Hereby, there is ensured a smooth diamond substrate or a single crystal diamond substrate of a greater area required for heat application and semiconductor device deformation, etc.
Patent JP-H07145675-A (JP)
Title: All-weather skiing ground
Inventor: EGUCHI MASAAKI
IPC: E04H3/14
Filed: 1993-11-22
Abstract: PURPOSE:To open and shut roofs installed above a skiing slope speedily and smoothly. CONSTITUTION:Opening/shutting roofs 10 are installed above a slope in a skiing ground in a mountain district. Fixed roofs 12, 12 are installed to the top and the tail of the surface on the slope and a plurality of movable roofs 14, 14... are installed in between. Dimensions in the width and the length for the fixed roofs 12 and the movable roofs 14 can be determined optionally in accordance with the scale of the slope, and the length in the longitudinal direction of the skiing course can be adjusted by increase and decrease of the number of movable roofs 14 to be installed. The movable roofs 14 are laid over rails 20 with wheels (not mentioned in the attached figure) so that they can cover the slope. The movale roofs 14 are moved over the rails 20, being drawn by such means as winches and wire ropes, while the fixed roofs 12 are fixed immovably.
Patent JP-H01203956-A (JP)
Title: Sensor for gas detection by exothermic catalytic reaction
Inventor: FURANTSU NUSHIERAA
IPC: G01N27/16
Filed: 1988-12-14
Abstract: PURPOSE: To prolong the service life of a catalyst layer by providing an inactiva tion layer on the surface of a semiconductor device and providing a catalyst layer thereon thereby avoiding diffusion of H<+> to a semiconductor in measuring a gas containing hydrogen. CONSTITUTION: A semiconductor device 1 is suspended in the cavity 31 of a substrate 3 by means of an inactivation layer 2 of SiO2 , for example. It is insulated thermally and electrically and stable mechanically. The inactivation layer 2 is followed by a catalyst layer 4 and touches the semiconductor device 1 in a hole 7. The catalyst layer 4 is conductive and composed of palladium, for example, by 100-150mm thick. Since the catalyst layer 4 touches the semiconductor device 1 only in the region of hole 7, diffusion of H<+> from the catalyst to semiconductor is substantially impossible. Furthermore, a stripe-shaped catalyst layer 4 may be employed so that the cross-section does not increase even if the thickness is increased.  According to the structure, diffusion of H<+> to semiconductor is avoided at the time of measuring a gas containing hydrogen and the service life of catalyst layer is prolonged.
Patent JP-H09133503-A (JP)
Title: Cloth sizing reel
Inventor: SATOU GOUJIROU
IPC: D06H3/10
Filed: 1995-11-09
Abstract: PROBLEM TO BE SOLVED: To obtain an assembly structure which enables use for cloth materials with various diameters of cores from thin rolls to thick rolls, and with various dimensions of width in common, winding without causing torsion, etc., installation of a device in a small space, and which is convenient for storage and maintenance and carrying. SOLUTION: A base board 1 and a top board 3 are fixed to the top and bottom of a column 2, respectively, and, to one sides of the base board 1 and the top board 3, a roll mount-base 4 with a conical core receiver, pressed to the tip with a spring, and an upper roll receiver 5 with a conical core receiver, pressed to the tip with a spring are provided, respectively, for holding a core of a cloth material between both the conical core receivers, so that the cloth material is mounted on a roll receiving board 15 attached to the roll mount-base 4. And, to the other sides, the roll mount-base 4 and a winding handle 6 are respectively provided for holding a winding core, and a scale which is allowed to be pressurized to contact to the column 2 is attached, for winding the cloth material passing the scale 7 with the winding handle 6 while it is measured.
Patent JP-H07145826-A (JP)
Title: Pressure oil supply and exhaust system for hydraulic shaft coupling
Inventor: NAKAMURA MASAKUNI
IPC: F16D48/00
Filed: 1993-11-22
Abstract: PURPOSE:To prevent the breakage of a hydraulic shaft coupling by sealing pressure oil supplied to the hydraulic shaft coupling with a check valve mechanism and by detecting the residual oil pressure when the pressure oil is exhausted with an open mechanism. CONSTITUTION:Pressure oil supplied to a hydraulic shaft coupling is sealed with check valve mechanisms 37, 40. The check valve mechanisms 37, 40 are compulsorily opened with open mechanisms 46, 54 to exhaust the pressure oil. When the residual oil pressure is below a specified value, oil pressure applied to a piston 208 of a pressure detecting part 202 becomes lower than energizing force, and the piston 208 moves. Contact type or non-contact type sensors S1, S2 detect the move by a detecting piece 211 connected to the piston 208 and spindle shafts 1, 2 can be drawn out from the hydraulic shaft coupling. When the residual oil pressure exceeds a specified value, oil pressure to the piston 208 of the pressure detecting part 202 becomes higher than energizing force, and the detecting piece 211 does not move. Since the sensors S1, S2 does not detect any move, that is judged as abnormality, and drawing out of the spindle shafts 1, 2 is stopped to wait inspection.
Patent JP-2000143465-A (JP)
Title: Hair dye composition
Inventor: NOGUCHI MUTSUMI
IPC: A61K8/00
Filed: 1998-11-06
Abstract: PROBLEM TO BE SOLVED: To obtain a hair dye composition excellent in hair dyeing performance, stability on production and storage, and convenience as well. SOLUTION: This hair dye composition contains such a compound that an oxidative dye is included in a hydroxypropyl group-contg. cyclodextrin derivative; wherein the quantity of the hydroxypropyl group-contg. cyclodextrin to be formulated is normally 2.0-75.0 wt.% in this composition, being pref. 5.0-60.0 wt.% in view of the stability of the oxidative dye.
Patent JP-H09162977-A (JP)
Title: Test system for emergency notice line
Inventor: SAJIKAWA YASUYUKI
IPC: G08B29/06
Filed: 1995-12-05
Abstract: PROBLEM TO BE SOLVED: To automatize the test of an urgent notice line, to reduce the burden of a person in change and to improve work efficiency on the test system of an emergency notice line in an emergency notice system where the center of a firehouse and the police is connected with the exchange of a public network with the emergency notice line and the center is connected with respective firehouses/police boxes with command lines. SOLUTION: An automatic line test device 32 connected to the subscriber line of the exchange in the public network 1 is provided for the firehouse/police boxe. The device is called by starting and the dialing of and emergency notice is generated. When and emergency notice reception trunk 25 to which the urgent notice line 4 of the center 2 is connected responds to an incoming call, and a ring back tone is generated. When the automatic line test device 32 receives the ring back tone, it transmits the tone of the line test request and the emergency notice reception trunk 25 recognizes the call by the transmission/reception of the tone with the automatic line test device 32 for recognizing the call by detecting the tone of the line test request.
Patent JP-H07167460-A (JP)
Title: Air conditioning method for perimeter zone, and air conditioning device to perform same method
Inventor: TOKUDA KENICHI
IPC: F24F13/32
Filed: 1993-12-16
Abstract: PURPOSE:To form an air curtain without using an air conditioning device exclusively for a perimeter zone, and at the same time, improve the temperature environment of the perimeter zone. CONSTITUTION:An indoor unit 38 which is set in a perimeter zone 36 draws air in a room from a suction port 40 and blows up the air from a air outlet 41. Then, the air is discharged from an air discharge duct 39 together with an outside air load. At that time, primary air for an interior zone 31, which is sent out of a branching duct 44, is fed on the downstream side of a fan 43 in an air passage 42. Thus, air which is more than the air drawn from the suction port 40 of the indoor unit 38 is blown out of the air outlet 41, and an air curtain is formed between the air outlet 41 and air discharge port 39. Also, a load (the primary air for the interior zone 31) which stands against the outside air load is added to a circulating flow which circulates between the air outlet 41 and suction port 40 by taking in an outside load, and by doing this, the temperature environment of the perimeter zone 36 is improved.
Patent JP-H05242149-A (JP)
Title: Database keyword indexing method and database retrieval index structure
Inventor: BIKUTAA EI BERII
IPC: G06F17/30
Filed: 1992-10-31
Abstract: PURPOSE: To provide a method for storing and retrieving data in a mass storage medium. CONSTITUTION: A keyword dictionary inside a data file is edited and a single ID number is assigned to respective keywords. The plural keywords which are generated most frequently are assigned to the opposite ID number where the frequency of keyword generation is min. The keyword dictionary is classified into plural classes and the class of the keywords with min. generation frequency in a database is provided with max. information quantity concerning the correct position of the keyword inside a min. index label and the data file.
Patent JP-H11130303-A (JP)
Title: Roll of sheet and its holder
Inventor: YOSHIHARA SEISHIRO
IPC: B65H23/08
Filed: 1997-10-30
Abstract: PROBLEM TO BE SOLVED: To provide a roll of sheets and a holder for it, which can be easily used, and which is inexpensive, has high performance, and can be used for cleaning or packaging. SOLUTION: A roll of sheets 2, which is formed by winding the sheet around a cylinder-core member 1 in the form of a roll of toilet paper, has a plurality of pairs of flaws 3, and the sheets are adhered after winding work by an adhesive, which has such stickiness as the sheets including the flaws 3 can be adhered a plurality of times and as the sheets can be easily torn from each other. Preferably, the inner surface of the cylinder-core member 1 is supported by a canti-lever supporting shaft, which has a maximum diameter part so as to generate friction between the shaft and the inner surface, in such a state as the middle part in length of the cylinder-core member 1 is positioned between the maximum diameter part and the canti-lever supporting part. One end of a coil spring is inserted into a cylindrical shaft member, and the spring is fixed. The other end is fixed at a fixing part so that the spring force of the coil spring acts on the unwinding part of the sheet. Thus, the sheet can be easily cut by one hand.
Patent JP-H07179309-A (JP)
Title: Preparation of 3-isothiazolon composition
Inventor: HORUSUTO OTSUTOO BEIYAA
IPC: A61K31/41
Filed: 1994-12-20
Abstract: PURPOSE: To produce a stabilized biocidal and water-soluble 3-isothiazolone composition substantially free from nitrosamine impurity and nitrosamine precursor material. CONSTITUTION: This method for producing 3-isothiazolone composition comprises a step for forming 3-isothiazolone by amidating a mixture of dimethyl-3,3'- dithiodipropionate with methyl-3-mercaptanepropionate (a nucleophilic scavenger) to provide an intermediate amide, and cyclizing the intermediate amide with a chlorinating agent, a step for adding a metal nitrate as a stabilizer to the formed 3-isothiazolone to provide the objective 3-isothiazolone composition containing 5-chloro-2-methyl-4-isothiazolin-3-one as an active ingredient.
Patent JP-H09160903-A (JP)
Title: Method for estimating physical quantity distribution
Inventor: YODA KIYOSHI
IPC: G06Q10/04
Filed: 1995-12-05
Abstract: PROBLEM TO BE SOLVED: To obtain a physical quantity distribution estimating method by which the calculating time for a matrix equation can be remarkably shortened and the physical quantity distribution can be estimated at a high speed by converting a close matrix into a non-dense matrix in which many zero elements are included by a wavelet conversion processing and solving the matrix equation. SOLUTION: An imparted governing equation is converted into a boundary integral equation (ST2), the boundary integral equation is converted into a digitizing equation (ST3), the digitizing equation is converted into a matrix equation A.x=b (ST4), a wavelet conversion is performed for the obtained matrix equation A.x=b (ST4), the converted matrix equation At .xt =bt is approximately solved by substituting zero for the matrix element whose absolute value is threshold or below in the matrix At , (ST6) approximate physical quantity distribution x* is determined by performing a wavelet inverse conversion for the approximate solution xt (ST7) and the correction of the approximate physical quantity distribution x* is performed by the repeated calculation (ST8).
Patent JP-H04188511-A (JP)
Title: Oxide superconducting wire and manufacture thereof
Inventor: NAKAYAMA SHIGEO
IPC: H01B12/10
Filed: 1990-11-21
Abstract: PURPOSE:To maintain and show always a state of a relatively high critical current density Jc by covering aluminum dispersion strengthened copper layer on an external surface of a Ag matrix or a Ag strengthened matrix. CONSTITUTION:A Ag matrix 1 or a Ag strengthened matrix, a oxide superconductor 2 which are provided as multiple cores separated between each other in the matrix 1 to extend along the axial direction, and an aluminum dispersion strengthened copper layer 3 provided with oxygen gas provision holes for covering outer surface of the line-shaped matrix 1, are composed. By composite effect due to softening of the Ag matrix by heat treatment and the aluminum dispersion strengthened copper layer 3 maintaining relatively high strength, external weighting is dispersed effectively and strength is up as a result. Accordingly, influence of an electromagnetic stress (hoop force) of a magnet is largely reduced and degradation of a critical current density Jc is also suppressed.
Patent JP-2000198805-A (JP)
Title: Water-absorbing complex and its production
Inventor: TSUCHIYA HIROYOSHI
IPC: C08F2/44
Filed: 1999-11-08
Abstract: PROBLEM TO BE SOLVED: To provide a water-absorbing complex that has excellent water absorption and high water absorption rate, with almost all part of the high water- absorption polymer stably fixed to the fibrous base material and shows excellent fixation of the swollen gel after water absorption. SOLUTION: This water absorption complex is prepared by fixing the particles of water-absorption polymer to the fibrous base material. In this case, at least a part of the water absorption polymer particles comprises primary particles with an average particle size of 50-1,000 μm, more than 30 wt.% of the primary particles bind with each other, as they retain almost their shapes and is constituted with the coagulation particles having the shapes satisfying the following conditions and a part of the constituting particles are adhered to the fibrous base material: The average particle size (D): 100<=D<=3,000 μm; The declination angle according to the declination analysis (θ): 10<=θ<=25; 5 Hz/20 Hz intensity rate in the frequency analysis; 0.6<=k<=0.9; the rate of the major axis (L) to the minor axis (l): 1.2<=L/l<=15.0.
Patent JP-H01158105-A (JP)
Title: Swing gate
Inventor: HARAGUCHI SHUNZO
IPC: E02B7/40
Filed: 1987-12-15
Abstract: PURPOSE:To miniaturize a gate-opening and closing driver by a method in which one end of a swing gate is rotatably attached to a levee, and a side thruster for opening or closing the gate in a normally or reversely turning manner is set on the submerged portion of the other end. CONSTITUTION:In a swing gate 1 for breaking waves, one side of the gate 1 is pivotally attached to the bearing part 3 of the structure 2 such as levee through a bracket 4 in a horizontally rocking manner. The other side of the gate 1 is positioned on opened side and provided with a side thruster 5. The thruster 5 is turned normally or reversely to open or close the gate 1. The swing gate having small-size automatic opening and closing device can thus be obtained.
Patent JP-H07204662-A (JP)
Title: Control method for detoxication of aqueous solution containing cyanide and/or unstable heavy metal cyano-complex
Inventor: FUUBERUTO BUORUFU
IPC: C02F9/00
Filed: 1994-12-20
Abstract: PURPOSE: To produce good detoxification results using the least amts. of formaldehyde and hydrogen peroxide by detoxifying cyanidic waste water using formaldehyde and hydrogen peroxide.  
     CONSTITUTION: In a 1st step a source for formaldehyde is continuously or periodically added to an aq. soln. to be treated at a pH value in the range of 8.5-12, particularly 9.5-10.5 and free and liberated cyanides are converted into glycolnitrile. The pH value is kept substantially constant by adding an acid as a pH adjusting agent and the addition of formaldehyde is finished at the time when more pH change does not occur. In a 2nd step a source for hydrogen peroxide is continuously or periodically added at a pH value in the range of 8.5-12, particularly 9.5-10.5 and the glycolnitrile is perhydrolyzed. The oxidation- reduction potential is measured and the addition of hydrogen peroxide is finished at the time when the potential does not further rise at the pH value kept constant. 
     COPYRIGHT: (C)1995,JPO
Patent JP-H05131334-A (JP)
Title: Work positioning device for bending machine
Inventor: KURODA YOSHIAKI
IPC: B21D5/02
Filed: 1991-11-06
Abstract: PURPOSE:To provide a positioning device for a bending machine by which bending can be processed accurately even by means of handling by an industrial robot. CONSTITUTION:A visual sensor 13 detecting both the ends of a work 6 is provided for a back-stop 12 positioning the work 6 for bending. And the dislocation of the work 6 is detected based on both a position signal detected by the visual sensor 13 and the position of an upper mold 9 stored in advance, and displacement between the work 6 and the upper mold 9 is concurrently constituted to be corrected with an industrial robot 2 controlled, which handles the work 6 based on information obtained on displacement. In this case, since bending can be processed with the position corrected even if the work 6 is dislocated when the work 6 is passed from one hand to the other, accuracy in processing can thereby be enhanced.