baber/WOPTO huggingface dataset:
Patent JP-H1179847-A (JP)
Title: Production of silicon carbide sintered compact
Inventor: OOTSUKI MASAMI
IPC: C04B35/571
Filed: 1997-08-27
Abstract: PROBLEM TO BE SOLVED: To provide a method for efficiently producing high-grade silicon carbide sintered compact, having high density and electroconductivity as well as high heat conductivity and useful in fields such as semiconductor industry, electronic information machine industry or the like. SOLUTION: This method for producing a silicon carbide sintered compact comprises a step for sintering a mixture of silicon carbide powder with a nitrogen source and a non-metallic sintering auxiliary at 2,000-2,400 deg.C or comprises a step for producing silicon carbide powder containing nitrogen by baking a solid material, obtained by homogeneously mixing a silicon source containing one or more kinds of liquid silicon compounds with a carbon source containing one or more kinds of liquid organic compounds and a nitrogen source and a polymerizing or crosslinking catalyst, under a non-oxidizing atmosphere and a step sintering a mixture of silicon carbide powder containing nitrogen with a non-metallic sintering auxiliary at 2,000 to 2,400 deg.C and the resultant sintered compact has >=2.9 g/cm<3> density and <=1 Ω.cm volume resistivity and contains >=150 ppm nitrogen.  It is preferable that the nitrogen source is a compound producing nitrogen by heating and the non-metallic sintering auxiliary is a resorcin type phenol.
Patent JP-H1061119-A (JP)
Title: Installing structure and method for greenhouse roof or the like
Inventor: UCHIYAMA HISAKAZU
IPC: E04D3/28
Filed: 1996-08-12
Abstract: PROBLEM TO BE SOLVED: To shorten working time at the construction site of greenhouse roof or the like, where large size glass plates are used, without injuring the advantages of the conventional translucent plate installing structure. SOLUTION: The roof structure of a greenhouse A or the like is provided with a pair of rafters 7 made of a lengthy material arranged in parallel to each other and a frame body 6 composed of a plural number of purlin materials 8 connecting the pair of rafters 7 with prescribed intervals. It is composed of a translucent plate 9 to be fitted to respective gratings of the frame body 6, a means to fasten rafters 7 of the adjoining frame body 6 together, and a rafter cap 11 which is fastened to the rafters 7 by crossing over two rafters to cover up the gap between the rafters of the adjoining frame body 6 and, simultaneously, sandwiches the glass plate 9 of the respective frame bodies 6 to the upper surface of the frame body 6.
Patent JP-S6289359-A (JP)
Title: Thyristor
Inventor: OKAMURA YOSHIO
IPC: H01L29/74
Filed: 1985-10-16
Abstract: PURPOSE:To facilitate the design of circuits with an ample allowance for non- trigger voltage values, by providing a high resistance layer in the upper-face region of a P-type gate layer located under a gate electrode. CONSTITUTION:In a sensitive thyristor comprising a PNPN junction formed by a P-type emitter layer 2, an N-type base layer 1, a P-type gate layer 3 and an N-type emitter layer 4 buried in a part of the P-type gate layer 3, a high resistance layer 5 is provided in the region of the P-type gate layer 3 located below a gate electrode 8. The high resistance layer 5 may be formed by burying a polycrystalline silicon layer in the upper portion of the P-type gate layer 3, for example. This high resistance layer serves to decrease a potential applied to the gate electrode, and therefore the decreased potential is applied to the P-type gate layer. Thereby, the minimum gate trigger voltage can be increased effectively.
Patent JP-H04112516-A (JP)
Title: Semiconductor ceramic capacitor of grain-boundary insulation type
Inventor: IGA ATSUSHI
IPC: H01B3/12
Filed: 1990-08-31
Abstract: PURPOSE:To obtain this capacitor by a method wherein a sintering-promoting additive, a semiconductor-promoting additive and a grain-boundary depletion- layer forming agent, in respectively prescribed quantities, are added to a perovskite-type oxide composed mainly of SrTiO3, this mixture is sintered and a diffusion treatment is executed in an oxidizing atmosphere. CONSTITUTION:The following are added to and mixed with a perovskite-type oxide composed mainly of strontium titanate (SrTiO3): 0.1 to 5.0wt.% of a sintering-promoting additive; 0.05 to 2.0wt.% of a semiconductor-promoting additive Nb2O5; and 0.1 to 5.0wt.% of a grain-boundary depletion-layer forming agent composed of Sr1-x-yBaxCay(Co1/3Ta2/3)O3 (where x<=0.3, y<=0.3 and 0<=x+y<=0.6). This mixture is pressurized and molded. Then, the mixture is baked at 1250 to 1500 deg.C in a reducing atmosphere which contains hydrogen. The surface of its baked substance is coated with a grain-boundary diffusing substance which contains bismuth oxide (Bi2O3). A heat treatment is executed at 850 to 1200 deg.C in an oxidizing atmosphere. Electrodes are formed. Thereby, a large element whose characteristic is good can be obtained.
Patent JP-H0279811-A (JP)
Title: Instrument for measuring scanning characteristic of laser beam
Inventor: HASEYAMA AKIRA
IPC: G02B26/10
Filed: 1988-09-16
Abstract: PURPOSE:To accurately and rapidly measure the scanning linearity of laser beams by detecting the scanning position information of laser in the direction orthogonal to the scanning direction of the laser beams on at least three positions in the scanning direction and measuring the scanning linearity of the laser beams in accordance with respective detected scanning position information. CONSTITUTION:After setting up a scanner unit 17 for measurement on a prescribed position by a jig, mechanical dislocation amounts C1 to C3 generated by the movement of a detecting part 24 are measured in respective detecting points P1 to P3. The values C1 to C3 are inputted as correction data by means of a personal computer 35 and stored in a memory 34. The scanning position information of the laser beams in the rectangular direction to the scanning direction at least on the three positions P1 to P3 in the scanning direction of the laser beams 1 is respectively detected and the scanning linearity of each laser beam is measured in accordance with each detected scanning position information. Consequently, the scanning linearity of a laser beam L reflected by a rotary polygon mirror 12 e.g. and straight scanning the surface to be scanned can be accurately, rapidly and automatically measured in accordance with a practical used product.
Patent JP-H04114031-A (JP)
Title: Lactone polymer and production thereof
Inventor: YASUDA HAJIME
IPC: C08G63/82
Filed: 1990-09-01
Abstract: PURPOSE:To obtain a high-molecular weight polymer of narrow molecular weight distribution in high reaction efficiency by polymerizing a cyclic lactone using an organic rare earth metal compound. CONSTITUTION:The objective lactone polymer can be obtained by polymerizing a cyclic lactone using, as catalyst, an organic rare earth metal compound, an organic lanthanoid metal complex compound of formula I [M is Sc; Y is divalent or trivalent lanthanoid rare earth element; Ah is such that A is of formula II-IV, etc., and h is 2, or is of formula V as the entire Ah; R<3> is alkylene or of formula VI (q is 1-4); B is diethyl ether or tetrahydrofuran; R<1> is H or lower alkyl; R<2> is lower alkyl; m is 0 or 1; n is 0 or 2; k is 1 or 2; p is 0 or 1].
Patent JP-H0894542-A (JP)
Title: Device for detecting defect in surface of galvanized sheet iron
Inventor: KAWABATA YOHEI
IPC: G01N21/892
Filed: 1994-09-28
Abstract: PURPOSE: To enable stably detecting a dent by providing a light receiver at an angle that is greater by a specific angle than the incidence angle of light on a surface to be inspected, and on that side of the normal to the surface to be inspected which is opposite to a light source. CONSTITUTION: An electrogalvanized sheet iron 1 is wound on a conveying roll 3 and inspected at its wound portion to avoid the influence of vibration of an inspected surface. A light source 2 is provided in such a way as to project light at an incidence angle θ of about 30 degrees, and a light receiver 4 is provided at an angle θ+α to the normal to the inspected surface and opposite to the light source. Since a dent has metallic luster, when light is applied the reflected light has strong directivity in a certain direction. In order to stably detect the reflected light, the light receiver 4 is provided at the angle θ+α so as to slightly deviate from the angle 6 that is the direction of regular reflection. The value of α is about 3 to 7 degrees, so that a dent can be stably detected.
Patent JP-H05197206-A (JP)
Title: Improved toner and formation of two-color image
Inventor: EDOWAADO JIEI GATSUTOMAN
IPC: G03G9/097
Filed: 1992-08-31
Abstract: PURPOSE: To provide a toner, a developer and an image forming method which enables formation of a high quality dichromatic image. CONSTITUTION: The toner compsn. contains a resin, a coloring agent, a charge controlling additive comprising a mixture of zinc 3,5-dit-butylsalicylate or aluminum compd. and alkyl pyridinium halide, distearyl dimethylammonlum methylsulfate or distearyl dimethyl ammonium blsulfate, a colloidal silica external additive and a metal salt of fatty acid external additive. A latent image containing high, medium and low potential regions on an image forming member is formed. Then the low potential region is developed with a developer containing the toner and the carrier. The high potential region is developed with a developer containing a second color toner and a carrier. The developed dichromatic image is transferred to a base body and fixed.
Patent JP-H0394926-A (JP)
Title: Hemming machine for automobile door sash
Inventor: MIGI KIYOHIRO
IPC: B21D19/08
Filed: 1989-09-07
Abstract: PURPOSE:To reduce the number of stages and to improve the productivity by providing auxiliary slide cams to hem corner parts and moving them back and forth in the axial directions having corner angles. CONSTITUTION:As soon as an upper die is lowered and the slide cams advance, each main slide cam 2, 3, 4 and auxiliary slide cams 9, 10 are driven by the corresponding drive cams of the upper die and advance at a stroke. The inclined surface parts on the sides of the main slide cams 2-4 and the inclined surface parts on the sides of the auxiliary cams 9, 10 are brought into contact and the formed surfaces on the sides of the main slide cams 2-4 and the auxiliary slide cams 9, 10 are connected and matched with one another as if they are one body. In this way, the hemming can be carried out at one stage, the number of stages can be reduced and the productivity can be improved.
Patent JP-H1157029-A (JP)
Title: Low-frequency medical treatment apparatus
Inventor: KORENAGA TETSUYA
IPC: A61N1/04
Filed: 1997-08-28
Abstract: PROBLEM TO BE SOLVED: To provide a low-frequency medical treatment apparatus of which the using handiness is favorable, and of which the medical treatment effect is improved. SOLUTION: For this low-frequency medical treatment apparatus, a low-frequency electromagnetic wave which is generated by a low-frequency wave oscillator 2 is transmitted to a director 3 which is attached to an affected region, and the low-frequency medical treatment apparatus is equipped with a hot water/water circulator 4 which circulates hot water or water through the inside of the director 3. At the time of usage, the opening of the director 3 is joined to the affected region, and the low-frequency electromagnetic wave which is generated by the low-frequency wave oscillator 2 is cast to the affected region from the electrode surface of the electrode, and a medical treatment for the affected region is performed by the action of the low-frequency electromagnetic wave. At this time, the hot water/water circulator 4 is operated, and hot water/water 12 is circulated through the inside of the director 3.
Patent JP-S60115167-A (JP)
Inventor: JIYOOJI BARII PAAKU
IPC: H01M4/06
Filed: 1984-11-01
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-H05141152-A (JP)
Title: Structure of mounting-section for fixing glass pane
Inventor: HARARUTO SHIYURUTSU
IPC: E06B3/54
Filed: 1991-08-20
Abstract: PURPOSE: To avoid the breaking of the edge of a pane of glass and arrange all glass- pane system, and to facilitate workability by strongly fastening the edge of the pane of glass and mounting the pane of glass and double panels on a facade substructure. CONSTITUTION: The mounting sections are arranged under the edge 4 of a panels of glass 2 of a plurality of panes of glass 2 such as outer wall glass, roof glazing or the like and laminated glass or the like, into which a transparent adhesive wheel, a resin or the like is inserted. The mounting sections are extended at the edges 4 of the corresponding panels of glass 2 up to the insides of the cross sections and the insides of corner sections of the panels 2 of glass. The panes of glass 2 have recessed sections, stepped sections 20, projections or the like on the outside in the lower sections of the edges 4, and engaging sections are formed oppositely onto the surfaces of internal and external curved sections 10, 8 respectively. Seals are disposed at the free end sections of at least the external curved section 8 among the section 8 and the edges 4, and an epoxy adhesive or the like is arranged for bonding with the panes of glass 2. Connecting sections with the edges 4 are reinforced by the external curved section 8 formed in a form lock shape or a tapered shape in a wedge shape towards the terminal region 18 of the panes of glass 2 from the free end.
Patent JP-H0283057-A (JP)
Title: Spray mask with liquid dripping preventive mechanism
Inventor: SASAKI TAMOTSU
IPC: B05B15/04
Filed: 1988-09-19
Abstract: PURPOSE:To prevent liquid from dipping along a spray mask by providing the spray mask with a plurality of sloping grooves on its spray surface and with a guide groove on the end face of a mask opening for carrying off the liquid. CONSTITUTION:A spindle motor 1 drives a disc 3 to be coated to revolve via a spindle 2. A spray nozzle 4 shoots out the fine liquid particles of a lubricant 6 over the surface of a magnetic disc 3 by compressed air 5 for application thereto. A spray mask 7 is provided with an opening for directing a spray from the spray nozzle 4 on the required application area of the disc surface by a specified pattern. When applying the lubricant over the disc surface, the collected liquids on the surface of the mask are caught by a first groove provided in the surface thereof and automatically carried off thereby to the outside instead of being flowing to the mask opening, thereby permitting a substantial reduction in the mask cleaning frequency.
Patent JP-2000140598-A (JP)
Title: Apparatus and method for mixing fluid film
Inventor: SCHEMBRI CAROL T
IPC: B01F33/40
Filed: 1999-08-19
Abstract: PROBLEM TO BE SOLVED: To provide an apparatus capable of satisfactorily mixing a chemical or biochemical fluid which comprises a reaction mixture and is present in the form of a film on a substrate by arranging a first and a second substrate, each having the inner surface, in parallel to each other and forming an airtight chamber between the substrates. SOLUTION: A first substrate 10 and a second substrate 11 are arranged substantially in parallel to each other, and the space between the inner surfaces of these substrates is used as an airtight chamber 16, In the chamber 16, a heat source 13 is installed as a means for forming nuclei of air bubbles in a fluid in contact with the substrates 10, 11, and thus, the fluid is moved and mixed when bubbles are converted into nuclei and scattered, A means for moving air bubbles in the fluid is also installed. The airtight chamber 16 is formed so as to have a thickness lower than 100 μm, and the inner surface 12 is preferably functionalized by reactive moieties, preferably monomer species covalently bonded to the inner surface 12.
Patent JP-H0878681-A (JP)
Title: Manufacture of semiconductor device
Inventor: YAMANAKA KUNIHIRO
IPC: H01L27/092
Filed: 1994-08-31
Abstract: PURPOSE: To see that a semiconductor device hardly causes problem on initial property or reliability even if the contact hole overlaps an element isolation area. CONSTITUTION: A field oxide film 4, diffusion areas 8 and 8a, a gate electrode 6, a sidewall 10 are made on a substrate 2, and then an NSG film 20 is stacked all over the surface, and thereon a BPSG film 22 which reflows at a temperature lower than the NSG film is stacked. Mechanochemical polishing is applied to the BPSG film 22 until the NSG film 20 on an element isolating region is exposed. Then, a contact hole is made in the interlayer insulating films 22 and 20 on the diffusion layer 8, and the sectional form of the aperture brim of the contact hole is smoothed by heat-treating the substrate 2 by RTA method so as to make the BPSG film reflow. At this time, the curvature of the sectional form of the aperture brim of the contact hole becomes larger on the side of the electrode.  Then, the impurities of the same conductivity type as the diffusion layer 8 are implanted into the substrate through the contact hole by rotational oblique ion implantation method.
Patent JP-H0394046-A (JP)
Title: Silicon steel sheet for magnetic shielding and its manufacture
Inventor: OGATA RYUJI
IPC: C22C38/02
Filed: 1989-09-07
Abstract: PURPOSE:To manufacture the silicon steel sheet for magnetic shielding having excellent magnetic permeability by preparing a silicon steel sheet contg. specified ratios of C, Si and solAl and having specified ferrite grain size. CONSTITUTION:A slab having the compsn. of a steel contg., by weight, <=0.02% C, <=0.10% Si, <0.005% solAl and the balance Fe with inevitable impurities is hot-rolled in an austenite area into a steel sheet having t(mm) sheet thickness. Next, the steel sheet is held to the temp. of 850 deg.C to the Ac1 point or below for >=(t/25.4+0.8)hr to coarsen the crystal grains into coarse ones of <=1 ferrite grain size number. In this way, the silicon steel sheet for magnetic shielding having extremely excellent magnetic permeability can easily and surely be manufactured.
Patent JP-H0781583-A (JP)
Title: Automotive steering wheel shaft and production thereof
Inventor: GOTSUTOFURIITO SHIYURENMAA
IPC: B29L31/30
Filed: 1994-09-02
Abstract: PURPOSE: To provide a steering handle shaft by slight manufacturing cost so as to perform relative axial movement of the shaft and a storage pipe in very slight torsion play. CONSTITUTION: Keys 2, 2' which are parts on one side of an insertion connection part formed in the axial direction without interruption in a scope of a storage pipe 1 have excessively small dimension 4 in the curcumferential direction for grooves 3, 3' of parts on the other side, the keys 2, 2' which are parts on one side are provided with a synthetic resin layer 5 made of rubber elastic synthetic resin bridging the excessively small dimension 4, and the synthetic resin layer 5 has larger extension length in the axial direction than a value of the maximum relative movement of a shaft and the storage pipe 1.
Patent JP-H1059693-A (JP)
Title: Lift device
Inventor: FUKUMA HIDEAKI
IPC: B66F7/08
Filed: 1996-08-14
Abstract: PROBLEM TO BE SOLVED: To provide a lift device capable of using an existing activating member and excellent in cost and operability. SOLUTION: A lift link 2 having at least a pair of links 1 is arranged between a base 3 and a workbench 4, one lower side end of the lift link 2 is pivotally fitted to the base 3, and the other side end is movably provided on the base 3 as a free end. One upper side end of the lift link 2 is pivotally fitted to the lower face of the workbench 4, and the other side end is movably provided on the lower face of the workbench 4 as a free end. A recess 5 is formed at the prescribed position on the upper face of the base 3 to receive an activation member 6, and the workbench 4 is lifted when the links 1 are pushed up by the activating member 6.
Patent JP-H05113326-A (JP)
Title: Apparatus for matching inner and outer diameters of worked component
Inventor: ITO YOSHITAKA
IPC: B23P19/00
Filed: 1990-09-04
Abstract: PURPOSE:To minimize a fluctuation in gap sizes by lighting up an indication lamp located at an optimum combination of components by measurement data sent from a computer and obtained from heads for measuring inner and outer diameters. CONSTITUTION:Components 4, 5 whose inner and outer diameters are to be measured respectively are placed in an inner diameter and an outer diameter component housing trays 11, 12, and the respective trays 11, 12 are mounted on a matching indicator 16. Then the components 4, 5 are mounted on an inner diameter and an outer diameter measuring heads 1, 2 respectively to have their inner and outer diameters measured. At this time each measurement data of the components 4, 5 is read from the head 1 or 2 into a control amplifier 3 and sent to a computer 13. The computer 13 rearranges measurement results of the inner and outer diameters from the smallest one, wherein the components 4, 5 are combined according to the order, a gap between each combination of components is calculated, whether or not the gap is within a tolerance is determined, and an indication lamp of the indicator 16 located at the optimum combination of the components 4, 5 is lit.
Patent JP-2001075814-A (JP)
Title: Device and method for compilation
Inventor: KOSEKI SATOSHI
IPC: G06F9/45
Filed: 1999-08-19
Abstract: PROBLEM TO BE SOLVED: To effectively optimize an object code in the range satisfying limitation caused by the number of physical registers of a processor. SOLUTION: This compiler device performs code generation from a program represented by a DAG(directed acyclic graph) while evaluating the number of used registers and the number of execution cycles and optimizes a code to be generated. That is, the compiler calculates the number of cycles with which each operation can be executed on the DAG and the number of the currently available registers, performs code generation while preceding an operator on an execution path that takes the most time in the DAG in a part where the number of registers is sufficient, and performs code generation while preceding such an operator as to reduce the number of used registers when the number of registers is not sufficient.
Patent JP-2000068011-A (JP)
Title: Zero insertion force type electrical connector
Inventor: SAKAMOTO KATSUHIKO
IPC: H01R24/00
Filed: 1998-08-19
Abstract: PROBLEM TO BE SOLVED: To provide an electrical connector which can yield wiping effect with an easy connecting operation and which has a comparatively simple structure. SOLUTION: A connector 20 has contacts 50a, 50b which have male contact parts 51a, 51b, and a connector 30 has contacts 60a, 60b which have flexible arms 68a, 68b and contact parts 64a, 64b at their tips. The contacts 60a, 60b are made slidable in the array direction of the contacts 60, i.e., in the length direction of a housing 31 by a driving means. When the contacts 60 are displaced relatively by the driving means, the contact parts 64a, 64b electrically connected with the contact part 51a, 51b while being wiped thereby.