baber/WOPTO huggingface dataset:
Patent JP-S5977714-A (JP)
Title: Generator of nonlinear distortion
Inventor: WATANABE SHIYOUJI
IPC: H04B3/06
Filed: 1982-10-26
Abstract: PURPOSE:To adjust independently a phase nonlinear distortion characteristic and an amplitude nonlinear distortion characteristic by connecting a phase nonlinear distortion generating circuit and an amplitude nonlinear distortion generating circuit in series. CONSTITUTION:A signal inputted to a terminal 103 is inputted to a nonlinear distortion generator 19 via a distributor 18. An output of the nonlinear distortion generator 19 is branched into two signals having +theta and -theta of phase angle. They are added at variable attenuators 21, 22 after the amplitude level is adjusted and the sum is further added with a signal giving a delay to the input signal. Thus, a phase nonlinear distortion is generated. This signal is inputted to the amplitude nonlinear distortion generating circuit 17 via the next stage via a characteristic separation circuit (a kind of buffer). The constitution to generate the amplitude nonlinear distortion is the same as the phase nonlinear distortion generating circuit 15 excepting that the output of the nonlinear distortion generator 29 is branched into two signals having 0 deg. and -180 deg. of phase angle.
Patent JP-H0236987-A (JP)
Title: Recording material
Inventor: HAYASHI TAKAYUKI
IPC: B41M5/26
Filed: 1988-07-27
Abstract: PURPOSE:To obtain a recording material with improved color development property by adding an electron-donative achromatic dye, a specific electron- receptive compound and a specific ether derivative. CONSTITUTION:A recording material is manufactured by adding an electron- donative achromatic dye, an electron-receptive compound expressed by formula (I) and an ether derivative expressed by formula (II). Of the substitution groups expressed by X, Y and Z, hydrogen, an alkyl group with 1-8 carbon atoms, an alkoxy group with 1-8 carbon atoms, and alkylthio group with 1-8 carbon atoms, an aryl group with 6-12 carbon atoms and a halogen atom are preferable. The obtained recording material consists of a combination of a specific electron- receptive compound and a specific ether derivative, and therefore, has a remarkably improved color development property.
Patent JP-H0238361-A (JP)
Title: Spalling-substrate chromium-alumina refractory brick
Inventor: SUTANREE AARU PABURIKA
IPC: C04B35/106
Filed: 1988-07-27
Abstract: PURPOSE: To improve thermal impact resistance and slag resistance by compressing a mixture composed of fused chrome-alumina grains, chromic oxide (III), zirconia-contg. grains and alumina and firing this compressed mixture.  
     CONSTITUTION: The mixture is obtd. by mixing (A) the alumina contg. ≥85 wt.% Al 2 O 3 , (B) 15 to 90 wt.% fused chrome-alumina grains consisting of particulates of 70 to 75 vol.% 4-mesh pass coarse grain-components and 325-mesh pass-components for the greater part of the balance and contg. about 75 wt.% Cr 2 O 3 , (C) 5 to 25 wt.% chromic oxide (III), (D) 30 wt.% zirconia-contg. particles (e.g. fused zirconia-alumina) contg. 20 to 45 wt.% ZrO 2  and (E) 2 to 40 wt.% binder (e.g. dextrin). This mixture is then molded by hydraulic compression, mechanical compression, etc. and the molding is fired at ≥2,800°F. 
     COPYRIGHT: (C)1990,JPO
Patent JP-H1130724-A (JP)
Title: Optical transmission path forming method and optical transmission path forming device
Inventor: SHIOTANI TAKEKAZU
IPC: G02B6/13
Filed: 1997-07-14
Abstract: PROBLEM TO BE SOLVED: To make it possible to an optical transmission path of a prescribed shape which has the good efficiency of light transmission and lessens the degradation in the quality by noise with good accuracy by forming the optical transmission path of optical transmission path forming materials existing a fluid state. SOLUTION: An optical transmission path forming material transferring section transfers the optical transmission path forming materials 20a, 20b to a capillary 114. The front end of the capillary 114 is positioned on the light emitting element 3a on an optical and electronic integrated circuit 2a and a servo motor is driven at a prescribed rotating speed to inject the optical transmission path forming materials 20a, 20b in a molten state at a prescribed injection rate from the capillary 114. After the optical transmission path forming materials 20a, 20b are joined to the light emitting element 3a, the front end of the capillary 114 is moved at a prescribed moving speed on a semicircular orbit 40a toward the light transmission end 8a of an optical waveguide while the servo motor is driven.  The driving of the servo motor is then stopped and the optical transmission path forming materials 20a, 20b are pressed to the light transmission end 8a and the are joined to the light transmission end 8a.
Patent JP-S6248026-A (JP)
Title: Semiconductor device
Inventor: SHIYUDO TOSHIAKI
IPC: H01L21/768
Filed: 1985-08-27
Abstract: PURPOSE:To obtain reliable semiconductor device having a passivation film for preventing a crack by forming a slit in the passivation film portion disposed around metal wirings. CONSTITUTION:A slit 12 is formed in a passivation film 10 portion disposed around aluminum wiring 8, 9. According to this configuration, a thermal stress due to the difference of thermal expansion coefficients among an aluminum gate electrode 7, the wirings 8, 9 and the film 10 is generated in the film 10 at sintering time, but since the slit 12 is formed in the film 10 portion disposed around the wiring 8, 9, the stress can be released by the slit 12. As a result, it can prevent the film 10 from cracking to prevent moisture from entering the interior, thereby providing a semiconductor device having no aluminum corrosion nor loss of aluminum and high reliability.
Patent JP-S6081259-A (JP)
Title: Production of cu electrically conductive coating material
Inventor: SHINKAWA SAKAE
IPC: H05K1/09
Filed: 1983-10-11
Abstract: PURPOSE:To obtain a Cu electrically conductive coating material, suitable to printing of lead wires with a fine line width, and having thixotropic properties, by incorporating a thermosetting resin having the reductive property in reaction at ordinary temperature and thermosetting reaction of fine Cu powder in a specific amount. CONSTITUTION:(A) Fine Cu powder is incorporated with (B) a thermosetting resin having reductive property at ordinary temperature and in thermosetting reaction, e.g. URUSHI based resin, and (C) an unsaturated fatty acid and (D) 1.5wt% fine SiO2 powder, e.g. having the surfaces of the respective particles surrounded with hydrophobic molecular groups such as CH3, and having <=50mmu average diameter. EFFECT:Improved moisture resistance of films.
Patent JP-H1022050-A (JP)
Title: Spark plug
Inventor: MATSUTANI WATARU
IPC: H01T13/39
Filed: 1996-06-28
Abstract: PROBLEM TO BE SOLVED: To provide a spark plug that is more excellent in durability by forming its igniting parts from tips made from metals whose melting points are even higher than that of Ir (iridium). SOLUTION: A spark plug 100 includes a center electrode 3, an insulator 2 provided outside the center electrode 3, a main metal fitting 1 provided outside the insulator 2 with the center electrode 3 projected from one end thereof, a grounding electrode 4 coupled to the main metal fitting 1 at one end and opposed to the center electrode 3 at the other, and igniting parts 31, 32 secured to at least either the center electrode 3 or the grounding electrode 4 to form a spark discharge gap(g), the igniting parts 31, 32 being made of tips made from alloys composed chiefly of one or two kinds or more of metals whose melting points are not less than 2500 deg.C, e.g. W (tungsten), Ta (tantalum), Re (rhenium), and Os (osmium). Rh is added to the alloys by a predetermined amount as an oxidation inhibiting metal component.
Patent JP-S5978231-A (JP)
Title: Curing of epoxy resin
Inventor: MIURA MARENORI
IPC: C08G59/50
Filed: 1982-10-27
Abstract: PURPOSE:To cure an epoxy resin within a short time, by curing a polyepoxy compound with N-aminoethylpiperidine in the presence of an alkali (alkaline earth) metal thiocyanate. CONSTITUTION:A polyepoxy compound is cured with N-aminoethyl-piperidine in the presence of an alkali metal thiocyanate or an alkaline earth metal thiocyanate. This thiocyanate is used in an amount of, preferably, 5-20pts.wt. per 100pts.wt. N-aminoethylpiperidine. As the polyepoxy compounds, those having an epoxy equivalent of 165-230 and being liquid at normal temperature (20 deg.C), such as bisphenol A diglycidyl ether or bisphenol F diglycidyl ether are preferred because of ease with which they are mixed with curing agents, fillers, or the like.
Patent JP-H0532656-A (JP)
Title: Decalin-based compound
Inventor: NOMURA KO
IPC: A61P25/28
Filed: 1991-07-29
Abstract: PURPOSE:To obtain a new compound useful as an anti-dementia medicine, having promoting effects on production of nerve growth factor. CONSTITUTION:A compound shown by formula I (R is group shown by formula II or formula III). The compound is obtained by culturing a strain separated from fallen leaves of pineapple manufactured in Okinawa Prefecture, Aspergillus versicolor F-5,015 (FERM P-12,361) in a liquid medium under an aerobic condition. The physical and chemical properties of the compound shown by formula I. Elemental analysis value: C 68.07 H 7.51 (calculated as C31H40O8 by measured value %); molecular weight: 540. Melting point: 135-138 deg.C. Specific rotatory power: [alpha]D 25=75.0 (C=1.0, methanol). Solubility: readily soluble in methanol, ethanol and dimethyl sulfoxide, slightly soluble in acetone, chloroform, ethyl acetate and insoluble in water and n-hexane. Color reaction: positive in iodine, sulfuric acid and 2,4-dinitrophenylhydrazine and negative in ninhydrin. Acidity. Yellow powder.
Patent JP-H1018404-A (JP)
Title: Lift up carrier of gutter cover
Inventor: SAITO IKUO
IPC: E03F7/00
Filed: 1996-06-28
Abstract: PROBLEM TO BE SOLVED: To provide a carrier which is simplified in structure and excellent in handling by providing a clamping rod furnished with an operation section. SOLUTION: There are provided a carrier main body which is furnished with a wheel 11 under a base body 1 and provided with a handle 12 in the rear part of the base body 1 and a receiving plate 3 horizontally provided under pipe posts 42 and 43 provided in the center of the front of the base body of the carrier main body, a clamping section which runs in the pipe posts 42 and 43 and bent in L-shape at an exposed area at the lower part of the posts and a clamping rod provided with an operation section 6 which executes turning, pulling up and locking operations at an exposed area at the upper part of the posts.
Patent JP-H0854543-A (JP)
Title: Optical aligning element
Inventor: KAWAKAMI WATARU
IPC: G02B6/42
Filed: 1994-08-11
Abstract: PURPOSE:To provide an optical aligning element which is capable of relieving the accuracy of the mounting positions of optical input/output waveguides and making correction after adhesion in spite of mispositioning at the time of adhering and connect the optical waveguides having the same width or different widths. CONSTITUTION:This optical aligning element is formed by arranging plural electrodes 10 in alignment on a substrate 12 of liquid crystals increased in refractive index when impressed with voltage and is provided with a means for impressing the voltage on the electrodes 10 corresponding to the regions where light is intended to pass. The optical waveguide which is the same or different width as the width of optical inputting terminal and optical outputting terminal is connected. This optical aligning element is provided with a means which is reset in the direction propergating the light in accordance with the position of optical inputting terminal and the optical outputting terminal.
Patent JP-H0720514-A (JP)
Title: Nonlinear optical material
Inventor: YOKOMICHI TAISUKE
IPC: G02F1/355
Filed: 1993-06-30
Abstract: PURPOSE:To obtain a nonlinear optical material having excellent film forming property and formability and showing high third-order nonlinear susceptibility and nonlinear optical characteristics which is useful as a material for various kinds of optical elements. CONSTITUTION:This nonlinear optical material contains a polymer having a repeating unit expressed by formula in which an azo group as the main chain is bonded with conjugate aromatic rings or conjugate heterorings. This material is useful for various kinds of optical elements such as optical bistable element higher generating elements etc., which uses a third-order harmonic optical effect. In formula, Ar<1> and Ar2 are conjugate aromatic rings such as benzen, naphthalene, etc., or conjugate heterorings such as pyrrole, pyridine, etc., (m) is an integer)1,(n)is 0 or 1, (p) is 0 or an integer >=1, and (q) is an integer >=2. When(n) is 1, (p) is an integer >=1.
Patent JP-H0474232-A (JP)
Title: Multi-task computer
Inventor: HASEGAWA TETSUO
IPC: G06F12/00
Filed: 1990-07-17
Abstract: PURPOSE:To improve the cache hit rate and to shorten the retrieving time by caching the information on each task in a cache means and then reading out the information to apply the arithmetic processing to the information. CONSTITUTION:When an arithmetic unit 5 needs to use a task group file, a controller 4 retrieves a file information table to allocate a new cache device for a task group and transfers the information on the block that uses a disk 1. When the use of a shared file is needed, the necessary information is given to the controller 4. The controller 4 retrieves the file information table and however informs a cache device 3a of the block of a disk to be used owing to a fact that a shared file is used this time. Thus the information is cached in a cache means for each task so that the cache hit rate is improved and the retrieving time is shortened.
Patent JP-H066328-A (JP)
Title: Diversity radio transmission/reception system
Inventor: MIYAMOTO SEIJI
IPC: H04L1/02
Filed: 1992-06-22
Abstract: PURPOSE:To obtain a diversity radio transmission/reception system in which one decoder for error check is enough and an error due to fading or the like is reduced. CONSTITUTION:A coding means applies error check and error correction coding to digital information sent by a transmission means at a transmitter side and plural reception means 5a, 5b at a receiver side demodulate each information received via antennas 4a, 4b. Then received information being a digital series is compared by a comparison means 7 in the unit of bits and an information estimate means 8 generate all information estimated from different bit information, an error detection means 10 detects an error as to all and an optimum information storage means 9 selects a minimum error information series and an error correction means 11 corrects an error in the selected information series.
Patent JP-S6433701-A (JP)
Title: Magnetic disk device
Inventor: ONO YOSHITAKA
IPC: G11B5/09
Filed: 1987-07-30
Abstract: PURPOSE:To simplify a correspondence to evaluation data or a parts change by providing a specific area to be able to execute a recording and a reproducing, when recording and reproducing areas are provided to a magnetic recording medium, besides these normal areas, recording peculiar data concerning a disk device to this specific area, switching and using it. CONSTITUTION:A magnetic disk device is composed of a switching means 11 to the specific area, a medium 12 to have a medium surface besides the number of medium surfaces shown in a specification and data heads 13 and 14 to engage to this. The switching means 11 makes the heads 13 and 14 possible to execute the recording to the medium 12 in the stage of manufacturing and testing the disk device and simultaneously, the peculiar data of the evaluation data, test data or parts specification, etc., are recorded to the medium 12 by a control device not shown in the figure. After that, heads 16 and 17 are abutted to a medium 15 with using the means 11 as usual and the device is checked and shipped. Thus, the information recorded in the manufacturing stage can be kept for a long time and another recording means goes to be unnecessary.
Patent JP-2000021254-A (JP)
Title: Insulator for supporting hot line
Inventor: NAKAATO KOICHIRO
IPC: H01B17/14
Filed: 1998-07-03
Abstract: PROBLEM TO BE SOLVED: To provide an insulator for supporting a hot line capable of surely, safely, and labor-savingly conducting fixing/removing to/from a pole in spite of using an existing robot. SOLUTION: A mounting seat surface 31 of an arc horn 4 is formed on the end surface facing the long direction of a hot line A held in a hot line holding part 2 on the outer surface of a holding fixture 3, and a pair of plane facing to-be interposed parts 32 inclined at an acute angle to the long direction of the hot line A held in the hot line holding part 2 is formed on the outer side of the holding fixture 3.
Patent JP-S5894904-A (JP)
Title: Multi-head type machine tool
Inventor: MITSUI JIROU
IPC: B23B39/16
Filed: 1981-11-27
Abstract: PURPOSE:To improve work efficiency by applying a machining head switching system which partially fixed to a guide way only a head necessary for predetermined machining among the plural number of machining heads. CONSTITUTION:A work 21 is set directly to a machine base 1 or the a X-Y table 20 or a circular table and the like, and machined by means of tools 22, 23 fitted on spindles 8, 9 respectively. When machining by a machining head 6 is completed, a vertically driving plate 14 is raised and the head 6 is slided to be returned to a standby position, while another head 7 is slided to perform machining of the next process and fixed to the vertically driving plate 14, thus machining being started.
Patent JP-H0536699-A (JP)
Title: Single crystal silicon substrate
Inventor: KANAMORI KATSU
IPC: H01L21/322
Filed: 1991-07-30
Abstract: PURPOSE:To remove heavy metal to be mixed during a manufacturing processing from a surface side element forming part and to improve yield of an element by ion implanting in a rear surface of a substrate, then and then forming a silicon carbide layer to become a gettering site by heat treating. CONSTITUTION:A silicon carbide layer 2 to become a gettering site is formed near a rear surface of a silicon substrate 1. That is, a silicon substrate having no processing strain, in which its front surface side is a mirror-finished and a rear surface side is lapped and then etch-finished, is used. Carbon ions are implanted to the entire rear surface of the substrate 1 of 1X10<15>cm<-2> at 180keV of an acceleration voltage, it is heat treated at 1100 deg.C for 4 hours. A peak peculiar to carbide is recognized from an infrared containing spectrum, and a precipitation and a defect generated from a precipitate are confined by an observation of a transmission type electron microscope near the rear surface. An element is manufactured on the substrate to improve yield of the element.
Patent JP-2000020902-A (JP)
Title: Head amplifier circuit and magnetic disk device provided with the same
Inventor: KATSUMATA MAKOTO
IPC: G11B5/00
Filed: 1998-07-03
Abstract: PROBLEM TO BE SOLVED: To restore an MR head, whose pin layer is changed by making a current larger than a bias current to flow through the MR head to an arbitrary direction in a short time. SOLUTION: A fixed bias current made to flow continuously from a first bias current circuit 3 is made to flow through an MR head 2-i by the control of a bias current control circuit 4 to flow to a negative point source or the GRD by a second bias current circuit 8 and a potential difference to be generated at both ends of the MR head 2-i at that time is amplified by a read amplifier 5-i and the D component of the output is amplified by a DC voltage amplifying circuit 7. Then, a current quantity in accordance with the output of the circuit 7, an on/off time of a current, the direction of the current and an MR head are set in a control circuit 11 according to an designation from the outside.  Thus, a current having the current quantity is outputted from a constant current circuit 9, and the current is made to flow through the designated MR head 2-i to the designated direction only for the deginated time by a current control circuit 10.
Patent JP-H0853816-A (JP)
Title: Traffic lane separation sign
Inventor: NAKANO NOBUHITO
IPC: E01F9/627
Filed: 1994-08-11
Abstract: PURPOSE:To make a base and a main body separable from a road surface to remove the base and main body from the road surface to separately replace them in the case they are stained, injured or damage, and to reduce the cost for the replacement. CONSTITUTION:A screw bar 5 provided to the lower end face of a cylindrical main body 3 is made to pass through a through-hole 22 of a soft and elastic base 2 formed in the shape of a flat and truncated cone, and the lower end of the main body 3 is inserted in a recess 21 of the base 2. The screw bar 5 passing through the through-hole 22 of the base 2 is screwed in a screw-hole of an anchor 4 mounted to a road surface in a detachable manner to erect the main body 3 on the road.
Patent JP-S57112736-A (JP)
Title: Camera with protection cover
Inventor: TEZUKA NOBUO
IPC: G03B13/02
Filed: 1980-12-29
Abstract: PURPOSE:To accommodate a finder part in a camera main body to improve the portability of the camera, by moving a lens protection cover from a protection position to a photographic position in accordance with movement of the finder part from a storage position to the photographic position. CONSTITUTION:A lever 25 of a finder part 24 is stopped from rising by a pin 28 of a rotary shaking lever 27 to hold the finder part 24 in a storage position. In case that the finder part 24 is moved to a photographic position, the finder part is pressed in the direction of an arrow C to lower a slope part 25a, and the rotary shaking lever 27 is turned in the counterclockwise direction by the action of a spring 29, and the end face of the pin 28 is brought into contact with the back face of the lever 25. Consequently, the lever 25 stopped from moving by the pin 28 is moved in the direction of an arrow D by the energizing force of a spring 26 and is brought to a photographic preparation position. In accordance with this movement, a link lever 33 is turned round a shaft 32 in the counterclockwise direction to move a protection cover 22 through a pin 23 in the direction of an arrow E up to a photographic position.
Patent JP-H0238207-A (JP)
Title: Method for correcting looseness of chain conveyer
Inventor: OKUYAMA MASASHI
IPC: B65H29/16
Filed: 1988-07-27
Abstract: PURPOSE:To correct opening conditions of a wicket by a method wherein both sprockets of a chain conveyer are replaced with sprockets with gear pitches P1, P2 alternately formed. CONSTITUTION:An axial hole of one of links 3 which are rotatably pivoted on a roller axis 1 and/or the roller 1 are/is worn so that rattling sometimes occurs between the roller axis 1 and the axis hole of the link 3. In this case, the angle of a wicket 7 differs so that the wicket 7 and a painted metal plate 6 collide against each other. In such a case, a sprocket 9 having a uniform pitch P1 is removed and replaced with a sprocket 14 with gear pitches P1, P2 alternately formed where P1<P2, and the sprocket 14 is operated with the gear pitch P1 fitted to a pitch P1 between roller axes of a normal link 2 and with a pitch P2 between roller axes of a lengthened link 3 fitted to P2.