baber/WOPTO huggingface dataset:
Patent JP-H0724480-A (JP)
Title: Method for making poisonous nitrous acid compound in aqueous solution nonpoisonous
Inventor: SHIRAI HIROYOSHI
IPC: C02F1/72
Filed: 1993-07-08
Abstract: PURPOSE:To effectively make the nitrous acid compd. in an aq. soln. nonpoisonous at the time of converting a nitrous acid compd. in the soln. to a nitric acid compd. by bringing a high molecular compd. carrying a metallic complex having an oxidation-reduction potential into contact with the soln. CONSTITUTION:The nitrous acid compd., especially the nitrite nitrogen poisonous to the biosystem, resulting from the excreta of the organism or the feed for the organism is converted to the nitrate nitrogen nonpoisonous to the biosystem in a fish farm, an ornamental fish pond, etc. In this case, a high molecular compd. carrying a metallic complex having an oxidation-reduction potential is brought into contact with an aq. soln. contg. a nitrous acid compd. A metal porphyrin shown by the formula is appropriately used as the metallic complex. In the formula, M is metallic ion selected from Fe, Co, Mn, Ti, V, Ni, Cu, Zn, Mo and and Os, and X is hydrogen or a substituent.
Patent JP-S5958310-A (JP)
Title: Optical fiber gyro
Inventor: OOTA YOSHINORI
IPC: G01C19/72
Filed: 1982-09-28
Abstract: PURPOSE:To constitute easily an optical system by spatially separating the optical path of light outgoing from an optical fiber loop from that of another light incoming into the optical fiber loop and giving a phase bias only to a light wave which advances in one direction. CONSTITUTION:Linear polarized light from a laser 21 is split by a half-mirror 22. One part of the light is condensed by a lens 29 after transmitting through a phase shifter 26 and a polarized beam splitter 23 and injected into an optical fiber 25 through its one entrance end. The other beam split by the half-mirror 22 is condensed by a lens 30 after transmitting through another polarized beam splitter 24 and injected into the optical fiber 25 through another entrance end. The light wave injected by the lens 29 is transmitted through the optical fiber 25 and collimated by the lens 30. A half-mirror 11 interfers with light waves advancing from the polarized beam splitters 23 and 24 and the intensity of the interference light is differentially detected by photodetectors 27 and 28.
Patent JP-2000355958-A (JP)
Title: Installation structure of indicator for construction machine
Inventor: MURAYAMA KOHEI
IPC: E02F9/26
Filed: 1999-06-16
Abstract: PROBLEM TO BE SOLVED: To provide an installation structure of an indicator for construction machines of which the installation angle can be appropriately adjusted so as to make it possible to carry out safe and secure operations by improving visibility of the indicator disposed in a limitted space of a cabin. SOLUTION: A semicylindrical protrusion 25 is laterally formed to be integrated with a lower case 24 at the rear side of the case 24 constituting the indicator 15, and an insertion hole 26 is formed therein. A round hole is formed in a first installation member 17 and a metallic cylindrical collar 27 is welded thereto and an insertion hole 26A is formed in the collar. Further, a cylindrical insertion hole 26B is formed at the bottom of the second installation member 18. Further, insertion holes 26C formed at both sides of a second installation member 18. A fixing bolt 22 is inserted from the lower side of the insertion hole of the first installation member 17. Then, after the indicator 15 is attached to the second installation member 18 so that the insertion holes coincide with each other, the fixing bolt 22A is inserted from the insertion hole 26C.  Meanwhile, a second screw part 31 to be screwed with a first screw part is formed at the tip of the cylindrical collar 27A and a hexagonal nut 32 is welded with its left side.
Patent JP-2001008382-A (JP)
Title: Power supply apparatus for uninterruptible work
Inventor: MATSUKAWA MITSURU
IPC: H02J9/00
Filed: 1999-06-16
Abstract: PROBLEM TO BE SOLVED: To prevent an overvoltage on the DC input side of a power conversion device, based on a reverse charging operation from a system power supply in a linkage state, immediately prior to the start or immediately after the finish of a distribution line construction operation. SOLUTION: A capacitor 18 for power supply, which is installed on the DC input side of an inverter (power converter) 10, is provided. A diode 16 for a charging passage, by which a charging current based on a secondary battery (a DC power supply) 3 is injected into the capacitor 18, is provided. A switching semiconductor 24 for a discharge passage a pair of output terminals of which are connected in opposite parallel manner to both ends of the diode 16, and by which the discharge passage of the overvoltage charging energy of the capacitor 18 is formed by a switching operation, is provided.  A discharge control means, which monitors a voltage or the like across terminals of the capacitor 18, which turns on and off the semiconductor 24 when the voltage across the terminals exceeds a set voltage due to a reverse charging operation from the inverter 10 immediately prior to the start or immediately after the finish of a distribution line construction operation, and which discharges the overvoltage charging energy of the capacitor 18 to the secondary battery 3, is provided.
Patent JP-H1015291-A (JP)
Title: Fully automatic washing machine
Inventor: SANO HIROAKI
IPC: D06F41/00
Filed: 1996-06-28
Abstract: PROBLEM TO BE SOLVED: To provide a fully automatic washing machine which can reduce time required for the rinsing process and can save water. SOLUTION: This washing machine automatically carries out a series of washing processes including water supply, washing, tentative dehydration, rinsing, and final dehydration. The washing/dehydrating basket 4 of the washing machine with a pulsater 5 on the bottom is rotatably installed inside the water tub 2. Only the pulsater 5 is rotated inside the washing/dehydrating basket 4 during the washing and rinsing processes, while the washing/dehydrating basket 4 and the pulsater 5 are simultaneously rotated during the dehydrating process. During the tentative dehydration process after the washing process, the water supply valve 18 is opened and water supply is finished after the dehydration period is over and before the brake is operated to stop the washing/ dehydrating basket 4.
Patent JP-H04366938-A (JP)
Title: Overhead projector
Inventor: NISHIKAWA OSAMU
IPC: G03B21/132
Filed: 1991-06-14
Abstract: PURPOSE:To prevent a projection image from having trapezoidal distortion even when projected on a screen at a position higher than a reflecting mirror so that the image becomes easy to see, and to realize low-cost, simple constitution by shifting the optical axis of a Fresnel lens toward the screen. CONSTITUTION:A light source 5 is provided at the base part of the box of an overhead projector(OHP) main body, an OHP stage 1 is provided on the top surface of the OHP main body, and a projection lens 2 and the angle- adjustable reflecting mirror 3 are formed above the OHP stage 1. The optical axis of the projection lens 2 is shifted from the center of the OHP stage 1 toward the screen 4, the optical axis of the Fresnel lens 6 is further shifted from the center of the OHP stage 1 toward the axis of the screen 4, and the optical axis 7 of the Fresnel lens is provided at the intersection of the line connecting the light source 5 and projection lens 2 and the surface of the Fresnel lens 6 to converge light emitted by the light source 5 on the projection lens 2.
Patent JP-S6230381-A (JP)
Title: Manufacture of field effect transistor
Inventor: SANADA TATSUYUKI
IPC: H01L29/80
Filed: 1985-07-31
Abstract: PURPOSE:To obtain the uniformity of recess etching by opening a window at every wiring portion wired so that the sources or drains of other elements formed on a semiconductor substrate than a monitor element are of the same potential, and then recess-etching. CONSTITUTION:Since the source and drain of each on are common by wiring metal 5, a monitoring current flows to that gathered from the gate width of the respective FETs. In this case, the chemical potential generated in contact with an etchant with the metal 5 is uniform for the FETs since the source and drain electrodes of the FETs are commonly connected, the recess etching amounts become uniform for the FETs, thereby accurately controlling the saturated currents Ids and the pinch-off voltages Vp of the FETs. The thus formed FETs are coupled at gate metals and wiring metals by metal, or individually separated and used as discrete devices. Thus, the chemical potentials at recess etching time become uniform.
Patent JP-H08338990-A (JP)
Title: Display element, its production and liquid crystal display device
Inventor: TANAKA TSUGUJI
IPC: G02F1/13
Filed: 1995-06-12
Abstract: PURPOSE: To maintain uniform distance between a sheetlike low pass filter and a liquid crystal display panel and to obtain a good image by attaching the panel while tension is added on the low pass filter. CONSTITUTION: Plural numbers of positioning pins 7 are arranged in a line on one side of the upper face of a holder 4 which holds a liquid crystal display panel 2. A groove 8 having almost a V-shaped cross section is formed on the side of the upper face of the holder 4 opposite to the side where pins 7 are arranged. A projected line 11 having almost a V-shaped cross section is formed on the lower face of a holder cover 5 which covers sheetlike low pass filter 3 on the holder 4. The sheetlike low pass filter 3 is positioned by inserting pins 7 into engaging holes 10 formed on one end of the filter. After the holder cover 5 is attached, the other end of the sheet-type low pass filter 3 is pressed into the groove 8 by the projected line 11 and tension is applied to the filter 3.
Patent JP-H0334248-A (JP)
Title: Electron beam sensor
Inventor: SHOJI TOSHIO
IPC: H01J37/244
Filed: 1989-06-29
Abstract: PURPOSE:To form an electron beam sensor offering excellent durability and efficiency as compared with fluorescent powder by forming the sensor into a circular truncated one while an Ag metal back coat is applied. CONSTITUTION:An electron beam sensor made up from a mono-crystal oxide, for example, CexY(1-x)AlO3, is formed into a circular truncated cone. In this case, an angle formed by an outgoing surface 1 and a side inclined surface 2 shall be 33 deg., and the whole of the surface of a mono-crystal element in a circular truncated cone shape which is as thin as 2mm for example, is polished to a mirror-like surface so that Ag is applied onto an incident surface 3 and the inclined surface 2 in the form of an Ag metal back coat 4 as thin as 500Angstrom . MgF2 with a specified refraction factor is deposited onto the incident surface of the specimen to the extent as thin as lambda/4 so that loss in refraction is minimized. Applying the metal back coating permits the electron beam sensor to be obtained, which offers excellent durability and emission efficiency as the electron beam sensor while being low in loss in refraction but high in efficiency.
Patent JP-H1116527-A (JP)
Title: Rf electron gun and heating method of its cathode
Inventor: YAMAMOTO MASASHI
IPC: G21K5/04
Filed: 1997-06-25
Abstract: PROBLEM TO BE SOLVED: To simplify the structure near a cathode of an RF electron gun by heating the cathode by laser beams. SOLUTION: The electromagnetic field of a high frequency electromagnetic wave introduced into the resonance cavity 1a of an RF electron gun cavity part 1 is laid in resonant state by the resonance cavity 1a. The electron emitted from a cathode 2 is accelerated in the direction of a central axial line L by the high frequency electromagnetic field laid in the resonant state. The heating of the cathode 2 is performed as follows. A laser beam of a prescribed output is emitted from a laser oscillator 5, converged/deflected by an optical system 6, and emitted to the back surface of the cathode 2 along the central line L through a light transmitting window 4a. In this case, the laser beam can be efficiently absorbed by the cathode 2 by laying the back surface of the cathode 2 in rough state, and the heating can be effectively performed.  Thus, it is not required to provide a means for carrying a current to the cathode or means for emitting electron to the cathode on the RF electron gun body.
Patent JP-S6065942-A (JP)
Title: Planetary gear train for transmission
Inventor: HIRAIWA KAZUMI
IPC: F16H3/66
Filed: 1983-09-16
Abstract: PURPOSE:To obtain a planetary gear train of a transmission having at least seven forwarding gears and further including an overdrive speed-change step by specifying combination of each planetary gear set, in a transmission in which three planetary gear sets are used. CONSTITUTION:This transmission has three poanetary gear sets G1, G2, G3, and the sun gear S1 and the internal gear R1 of the first planetary gear set G1 are connected to an input shaft I through clutches C1, C2 respectively, while its pinion carrier PC1 is connected to both of an internal gear R2 and a sun gear S3. The sun gear S2 of the second planetary gear set G2 is connectable to the sun gear G1 through a clutch C3, while its pinion carrier PC2 is connectable also to the sun gear S1 through a clutch C4 and also connectable to an internal gear R3 through a clutch C5. The pinion carrier PC3 of the third planetary gear set G3 is always connected to an output shaft O, while its sun gear S3 and internal gear R2 are made fixable against a stationary part, by means of brakes B1, B2 respectively.
Patent JP-H1116384-A (JP)
Title: Semiconductor integrated circuit
Inventor: SASAGAWA RYUHEI
IPC: G11C17/18
Filed: 1997-06-26
Abstract: PROBLEM TO BE SOLVED: To suppress a power consumption in a mask ROM construction while the loss of a high speed performance which is caused by the suppression of the power consumption is avoided. SOLUTION: A charge transfer transistor to which a current terminal is connected is provided between a memory cell MC connected to a bit line BL and a sensing amplifier circuit SA and a precharging transistor 3 which precharges the bit line is provided between the junction of the sensing amplifier circuit and the charge transfer transistor 3 and a power supply to precharge the selected bit line only for the suppression of a power consumption. Further, a circuit 2 which pulls down the bit line consistently is provided to reduce a time necessary for a potential drop and improve the reading speed of the sensing amplifier SA.
Patent JP-S6061106-A (JP)
Title: Rolling method of steel sheet with different thickness
Inventor: OGAWA TAKAO
IPC: B21B1/38
Filed: 1983-09-16
Abstract: PURPOSE:To decide accurately the position of a stepped part and to obtain a product with precise length by setting a movable detector to a prescribed position and stopping the rotations of rolls by detecting the rear end of a part having the thicker sheet-thickness of a material to be rolled. CONSTITUTION:A material to be rolled is rolled throughout its whole length so that the material has the thickness equal to that of its thicker part; in the two passes of normal and reverse runnings of successive rollings, the normal rolling is started by setting a roll opening to the thickness of a thin sheet-thickness part. In this case, a detector 5 to be located at the side of material rear end B, is set to the prescribed position from the center line Y-Y of rolls. The rotations of rolling rolls 1, 2 are once stopped at the time when the rear end B is detected by the detector 5 after rolling the material in the normal direction. Then the sheet thickness of the thin-thickness part is rolled into the prescribed thickness and length by continuing the rolling after reversing its rolling direction without changing the setting of roll opening.
Patent JP-H04232323-A (JP)
Title: Improved exhaust pipe for vehicle
Inventor: EUHENIO GAMESU ANGIANO
IPC: F01N3/02
Filed: 1991-02-20
Abstract: PURPOSE: To provide a muffler that is internally provided with a plurality of filters for capturing particulate contaminant included in exhaust gas out of an internal-combustion engine so that exhaust gas is purified effectively. CONSTITUTION: An anterior end section 2 for receiving exhaust gas holds therein parallel purifying plates 8, which capture contaminant of a high density by means of a turbulent flow of gas caused by a funnel 9 in which gas passes. The gas thus purified is forced out of the anterior end section 2 into an inlet part 11 in an intermediate section 3 that leads it toward separate filters 13 and 13' for finishing purifying contaminated gas. This process is promoted by a turbulent flow of air by an air injection that an electric blower 15 produces through a passage. The contaminated gas is in this manner made clean and let out of an outlet part 6.
Patent JP-H11542-A (JP)
Title: Cleaning method of hollow fiber membrane
Inventor: FUJIKI HIROYUKI
IPC: D01F1/08
Filed: 1997-06-12
Abstract: PROBLEM TO BE SOLVED: To efficiently and uniformly remove a reforming agent of a hollow fiber membrane isolated and remaining in the membrane in the production process of the hollow fiber membrane made of a polysulfone resin and the reforming agent and to obtain the hollow fiber membrane in which the number of fine particles which are derived from the resin or the reforming agent and flow into a filtrate is extremely small and the discharging of the fine particles is completed in a short time. SOLUTION: A hollow fiber membrane 5 is produced by spinning the solvent soln. of a polysulfone resin to which a reforming agent is added, through a wet or a wet and dry method and solidifying it in a nonsolvent. The produced membrane 5 is wound round a hollow bobbin 1 with collars 2 in which the both ends have the collars and the winding part is a porous structure and dipped in a cleaning liquid comprising the mixture liquid of water and a common solvent of the polysulfone resin and the reforming agent. The cleaning liquid is supplied under pressure or sucked from the aperture of a bobbin end part to circulate and pass the cleaning liquid through the hollow fiber membrane wound layer parts from the inside to the outside or from the outside to the inside.
Patent JP-2000356247-A (JP)
Title: Structure of having automobile part on board in vibration isolation state
Inventor: TAKUMORI HIROSHI
IPC: F16F15/08
Filed: 1999-06-16
Abstract: PROBLEM TO BE SOLVED: To have parts economically and functionally on board in a vibration isolation state by fitting a part side vibration isolation member to a connection pin of a standing piece at one side of a bracket, positioning one side of the part, dropping a bolt into a press-fitting groove of the other standing piece at the part side through vibration isolation member, screwing a nut, and positioning the other side of the part. SOLUTION: A connection pin 22 mounted on a standing piece 21 at one side of a bracket 2 is inserted into a connection pin receiver 11 at one side of a unit 1 to fix one side of the unit 1. Continuously a bolt 12 at the other side of the unit 1 is dropped into a press-fitting groove 23 of the other standing piece 21 of the bracket 2, and fastened by a nut 13 to fix the unit 1 to the bracket 2. On this occasion, the connection pin receiver 11 it self is made of a material same as that of a bush 4, a vibration isolation member is positioned between the connection pin 22 and the unit 1, further an outer periphery of a mounting part of the bolt 12 to the unit 1 is covered by a bush 4, and the vibration isolation is positioned between the bracket 2 and the unit 1. Whereby the vibration isolating action can be efficiently exercised.
Patent JP-H0520642-A (JP)
Title: Thin-film magnetic head
Inventor: SAGARA SATOYUKI
IPC: G11B5/31
Filed: 1991-07-10
Abstract: PURPOSE:To improve the reliability of bonding without complicating the process for production of the thin-film magnetic head. CONSTITUTION:A 1st insulating layer 2, a 1st tight contact layer 3 consisting of a high melting metallic material, a winding conductor layer 4 consisting of Cu, and a 2nd tight contact layer 5 consisting of the high melting metallic material are successively formed on a substrate 1. After an insulating layer 8 is formed, a contact hole is worked in a part of the insulating layer 8. A diffusion preventive layer 5a which consists of the high melting metallic material and is in common use as the tight contact layer and an Al layer 6 consisting of Al as a bonding pad material are laminated on the exposed winding conductor layer 4.
Patent JP-2000001774-A (JP)
Title: High purity sr(x)bi(y)ta(2)o(5+x+3y/2) sputtering target material
Inventor: SUZUKI SATORU
IPC: C04B35/495
Filed: 1998-06-17
Abstract: PROBLEM TO BE SOLVED: To obtain a target material for forming a thin film in which leak current is reduced and the generation of soft errors is prevented by specifying the total content of Na, K, Mg, Fe, Ni, Co, Cr, Cu and Al and the content of each element of U and Th in a layered perovskite type oxide sintered body composed of specified ratios of Sr, Bi, Ta and O. SOLUTION: In a target material for sputtering composed of a layered perovskite type oxide sintered body expressed by the general formula of SrxBiyTa2O5+x+3y/2 (where 0.7<x<1.2 and 2<y<3), the total content of Na, K, Mg, Fe, Ni, Co, Cr, Cu and Al is adjusted to <=100 ppm, preferably to <=10 ppm, and the content of each element of U and Th is adjusted to <=10 ppb, preferably to <=1 ppb. Moreover, as the starting raw materials of the target, SrCO3 powder, Bi2CO3 powder and Ta2O5 powder in which the contents of the impurities are controlled are used, which are sintered by a hot pressing method or the like and are subjected to HIP treatment to produce the target having >=98% relative density.
Patent JP-H1021576-A (JP)
Title: Optical head device
Inventor: MURATA KOICHI
IPC: G02B5/18
Filed: 1996-06-28
Abstract: PROBLEM TO BE SOLVED: To provide an optical head device able to be industrially produced and having a high light utilization efficiency even to S-wave incident light. SOLUTION: As a diffraction element 4 to be arranged between a light source 1 and an optical recording medium 6, the diffraction element laminating a phase difference element 3 and an optical anisotropy diffraction grating 2 constituted so that a twisted liquid crystal 15 is filled up between a first substrate 12 forming grating shape projecting parts nearly equal to either one between an ordinary light refractive index or an abnormal light refractive index of the liquid crystal on its surface and a flat second substrate 11 is used.
Patent JP-S6149053-A (JP)
Inventor: YAGI KATSUO
IPC: E04C5/07
Filed: 1984-08-16
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-H0519330-A (JP)
Title: Shutter device
Inventor: FUKUDA TSUYOSHI
IPC: G03B9/36
Filed: 1991-07-10
Abstract: PURPOSE:To provide a shutter device which can be inexpensively manufactured in comparison with the conventional device. CONSTITUTION:A part corresponding to a bottom plate 1 and a cover plate 3 is integrally molded by a plastic material in this shutter device. Thus, the working manhour and the assembling manhour thereof can be drastically reduced in comprison with the conventional device. As the result, the shutter device which can be inexpensively manufactured can be assembled.