baber/WOPTO huggingface dataset:
Patent JP-H04319811-A (JP)
Title: Chopper type comparator
Inventor: FURUYA EIKI
IPC: H03K5/08
Filed: 1991-04-19
Abstract: PURPOSE:To prevent the occurrence of an offset error by absorbing the fluctuation of voltage caused at an operating point of an inverter with a 2nd capacitor put between a ground terminal and an input terminal of the inverter forming an AC coupled amplifier. CONSTITUTION:An AC coupled amplifier 10 contains a switch 5 connected between the input and output terminals of an inverter 1 and a capacitor 2 connected to the input terminal of the inverter 1. The switches 3 and 4 are connected in parallel to the input terminal of the amplifier 10. Then a capcitor 9 is provided betwene the input terminal of the inverter 1 and a GND terminal. The capacitor 9 applies the change of a ground potential also to the input voltage of the inverter 1 even though the operating point of the inverter 1 varies by the fluctuation of the erath potential. Thus the influence of the fluctuation of the ground potential caused by the change of input voltage of the inverter 1 can be eliminated. That is, the capacitor 9 absorbes the voltage fluctuation that is caused by the fluctuation of the ground potential at the operating point of the inverter 1.
Patent JP-S5423908-A (JP)
Title: Vibration-proof for brush in rotary equipment
Inventor: KODAMA AKIO
IPC: H02K5/14
Filed: 1977-07-22
Abstract: PURPOSE: To prevent a vibration generated from sliding brush, with an aging reduced as well, by such means that to a plurality of fixed groove part, provided in a brush holder substance, be additionally installed a plurality of vibration resistant material, made of elastic unit, with one end embedded to be fixed and another end made attaching to the brush. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S6437935-A (JP)
Title: Measuring sensor for polarography/amperometry measurement
Inventor: BUARUTAA AASUBAASU
IPC: A61B5/1477
Filed: 1988-04-08
Abstract: PURPOSE: To prevent a generating effect interfering with measurement by providing an external electric connection between a noble metal ring of positive electrode and an Ag/AgCl reference. CONSTITUTION: A pH electrode 5 provide for measuring CO2 concentration is surrounded by an annular groove acting as electrolyte storing vessel, and a positive electrode 3 is formed of a ring-shaped thin noble metal coating, which surrounds the insulating material of a small-sized negative electrode 1, and electrically separated from an Ag/AgCl reference 2 by an insulating layer 3a. The positive electrode is conduced to the end part of a PO2 /POC2 measurement sensor separated from a measuring surface by the ring 3 connected as the sheath-like package of the negative electrode axially at a right angle. A groove-shaped dent 4 as electrolyte storing vessel is set in a radially outside position. Thus, the electrolyte storing vessel is enlarged, and the heating area near the negative electrode is extended.
Patent JP-H02267558-A (JP)
Title: Photoresist composition for far ultraviolet light
Inventor: HAYASHI KEIICHI
IPC: C08F2/48
Filed: 1989-04-10
Abstract: PURPOSE:To obtain the photoresist adequate for an exposing with far UV light of <=313nm by using a compsn. contg. a copolymer having the repeating unit expressed by specific formula and a photosensitive agent. CONSTITUTION:The copolymer has the repeating unit expressed by the formula, where R1 denotes H or methyl group; R2 denotes an alkyl group, aralkyl group; R3 denotes H, alkyl group, alkenyl group, aralkyl group, aryl group; m denotes 1 to 6 integer; n1 to n5 denote mol% of respective units; n1=25 to 80; n2=10 to 70, n3=0 to 40; n4=0 to 40; n5=0 to 70. This copolymer is obtd. by bringing prescribed amine and/or alcohol into reaction with, for example, maleic anhydride and styrene. A naphthoquinone diazide compd. is used for the photosensitive agent and dioxane, etc., are used as a solvent. A surfactant, dye, stabilizer and sensitizer are adequately compounded at need with the photosensitive agent. This photoresist compsn. is irradiated with a KrF excimer laser of 248nm in particular. This compsn. allows alkaline development, has high transparency and dry etching resistance and is adequate for production of elements of a very high scale of integration.
Patent JP-S59213131-A (JP)
Title: Manufacture of x-ray exposing mask
Inventor: KAWABUCHI KATSUHIRO
IPC: G03F1/68
Filed: 1983-05-19
Abstract: PURPOSE:To enable to easily and precisely form a mask pattern consisting of X-ray absorbing material having rectangular cross-sectional form by a method wherein a stopper film and a conductive film, which will be turned to the mask when a substrate etching is performed, are formed between the substrate and the X-ray absorbing member to be formed on the substrate. CONSTITUTION:A silicon oxide film 22 and a polycrystalline silicon film 23 are formed on a silicon substrate 21, and a silicon nitride film 24 is formed thereon. Subsequently, resist 25 is rotary coated on the silicon nitride film 24, and a resist pattern is formed by performing an exposure and developing process on the resist 25. Then, an etching is performed on the silicon nitride film 24 using the resist 25 as a mask. Subsequently, after the resist 25 has been removed, metal tangsten 26 is selectively grown, and then a polyimide film 27 is formed on the silicon nitride film 24 and the tungsten 26. Then, an etching is performed from the back side on the center part of the silicon substrate 21 using KOH solution. As said etching comes to a stop on the silicon oxide film 22, the tungsten 26 is not etched at all.
Patent JP-H06103846-A (JP)
Title: Magnetic shield type bushing using composite superconductor
Inventor: INUKAI EIKICHI
IPC: H02K55/00
Filed: 1992-03-12
Abstract: PURPOSE:To provide possibility of embodying the current lead part of a bushing and the magnetic shield part in any desired forms, increasing the mechanical strength of the current lead part to prevent damage even with a high electromagnetic force as in the event of circuit shortcircuiting, suppress heat emission through bypassing of the fed current via a cylindrical vessel even in the quenched condition, facilitate connecting of an external lead to the current lead part, and perform magnetic shield for the current lead part with Meissner effect of the magnetic shield part. CONSTITUTION:The current lead part 6A of a bushing 6 is installed at an apparatus accommodation vessel 2 in which a superconductive magnet 3 is accommodated, and a solidified matter 13 from molten ceramic to become a superconductive substance is inserted in a vessel 12 made of a metal having a high electric conductivity, while the magnetic shield part 6B is formed by inserting solidified matter 16 from molten ceramic in a gap between an outer cylinder 14 and an inner cylinder 15, in which the magnetism given externally is shut off by Meissner effect of the magnetic shield part 6B when current is fed to the current lead part 6A in the condition that the bushing 6 is cooled by liquid nitrogen 20, and the rate of transportation of the current flowing through the current lead part 6A is enhanced.
Patent JP-S57204346-A (JP)
Title: Mechanical snapper
Inventor: NISHIHIRA SHIGEKI
IPC: F16F7/10
Filed: 1981-06-10
Abstract: PURPOSE:To simplify shape of a snapper and obtain its minaturization, by using a ball screw and lock nut mechanism. CONSTITUTION:An upper part 17a of a lock nut housing hole 17 is formed to circular shape of internal diameter enough for permietting rotation of a lock nut fixing groove 17b cut with a similar shaped groove for fixedly fitting the hexagonal lock nut part 22. If large shocking force is axially applied, relative displacement force is generated btween a snapper main unit 1 and movable unit 3. In this case, large friction force is generated between a screw ball 35 and screw shaft 23, and a shaft 2 can not be rotated, then a coil spring 24 is compressed to perform the displacement downward. In this way, the lock nut part 22 is fitted into the groove 17b, and the shaft 2 is suppressed its rotation and downward displacement. In case of application of a static load due to thermal expansion or the like, because the coil spring 24 is not compressed, the shaft 2 is rotated to move the movable part 3 downward.
Patent JP-H02266257-A (JP)
Title: Production of threshold current type oxygen sensor
Inventor: KAJIMA TAKAFUMI
IPC: G01N27/41
Filed: 1989-04-07
Abstract: PURPOSE:To improve the responsiveness of the above sensor and to reduce the size of the construction thereof by coating the surface of electrodes with a film consisting of a heat resistant material which decomposes at a prescribed temp. and forming a film consisting of crystallized glass and ceramics powder so as to coat this film. CONSTITUTION:The electrodes 2, 3 are formed on a solid electrolyte substrate 1 bored with a gas diffusing hole 4 in the central part and a carbon coating film 5 is so formed as to coat the electrode 2. A mixture composed of the crystallized glass and the ceramics powder is applied and printed on the film 5 to form a coated film 6. The carbon evaporates and the vapor thereof is diffused to the outside through the film 6 when the entire part thereof is heated to 900 deg.C. As a result, a space is formed between the electrode and the film 6. Further, the crystallized glass melts to be hermetically joined to the ceramics powder as the temp. rises. The film 6 loses the ventilatability. Sealing glass is printed and applied to enclose the film 6 to form a sealing part 7. The glass is thereafter calcined, by which the sensor element having the hermetic space sealed by the film 6 and the sealing part 7 around the electrode 2 is completed.
Patent JP-H06297166-A (JP)
Title: Laser marking device for metal material
Inventor: MATSUDA HIDEO
IPC: B21B38/00
Filed: 1993-04-15
Abstract: PURPOSE:To perform a marking by a laser beam with weak energy on the surface of a metal material by irradiating the surface with a laser beam by a laser head of after applying paint on the surface. CONSTITUTION:An end face or a side surface which is a surface to be worked of the steel sheet P of a metal material, is irradiated by a laser beam with a laser head. The surface to be worked of the metal material (steel sheet) P is sprayed with paint by a paint spray 2. After spraying paint by the laser head 1, the surface to be worked is irradiated by a laser beam. When the paint sprayed on the metal material by the laser head 1 is half-dried, the paint is irradiated by a laser beam. The color of the paint is to be one whose contrast between the paint and the surface to be worked of the metal material is visually and easily approved. Consequently, the laser marking of characters and symbols, etc., can be performed on the front edge, the rear edge or the side surface of a product made of a metal material.
Patent JP-H0719949-A (JP)
Title: Photodetector and method for generating electric signal that represents interference between optical signals
Inventor: AKUBAA ARABUUSADEHABADEI
IPC: G01J4/00
Filed: 1994-04-26
Abstract: PURPOSE: To prevent signal fading in an optical fiber interference sensor system. CONSTITUTION: A photodetector 22 comprises a polarizer array and an array of photodetector elements, wherein the polarizer array has plural polarizers 38A, 38B, 38C, the respective polarizing axes of which are spaced at a selected angle, and each light signal entering the polarizer array has a polarizing component along at least one of polarizing axes. The photodetector element array is so constructed that each of the photo-detecting elements receives light from one selected from the polarizers. At least one of the photodetector elements receives a parallel polarizing component from the light signal to form an electric signal showing the interference between light signals.
Patent JP-S63253505-A (JP)
Title: Magnetic recorder
Inventor: OKAMOTO TORU
IPC: G11B5/024
Filed: 1987-04-09
Abstract: PURPOSE:To prevent occurrence of noise due to superimposed writing at an erasing starting part and of an unrecorded part at an erasing terminating part, by starting erasing from the track, from which recording is started at the time of commencement of recording, and terminating erasing at the track, at which recording is terminated when the recording is terminated. CONSTITUTION:Upon receiving a recording start command A, a 1st recording control circuit 8 outputs a 1st signal D-REC1 during the period of the vertical synchronizing signal V of video signals to be recorded. When the 1st signal D-REC1 is detected, a 2nd recording control circuit 9 outputs a 2nd signal D-REC2 to oscillation circuits 21, 22...24 simultaneously with the rise of switching signals outputted from a recording head switching circuit 3. When the 2nd signal D-REC2 is outputted, recording currents are supplied to recording heads 51, 52...54. When the circuit 8 receives a recording terminate signal B thereafter, the circuit 8 stops the signal D-REC1 during the period of the vertical synchronizing signal of vide signals being recorded. When the signal D-REC1 disappears, the circuit 9 stops the signal D-REC2 simultaneously with the rise of the switching signals SW1 and, further stops the oscillation of the oscillation circuits 21-24 so as to terminate the recording.
Patent JP-H1050810-A (JP)
Title: Suction device for substrate and aligner
Inventor: AOYAMA MASAAKI
IPC: H01L21/027
Filed: 1997-04-07
Abstract: PROBLEM TO BE SOLVED: To minimize warp generated when a board such as a wafer is sucked, especially warp generated in an adjoining part between a part wherein an effective suction force works and a part wherein it does not work by making distribution of a projection part dense in a periphery of a recessed part of a mounting surface which is opened to an atmospheric pressure. SOLUTION: Circular projection parts 10a to 10g of a structure of a suction device (wafer holder) 1 are formed. A pitch between an outermost circumferential circular projection part 10a and its inner circular projection part 10b and a pitch between the circular projection part 10g in a circumference of an opening part 1a and its outer circular projection part 10f are made 12. A pitch between other adjoining circular projection parts is made 11 and is fixed to satisfy 12/11<1/1.2. That is, in a device for sucking a rear of a wafer W, distribution of a projection part is made dense in a periphery of a recessed part of a mounting surface which is opened to an atmospheric pressure. Thereby, it is possible to suppress and all over amount of warp and deflection generated when the wafer W is sucked by vacuum.
Patent JP-S60231298-A (JP)
Inventor: KATORI KAZUYUKI
IPC: G08B23/00
Filed: 1984-05-02
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-S5423923-A (JP)
Title: Supervisory unit for motor operation
Inventor: EBARA MINORU
IPC: H02P21/18
Filed: 1977-07-26
Abstract: PURPOSE: To correctly supervise an operation, by such means that with a main switch made open and an auxiliary switch, connected in parallel to the main switch, closed, an operational condition be supervised by a level and/or frequency of current flowing in the above. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H07295198-A (JP)
Title: Device and method for forming shadow mask pattern
Inventor: KAWASAKI MASARU
IPC: G03F1/00
Filed: 1994-04-26
Abstract: PURPOSE:To form a hole pattern in a long circle shape in a short time. CONSTITUTION:The shadow mask pattern formation device is equipped with a light source which emits irradiation light for exposure, a long circular reticle 18 which has a long circular aperture, and an optical system. The aperture 17 of the said long circular reticle 18 consists of a couple of opposite semicircular parts and a couple of straight line parts connecting both the semicircular parts. The optical system images light, which is emitted by the light source 15 and passed through the aperture 17, on a photosensitive surface. Here, 1st irradiation operation for imaging the irradiation light on the photosensitive surface, irradiation position changing operation for changing the irradiation position in the length direction of the aperture 17, and 2nd irradiation operation for imaging the irradiation light on the photosensitive surface again are performed.
Patent JP-H03286624-A (JP)
Title: Code transmission method
Inventor: SHIMIZU TETSUYA
IPC: G11B20/18
Filed: 1990-04-02
Abstract: PURPOSE:To suppress the entire low frequency component of a coded series and to transmit a code in an excellent manner by suppressing the low frequency component of an error detection correcting code of plural words itself entirely. CONSTITUTION:An error detection correcting code is added to a main information code and a control code and the resulting code is transmitted, and the circuit constitution roughly consists of a circuit 106 processing the main information code, a control circuit 153, and circuits 213, 313, 413 generating a parity of an external code. The low frequency component of the main information code in an inputted code Di is suppressed by a mapping coding circuit. Then plural data relating to the DC component of an error detection correcting code of plural words are all used to decide the pattern of the control code and a bit pattern for the error detection correcting code of plural words is adjusted.
Patent JP-S61248001-A (JP)
Title: Grating lens
Inventor: MORI KAZUNARI
IPC: G02B5/18
Filed: 1985-04-26
Abstract: PURPOSE:To form an inexpensive grating lens to be easily handled by forming a protection layer having a refractive index larger than that of the grating lens so as to be thicker than the depth of grooves of a diffraction grating and smoothing an interface with the air of the protection layer so that the roughness of the grooves are smoothed. CONSTITUTION:An objective grating lens 15 has a transparent plastic grating lens base substance 16 consisting of e.g. a PMMA material and having 1.5 refractive index and forms a grating surface 20 on which concentrical diffraction grating reliefs 18 having unequal intervals are engraved. A transparent protection layer 19 consisting of e.g. titanium oxide and having 2.5 refractive index is vapor deposited on the grating surface 20. In this case, the depth of the grooves of the reliefs 18 is about 0.8mum for light having 800nm wavelength. The depth is a half of about 1.6mum depth required when the protection layer is not formed, so that a diffraction grating pattern can be easily formed in this method. Although the protection layer 19 is vapor deposited so that the grooves of the reliefs are completely embedded, a smooth surface is obtained by grinding the surface of the protection layer 19 on the side bordering on air, preventing the grating lens from the loss of optical performance.
Patent JP-S62247720-A (JP)
Inventor: MATSUHASHI TOSHIHIKO
IPC: B60L9/00
Filed: 1986-04-17
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H07298248-A (JP)
Title: Dust generation monitoring method
Inventor: TANIYOSHI SHUICHI
IPC: G08B25/00
Filed: 1994-04-27
Abstract: PURPOSE:To provide a dust generation monitoring method in which dust generating location from a raw material yard, cokes factory, sintering factory, blast furnace, converter or continuous casting factory in an iron works is specified and the quantitative monitoring of the degree of dust generation is automatically and continuously implemented. CONSTITUTION:A vision camera 3 and an infrared ray camera 4 installed in a multistory building 1 in a works are used to pick up plural dust generating object installation equipped in the factory sequentially in a same visual field, two images picked up by an automatic dust generation detector 10 are used altogether and processed, the processed image is analyzed based on each factor such as color, shape, time change and temperature and when the generation of dust is discriminated, an alarm is raised to attain dust generation monitoring automatically and continuously with high accuracy and reliability.
Patent JP-S5614230-A (JP)
Title: Color correcting device of light source for printing of color printer
Inventor: KUWABARA TADASHI
IPC: G03B27/73
Filed: 1979-07-13
Abstract: PURPOSE: To enable the automatic setting of the positions of interference filters by storing the respective positions of the interference filters determined according respective standard negative films in an electric circuit for servomechanism and having the servomechanism that can instruct the movement of the interference filters.  
     CONSTITUTION: A block 22 consists of a color correcting reference voltage part of a printing light source, a block 23 of an interference filter position detecting part, and a block 24 a differential amplifier part. A block 25 is a comparing part and this device is consisted of these four blocks. A servomotor 45 is inverted of its rotating direction by the positive and negative of the applied voltage and is set in such a rotating direction as to make V 2 =V 1 . If color correction of the printing light source is made beforehand for every negative of 3 kinds by variable resistors 26, 27, 28, the desired color correction is made possible only by the operation of a change-over switch 29. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H01261862-A (JP)
Title: Semiconductor integrated device
Inventor: SENBA TAKASHI
IPC: H01L27/102
Filed: 1988-04-13
Abstract: PURPOSE:To obtain a semiconductor integrated device in which the increase of chip size caused by the increase of memory capacity is reduced, by connecting transistor electrode part in a memory cell and wiring by using a contact pattern, in the manner in which word line is wired right above a base electrode, and digit line is wired right above an emitter electrode. CONSTITUTION:Power supply line 11 of first wiring in a memory cell 10 is connected with the collector contact 15 of a bipolar transistor 14, and word line 12 of the first wiring is connected with the base contact 16 of the bipolar transistor 14. Digit line 13 of a second wiring is connected with the first wiring 19 connected with the emitter contact 17 of the bipolar transistor 14, by using a viahole 18. In such a constitution, connection of a transistor electrode with the word line and the digit line is determined depending upon whether electrode contact is present, instead of depending upon whether wiring exists or not.
Patent JP-S62246113-A (JP)
Title: Magnetic head
Inventor: TAGUCHI AKIRA
IPC: G11B5/265
Filed: 1986-04-18
Abstract: PURPOSE:To decrease the Gd variance of Er relative to R/W and to improve accuracy by providing a groove for controlling the gap depth Gd to a I-core side of an integral type bulk floppy chip which is one of a magnetic head and consists of the R/W head and erase (Er) head. CONSTITUTION:An Mn-Zn ferrite polycrystal material is used for the material. Grooving of the I-core 5 is executed by using a grinding wheel SD-1500-M having 0.2mm thickness, executing grooving first, then subjecting both side faces to mirror finishing by lapping and finishing the grooves to 20-50mum depth in the chip state. The chip can be worked to 0-15mum Gd variance of the Er head relative to R/W by executing the working in the procedures shown in the figure. There are no points which are of problem in the groove width L of the groove of the I-core 5. The influence on the magnetic path is larger as the core width T is smaller and therefore, the high accuracy is required in the depth H direction. This method is, therefore, effective for stabilizing the magnetic characteristic of the Er head and the variance of the conventional head is decreased to about 2dB.
Patent JP-S63254614-A (JP)
Inventor: OGAWA AKIO
IPC: H01B13/00
Filed: 1987-04-10
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。