baber/WOPTO huggingface dataset:
Patent JP-S5851008-A (JP)
Title: Position detector of slide base in surfacing device
Inventor: MURASHIGE EIJI
IPC: G01B7/00
Filed: 1981-09-19
Abstract: PURPOSE:To high accurately perform positioning machining, by linearly moving a shuttling slide base through rotation of a feed screw and detecting a movement amount of the slide base with a rotary position of the feed screw. CONSTITUTION:When a slide base 2 is moved, its position is detected by a resolver 6, directly connected to a feed screw 3 driving the slide base 2, and an output electric signal of the resolver is fed to an NC device 23 through contactless type rotary transformers 15a, 15b to control a driving gear 24 of the slide base 2. As a result, the driving gear of the slide base can be controlled by feeding the output signal to the NC device to perform high accurate positioning machining.
Patent JP-S5671478-A (JP)
Title: Gate interrupting system for thyristor type inverter
Inventor: TAMURA YOSHIMOTO
IPC: H02M7/515
Filed: 1979-11-15
Abstract: PURPOSE:To interrupt the gate in the state that a current flows the thyristor in the inverter for short time by applying a signal having higher frequency than the frequency at normally operating time to a commutation circuit at malfunction occurring time. CONSTITUTION:If a malfunction signal rises, a gate amplifier 11 is interlocked, and the gate signal in the inverter 4 is interrupted. Then, the clock pulse of the ring counter 10 is interlocked, and the ring counter 10 is stopped. When an on-delay timer 19 is counted up, it will produce a counter pulse. Thus, a counter 15 is operated, and will produce a gate signal through a monostable multivibrator circuit 12 and a gate amplifier 13 to a commutation circuit 5. If no output is produced from the circuit 12, the timer 19 is counted up by the output from the inverter 18, and a count pulse is again produced. When the counter 15 is thus freely run and is then counted up, the count pulse is interlocked, the gate amplifier 13 is also interlocked, and the gate signal of the circuit 5 is interrupted.
Patent JP-H0312898-A (JP)
Title: Non-volatile semiconductor memory
Inventor: TERADA YASUSHI
IPC: G11C17/00
Filed: 1989-06-09
Abstract: PURPOSE:To accurately set a voltage impression period and to attain secure deletion by controlling a period impressing a high voltage on a source for deleting storage data of a memory transistor having a floating gate by means of a timer. CONSTITUTION:The timer 9 is provided between a command register 6 and a write/read control circuit 7. For deleting data stored in a memory array 1, the control gates of all the memory transistors are grounded, the high voltage is impressed on the source, a high magnetic field is impressed on an oxide film between the floating gates and the source, and deletion is executed collectively or in block units. Since the width of a deletion pulse is controlled by the timer 9 provided on a chip, an inconvenience that a deletion time for the memory transistors is too long and they come to depletion state is securely cancelled. Thus, reliability can be improved and a recognition process after deletion can be saved.
Patent JP-S6324030-A (JP)
Title: Anisotropic rare earth magnet material and its production
Inventor: SUGAWARA HIDEKUNI
IPC: H01F1/053
Filed: 1986-06-26
Abstract: PURPOSE:To form an anisotropic rare earth magnet material having structural and magnetic anisotropy on a substrate by sputtering a target made of the specific compsn. consisting of metals such as rare earth metal elements and Co and O in an Ar atmosphere. CONSTITUTION:The target made of the component compsn. consisting of (R1-aOa)bM1-b (where R; rare earth metallic element of >=1 kinds among lanthanide La including Y, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Hf, M; Co or combination of Co and >=1 kinds among Fe, Cu, Zr, Ti, Al, and B, a<=0.05, b=0.1-0.5) is disposed in the Ar atmosphere. AC or DC electric field is impressed between the above-mentioned target and the substrate consisting of glass, etc., to execute sputtering. The material having the structural and magnetic anisotropy is thus formed on the above-mentioned substrate.
Patent JP-H01317259-A (JP)
Title: Magnetic recording/reproducing device
Inventor: OWADA NOBUYOSHI
IPC: G11B15/473
Filed: 1988-06-17
Abstract: PURPOSE:To prevent the injury of a tape at its start up by detecting the contact pressure between a head and the tape when a rotary drum is started and stopping the revolution of the head in the case the detected contact pressure is higher than a prescribed level. CONSTITUTION:A supply reel 1 is prepared together with a tension pin 3, a rotary drum 8, a motor drive circuit 12, a revolution detector 13, a low speed setting circuit 18, a reference speed setting circuit 19, a reel motor control circuit 21, a tape tension detector 22, a reference tension setting circuit 23, a comparator 25, a switch control circuit 27, and a speed zero setting circuit 28 respectively. In case the contact pressure the detected right after a stand-by state between a head and a tape 6 exceeds a prescribed level when the drum 8 is started, the start of the drum 8 to be carried out at the normal rotational frequency is inhibited before said contact pressure becomes less than the prescribed level (reference contact pressure). Thus it is possible to prevent the head from giving the injury to the tape magnetic surface when the drum revolution is started.
Patent JP-S63311323-A (JP)
Title: Optical low-pass filter
Inventor: SHIRAISHI AKIHIKO
IPC: H04N5/335
Filed: 1987-06-15
Abstract: PURPOSE:To roughly equalize a trap frequency in a prescribed wavelength range, and to obtain a uniform low-pass effect by providing a trapezoidal member for satisfying specific conditions in width of a top flat part of a trapezoidal wave, width of a bottom flat part, height, period, reference wavelength, and between the longest wavelength and the shortest wavelength in an object wavelength area. CONSTITUTION:Width of a top flat part of a trapezoidal wave, width of a bottom flat part, height, period, reference wavelength, and the longest wavelength and the shortest wavelength are denoted as (a), (b), delta, (d), lambdaD, and lambdaM, lambdam, respectively, and a trapezoidal member for satisfying the conditions of expressions (2)-(4) is provided. When the height delta of the trapezoidal wave is set to about the used wavelength, an optical low-pass filter whose trap frequency is constant in a wavelength area being below the vicinity of the wavelength lambdaD can be obtained. In such a way, a low-pass effect at the time when this filter has been applied to a video camera, etc., can be displayed effectively, and in a prescribed wavelength area, a uniform low-pass effect can be obtained.
Patent JP-S6212626-A (JP)
Title: Production of optical fiber of constant polarized electromagnetic radiation
Inventor: SUGANUMA HIROSHI
IPC: G02B6/024
Filed: 1985-07-08
Abstract: PURPOSE:To obtain an optical fiber of constant polarized electromagnetic radiation without causing deformation of crosssectional shape, by boring holes through a parent material having a core and a clad, inserting stress imparting materials into the holes, integrating the parent material with the stress imparting material by heating under reduced pressure while pressurizing them in the axial direction and drawing them. CONSTITUTION:The holes 4a and 4b are bored at positions symmetric with respect to a core through the parent material 11 having the core and a clad, the parent material 11 is fused at one end to the quartz rod 6 and at the other end of the parent material 11 to the quartz rod 5. Then, the stress imparting materials 3'a and 3'b are inserted through the quartz pipe 5 into the holes 4a and 4b, the quartz pipes 7a and 7b are further inserted on the stress imparting materials, the weight 8 is placed on the quartz pipes 7a and 7b so that pressure in the axial direction is applied to the stress imparting materials 3'a and 3'b. Then, the holes are evacuated by a vacuum pump, the materials are collapsed by the resistance furnace 9 and simultaneously drawn, to give an optical fiber of constant polarized electromagnetic radiation having the core 1, the clad 2 and the stress imparting materials 3a and 3b.
Patent JP-H05308842-A (JP)
Title: Combine
Inventor: USAMI YASUTO
IPC: A01F12/60
Filed: 1992-05-13
Abstract: PURPOSE:To reduce the amount of a tank projected to the right-hand side of a body of machine during removal and to readily open a tank-fixed part even at a narrow spot by installing a support shaft for horizontally rotating a grain tank at a specific position. CONSTITUTION:A support shaft 17 for horizontally rotating a grain tank 15 is installed at the rear of a body of machine at the side of furnishing of a feed chain 5 at the opposite side to a tank storage position of a base 3. A wide operation space can be formed on the base of the furnishing part of the tank in a state wherein the front of the tank apart from the support shaft is maintained closely to the base.
Patent JP-S5480539-A (JP)
Title: Ac voltage controller
Inventor: KAMIFUJI TAKAO
IPC: G05F1/56
Filed: 1977-12-09
Abstract: PURPOSE: To electronically perform inpedance control, by connecting the primary winding of a transformer in series with an impedance controller which controls the impedance.  
     CONSTITUTION: When a change-over switch is set on an automatic side and a switch 12 is set on the side of a resistor 3, a capacitor 4 is charged with the time constant of the resistor 3 with the capacitor 4 at a voltage determined by a constant voltage diode 18. The voltage of the capacitor 4 is applied to the gate of a field- effect transistor 5. The drain current corresponding to the gate voltage flows through a resistor 6. The voltage across both the terminals of the resistor 6 is applied to the base of a transistor 7. Thereby, a current flowing through an AC power source and a full-wave rectifier circuit 9 is controlled to gradually rise according as the charging voltage of the capacitor 4 increaes. Therefore, an AC output voltage which is swept at an optional rate can be produced by varying the resistance of the resistor 3. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H10337284-A (JP)
Title: X-ray film cassette holder
Inventor: OSHIMA KOICHI
IPC: A61B6/00
Filed: 1997-06-05
Abstract: PROBLEM TO BE SOLVED: To easily and quickly mount or demount an X-ray film cassette by providing a support member containing a horizontal support part and a vertical support part installed on a baseplate, and combining it with the horizontal support part by almost vertically arranging its vertical support part to one surface of the baseplate. SOLUTION: A holder contains a baseplate 1 and a support member 2, and the support member 2 is composed of a horizontal support part 21 and a vertical support part 22. This horizontal support part 21 is arranged almost in parallel to one surface 10 of the baseplate 1, and the vertical support part 22 is almost vertically arranged to one surface 10 of the baseplate 1, and is combined with the horizontal support part 21. A supporting recessed groove to receive an X-ray film cassette is composed of recessed grooves 210 and 220 arranged in the lengthwise direction of the horizontal support part 21 and the vertical support part 22.  In the case of X-ray photographing, after the X-ray film cassette- installed holder 4 is arranged so as to be opposed to an X-ray photographing device 6 by sandwiching a patient 5, X-rays 61 are irradiated toward the patient 5 from the X ray photographing device 6.
Patent JP-H0442620-A (JP)
Title: Method and apparatus for coding and decoding
Inventor: SATOMURA SEIICHIRO
IPC: H01B3/22
Filed: 1990-06-08
Abstract: PURPOSE:To facilitate the development of a high density digital information recorder while keeping upward compatibility with a convention information recorder by using a single decoding conversion means to decode different code signals transferred at an equal code transfer rate and provided from plural different coding means. CONSTITUTION:A single decoding conversion means A decodes different code signals transferred at an equal code transfer rate and supplied from plural different coding means. In such a coding decoding method, a single decoding conversion table or a single decoding conversion formula being a single decoding conversion means is used to select codes enabling decoding and not interfered with each other. Moreover, a coding decoding device B uses a reproduction means to reproduce medium (digital information) recorded by different coding means recorded by different coding means respectively. Thus, upward compatibility is attained to a conventional code signal at the time of decoding without providing of plural decoding theory circuits or plural decoding tables, and the development of a high density digital information recorder is easily attained.
Patent JP-H04252210-A (JP)
Title: Fluorine-containing methacrylate, its polymer and material for water-containing soft contact lens
Inventor: KAGEURA YOSHIAKI
IPC: C08F20/22
Filed: 1991-06-20
Abstract: PURPOSE:To provide the subject methacrylate composed of a specific structure and giving a polymer useful as a lens material, etc., having excellent water- wettability, oxygen-permeability, processability, softness and stain-resistance. CONSTITUTION:The objective methacrylate is expressed by formula I (m is 1-4; n is 0 or 1). A fluorine-containing polymer of formula II having a number- average molecular weight of 1,000-800,000 can be produced by polymerizing the compound. A fluorine-containing copolymer having a number-average molecular weight of 1,000-800,000 is produced by using 1-50 pts.wt. of the compound of formula I and 50-99 pts.wt. of a hydrophilic monomer such as 2-hydroxyethyl (meth)acrylate as main components. The fluorine-containing copolymer can be crosslinked by using <=5 pts.wt. of a crosslinking agent based on 100 pts.wt. of the total amount of the monomers of the fluorine-containing copolymer. The polymer or copolymer are suitable as a material for soft contact lens.
Patent JP-S637192-A (JP)
Title: Motor driver
Inventor: NAKAZAWA KOICHI
IPC: H02P25/04
Filed: 1986-06-25
Abstract: PURPOSE:To protect the switching element of a transistor inverter by turning OFF all inverters when one of current detectors provided in a plurality of motor driving circuits exceeds a set current value. CONSTITUTION:Transistor inverters 1, 2 are connected in parallel, and simultaneously driven by one PWM signal. A current applied to a motor 9 through the inverters 1, 2 from a DC power source 3 is detected by current detectors 4, 5. When one inverter exceeds a preset current value, a pulse width limiter 8 turns OFF a PWM signal to stop all the inverters 1, 2, and to again drive the motor by the rise of the signal.
Patent JP-H0879503-A (JP)
Title: Method and device for image processing
Inventor: USHIDA KATSUTOSHI
IPC: H04N1/405
Filed: 1995-06-15
Abstract: PURPOSE: To provide an image processing method and its device which records a high definition image making the best use of resolution of a recorder. CONSTITUTION: A motor 160 driven and controlled by a motor controller 170 sends an original line by line and makes a CCD 180 read the image of the original. Multilevel image data outputted from the CCD 180, after being corrected by an analog correction processing part 190, is inputted to a threshold processing part 200. The threshold processing part 200 varies the power of inputted image data when output resolution is higher than that of inputted image data in such a case that the inputted image data is outputted to an LBP 220, and threshold processes the data to a pseudo halftone image by an error diffusion method, etc.
Patent JP-H077743-A (JP)
Title: Clip device
Inventor: TSUBOI AKIHIKO
IPC: H04N9/68
Filed: 1993-06-21
Abstract: PURPOSE:To attain the expression of an excellent color by applying clipping to a larger color difference signal and applying the clipping of the same rate to a smaller color difference signal when a color difference signal is going to be amplitude-limited in a signal processing circuit for a video camera or the like thereby not changing a color phase of the color difference signals. CONSTITUTION:A multiplexer circuit 1 receives color difference signals (such as R-Y, B-Y) and converts them into serial data, to provide an output. A maximum value detection circuit 2 outputs a signal MAX (R-Y, B-Y). An excess level detection circuit 3 takes the difference between an input value and a clip level to output an excess level. A coefficient generating circuit 4 generates and outputs a smaller value when an excess level is larger depending on the obtained excess level and a coefficient close to the unity when the excess value is small. A multiplier 5 multiplies the coefficient obtained from the coefficient generating circuit 4 with color difference data obtained from the multiplexer circuit 1 to apply clipping at the same rate to the signals R-Y, B-Y.
Patent JP-H11340249-A (JP)
Title: Resin sealing semiconductor device and its manufacture
Inventor: YAMAJI YASUHISA
IPC: H01L21/60
Filed: 1998-05-29
Abstract: PROBLEM TO BE SOLVED: To prevent occurrence of a crack due to air bubbles generated by heating at connection to a printed board, etc., by, related to a resin sealing semiconductor device where a plurality of wirings are formed, forming a single or plurality of dummy wirings in a region on an insulating substrate where no wiring is formed. SOLUTION: A dummy wiring 14 is formed in a space where no wiring pattern 8 is formed, on the upper surface of an insulating substrate 6 of a printed board. With a space where no wiring pattern is formed narrowed, a unevenness due to a wiring pattern in a region where a solder resist is formed is made less as possible, so that the unevenness on the surface of solder resist is reduced for smoothness. Since a part with a void generated by unevenness is reduced, the amount of air bubbles generated at the void is reduced for improved reliability of a semiconductor device.
Patent JP-H01316752-A (JP)
Title: Electrophotographic device
Inventor: TAKAGI KATSUHIKO
IPC: G03G5/10
Filed: 1988-06-16
Abstract: PURPOSE:To obtain the electrophotographic device which prevents interference fringes from being formed in an image and is free from an image defect by limiting the extent of the surface roughness of the conductive base body of a photosensitive body. CONSTITUTION:The waveform of exposure for latent image formation is about 780nm and the conductive base of the photosensitive body has a surface satisfying respective conditions of 0.4-2.0mum maximum height (Rmax), 0.1-0.6mum surface waviness (Wc), 5-30mum mean peak intervals, 0.1-0.5mum mean center line roughness (R3), and 0.3-1.9mum 10-point mean roughness (Re). For example, even when a semiconductor laser is used as an exposure light source for latent image formation on the photosensitive body and the photosensitive body is irradiated with light with about 780nm wavelength, no interference fringes due to reflected light on the base surface are formed in the image on a sensitive body device for electrophotography.
Patent JP-H0810237-A (JP)
Title: Superconductive magnetic shielding device
Inventor: SHIRAI NAOHITO
IPC: H05K9/00
Filed: 1994-06-30
Abstract: PURPOSE:To provide a superconductive magnetic shielding device provided with superior magnetic shielding performance by forming the area of the opening end of the superconductive magnetic shielding device provided on one end of which an opening part is provided and on the other end of which a closing part is provided larger than that of the closing part. CONSTITUTION:A magnetic detector using a SQUID(superconducting quantum interference device) is constituted of a magnetic sensor part 2 including the SQUID and a magnetic detecting coil 3, and all of them are dipped in a cooling medium, then, a superconducting state can be generated. An opening to insert the magnetic detecting coil 3 to a magnetic shielding body 4 provided on the outer surface of a magnetic shielding device S is provided, and the magnetic shielding body 4 is sealed in a cryostat 5 made of FRP. An object 1 to be measured is inserted from an opening end and arranged on the bottom of a closed end, and the magnetic detecting coil 3 is moved to a position near to the object 1 to be measured, and magnetic measurement is performed at a measuring point P. In such the case, the cross-sectional shape of the magnetic shielding body 4 is formed so as to set the area of the opening end larger than that of the closing end. In this way, it is possible to display the superior magnetic shielding performance and to improve workability for the magnetic measurement.
Patent JP-H05340033-A (JP)
Title: Manufacture of steel pipe column with outer diaphragm
Inventor: MORI MASANORI
IPC: E04B1/30
Filed: 1992-06-09
Abstract: PURPOSE:To improve dimensional accuracy in a manufacturing process and to rationalize factory manufacture management by bending a flat steel plate, to which an outer diaphragm steel plate is unitedly attached, to form the pipe body of a steel pipe column. CONSTITUTION:First, a steel plate 21 for an outer diaphragm is formed to dimensions required for the outer diaphragm 2, and unitedly attached onto a plate face being at a beam attaching position on a flat steel plate 11 for a steel pipe column under a condition where the steel plate 21 is vertically stood up in the lateral direction of the flat steel plate 11. Next, the flat steel plate 11 is roundingly bent in its lateral direction so that a face opposite to a face where the steel plate 21 for the outer diaphragm is attached may be an inner face, and the edges 11a, 11b on both sides of the flat steel plate 11 are butt joined to form a pipe body 1. At the same time, the steel plate 21 for the outer diaphragm is also butt joined at its ends 21a, 21b to form the ring-shaped outer diaphragm 2. Finally, after a steel pipe column 1 with the outer diaphragm is completed by bending and welding, it is heat-treated for the purpose of the improvement of stress and strain.
Patent JP-H05342568-A (JP)
Title: Magnetic recording medium
Inventor: INABA NOBUYUKI
IPC: G11B5/738
Filed: 1992-06-09
Abstract: PURPOSE:To enhance the sensitivity of a magnetic disk having a head positioning mechanism utilizing light, to a position detecting signal. CONSTITUTION:A light reflecting nonmagnetic layer 1 is laminated on the magnetic recording layer 3 of a magnetic recording medium so as to satisfy the relation of R1>R2 between reflectance R1 to incident light 7 on the surface of the nonmagnetic layer 1 and reflectance R2 to the light 7 on the surface of the magnetic recording layer 3. Since sensitivity to a position detecting signal is enhanced, positioning precision is enhanced.
Patent JP-S6127844-A (JP)
Title: Automatic conveying device for original
Inventor: SAKAGUCHI HIROAKI
IPC: G03G15/00
Filed: 1984-07-17
Abstract: PURPOSE:To raise the operational convenience, and prevent an error in the operation, by making it possible that a tray for an interruptive original is inserted when an original feeding roller is in its withdrawn position, and at the same time, setting an insertion detecting means, in a device as shown in the title, of such as a copying machine. CONSTITUTION:When it is intended that an interruptive original is inserted, an interruptive sheet feeding mode is prepared by operating an interruption key which is not shown in the figure. In case that a sensor 11 does not detect an original, an original feeding roller 2 moves to its restorational position 2b, and it becomes possible that a tray 4 for an interruptive original is inserted. When the tray 4 is inserted and sensors 5 detect this matter, the said roller 2 moves to the position 2c shown as a real line in the figure, where the roller 2 is pressed against the interruptive original sheet 16, and conveys this sheet 16. When the said tray 4 is pulled out and the sensors 5 detect this matter, the roller 2 begins conveying the original sheets 15 set in their regular position, again. In this way, it becomes easy to insert an interruptive original sheet, and an error in the operation can be prevented.