baber/WOPTO huggingface dataset:
Patent JP-S595497-A (JP)
Title: Semiconductor rom
Inventor: SAKAI KIKUO
IPC: H01L27/10
Filed: 1982-07-02
Abstract: PURPOSE:To lessen time delay of access and speed up reading access, by performing reading judgement of defective memory cell parallel with selection of memory array, and forming an error correction signal when the reading output is sent out. CONSTITUTION:An exclusive logical sum circuit 10 is provided as an error correcting circuit between a sense amplifier 5 and an output buffer 6. Output from the sense amplifier 5 is impressed to one input of the logical sum circuit 10 and output of a comparator circuit 9 is impressed as an error correcting signal EC to another input. To correct an error, or, when reading out from a defective memory cell, it is enough to make coincidence detection output of the comparator circuit 9 ''1''. When EC is ''1'' and output of the sense amplifier 5 is ''0'', the exclusive logical sum circuit 10 inverts the output to ''1'' and outputs, and when output of the amplifier 5 is ''1'', the output is inverted to ''0'' and outputted to correct the error. At the same time, time delay of access can be reduced and reading access can be speed up.
Patent JP-S5448981-A (JP)
Title: Preparation of discharge lamp
Inventor: YADA MASAAKI
IPC: H01J9/26
Filed: 1977-09-24
Abstract: PURPOSE: To prevent the oxidation and deterioration of an electrode and a niobium cap, by sealing a lamp by irradiating laser rays directly or indirectly to matters melted by heating, to reduce the discharge of impure gas.  
     CONSTITUTION: An alumina tube 13 with photo-transmission property and insulation property arranging an inner tube 20 is held by a holding tool, and a glass solder 14 is placed on a port end of the alumina tube 13. A niobium cap blocking body 16, to which an electrode 15 is already mounted, is covered on the glass solder 14. A cover 1b is covered on a substrate 1a. A valve 10 is closed when pressure in a vessel 1 reaches the degree of vacuum, which is approx. 10- 5  torr, while operating a vacuum pump 11, opening the valve 10 and reading a pressure gauge 5. A slow leak valve 7 is opened while watching the indication of the pressure gauge 5, and non-reactive gas is introduced into the vessel 1. The slow leak valve 7 is closed when the indication reaches a fixed pressure, and laser rays 4 are irradiated to the inner tube 20 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H05292061-A (JP)
Title: Receiver for spread spectrum communication system
Inventor: HASHIMOTO TAKESHI
IPC: H04B1/71
Filed: 1992-04-07
Abstract: PURPOSE:To provide receiver which easily varies the band width of a received spread spectrum signal and can reduce external interference and is used for the spread spectrum communication system. CONSTITUTION:This receiver has an error decision part 6 which detects the error rate of the received spread spectrum signal (SS signal), a pulse generator 8 which varies the pulse width according to the error rate detected by the error decision part 6 and outputs the signal, a convolver 7 which varies the frequency band width of the received SS signal according to the result of the multiplication between the received SS signal and the output pulse of the pulse generator 8 and outputs the result, a correlator 4 which performs correlation arithmetic for the output of the convolver 7, and a data demodulation part 5 which demodulates the modulated data of the SS signal according to the output of the correlator 4. Then a variable BPF as a means which optionally varies the frequency band width of the received SS signal is constituted by using the convolver 7 and the pulse width of the input side of the reference signal of the convolver 7 is varied to optionally limit the band of the received SS signal, thereby removing an external interference wave.
Patent JP-H01257488-A (JP)
Title: Production of 2',3'-dideoxynucleoside
Inventor: YOKOZEKI KENZO
IPC: C12R1/64
Filed: 1988-05-11
Abstract: PURPOSE:To obtain a 2',3'-dideoxynucleoside having powerful antiviral action and availability for a remedy against AIDS at a low cost with high efficiency, by using a substance obtainable at a low cost by chemical synthesis as a sub strate and a specific enzyme as a catalyst. CONSTITUTION:A microorganism having the ability to produce a 2',3'- dideoxynucleoside from 2,3-dideoxyribose-1-phosphate and a base is reacted with the 2,3-dideoxyribose-1-phosphate and base in an aqueous solvent to afford the 2',3'-dideoxynucleoside. The base and 2',3'-dideoxynucleoside are preferably respectively adenine and 2',3'-dideoxyadenosine, hypoxanthine and 2',3'- dideoxyinosine or guanine and 2',3'-dideoxyguanosine. For example, Escherichia coli ATCC10798, etc., are used as the microorganism.
Patent JP-H09276450-A (JP)
Title: Method for measuring bending point of golf club shaft
Inventor: AIZAWA MASAHIRO
IPC: A63B53/00
Filed: 1996-04-11
Abstract: PROBLEM TO BE SOLVED: To make it possible to exactly measure the bending point of a golf club shaft. SOLUTION: A wire-shaped body 2 longer than the golf club shaft 1 is fixed to the front end 1A and rear end 1B of the shaft. The shaft 1 is hung down to face transversely by using a freely movable hanging down means 3 in the longitudinal direction on the wire-shaped body 2. A weight 5 is hung down in the middle in the longitudinal direction of the shaft 1 by using a freely movable weight hanging down means 4 in the longitudinal direction on the shaft 1. The position of the weight 5 on the shaft balanced under the weight hanging state is measured.
Patent JP-H05285576-A (JP)
Title: Manufacture of cam shaft and its device
Inventor: SASAKI NAOKI
IPC: B21D53/86
Filed: 1992-04-06
Abstract: PURPOSE:To dispense with the work of large bulging and to improve the cutting workability by subjecting the piece member of the prescribed width to plastic deformation so as to make it to the prescribed cam profile by a pair of moving dies. CONSTITUTION:At first, a cylindrical member of the prescribed length is cut in the diameter direction and a piece member 14 of the prescribed width is formed, together a tube member 15 of the prescribed length constituting a cam shaft is provided. Next, the tube member 15 is attached to a back-up shaft 4, the piece member 14 constituting the cam piece is fitted outside this tube member 15, and positions of these three members 4, 15, 14 are held by a position deviation preventing pin 12. Next, when an elevating/lowering member 7 is operated downward, a pair of moving dies 8, 9 execute the plastic deformation to this piece member 14 and the inner side tube member 15 at the same time while being guided with a guide surface 2 of a guide member 3, by rotating and pressurizing the piece 14 from the outer side with the shaping surfaces 8a, 9a as the pressurizing surface. Therefore, because both members 14, 15 are integrally jointed, the cam piece and the cam shaft can be jointed at the same time with forming of the cam piece.
Patent JP-H08280943-A (JP)
Title: Radio controller
Inventor: KANAAMI NOBUMITSU
IPC: A63H27/133
Filed: 1995-04-17
Abstract: PURPOSE: To prevent loosing sight of a flying object or others while stabilizing the flight of the flying object by controlling the flying object to restore a propagation path of a radio wave so that the flying object flies turning as preset when a control signal to be transmitted fails to be received normally. CONSTITUTION: When a receiver 2 receives a radio wave transmitted from a radio control transmitter, a control signal corresponding to an operating value of a manipulation lever is decoded to a PWM signal to be supplied to a control section 1. Then, the control signal is supplied to servo circuits passing through a pulse axis-voltage conversion circuit 10, adders 12 and 13, a voltage- pulse width conversion circuit 15 and the like sequentially and a flying object is operated. In this case, a detection signal from a sensor 3 detecting the inclination of the axes of rolling and pitching are added up by the adders 12 and 13 through an arithmetic circuit 16 to perform a feedback control so that the flying object will not be inclined. This enables the stabilizing of the flying object horizontally when a hand is released from the manipulation lever to make a shift to a neutral position.
Patent JP-S607578-A (JP)
Title: Picture signal processor
Inventor: HIRASHIMA KOUJI
IPC: G06T3/40
Filed: 1983-06-27
Abstract: PURPOSE:To contract both lateral and longitudinal data at a high speed by using an analog circuit for the contraction of lateral signal and a gate for longitudinal signal respectively. CONSTITUTION:A lateral signal processing circuit 4 contains analog integrators 41-43 and a mean value calculating circuit 44. The input data is supplied to the integrators 41-43 directly or via line shift registers 1 and 2. The outputs of integrators 41-43 are added together and averaged by the circuit 44. The output of the circuit 44 is impressed to a digital converting circuit 5 being a binary coded circuit, and is impressed to an output signal selection circuit 6 after binary coded. While the circuit 6 gates the output signal of the circuit 5 in the timing synchronous with the clock signal for the longitudinal contraction.
Patent JP-H0410668-A (JP)
Title: Light-emitting element of gallium nitride-based compound semiconductor
Inventor: MANABE KATSUHIDE
IPC: H01L21/205
Filed: 1990-04-27
Abstract: PURPOSE:To increase the number of luminous points, to enhance the brightness of individual luminous points and to increase the luminous intensity of a surface light-emitting operation as a whole by a method wherein an electric current in a prescribed magnitude is applied across an n-layer and an i-layer in the forward direction for a prescribed time. CONSTITUTION:A gallium nitride-based compound semiconductor light-emitting element is provided with the following: an n-layer composed of an n-type gallium nitride-based compound semiconductor (AlxGa1-xN; including X=0); and an i-layer composed of an i-type gallium nitride-based compound semiconductor (AlxGa1-xN; including X=0). At the light-emitting element, an electric current in a prescribed magnitude is applied across the n-layer and said i-layer in the forward direction for a prescribed time. When the electric current at a rated current of, e.g. 20mA is made to flow to a light-emitting diode 10 for 10 hours, its luminous intensity is increased by 30%.
Patent JP-H04342442-A (JP)
Title: Fluoride glass and optical fiber
Inventor: NISHIDA YOSHITAKE
IPC: C03C3/32
Filed: 1991-05-20
Abstract: PURPOSE:To improve thermal stability without toxicity and hygroscopicity in a fluoride glass, simultaneously prevent formation of scattering units and prepare fluoride optical fiber with a smaller transmission loss than that of conventional optical fibers. CONSTITUTION:In a fluoride glass, either of ZrF4 and HfF4 or a mixture of ZrF4 with HfF4 is used as a base so as to be surrounded with a range of 0.01-30% oxygen expressed in terms of anion fraction. The resultant fluoride glass is then used as either or both of core glass and cladding glass to produce optical fiber.
Patent JP-H01283129-A (JP)
Title: Porous composite sheet and its manufacture
Inventor: KISHIMOTO SOICHIRO
IPC: C08J9/40
Filed: 1988-05-10
Abstract: PURPOSE:To form a porous composite sheet of superior dynamical properties and hydrophilic nature by providing continuous void running through from one surface through the other of a sheet constituted of reinformed fibers integrated with a cured binder and specifying porosity, flexural strength and water suction speed and water suction rate of the whole sheet. CONSTITUTION:A porous composite sheet is constituted of reinforced fibers and a binder, and the reinforced fibers and the cured binder are integrated. As for the reinforced fibers, synthetic fibers composed of organic high molecules such as polyester fibers, inorganic fibers such as glass fibers are used. Said fibers are available only if having a shape such as a non-woven cloth sheet constituted of either long or short fibers. As for the binder, heat curing resin with 150 deg.C or lower of melting point or softening point, or thermoplastic resin is used. The composite sheet is provided with continuous voids running from one surface through the other surface of the sheet. Said composite sheet should have 40-80% of porosity, 50kg/cm<2> or more of flexural strength 30mm/10 second or more of water suction speed and 60wt.% or more of suction rate.
Patent JP-H09298599-A (JP)
Title: Public address device
Inventor: OKUBO TOMOAKI
IPC: H04M9/08
Filed: 1996-05-09
Abstract: PROBLEM TO BE SOLVED: To conduct adjustment for preventing howling of the loudspeaker device through a touch operation on a screen without the use of a measurement device or the like. SOLUTION: A voice signal from a microphone 1 is converted into a digital signal at an A/D converter D2, the digital signal is compressed by a level compression section 3, a BPF 4 is used to cut off low and high frequency signal components, the resulting signal is converted into an analog signal by a D/A converter 6, the analog signal is fed to a channel via a 2-4 wire conversion section 7, and a reception signal is given to a speaker 8, from which a sound is outputted.  A touch panel of an entry section 9 is operated on a screen of a display section 10 to set the howling prevention adjustment mode, a voice frequency signal generating section 12 provides an output of a voice signal of each frequency while increasing the level gradually based on data from a storage section 11, a howling detection section 13 detects howling with a signal from a signal level control section 5, a control section 14 calculates setting data to prevent howling and the data are stored in a storage section and then the data controls the signal level control section to compress the level of the frequency of the transmission signal.
Patent JP-S62272344-A (JP)
Title: Bus control method
Inventor: ODAN ETSURO
IPC: G06F15/16
Filed: 1986-05-21
Abstract: PURPOSE:To prevent cycle steal from another bus master by transmitting and receiving data through a determined bus in case of exclusive control and transmitting a signal indicating exclusive control to the other devices from a device which performs the exclusive control. CONSTITUTION:A memory area where read modify write may be performed is preliminarily set in a memory device 102, and the bus master which accesses this area always accesses it through a global bus 105. In case of a bus cycle accompanied with bus lock, the global bus is selected, and a global bus clock signal is made active during this time. Since another bus master cannot use the global bus 105 though trying to access said area, exclusive control is possible.
Patent JP-H02292976-A (JP)
Title: Magnetic recording/reproducing device
Inventor: OOMORI NOBUYASU
IPC: G11B20/02
Filed: 1989-05-08
Abstract: PURPOSE:To stabilize the vertical synchronization in a fast forward state of an LP mode by producing a control pulse from the drop-out pulse produced at an omission part of an FM signal in a fast reproduction state and switching a reproduction signal to a prescribed potential by means of the control pulse. CONSTITUTION:In a fast reproduction state of an LP mode, the wide noise bands are produced at the omission parts of the FM signals which are read by the video heads 3 and 4 respectively. These noise bands are sometimes produced at the black side. In this case, a drop-out pulse is also produced. When the width of the drop-out pulse is comparatively small, the drop-out compensation is carried out via a 1H-DL 21 and a switch 22. As a result, the vertical deflection due to the noise band is never produced. Therefore a pedestal potential switch circuit 23 is controlled with use of a fall pulse concurrently with a fall drop-out pulse with a delay of several H set at the rise of the drop-out pulse with the drop-out pulses covering several H through 10H. Thus the circuit 23 is actuated in such a control timing in order to eliminate the noise bands and to prevent the vertical deflection on a screen.
Patent JP-S5738425-A (JP)
Title: Optical path forming member of focal plane camera
Inventor: SEKIDA MINORU
IPC: H05F3/02
Filed: 1980-08-19
Abstract: PURPOSE:To realize not only a light weight but the miniaturization of a camera, by forming both a guide part and a light shielding frame of the shutter blade into a body with use of the synthetic resin and applying an electric conduction process to them to ensure the safe installation of electric lements. CONSTITUTION:For an optical path forming member 2, a light shielding frame 11 and a shutter blade guiding part are formed into a body by the synthetic resin, and an inner wall part 11b having an exposure aperture part 11a and a box-type wall part 11c enclosing the part 11a are provided along with an electric element storing space 12 secured at the bottom part. A shutter blade travel guiding part is formed on the back of the part 11b, and the vapor deposition of copper, etc. or the electric conduction process by coating is applied to the optical path forming part 2. Thus the weight of material can be reduced, and the effect of the static electricity due to the traveling of the shutter blade or the electric noise caused by operation of a switch can be prevented owing to the electric conduction process. In such way, the various types of members can be centralized on realize the miniaturization of a camera.
Patent JP-H11306552-A (JP)
Title: Optical disk device
Inventor: FUJIMORI NORINAO
IPC: G11B7/085
Filed: 1998-04-24
Abstract: PROBLEM TO BE SOLVED: To automatically switch the gain of a feed controlling device even though the carrier start up load of an optical pickup is large. SOLUTION: A feeding device controlling circuit 12, which supplies a control signal to an optical pickup feeding device 5, is of a gain variable type. Size discrimination of the transmitted feed control signal outputted from the circuit 12 is performed using a prescribed threshold value Vr as a reference. If the signal exceeds the value Vr, a gain switching switch 14 is switched and the gain of the circuit 12 is set to a larger side. Thus, a carrier control of the device 5 is surely accomplished independent of an environmental change.
Patent JP-S60259752-A (JP)
Title: Piston for internal-combustion engine
Inventor: TAGAMI ATSUSHI
IPC: F16J9/00
Filed: 1984-06-06
Abstract: PURPOSE:To prevent overheating of piston by providing a land between the piston ring grooves. CONSTITUTION:A land 5 is provided between a pressure ring groove 2 and an oil ring groove 3. The land 5 is formed with a tubular section 5a having relatively large diameter and a tubular flank section 5b having slightly smaller diameter. The combustion gas functioning onto the top portion of piston is blocked by the second land 5 to produce the blow-by gas only partially thus to reduce the production. Consequently, overheating of piston can be prevented.
Patent JP-H1053670-A (JP)
Title: Tire tread containing 3,4-polyisoprene rubber
Inventor: HALASA ADEL FARHAN
IPC: B60C1/00
Filed: 1997-05-02
Abstract: PROBLEM TO BE SOLVED: To provide a pneumatic tire having an outer peripheral tread excellent in tractive force, tread abrasion resistance and rolling resistance. SOLUTION: This pneumatic tire has a tread comprising a rubber composition composed of (1) about 5-50 pts.wt. of a 3,4-polyisoprene rubber having (a) 75-95% 3,4-isomer content, (b) 5-25% 1,2-isomer content, (c) 0-25 deg.C glass transition temperature and (d) 30,000-180,000 number average molecular weight and (2) about 50-95 pts.wt. of at least one rubber-like polymer simultaneously curable with the 3,4-polyisoprene rubber based on 100 pts.wt. of the rubbers.
Patent JP-H0411237-A (JP)
Title: Camera using film provided with magnetic storage part
Inventor: AOSHIMA TSUTOMU
IPC: G03B17/24
Filed: 1990-04-27
Abstract: PURPOSE:To always accomplish the accurate write and readout of information by forming a pressing member so that it can rock in a film traveling direction and making the member have a U-shaped cross section on a film contact surface side. CONSTITUTION:The information is recorded in or read out from the magnetic storage part of a film 2 traveling in a direction shown by an arrow A by a magnetic head 1. The pressing member 3 is formed so as to be able to slide in a direction shown by an arrow B by fitting projections 9a and 9b provided on a bottom board in the long holes 3a and 3b of the member 3. Then, the cross section thereof on the film contact surfaces 4b-4d side is formed U-shaped. Therefore, the film 2 is stably brought into contact with the magnetic head 1 by the action thereof obtained by making the cross section U-shaped in the case that the magnetic head 1 is attached in a state where it is rotated to be distant from the film 2 and by the action thereof obtained by forming so that it can rock in the case that the magnetic head 1 is attached in a state where the center of the head 1 is deviated from the center of the member 3. Thus, the accurate write or readout of the information is always executed.
Patent JP-S5542343-A (JP)
Title: Control system for memory unit
Inventor: TAKAMURA MORIYUKI
IPC: G06F12/16
Filed: 1978-09-19
Abstract: PURPOSE: To make it possible to detect bit positions of a multibit error through software or only by adding a few circuits.  
     CONSTITUTION: Once error correction circuit ECC38 generates signal UNCOR15 indicating an uncorrectable error, operation signal GO16, operation mode signal OPC17 and write data DIN18 are supplied to a memory unit. Then, OPC17 assigns write operation and DIN18 generates known data such as all-"1" data. After the write operation, GO19 and OPC20 are generated again. Then, OPC20 assigns read operation and read data 14b is obtained. A bit-by-bit comparison between this read data 14b and known data 18 and a check are made and its result is generated as comparison error signal COMPE21. Therefore, error bit positions are discriminated by this signal and the detection becomes possible. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5639858-A (JP)
Title: Grinder for end face of steel
Inventor: YANAGIDA YOSHIJI
IPC: B24B7/16
Filed: 1979-09-07
Abstract: PURPOSE:To deburr a ground end face well, by detecting the inclination angle of the ground end face and swinging a grinding mechanism depending on the detected angle to place a grinding surface in parallel with the ground end face. CONSTITUTION:A swing base 7 for swinging and securing a grinding mechanism 8 is so installed that the base can be displaced back and forth and secured by a feed mechanism comprising a feed cylinder 5 and a feed slider 6. An angle detection mechanism or vertically moving cylinder 23, which is provided with a side surface 30 in parallel with the grinding surface 15A of the grinding mechanism 8, is installed. The angle detection mechanism or vertically moving cylinder 23 is supported movably back and forth so that the mechanism 23 can be moved in between the grinding surface 15A and the ground end face 2 of steel 1. The mechanism 23 can be brought into contact with the ground end face 2 to detect its inclination angle. The grinding mechanism 8 is swung depending on the quantity of displacement of the angle detection mechanism 23 for contact with the ground end face 2, through a hydraulic circuit for transmitting the displacement of the mechanism 23. The grinding surface 15A is placed in parallel with the ground end face 2 by a copying cylinder 22.