baber/WOPTO huggingface dataset:
Patent JP-H02183425-A (JP)
Title: Focus detecting system for multi-beam optical head
Inventor: NAKAMURA YUICHI
IPC: G02B7/28
Filed: 1989-01-10
Abstract: PURPOSE:To execute a focus detection of a multi-beam at a low cost by providing light beams of different wavelength, a synthesizing and condensing means for a beam, a deflecting and separating means, and a means for responding to the beam. CONSTITUTION:Laser beams L1, L2 of different wavelength are synthesized by an optical member 23 and condensed by a lens 2, and a recording beam irradiates a disk 1. A reflected light to a reproducing beam is allowed to pass through the lens 2, a beam splitter 3 and a detection lens 12, deflected and separated by an optical member 24, and the beams L1, L2 are changed to electric signals by areas 17A1-17B2 and applied to amplifying circuits 31A-31D. At the time of a focusing operation, an output of the amplifying circuit is added selectively and supplied to differential amplifiers 41, 42, and a driving circuit 44 drives the lens 2. At the time of tracking, a driving circuit 45 moves vertically the lens 2 to an optical axis and executes a position control. At the time of reproduction, a beam of prescribed weak intensity is emitted from a laser 8 and made incident on a photodetector 17 by bringing the whole to intensity modulation, and by processing all outputs of all amplifying circuits 31 by a signal processing circuit 43, data is reproduced.
Patent JP-S61161713-A (JP)
Title: Parts for manufacture of semiconductor
Inventor: SHIMIZU YASUHIRO
IPC: H01J37/317
Filed: 1985-01-10
Abstract: PURPOSE:To prevent harmful impurities in manufacturing semiconductor from adhering to a substrate by coating peripheral parts of a semiconductor substrate which is to be given a surface preparation, and a part of all over the surface of a vessel wall with a material having no bad influence on the semiconductor substrate. CONSTITUTION:In parts for manufacturing a semiconductor to give various surface preparations to the semiconductor, peripheral parts of a semiconductor substrate prepared, and a part or all over the surface of a vessel wall are coated with a material having no bad influence on the semiconductor substrate. When a semiconductor is thought as a substrate for this material, the same semiconductor is desired to be used. Ion injection method is thought as a surface preparation.
Patent JP-S5388116-A (JP)
Title: Controller for induction motor by cuttent type inverter
Inventor: KATSUKI KANJI
IPC: H02P27/06
Filed: 1977-01-14
Abstract: PURPOSE: To devise an improvement of a tracing response for an operation pattern, by controlling with a voltage pattern made by composing an operation pattern signal with a multiplication signal of a deceleration signal of an operation pattern and an operation pattern. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H01183379-A (JP)
Title: Control system of master/slave manipulator
Inventor: ONDA TOSHIKAZU
IPC: G05D3/12
Filed: 1988-01-12
Abstract: PURPOSE:To avoid occurrence of a damage of a mechanical stopper and a slave arm in an operational limit, in the case that a slave arm approaches the operational limit beyond a predetermined position in the vicinity of the operational limit, by adding, to a reduction force, a gradually increasing force as a slave arm approaches the operational limit. CONSTITUTION:In a bilateral type master/slave manipulator control system, in which an external force Ts applied on a slave arm is operated for feed-back to a master arm, a predetermined position is set in the vicinity of an operational limit of a slave arm. In the case that the slave arm approaches in the vicinity of the operational limit beyond the predetermined position, the nearer it approaches, the more a force corresponding to a joint angle Ps is applied to a reaction force Tm. This make the master arm less liable to be driven, thereby suppressing operation of the slave arm. Thus, it is possible to relay any shock caused by abutment of the slave arm on a mechanical stopper so as to avoid a damage thereof.
Patent JP-H05189972-A (JP)
Title: Semiconductor memory device
Inventor: YOSHIDA MAKOTO
IPC: G11C11/408
Filed: 1992-01-10
Abstract: PURPOSE:To remarkably reduce the load capacitance of a block selection line, to reduce a discharge current, and to shorten signal transition time by forming a decoder circuit by connecting a pair of conductive type transistors in specific fashion. CONSTITUTION:The block selection line 2 of the decoder circuit 1 is connected to the source of a PMOS transistor (first transistor) TP, and a main word line MW is connected to the gate of the first transistor TP and that of an NMOS transistor (second transistor) TH. Also, a sub word line LW is connected to the drain of the PMOS transistor TP and that of the NMOS transistor TN, and the source of the Tr TN is connected to the ground. Therefore, the load observing from the block selection line 2 goes to sum of the source diffusion capacitance of the Tr TP and the capacitance of the sub word line LW, which remarkably reduces the load capacitance, and improves access time and current consumption.
Patent JP-H07204811-A (JP)
Title: Continuous casting method
Inventor: OGURA SHIGERU
IPC: B22D11/12
Filed: 1994-01-18
Abstract: PURPOSE:To provide a continuous casting method, by which a high carbon steel having high quality without surface and internal inclusion and surface and internal crack can be produced in high productivity and high product yield. CONSTITUTION:At the time of continuously casting the steel material containing >=0.03% carbon, the bending in the unsolidified condition of a cast slab 12 and the straightening at the unsolidified condition or after perfectly solidifying are executed by using a vertical bending type continuous caster 10. In the other way, further, >=40% of the total cooling water is jetted till completion of the bending in a secondary cooling zone 22 of the continuous caster 10 and the cooling water is also shut off at the end part of the cast slab at least at one zone in the secondary cooling zone 22. Further, divided rollers are used at the bending part and/or the straightening part of the secondary cooling zone 22 and the continuous casting is executed at >=0.8m/min casting velocity.
Patent JP-H07211114-A (JP)
Title: Luminaire having variable reflection plate
Inventor: AOYANAGI TORU
IPC: F21V7/18
Filed: 1994-01-18
Abstract: PURPOSE:To improve illuminance in a room for providing soft light radiation in a luminaire having a light source and a reflection plate which are provided in a recessed part in a ceiling. CONSTITUTION:A hook-shaped part at a forward end of an unillustrated handling rod is hooked on a hole 25 of a hook plate 23 at a center of a reflection plate 13, and it is pulled down, so the reflection plate 13 is folded at a folding side 17 at the center to be protruded down. The reflection plate 13 comprises two separation parts 21. Each separation part 21 comprises a rotation shaft 19 provided at the folding side 17, and a rotation shaft 29 provided at an end side 27 on the opposite side of the folding side 17. The rotation shaft 29 slides along a slide shaft 3 for smoothing protruding action. By this protrusion, a light source 15 provided on the surface of the reflection plate 13 is also protruded, a ratio of irregular reflection of light from the light source 15 inside a recessed part 3 is decreased to improve illuminance in a room, and the inside of the room can be radiated even to the corners. Light from the light source 15 is once reflected by a ceiling to be indirect light to soften light radiation inside the room.
Patent JP-S60161472-A (JP)
Inventor: HERUMUUTO RONGE
IPC: D21H17/62
Filed: 1985-01-14
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-2000207764-A (JP)
Title: Optical head and optical disk apparatus
Inventor: KAMIYANAGI KIICHI
IPC: G11B7/135
Filed: 1999-01-08
Abstract: PROBLEM TO BE SOLVED: To provide an optical head and an optical disk apparatus which are small and which can achieve a high recording density. SOLUTION: A laser beam 3a which is radiated from a semiconductor laser 2 is shaped to be a parallel beam 3b by a collimating lens 4, and it is bent at right angles by a return mirror 5 so as to be incident on a condensing hologram 10A. A parallel beam 3c which is incident on the condensing hologram 10A is condensed on the face 6b of a transparent medium 6 to be condensed for condensing, and a light spot 9a is formed on the face 6b to be condensed. Light which is condensed in the light spot 9a is leaked to the outside of the transparent medium 6 for condensing as near-field light 9b from the face 6b to be condensed. When a recording layer 8a on an optical disk 8 is irradiated with the near-field light 9b, a recording operation and a reproducing operation are performed.
Patent JP-H05207741-A (JP)
Title: Switching power source circuit
Inventor: SATO YUKINORI
IPC: H02M3/28
Filed: 1992-01-13
Abstract: PURPOSE:To prevent an output voltage from becoming higher than a standard value when an output current is low in a self-excited switching power source. CONSTITUTION:A switching transistor switches input power through a switching transformer 1 according to a switching pulse from a driver 3 which is under control of a voltage comparator 6 and a feedback circuit 7 of an output side, and a DC output is obtained by a rectifier 4 and a capacitor 5. When an output current becomes low, a switching pulse width is reduced. When the output current is a predetermined value or less, an output current detector 8 detects it and a switching pause controller 9 forcibly pauses a switching pulse of a switching transistor 2 at each predetermined period only for predetermined minutes, and hence the switching pulse width does not decrease so much as the transistor 2 cannot follow up it. Thus, an output voltage does not become higher than a standard value.
Patent JP-H06217218-A (JP)
Title: Teletext signal processing circuit
Inventor: USAMI MORIHISA
IPC: H04N5/445
Filed: 1993-01-13
Abstract: PURPOSE:To set the roundness of an image to 1 even when the aspect ratio of a surface screen is different by writing a decoded teletext video signal in a memory temporarily and varying a read speed different from the write speed. CONSTITUTION:When a teletext signal with a 4:3 display aspect ratio is displayed on a television with a 16:9 display screen, the coded teletext signal is supplied to a decoder 1 and decoded into a video signal, which is digitized by an A/D converter 2 and outputted to the memory 3. The memory 3 has capacity for storing the video signal by two horizontal lines and the writing and reading of this memory 3 are controlled by a controller 4. The controller 4 controls the A/D converter 2 and a D/A converter 5 and also controls the writing and reading of the memory 3. Namely, the read speed is controlled to 4/3 time as fast as the write speed.
Patent JP-H02184665-A (JP)
Title: Phthalonitrile-based compound and production thereof
Inventor: ENOMOTO TSUYOSHI
IPC: C07C319/14
Filed: 1989-01-12
Abstract: NEW MATERIAL:A phthalonitrile-based compound shown by formula I (R is straight-chain or branched alkyl) R' is nonsubstituted or substituted aryl). EXAMPLE:3,6-Dioctyloxy-4,5-diphenylthiophthalonitrile. USE:Useful as an intermediate for color material. A thin film of phthalocyanine compound synthesized from this phthalocyanine-based compound has high reflectance and is usable as optoelectronics material such as optical recording medium, optical card, laser printer, near infrared absorbing filter, protecting safety goggles. PREPARATION:A 3,6-dialkoxy-4,5-dichlorophthalonitrile shown by formula II is reacted with a compound shown by formula III in the molar ratio of this compound to the compound shown by formula II of 1.5-4.0, preferably 1.8-2.5 in the presence of a base in a solvent such as dimethylformamide to give a compound shown by formula I.
Patent JP-H10193525-A (JP)
Title: Film having gas barrier properties
Inventor: ONO MITSUMASA
IPC: B32B27/36
Filed: 1997-01-13
Abstract: PROBLEM TO BE SOLVED: To lower moisture permeability by a method wherein at least one layer of a laminated structure of two layers or more is made a layer constituted mainly of polyethylene-2,6-naphthalate resin and another layer is made a layer constituted mainly of EVOH resin, while a steam permeability coefficient of a film is made a specific value or below. SOLUTION: At least one layer of a laminated structure of two layers or more constituting a film having gas barrier properties is made a layer constituted mainly of polyethylene-2,6-naphthalate (2,6-PEN) resin and at least one of other layers is made a layer constituted mainly of ethylene-vinyl alcohol copolymer (EVOH) resin. A steam permeability coefficient of this film having gas barrier properties is made 5×10<-13> g.cm/(cm<2> .sec.cmHg) or below. The layer constituted mainly of the 2,6-PEN resin is made about 50wt.% or more of the whole resin constituting the layers. According to this constitution, the film having gas barrier properties which is excellent in moisture permeation preventing properties and mechanical strength is obtained.
Patent JP-S58122243-A (JP)
Title: Fitting structure of weather strip
Inventor: ARISHIMA TOSHIROU
IPC: B60J1/14
Filed: 1982-01-13
Abstract: PURPOSE:To improve sealing performance by a method wherein a top end of a flange on which a weather strip is fixed, is formed in L-shape section, and adhering pressure of a window panel is applied in engaging direction. CONSTITUTION:A flange 13 is formed by jointing an outer panel 11 and an inner panel 12 at a window opening part. A top end part 15 of the flange 13 is formed nearly L-shape section, with a weather strip 4. The weather strip 4 presses a seal lip 42 to a window panel 3, also provides a seal material 43 inside of a top end part 15 of the flange 13. By forming the flange in L-shape, engaging force of the weather strip 4 is naturally increased, thereby, its sealing performance is improved, leakage of water is prevented.
Patent JP-S5322475-A (JP)
Title: Watch adjuster apparatus
Inventor: KAMIJIYOU NORIYUKI
IPC: G04C9/08
Filed: 1977-01-17
Abstract: PURPOSE:To eliminate the conventional unnatural feel of stopping the hour, second hands at the 59-second position and correcting the time by providing such adjustment mechanism which simply requires beforehand stopping the hour, second hands in the zero-second position and depressing the winding stem, etc. at the same instant of time announcement.
Patent JP-S62161299-A (JP)
Title: Speaker driving device
Inventor: KITO HIROSHI
IPC: H04R3/00
Filed: 1986-01-10
Abstract: PURPOSE:To improve efficiency of driving of a speaker by driving a speaker by output of the first and second amplifiers outputted through a switching circuit. CONSTITUTION:When an input signal V1 is inputted to an amplifier A1, the output signal is applied to a speaker SP through a coupling capacitor C1 and a field effect type transistor FET1 of an state. At the same time, the output state of the amplifier A1 is detected by the action of an AC signal detecting circuit D1, and an npn transistor Q1 is made on through a base resistor RB1, and the speaker can be sounded in large volume with small loss of electric power. Conversely, when an input signal V2 is inputted to an amplifier A2, the output signal is applied to the speaker SP through a field effect type transistor FET2 of on state, and at the same time, the FET transistor FET1 is made off by the action of an AC signal detecting circuit D2, and an npn transistor Q2. Thus, the output circuit of the amplifier A1 which is not operating does not become a load, and the speaker SP is sounded at high efficiency.
Patent JP-S63173364-A (JP)
Title: Semiconductor device
Inventor: TAKIGAMI KATSUHIKO
IPC: H01L29/744
Filed: 1987-01-13
Abstract: PURPOSE:To make the surface distribution of a current flowing from a gate electrode to a contact plate almost uniform, and prevent breakdown of an element caused by alloying and the like, by arranging a silicide film having a specific resistance higher than a gate electrode metal, on the periphery of a contact plate of a center gate type GTO. CONSTITUTION:A surface (surface A) contacting with a gate electrode out of two surfaces of a contact plate composed of an Mo plate, a W plate, etc., is subjected to sputtering by applying a target in which molibdenum and silicon Si are mixed with a specified ratio, and processed at a high temperature to form a silicide film (MoSi2) 20. A photo resist film 21 is spread, and its central part is eliminated by an etching method. When the left resist film is exposed at a high temperature, the inside is deformed and the film thickness is made nonuniform. Finally, the silicide film 20 is subjected to etching by applying a resist film, and the silicide film 20 is left in the form of a belt. A gate electrode metal wherein the above contact plate 6 is applied to a semiconductor substrate does not contact with the periphery of the contact plate, but is connected via MoSi2. For example, in the case where the gate metal is Al, a gate current flows through Al, and is divided to flow also into the central part.
Patent JP-H09197599-A (JP)
Title: Silver halide photographic sensitive material
Inventor: SHOJI TAKEHIKO
IPC: G03C1/04
Filed: 1996-01-12
Abstract: PROBLEM TO BE SOLVED: To obtain specified sensitivity and dryability even in the case of shortening processing time by incorporating a specified amount of carboxyalkylnitrocellulose in at least one of hydrophilic colloidal layers. SOLUTION: The silver halide photographic sensitive material has at least one silver halide emulsion layer on one side of of a support and at least one of the hydrophilic colloidal layers contains the carboxyalkylnitrocellulose in an amount of 10-70weight% and optimum addition amounts of each layer containing it vary somewhat due to the function of each layer, and the total amount of it is 10-70weight%, preferably, 20-50weight% of the total amount of binders of the layers containing it.
Patent JP-H06209657-A (JP)
Title: Horticultural plastic house good in both air permeability and thermal insulation
Inventor: UENO KATSUTOMO
IPC: A01G9/14
Filed: 1993-01-13
Abstract: PURPOSE:To provide a horticultural plastic house for raising field crops or horticultural plants, avoiding wind and rain, good in air permeability, retaining moderate humidity, excellent in thermal insulation, rich in scattered light, and capable of blocking insect pest invasion. CONSTITUTION:The roof 4a of a plastic house A consists of a covering material S made up of (A) a meshy sheet constituted of transparent synthetic fiber filament yarns and (B) a transparent synthetic resin lower in melting point than the filament yarns and having high-frequency fusibility bound to the filament yarns, and agricultural films F are stretched over the sidewalls 4b, 4b' and frontages 4c, 4c'.
Patent JP-H10194580-A (JP)
Title: Sorter
Inventor: TODOKI KENJI
IPC: B65H39/105
Filed: 1997-01-14
Abstract: PROBLEM TO BE SOLVED: To provide a sorter for stacking therein sheet members in order in proper posture. SOLUTION: A sorter 19 comprises bins 22 for receiving and stacking thereon sheets of sensitized material 50a fed thereto by a feed conveyor 18, and a circulating mechanism turned by a drive means. The bins 22 are supported on the circulating mechanism so as to receive the sensitized material 50a on the circulating path of the circulating mechanism. The sorter 19 is further provided with a means of controlling the step between the feed surface of the feed conveyor 18 and the stacking surfaces of the bins 22 on which the sensitized material 50a is stacked.
Patent JP-2000209060-A (JP)
Title: Cylindrical piezoelectric vibrator
Inventor: ARAI TAKAO
IPC: H05K1/18
Filed: 1999-01-11
Abstract: PROBLEM TO BE SOLVED: To eliminate the deformation of the lead terminals after a piezoelectric vibrator is mounted on a circuit board. SOLUTION: Two lead terminals 1 which are drawn out of a cylindrical piezoelectric vibrator are cranked toward the outside from the center axis set in the lengthwise direction of the vibrator with respect to this direction. Then the tip parts of the terminals 1 are bent into a cranked shape in parallel to the lengthwise direction of the vibrator. The tip parts of the terminals 1 are inserted into a circuit board and soldered there so that the vibrator stands upright on the circuit board. In such a constitution, a part of the vibrator and the cranked terminals 1 are stored in an insulating member 8 whose end face touching the circuit board is set rectangular to the lengthwise direction of the vibrator.
Patent JP-H06216636-A (JP)
Title: Monopulse tracking antenna
Inventor: IIDA MITSUMOTO
IPC: H01Q3/02
Filed: 1993-01-14
Abstract: PURPOSE:To provide a monopulse tracking antenna which is capable of proof- reading an antenna coordinate axis with accuracy without an external collimation equipment. CONSTITUTION:A double reflecting mirror antenna is composed of a main reflecting mirror 1, a sub-reflecting mirror 2 and a primary radiator 3 and receives a tracking signal. This tracking signal is supplied to a tracking signal detection circuit 6 and the circuit 6 generates a sum signal and a difference signal. A tracking signal processing circuit 1 detects the azimuth error and elevation error of the tracking signal for the antenna axis (z) of the double reflecting mirror antenna in response to these sum signal and difference signal. In this monopulse tracking antenna, a probe antenna 5 is provided on the sub- reflecting mirror 2 at an arbitrary offset angle. The antenna axis (z) of the double reflecting antenna can be proofread because the circuit 7 generates error voltage ed (AZ) and ed (EL) corresponding to the offset angle of the antenna 5 when the antenna 5 radiates the beacon wave S from a beacon oscillator 4 radiates to a primary radiator 3.
Patent JP-H07210035-A (JP)
Title: Registration control method and color electrophotographic device
Inventor: NAKANO MASARU
IPC: G03G15/00
Filed: 1994-01-20
Abstract: PURPOSE:To provide a color electrophotographic device capable of preventing displacement in the direction perpendicular to the carrying direction of a photoreceptor even when twist occurs between a fixed shaft supporting the photoreceptor and the supporting shaft of an intermediate transfer body and obtaining an excellent image without color slurring nor irregular color. CONSTITUTION:At the time of forming a toner image after starting the photoreceptor 14, a fur brush cleaner 41 consisting of a conductive brush is separated from a transfer drum 40 so as not to perform cleaning till the time just before the toner image is transferred and shifted to the drum 40 from the photoreceptor 14, whereby fine toner remains on the drum 40, and the surface of the photoreceptor 14 is exposed by a fade lamp 20 simultaneously, then charge on the photoreceptor is removed.
Patent JP-S58123893-A (JP)
Title: Surface treated steel plate
Inventor: KOKUBO ICHIROU
IPC: C25D5/26
Filed: 1982-01-14
Abstract: PURPOSE:To obtain a surface treated steel plate having excellent paintability  and corrosion resistance, by providing an Fe or Fe-Zn plating layer on a sacrificial corrosion resistant plating layer of Zn, etc. on one side of a steel plate. CONSTITUTION:A sacrificial corrosion resistant plating layer of the 1st layer is formed on one side of a steel plate at about >=1g/m<2>, more preferably about >=5g/m<2> coating weight, for which zinc electroplating, galvanizing, galvanizing with alloying, Zn-Ni alloy electroplating contg. about 2-20% Ni, Zn-Fe alloy electroplating contg. about 5-60% Fe, Zn-Al alloy hot dipping contg. about 5- 70% Al, zinc electroplating contg. about 0.01-1% Co, Cr, Mo, etc. are used. An Fe plating layer or an Fe-Zn alloy plating layer contg. about <=85% more preferably about <=70% Zn is formed as the 2nd layer to be provided on the 1st layer at about >=0.3g/m<2>, more preferably about >=1.0g/m<2> coating weight.