baber/WOPTO huggingface dataset:
Patent JP-H07225907-A (JP)
Title: Production of magnetic head
Inventor: SATO HEIKICHI
IPC: G11B5/23
Filed: 1994-02-09
Abstract: PURPOSE:To produce a magnetic head which is suppressed in variation in electromagnetic conversion characteristics, lessens a change in track width and has high reliability by eliminating an operation to obtain a reference plane in a stage for working track width regulating grooves and a stage for grinding to a mirror finished surface, simplifying production processes and stabilizing the depth size of the track width regulating grooves. CONSTITUTION:A magnetic core substrate 1 formed with a winding groove 3 and a magnetic core substrate 2 not formed with this winding groove are both lined up horizontally at the time of producing the magnetic head. While a rotating grinding wheel 4 is vertically moved in a direction approaching to one-side main surfaces 1a, 2a of both magnetic core substrates 1, 2 and a direction parting therefrom, the track width regulating grooves 5, 6 are simultaneously formed on these magnetic core substrates 1, 2 only in the parts near the medium-sliding surface for making sliding contact with magnetic recording media.
Patent JP-H05210224-A (JP)
Title: Silver halide color photosensitive material
Inventor: YABUUCHI KATSUYA
IPC: G03C7/20
Filed: 1992-01-30
Abstract: PURPOSE:To provide a silver halide color photosensitive material which is improved in the color reproducibility of yellow color and is excellent in the processing variation. CONSTITUTION:In the silver halide color photosensitive material having photosensitive silver halide emulsion layers for red sensitivity, green sensitivity and blue sensitivity on a substrate, at least one layer of the blue sensitive silver halide emulsion layer incorporates an yellow coupler represented in formula, where R<1> denotes an alkyl group, cycloalkyl group, and aryl group and R<2> denotes an alkyl group, cycloalkyl group and aryl group, R<3> denotes a substituent, X<2> denotes a coupling released group and Y<2> denotes a ballast group, and also the blue sensitive silver halide emulsion layer is composed of plural layers with different sensitivities, and in the silver halide color photosensitive material, a silver quantity ratio between two layers of at least adjacent one pair based on the low sensitivity side layer is made to >=1.5.
Patent JP-H05211052-A (JP)
Title: Pulse electron gun
Inventor: YASUI SUKEYUKI
IPC: H01J37/073
Filed: 1992-01-30
Abstract: PURPOSE:To provide a pulse electron gun which has high repeatability, allow the width of electron beam to be easily increased or decreased to efficiently generate electron beam. CONSTITUTION:An insulator 20 is disposed between the wall of an ionization chamber 12 and the wall of a device 4 and a bias voltage source (not shown) for providing electric potential difference is connected between the wall of the ionization chamber 12 and the wall of the device 4. The bias voltage source allows the electric potetial of the ionization chamber to stay higher than that of the device.
Patent JP-S59140729-A (JP)
Title: Pulse signal transmitter
Inventor: HIRAGA MASATOMI
IPC: H04B3/04
Filed: 1983-01-31
Abstract: PURPOSE:To obtain a pulse signal transmitter which performs the same operation as before by an inexpensive circuit with small circuit scale by using a fixed gain amplifier, impedance converter, and adding circuit. CONSTITUTION:A transmission part A transmits pulses by turning on and off an open collector transistor (TR) Q1. A reception part B is provided with the fixed gain amplifier 3 whose gain is fixed to 1, emitter-follower type impedance converter 4, and 2-input adding circuit 5. The addition ratio of two inputs is set depending upon the gain of the amplifier 3. Namely, when the gain of the amplifier 3 is denoted as G, the ratio of resistances R2 and R3 is R2:R3=(2X G):1. Therefore, R2:R3=2:1 because G=1. In this case, two input signals are passed through terminals 5a and 5b and added together to obtain an output signal Vout=(-2r/2r+R0.V0-VBE)+ 2.(r/2r+R0.V0-VBE)=-3VBE; when the TRQ1 is off, a signal -(V0+3VBE) appears at a terminal OUT and is received as a constant-amplitude signal.
Patent JP-H08207016-A (JP)
Title: Silica-impregnated wood and manufacture thereof
Inventor: KODAMA AKIKO
IPC: B27K3/02
Filed: 1995-02-01
Abstract: PURPOSE: To obtain building wood, which has high strength and rotproofing-, mothproofing-, ant-proofing-, mildewproofing-properties and flame retardancy. CONSTITUTION: Dried woods 12a,...12d are bound with string 14 under the state being interposed by spacers 13 and put in an impregnating chamber 11 and sealed. By operating cocks 19 and 20, the impregnating chamber 11 is evacuated so as to evacuate the lumina of the wood texture of the wood 12. The wood 12 in the evacuated impregnating chamber 11 is immersed in impregnating solution 16 (or colloidal solution of silica particle blended with boron compound) stored in a container 15. After that, by bringing the pressure in the impregnating chamber 11 to the normal pressure, the impregnating solution is infiltrated in the wood texture. Then the wood 12 is taken out of the chamber and dried at the temperature not more than 60 deg.C.  Since the impregnating solution is prepared by mixing boron compound with the colloidal solution of silica particle, the silica particle-impregnated wood consists of the wood 12, non-combustible and high strength silica and rotproofing-, mothproofing-, ant-proofing- and mildewoproofing-boron compound.
Patent JP-H03219491-A (JP)
Title: Semiconductor memory device
Inventor: ASAKURA MIKIO
IPC: G11C11/409
Filed: 1990-01-24
Abstract: PURPOSE:To accelerate the amplifying operation of a sense amplifier by energizing the transistor(TR) for transfer gate of a pair of bit lines when memory information is read out, and setting it in a required energized state when the sense amplifier is activated. CONSTITUTION:When a sense amplifier activation signal phiSA is L, the transistor TR3 is turned off, and TRs TR1 and TR2 are turned off and on via inverters IV1 and IV2, respectively. Then, P-type transistors Q6 and Q5 connected to the bit line BL, and the inverse of BL are turned on, and readout information in a memory cell is supplied to the sense amplifier SA. Next, when the signal phiSA goes to H and the sense amplifier is activated, the TRs TR1 and TR2 are inverted to on and off states, respectively, and the TRs Q5 and Q6 are turned off by a voltage Vref set at the sum of the potential of an output node VOUT1 or VOUT2 when the bit line is separated from the output node and the different threshold potential of the TRs Q5 and Q6. In such a way, it is possible to perform the amplification of the sense amplifier at high speed without affecting on the incidental capacity CB of the bit line BL and the inverse of BL.
Patent JP-H05218452-A (JP)
Title: Electrostatic induction type semiconductor device
Inventor: YAMAMOTO MUNEKORE
IPC: H01L29/80
Filed: 1992-01-30
Abstract: PURPOSE:To enhance an electrostatic induction type semiconductor device in dielectric breakdown strength keeping it high in current amplification factor by forming an epitaxial layer as thin as possible and to protect a source junction against damage caused by breakdown when a reverse bias voltage is impressed. CONSTITUTION:A P<->-type impurity-containing region 37 and an N<+>-type impurity containing region 38 of the same conductivity type and structure with a P<->-type channel region 27 and an N<+>-type source region 28 respectively are provided to a P<+>-type gate region 25# adjacent to a P<+>-type guard ring region under a gate electrode. The N<+>-type impurity-containing region 38 formed into a stripe is provided surrounding the channel region 27 and the source region 28 and connected to a gate electrode. When a reverse bias voltage is applied, a current generated due to breakdown flows into the N<+>-type impurity containing region 38 and is prevented from flowing into the N<+>-type source region 28 located adjacent to an effective semiconductor region. Therefore, a source junction of fine structure is protected against damage.
Patent JP-H10214818-A (JP)
Title: Dry type resist peeling method and dry type resist peeling device using the same
Inventor: YAMAMOTO YUICHI
IPC: H01L21/3065
Filed: 1997-01-29
Abstract: PROBLEM TO BE SOLVED: To complete peeling of resist on the entire surface of a photo plate within a single step, without adding a step for peeling a resist on the end part of a substrate in a dry type resist peeling step. SOLUTION: In a dry type resist peeling device 1 comprising a peeling chamber 2 filled with oxygen, an upper electrode 3, a lower electrode 4, etc., a replaceable cartridge type plasma converging jig 6 having approximately the same outer circumference as that of a photo plate 5 is provided around the photo plate 5 placed on the lower electrode 4, and a plasma is concentrated to the end part of a substrate where peeling speed is low, without reducing the peeling speed at the central part of the upper surface of the photo plate 5, so that particularly the peeling speed of resist on the end part of the photo plate 5 is made higher.
Patent JP-H02197463-A (JP)
Title: Steering control device for running work truck
Inventor: KIMURA AKEMASA
IPC: B62D15/02
Filed: 1989-01-24
Abstract: PURPOSE:To prevent generation of an unexpected accident by constituting a device so as to actuate a turn direction display means in a turn direction side before the action of a machine body when it is placed in a turn process, in the case of a running work truck of teaching playback system driven by an automatic control with drive control information. CONSTITUTION:A tractor, in reciprocating work performing a 180 deg. change of direction along a ridge between rice fields or in the turn work performing a 90 deg. change of direction in a location corresponding to an angular part of the rice field, alternately repeats a straight advance and turn processes. In the turn process, various detection data are stored in a memory in a control unit 10 as the steering control information, while it is processed as the reverse directional turn information similarly stored. Thereafter, the turn work of a machine body is automatically controlled by alternately reading each information. Now in a transfer to the turn process of the machine body, its turn is predicted by actuating before action of the turn process a turn direction display means (winker) 18 in a turn direction side.
Patent JP-H06202351-A (JP)
Title: Electrophotographic sensitive body
Inventor: KOBAYASHI TOMOO
IPC: G03G5/05
Filed: 1993-01-05
Abstract: PURPOSE:To provide an electrophotographic sensitive body capable of giving copied images having excellent image quality over a long period of time even when the sensitive body is repeatedly used in a printer because a bonding resin used ensures satisfactory productivity, has satisfactory solubility especially in a solvent, prepares a coating soln. having satisfactory aging stability without gelling, has high compatibility with an electric charge transferring material and an electric charge generating material and forms a uniform coating film. CONSTITUTION:This electrophotographic sensitive body has a photosensitive layer contg. polyiminocarbonate resin having repeating units represented by formula I or II as a bonding resin. In the formulae I, II, each of R1 and R2 is H an, alkyl, etc., R1 and R2 may be a group of atoms required to form a carbon ring or a lactone ring, X is -S-, -0-, etc., and each of R3-R6 is H, a halogen, alkyl, aryl, etc.
Patent JP-H08208140-A (JP)
Title: Controller for elevator
Inventor: ONUMA NAOTO
IPC: B66B1/34
Filed: 1995-02-02
Abstract: PURPOSE: To reduce the cavity of a smoothing capacitor provided between a converter and an inverter by restraining the fluctuation in voltage of the capacitor. CONSTITUTION: A converter input power computation device 21 computes the input power pattern PCNV of a converter 3 from the speed command value ω1* of an A.C. motor 6 and a load W in a cage, and a converter input power command PCNV* where the lag time of a converter control system is compensated is prepared from the computed power pattern PCNV and is outputted to a converter controller 20. The converter controller 20 conducts converter control utilizing the inputted power command PCNV* to reduce the fluctuation in voltage of a smoothing capacitor 4 and minimize its capacity.
Patent JP-H04241551-A (JP)
Title: Customer station equipment for telephone
Inventor: YOGOSHI SHIGEO
IPC: H04M1/72
Filed: 1991-01-14
Abstract: PURPOSE:To obtain the customer station equipment for telephone which can use general telephone sets and wirings for telephone. CONSTITUTION:A customer station equipment 1 for telephone is installed between a subscriber line from a telephone exchange station and the wiring for customer station telephone and composed of line connecting means 2-7 to disconnect the wiring for customer station telephone from the subscriber line when receiving a specified dial signal from the telephone set, to supply a current for speaking to the wiring for customer station telephone and to transmit a call signal, and a control circuit 8 to control the operations of the above- mentioned line connecting means.
Patent JP-H04241732-A (JP)
Title: Engine having supercharger
Inventor: YOSHIOKA MAMORU
IPC: F02B37/18
Filed: 1991-01-14
Abstract: PURPOSE:To suppress the lowering of a supercharging pressure at the time of switching operation number of turbochargers from one to two by opening an exhaust bypass valve earlier than a waste gate valve. CONSTITUTION:In an engine having supercharger, an exhaust bypass valve 41 and a waste gate valve 31 are respectively composed of swing arm valves opening to a downstream side of exhaust. Supercharging pressures of substantially same values are introduced to actuators 9, 42 respectively connected to the exhaust bypass valve 41 and the waste gate valve 31 for opening the valves. In an exhaust system of the engine, an exhaust system passage 61 on a downstream side of a main turbocharger 7 and an exhaust system passage 65 on a downstream side of a sub-turbocharger 8 are arranged independently on each other.
Patent JP-H08128773-A (JP)
Title: Humidity regulator for refrigerator
Inventor: TOMIOKA TOSHIICHI
IPC: F25D23/00
Filed: 1992-01-31
Abstract: PURPOSE: To always hold a predetermined humidity in a vegetable chamber by a simple structure and to effectively control the atmospheric humidity by installing silica gel specified in pore size and pore volume in the vegetable chamber of a refrigerator together with a supply water tank. CONSTITUTION: A humidity regulator has a moisture permeable film 2 made of polyester fiber nonwoven fabric, etc., having a predetermined thickness in a housing 1, and silica gel 3 having a pore size of 50 to 200 Angstrom and pore volume of 0.5 to 2.0ml and filled therein. A supply water tank 4 is installed in the bottom of the housing 1, and a cut-out window 5 for observing the water level is formed. Further, the regulator is installed in the vegetable chamber of a refrigerator. Thus, as the humidity of the chamber is lowered, the moisture included in the gel 3 is rapidly radiated through a moisture permeable film 2.
Patent JP-H04330677-A (JP)
Title: Head positioning device
Inventor: MATSUYOSHI YASUHIRO
IPC: G11B21/08
Filed: 1991-02-07
Abstract: PURPOSE:To facilitate that a head is always positioned in the same position, to simplify a control system and to speed up a head positioning speed. CONSTITUTION:A pulse motor a5 with high angle reproducibility is used for a conventional head positioning device, and a memory 6 storing the number of pulses outputted to the pulse motor a5, and a control means 7 reading data stored in the memory 6 and driving the pulse motor a5 by the data are given. The control means 7 reads the number of the output pulsess of the pulse motor a5 in respective track positions from an original position stored in the memory 6 by first driving, calculates the number of the necessary pulses for moving it from a present position to a targe position and drives the pulse motor a5 in second and succeeding times. The head is positioned at an angle similar to that when positioning is executed in first driving without using the output signal of a rotary encoder a3 in second and succeeding times.
Patent JP-S54109613-A (JP)
Title: Fan
Inventor: SATOU KOUICHI
IPC: F04D29/42
Filed: 1978-02-17
Abstract: PURPOSE: To damp vibration by fixing a rib at the back of a scroll nose, which provides high rigidity of fixed foot for supporting a motor.  
     CONSTITUTION: A scroll 16 consists of a side wall 17, an external wall 18, and an inwall 19 near the outlet. A resin-made rib 21 constituted of a lateral rib 22 and a longitudinal rib 23 perpendicular to it is united with the scroll 16 at a concavity back of a nose 20 formed on a point where the start point of the external wall 18 meets the inwall 19. One of three female screws 9 for mounting a motor on the side wall 17 is provided on the rib 21 and the three 9 are positioned apart from the edge of a hole 8 in which a fan 1 is put and come near the external wall 18 of the scroll. The foot 10 to support a motor is fixed on the side wall 17 of the scroll 16 by positioning three screws at those points rigid enough to mount. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H05210150-A (JP)
Title: Camera
Inventor: TANIGUCHI HIDENORI
IPC: G03B17/18
Filed: 1992-01-31
Abstract: PURPOSE:To prevent a release time lag by giving a warning by a display means in the case that pre-irradiating time is equal to or under a specified value and performing release without giving the warning in the case that it is equal to or above the specified value. CONSTITUTION:When a battery 1 is inserted, a power source VDD is applied to a sequence controller 5 through a diode 3, a specified powering-up clear circuit works, and the sequence controller 5 starts actions. At such a time, a RAM in the sequence controller 5 is initialized, and a program for detecting the states of switches 16-20 is executed. In such a case, the state of a timer is examined while detecting the states of the respective barrier switches 16, 17 and 18. When the state of the timer shows equal to or under the specified value, an LED 8 is flickered. When it is equal to or above the specified value, a lamp 6 is switched from flickering to lighting, and monitoring the switches 16, 17 and 18 is continued.
Patent JP-S57129789-A (JP)
Title: Heat sensitive transferring material
Inventor: SHIMAZAKI RIYOUICHI
IPC: B41M5/42
Filed: 1981-02-05
Abstract: PURPOSE:To obtain the heat sensitive transferring material which can be smoothly moved by providing a resinous layer including a surface active agent or organic salt on an ink layer having heat sensitive transferrying property through a base film layer. CONSTITUTION:The heat sensitive transferring material 11 comprises the ink layer 3 having the heat sensitive transferring property, the base film 4, and the resinous layer 8 including the solid state or semi solid state surface active agent or organic salt. As for the surface active agent, stearyl sodium sulfate, polyoxyethylene stearyl ether, and the like are used. As for the organic salt, aluminum stearate, hexyl ammonium chloride and the like are used. The sliding property of said heat sensitive transferring material 11 with respect to a thermal head is improved to the large extent. Since the surface active agent or the organic salt acts as a separating agent, occurrence of sticking phenomenon is prevented. Generation of static electricity can be prevented by said surface active agent on the organic salt.
Patent JP-H02196032-A (JP)
Title: Production of superconductor
Inventor: YOSHIOKA NOBUYUKI
IPC: C01G1/00
Filed: 1989-01-26
Abstract: PURPOSE:To obtain the superconductor maintaining stable superconductivity at the liquefied nitrogen temp. by mixing a calcined mixture of Bi oxide powder and lead oxide powder with a calcined mixture of Sr compd. powder, Ca compd. powder, and copper oxide powder, forming the mixture, and sintering the formed product. CONSTITUTION:A mixture of Bi oxide powder and lead oxide powder is calcined at a temp. lower than the sintering temp., and then crushed to obtain processed powder (A). A mixture of the powder of an Sr compd. (e.g. SrCO3), the powder of a Ca compd. (e.g. CaCO3), and the powder of copper oxide is calcined at a temp. lower than the sintering temp., and then crushed to obtain processed powder (B). The component A and the component B are mixed, the mixture is press-formed, and the formed product is sintered at 830-880 deg.C in an oxidizing atmosphere to obtain a Bi-Pb-Sr-Ca-Cu-O-based superconductor in which the atomic ratios are controlled to Sr:Ca=1:0.3-3, (Bi+Pb):Cu=1:1.8-4, Bi:Pb=1:0.1-0.4, and (Sr+Ca):(Bi+Pb+Cu)=1:1-2.
Patent JP-2000210709-A (JP)
Title: Method for descaling hot rolled steel strip
Inventor: OKANO TETSUHIKO
IPC: B21B45/00
Filed: 1999-01-26
Abstract: PROBLEM TO BE SOLVED: To improve the efficiency of descaling by mechanical descaling by reforming scale by executing reduction-annealing of a hot rolled steel strip before cold rolling. SOLUTION: After annealing the hot rolled steel strip in a reducing atmosphere for reducing the outer layer 1 of the scale to Fe, the hot rolled steel strip is cold-rolled, next, the scale layer is peeled off from the surface of the steel strip by brushing, spraying of high-pressure water, shot-blasting or adhesive peeling. As an annealing atmospere, the atmoshere containing >=75 vol.% H2 or the like is used. Then, since the outer layer and interfacial layer 3 of the scale is reduced to ductile metal Fe, the scale layer is peeled in a film shape from the surface of the steel strip.
Patent JP-H11339309-A (JP)
Title: Optical head, manufacturing method of optical separation means of the head and manufacturing device of the head
Inventor: NAGANO TSUTOMU
IPC: G11B7/123
Filed: 1999-01-26
Abstract: PROBLEM TO BE SOLVED: To provide the optical head whose thickness is reduced, while improving the degree of light utilization and the productivity and reducing the track error signals intruding into focus error signals. SOLUTION: The light beams, which are emitted from a laser diode chip 1 and polarized into a (y) direction, are made incident on a prism 7, passed through first and second inner surfaces 7a and 7b, converted into circularly polarized beams by a quarter wavelength plate 7c and converged onto a medium by a lens. The reflected light beams by the medium are reversely advanced in the same optical path, converted into the polarized light beams in an (x) direction by the plate 7c, one half of the light quantity is reflected on the surface 7b and the other half is passed. The reflected light beams on the surface 7b are made incident on a photodiode chip 6 and received by the light receiving section formed on the chip 6. The light beams passed through the surface 7b are reflected on the surface 7a, made incident on the chip 6 and received by the light receiving section.
Patent JP-S53102695-A (JP)
Title: Manufacture for composite super conductor
Inventor: SHIRAKI KAZUO
IPC: H01L39/06
Filed: 1977-02-18
Abstract: PURPOSE: To realize the manufacturing method of the composite super conductor easy for manufacturing and high in critical current density. 
     COPYRIGHT: (C)1978,JPO&Japio