baber/WOPTO huggingface dataset:
Patent JP-H08337489-A (JP)
Title: Production of semi-insulating gallium arsenide single crystal and device therefor
Inventor: SHIMIZU EIJI
IPC: C30B13/16
Filed: 1995-06-13
Abstract: PURPOSE: To produce a GaAs single crystal having high resistivity and semi- insulating property as a single crystal having low dislocation density grown by a vertical boat method. CONSTITUTION: A GaAs seed body 2, metal As 4 put. in a molten As receiver 3 as a recessed column, GaAs polycrystals 5 as starting material and B2 O3 as a sealant 6 are arranged in a vertical boat 1 in order from the bottom of the boat 1. The boat 1 is set in a high pressure furnace, the starting material is melted by heating and a GaAs single crystal is grown while controlling the temp. gradient of the solid-liq. interface and the rate of crystal growth.
Patent JP-S6325338-A (JP)
Title: Intake air amount control device for engine
Inventor: SAKAMOTO KATSUHIKO
IPC: F02D41/12
Filed: 1986-07-18
Abstract: PURPOSE:To prevent the occurrence of an engine stop and blowup, by a method wherein, when, during an acceleration state, an intake air amount is increase compared with that during an idling state, the degree of increase is increased depending upon an increase in an external load. CONSTITUTION:In addition to an intake air amount signal Sa from an airflow sensor 11, a throttle opening signal St from a throttle opening sensor 18, a number of revolutions signal SN from a number of revolutions sensor 27, and a cooling water temperature SW from a water temperature sensor 34, an external load signal SZ from an external load charge switch 33 is inputted to a control unit 100. During idle running, based on the signals, feedback control is made on a flow rate regulating valve 16 in a throttle bypass passage 15 so that the number of revolutions is adjusted to a target value. When a throttle valve 13 is fully closed and the number of revolutions exceeds a given value, an engine is decided to be in a deceleration state, increase correction is made on the flow rate regulating valve 16, but when the external load charge switch 33 is brought into an ON-state, the degree of increase is increased.
Patent JP-H069714-A (JP)
Title: Photopolymerizable composition and production of light control board
Inventor: HOZUMI SHIGEO
IPC: C08F2/48
Filed: 1992-06-29
Abstract: PURPOSE:To obtain a photopolymerizable composition for use in producing a light control board which selectively scatters light rays incident thereon at angles in a specific range by using a combination of a radical-polymerizable compound and a cationically polymerizable compound having a vinyl ether structure as a functional group. CONSTITUTION:The composition comprises a combination of at least two polymerizable compounds having different refractive indexes, the compounds being a radical-polymerizable compound (a) and a cationically polymerizable compound (b) having a vinyl ether structure as a functional group. Examples of the compound (a) include tetrahydrofurfuryl acrylate, ethyl carbitol acrylate, and N-vinylpyrrolidone. Examples of the compound (b) include methyl vinyl ether, propyl vinyl ether, and vinyl cyclohexyl ether.
Patent JP-S6061987-A (JP)
Title: Semiconductor memory
Inventor: SHIMIZU HIROSHI
IPC: G11C11/41
Filed: 1983-09-14
Abstract: PURPOSE:To ensure the extremely stable operation of a semiconductor memory with no use of a clock for drive by providong a latch circuit to an output buffer circuit. CONSTITUTION:It is supposed that the data of a flip-flop consisting of T1-T4 is defined as N1=H and N2=L respectively. Thus the final stage transistor T12 is off with a T13 turned on to on L level. Then data defined as D=H and D'=L are transmitted. Thus T15, T6, T7 and T8 are turned off, on, on and off respectively. In other words, N1=L and N2=H are satisfied and the data of a latch is inverted. With this inversion, the H level appears at an output. Then T5-T8 are all turned off in a precharge state, i.e., under the conditions D=D'=H. This gives no effect to the state of the flip-flop. Therefore this circuit holds the previous information unless the data changes. An OE is usually set at the L, and the H level is inpressed to attain the floating state of the output.
Patent JP-2000031001-A (JP)
Title: Manufacturing facilities for semiconductor device, pattern formation of semiconductor device using the same, and photoresist for semiconductor manufacture to which the facility is applied
Inventor: JEOUNG GYU-CHAN
IPC: G03F7/20
Filed: 1999-06-17
Abstract: PROBLEM TO BE SOLVED: To provide the manufacturing facilities for semiconductor devices which form a pattern of preferred size, a pattern forming method for the semiconductor devices, and a photoresist for semiconductor manufacturing which utilize them. SOLUTION: Manufacturing facilities 30 are equipped with a photoresist coating part 36 which coats a wafer with specific photoresist, a development part 4 which forms a photoresist pattern on the wafer exposed after being coated with the photoresist, and a cross-linking reaction part which submits the photoresist pattern to cross-linking reaction so as to provide a stable flow in a flow process of the photoresist pattern. Furthermore, a stage for coating the wafer with the photoresist, a stage for exposing the photoresist while a photomask is arrayed, a stage for forming the photoresist pattern on the wafer, a stage for submitting the photoresist pattern to cross-linking reaction, and a stage for subjecting to flow baking of the photoresist pattern after the cross- linking reaction are included.
Patent JP-H1017710-A (JP)
Title: Earthquake-proof, highly attenuating rubber composition
Inventor: NISHIMOTO TATSUO
IPC: F16F15/08
Filed: 1996-07-01
Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition large in hysteresis loss, little in the temperature dependency of elastic modulus and useful as a rubber material for earthquake-proof buildings by using an incompatible blend comprising a polar rubber and a non-polar rubber as a polymer. SOLUTION: This rubber composition comprises the blend of (A) a rubber having an Sp value of 7.8-8.5(cal/cm<3> )<1/2> with (B) a rubber having an Sp value of 9.0-9.9(cal/cm<3> )<1/2> . The component A is preferably natural rubber or styrene- butadiene rubber, and the component B is preferably the blend of acrylonitrile- butadiene rubber with vinyl chloride. When the component A is blended with the component B, (C) a compatibilizing agent comprising a polymer containing at least one group selected from the group consisting of an acid anhydride group, a carboxyl group, an epoxy group and a dioxazoline group is preferably added.
Patent JP-H069093-A (JP)
Title: Automatic paper feeding device and recording device
Inventor: NITTA TETSUHIRO
IPC: H04N1/00
Filed: 1992-06-29
Abstract: PURPOSE:To prevent the occurrence of faulty setting and faulty paper feeding attributable to the contact of the recording sheets with paper feeding rollers when the recording sheets are replenished. CONSTITUTION:An automatic paper feeding device and a recording device is provided with a paper-feeding tray 2 for supporting recording sheets 5, semilunar paper-feeding rollers 9, 10 for sending out the recording sheets from the paper-feeding tray, and in the vicinity of the paper-feeding rollers, sheet-shaped roller guides 11, 12 for preventing the contact of recording sheets to be replenished. Thus, the contact of recording sheets with the paper-feeding rollers when the recording sheets are replenished can be prevented, so that the occurrence of faulty setting of the recording sheets and faulty paper-feeding can be prevented.
Patent JP-2000012659-A (JP)
Title: Device and method for positioning semiconductor wafer
Inventor: TOMIZUKA MICHIAKI
IPC: H01L21/68
Filed: 1998-06-18
Abstract: PROBLEM TO BE SOLVED: To prevent a semiconductor wafer and respective members of the positioning device from wearing out, and to prevent ground powder from being produced owing to the contact between the semiconductor wafer and the respective members of the positioning device. SOLUTION: This device is provided with a feed roller 4 which rotates the semiconductor wafer in a specific direction, by coming into contact with the peripheral surface of the semiconductor wafer 1 which has a V-shaped positioning cut 2 formed at the peripheral edge; a positioning roller 12 which is positioned at a distance from the feed roller 4 in the circumferential direction of the semiconductor wafer 1, and positioned in the cut of the semiconductor wafer 1 when the cut of the semiconductor wafer 1 rotated by the feed roller 4 is positioned opposite; and a receiving plate 10 where the semiconductor wafer 1 is mounted when the positioning roller 12 is positioned in the cut.  When the positioning roller 12 is positioned in the cut and the semiconductor wafer 1 is mounted on the receiving plate 10, the feed roller 4 is released from being in contact with the peripheral surface of the semiconductor wafer 1.
Patent JP-H0221305-A (JP)
Title: Electronic equipment for control
Inventor: FUJIKI MOTOI
IPC: G05B19/02
Filed: 1988-07-08
Abstract: PURPOSE:To obtain the different functions with changing of modules by transforming only a specific circuit part that realizes a specific function into a module and standardizing other parts including an operating surface and a display panel. CONSTITUTION:An exclusive program memory C is added to an exclusive module unit B, and a base module A displays a key input area on a planar display base board according to the working condition setting procedure stored in the memory C. When the position of the key input area is pressed, a planar input means D accepts an input and performs the operation in response to the module B. Then a picture of the present working state is displayed on a planar display device E. Thus it is possible to easily obtain various functions just by connecting various modules as modules B.
Patent JP-S5694538-A (JP)
Title: Controller for capstan motor
Inventor: ISHIKURA MASAO
IPC: G11B15/28
Filed: 1979-12-27
Abstract: PURPOSE:To shorten the lock-in time, by taking the time constant of phase compensation circuit of a capstan controller as less value at start and trasferring it to synchronizing state quickly. CONSTITUTION:When a pulse generator 22A generates the timing pulse P1 having a prescribed time width t1, a pulse generator 22B produces the timing pulse P2 having a prescribed time width t2, switches 21A, 21B are driven with drivers 23A, 23B and the switch 21A is on for the period of timing pulse P1 only and the switch 21B is on only at the period of the pulse P2. Then, a capacitor C is excluded from a phase compensation circuit 5, resistances R1 and R3 are connected in parallel, the time constant is reduced, and this state is kept for the period t1 of the pulse P1, the switch 21A is off at the end of the pulse P1 and the switch 21B only is on.
Patent JP-H0461491-A (JP)
Title: Solid-state image pickup device
Inventor: HIGASHITSUTSUMI YOSHIHITO
IPC: H04N5/372
Filed: 1990-06-28
Abstract: PURPOSE:To simplify the communication line and to reduce the cost of the image pickup system by sending a video signal synchronously with a television synchronizing signal to the communication line. CONSTITUTION:Solid-state image pickup devices 30 to each of which an address is given are interconnected in series with a communication line 20. The plural solid-state image pickup devices connected to the common communication line 20 are operated selectively by giving various communication data to control the operation of the solid-state image pickup devices to the solid-state image pickup devices 30 while being superimposed on a synchronizing signal for its specific period and video signals whose scanning timing is coincident are obtained from the solid-state image pickup devices 30. Thus, number of the solid-state image pickup devices 30 enabling to be designated by the number of communication data are connected to the same communication line 20 without any special circuit provision, the communication line is simplified and a large sized image pickup system is inexpensively configured.
Patent JP-S6414947-A (JP)
Title: Lead forming apparatus of semiconductor device
Inventor: UEDA HIROTAKA
IPC: H01L23/50
Filed: 1987-07-08
Abstract: PURPOSE:To make the aligning property of leads excellent after molding, by providing a lead bending stage for supporting the leads, providing a lead pusher, which can be freely moved up and down at the upper part of the lead bending stage, and forming the pushing surface of the lead pusher and the supporting surface of the lead bending stage with the surface, which is in conformity with the warping of the package of a semiconductor device. CONSTITUTION:Leads 2a of a semiconductor device 2 are supported on a supporting surface 11a of a lead bending stage 11. At this time, a lead bending punch 3 and a lead pusher 12 are positioned at the upper part of the semiconductor device 2. The Iead pusher 12 is lowered, and the leads 2a of the semiconductor device 2 are pushed on the supporting surface 11a. At this time, the supporting surface 11a of the lead bending stage 11 and the pushing surface 12a of the lead pusher 12 face the supported surface and the pushed surface of each Iead 2a. Thereafter the lead bending punch 3 is lowered, and the leads 2a of the semiconductor device 2 are bent. Thus the fabrication is performed.
Patent JP-H094979-A (JP)
Title: Combustion burner used in melting furnace in iron making operation
Inventor: ARIYAMA TATSURO
IPC: F27D7/02
Filed: 1995-06-15
Abstract: PURPOSE: To enable a stable and high efficient combustion of fuel such as fine powder coal or the like to be performed without being influenced by a state in a furnace by a method wherein an axis of a burner has an inclination angle in such a manner that an extremity end of the burner is faced downward in respect to a horizontal direction. CONSTITUTION: An entire combustion burner A is fixed to a furnace wall with an inclination angle of θ of such a degree as one in which an extremity end of the burner at its axis is faced downward in respect to a horizontal direction. A reason why such an application of the inclination angle θ is applied consists in the fact that slag generated under meiting of ashes of the fine powder coals is smoothly discharged from an extremity end opening 2 of the burner into the furnace. This inclination angle θ is preferably set to have such a value as one in which a tapered part of a pre-combustion chamber 1 is set to be horizontal or inclined downwardly at its extremity end in order to perform a smooth flowing-down operation of the slag in the pre-combustion chamber 1 toward the burner extremity end opening 2.  With such an arrangement as above, it is possible to perform a stable high efficient combustion of fine powder coal and the like supplied from a tuyere without being influenced by a state in the furnace or the like and thus it is also possible to reduce manufacturing cost of pig iron.
Patent JP-H02146042-A (JP)
Title: Photosensitive composition
Inventor: AOSHIMA KEITARO
IPC: G03F7/035
Filed: 1989-07-03
Abstract: PURPOSE:To obtain a photosensitive compsn. having superior developability for an aq. alkali developing soln. and providing a relief image having high sear resistance by incorporating a specified polyurethane resin and a photosensitive compd. having a negative effect into a photosensitive compsn. CONSTITUTION:A polyurethane resin having sulfonamide groups and being insoluble in water but soluble in aq. alkali, pref. a polyurethane resin having sulfonamide groups in the side chain and/or principal chain, and a photosensitive compd. having a negative effect are incorporated into a photosensitive compsn. Preferred polyurethane resin having the sulfonamide groups is a polyurethane resin constituted of a fundamental skeleton comprising a reaction product of a polyol compd. having >=1 sulfonamide group in a molecule with a polyisocyanate compd. Thus, a photosensitive compsn. which can be developed with an aq. alkali developing soln., and provides a planographic printing having high durability in printing, is obtd.
Patent JP-H05344017-A (JP)
Title: Radio equipment of superheterodyne system
Inventor: KANO HIDETO
IPC: H04B1/26
Filed: 1992-06-05
Abstract: PURPOSE:To provide a superheterodyne system radio equipment in which the circuit is made small in size and the power consumption is reduced. CONSTITUTION:A superheterodyne system radio equipment having at least stages of frequency conversion stages or over (1st mixer 2 and 2nd mixer 5) is provided with a fixed frequency oscillator and a mixer 22 used to down- convert an output frequency of a PLL frequency synthesizer 21, a loop of the PLL is formed by using a down-converted frequency and an output frequency of the PLL frequency synthesizer 21 is given to a 1st stage frequency converter (1st mixer 2) as a local oscillating frequency, the output frequency of the fixed frequency oscillator 24 is frequency-divided by a frequency divider 25 and the result is used for the local oscillating frequency for the 2nd and succeeding stages of the frequency conversion stages (2nd mixer 5).
Patent JP-S6329440-A (JP)
Title: Fluorescent lamp
Inventor: IKEDA TOSHIYUKI
IPC: H01J61/33
Filed: 1986-07-23
Abstract: PURPOSE:To improve a luminous flux to prevent a U-shaped curved part from blackening, by making a U-shaped curved part of a glass bulb become thicker than its other parts and besides by forming amalgam on the end part of the bulb. CONSTITUTION:Amalgam is formed on the end part of a glass bulb 2, for exam ple, inside one part of exhaust tubes 9. Then, a U-shaped curved part 3 of the glass bulb 2 is formed thicker than the other parts of the glass bulb 2, that is, its straight tubular parts 6. Thus, the amount of heat radiated from the curved part 3 of the bulb 2 becomes small, and therefore the temperature at the U-shaped curved part 3 becomes high, together with excessive mercury being absorbed into the amalgam. Furthermore, because mercury evaporation is maintained properly, the mercury is not condensed on the U-shaped curved part 3, and the whole luminous flux does not decrease in this fluorescent lamp, and the curved part 3 of the bulb 2 can be prevented from being broken.
Patent JP-H0738433-A (JP)
Title: Frequency controlled oscillator
Inventor: TOHIRA KAZUSHIRO
IPC: H03L7/097
Filed: 1993-07-13
Abstract: PURPOSE:To provide a frequency controlled oscillator with less noise, keeping its frequency constant and used for a millimeter wave local oscillator with respect to the frequency controlled oscillator. CONSTITUTION:A branching means 2 distributes an output of a VCO 1 to a low pass filter 3 and a high pass filter 4 in which a loss is equal in an output frequency of the VCO 1 and outputs of the low pass filter 3 and the high pass filter 4 are given respectively to detectors 5, 6. Then the detected outputs are inputted to a differential voltage output means 7 obtaining the difference of the received two voltages and its output is fed back to the input of VCO 1.
Patent JP-S6333882-A (JP)
Title: Drive circuit for laser diode
Inventor: CHIYAARUZU EFU KARUPETSUPAA
IPC: H04B10/43
Filed: 1987-07-09
Abstract: PURPOSE:To drive a laser diode stably up to high frequency without approximately depending upon a series inductance affixed to a package for the laser diode by driving the laser diode through a current source amplifer by a modulation signal. CONSTITUTION:An input modulation signal is applied through an input RC impedance matching circuit 12, and AC-couped with a laser diode drive circuit 14 on a circuit substrate 16. The laser drive circuit 14 has an input-step base grounding buffer amplifier 22, and an emitter-input modulation signal to the buffer amplifier 22 is applied. A collector for the buffer amplifier 22 functions as an input to a base for an emitter grounding type output step amplifier 24 biassed so as to be operated at a current source mode. A collector for the emitter grounding amplifier 24 is grounded to a laser diode D, and feeds the laser diode D with driving currents. A current source to the laser diode D is acquired from the emitter grounding amplifier 24 operating as the current source, thus driving the effect of inductance L by the driving currents of a constant amplitude AC component regardless of frequency, then minimizing the effect of the inductance L.
Patent JP-S6328678-A (JP)
Title: Printer page feed control system
Inventor: HIROSE TOSHIKO
IPC: B41J13/00
Filed: 1986-07-22
Abstract: PURPOSE:To enable an automatic optimization of page feed position, by a method wherein a printer device itself is provided with a special page feed code, which is changed to a line feed code or a page feed code under constant conditions. CONSTITUTION:When a receiving data from a receive part 1, a receive controller 3 writes the data on a position pointed by a tail pointer. When a character number counter 31 reaches the character number for one line, the controller 3 adds 1 to a line number counter 4. When the counter 4 reaches the line number for one page or when the controller 3 receives a page feed code, a controller 7 retrieves a special page feed code or a page feed code in a buffer 8; if both the special page feed code and the page feed code are detected, a special page feed code position is corrected to a page feed code position; and if the neither is detected, the tail pointer is written in a page feed pointer and sent to an output part 2. In this manner, a position for conducting page feed in printout can be automatically optimized.
Patent JP-H0459349-A (JP)
Title: Electromagnetic shielding plate
Inventor: NOMOTO KAZUHIKO
IPC: B32B7/02
Filed: 1990-06-29
Abstract: PURPOSE:To obtain an electromagnetic shielding plate capable of being colored end excellent in wear resistance by a method wherein a coating layer formed on the surface of a metal plate consists of a lower layer containing electromagnetic materials and an upper layer containing hard and colored ceramic particles in resin. CONSTITUTION:A lightweight metal plate such as aluminum plate 1 has a coating layer 2 formed on its surface. The coating layer 2 consists of a lower layer 5 formed by the composite films of magnetic materials 4 bound with the resin 3 which has been melted and cured and of an upper layer 8 formed by the composite films of hard and colored ceramic particles 7 bound with the resin 6 which has been melted and cured. As the magnetic materials 4 bound with the resin 3 in the lower layer 5, powdered iron or nickel such as powdered ferrite, alunico and cobalt is used. As the ceramic 7 bound with the resin 6 in the upper layer 8, the ceramics in particulate, powdery, finely divided, fiber- like and other similar state are used, thereby making variable and free coloring possible.
Patent JP-H0778582-A (JP)
Title: Ion source device
Inventor: MIYAKE KOJI
IPC: H01J37/08
Filed: 1993-06-17
Abstract: PURPOSE:To provide an ion source device which can convey a high density plasma even with a small electron releasing aperture by furnishing a magnetic field forming means which generates a magnetic field in the axial direction for the electron releasing aperture. CONSTITUTION:An ion source device is formed from a plasma cathode 20 as electron source to generate electron by means of plasma production with high frequency discharging, a main plasma chamber 2 in which electrons are supplied from an electron releasing aperture 30 formed in a lid plate 27 for the cathode 20 and confines the main plasma 26 produced by DC discharging, and extaction device 4 which extracts ion beam from the main plasma 26. Between a lid plate 13 and insulation 15, a magnetic field forming means 31 is provided which is composed of a lid plate 29 made of ferromagnetic material and a ring-shaped magnetic field generating means 28 consisting of electromagnetic coil arranged in the peripheral part on the lid plate 27, and a magnetic field in the axial direction of approx, several hundreds thouthands of G's is produced on the axis of an electron aperture 30 by the magnetic circuit configured with the lid plates 27, 29 and magnetic field generating means 28.