baber/WOPTO huggingface dataset:
Patent JP-H01302514-A (JP)
Title: Manufacture for thin film magnetic head
Inventor: NAKAMURA FUMIAKI
IPC: G11B5/31
Filed: 1988-05-30
Abstract: PURPOSE:To shorten a time for glass mold by causing the channel forming surfaces of two substrates, for which a track channel, a track separating channel and a glass setting channel are formed, to face each other, interposing a glass in the facing space and executing the heating and fusion of the glass. CONSTITUTION:A track channel 2 and a track separating channel 3, which is orthogonal to this channel 2, are formed on an upper substrate 1 to be composed of a ferrite block and a fusing glass material 4 is arranged on these channels. Next, the upper core substrate 1, for which the same channels are formed, is arranged so that the channel forming surfaces of the track channel 2 and track separating channel 3 can be brought into contact and the upper and lower channels can be faced each other. The glass mold is executed by the heating, fusing and pressing due to the dead weight of the upper core substrate 1. After that, the upper and lower substrates are cut and separated in the position of a broken line 5 near the intermediate part of a glass layer. Next, grinding is executed so that a desired height dimension (h) can be obtained and a core block 6 is cut and separated.
Patent JP-2000324785-A (JP)
Title: Brushless motor
Inventor: TAKADA MASAYUKI
IPC: H02K15/03
Filed: 1999-05-13
Abstract: PROBLEM TO BE SOLVED: To provide a brushless motor, which does not deteriorate characteristics such as increase in vibration, when a printed board mounting electronic components is built in a motor, and enables miniaturization, weight reduction, low power operation and quality improvement. SOLUTION: In the constitution of a magnet rotor molded in a unified body, poles of a main magnetic pole part 6 are oriented by the same ferrite resin magnets 5 of the main magnetic pole part 6 and a magnetic pole part 7 for a sensor, which has a diameter smaller than the inner diameter of the main magnetic pole part 6, and the orientation of an easy magnetization axis of ferrite fine particles as magnetic powder is formed isotropically in the magnetic pole part 7 for a sensor.  The magnetic center of a stator core 4 coincides with that of the main magnetic pole part 6, magnetic saturation is restrained, interlinkage magnetic flux becomes sinusoidal wave, and the optimum current flowing phase to an induced voltage phase is obtained, so that increase in torque ripple or the like is restrained and increase in vibrations in the axial direction and in the rotating direction are restrained. The number of components and working man-hours are reduced, so that a brushless motor capable of cost reduction, low cost and vibration and miniaturization can be obtained.
Patent JP-H08300091-A (JP)
Title: Rough forging die for rimmed disk
Inventor: FUJIMURA TAKASHI
IPC: B21K1/32
Filed: 1995-05-01
Abstract: PURPOSE: To distribute the volume to a rimmed part in the rough forging as much as possible, and to flow the stock along a rough forging die. CONSTITUTION: In a rough forging process of a stock in forging a rimmed disk, the sectional shape including the center axis of a rough forging die is of the shape where the thickness in the axial direction is increased as the diameter is increased, and the relationship of the angle α of increase (the taper angle) in the thickness in the axial direction to the increase in the diameter is expressed by the inequality of tan(α+6)<=4t/D, where D is the diameter where the axial thickness is started to increase, and (t) is the axial thickness at the position. The rough forged shape after the rough forging can be easily estimated, and the uneven temperature distribution is prevented from occurring to prevent the generation of recessed flaws in the finish forging.
Patent JP-S61289673-A (JP)
Title: Compound semiconductor device
Inventor: MATSUI YUICHI
IPC: H01L29/812
Filed: 1985-06-18
Abstract: PURPOSE:To reduce a leakage current by a method wherein a growth layer of a multilayer structure is so formed as to have the average lattice constant of the multilayer structure smaller than or equal to the lattice constant of a semiconductor and this growth layer is utilized as a buffer layer of a compound semiconductor device. CONSTITUTION:A buffer layer 21 of a multilayer structure consisting of alternate lamination structure of InAs thin films and GaAs thin films is formed on a non-doped InAs substrate 20 by an MBE growth method. As a lattice constant which is averaged through the whole buffer layer 21 is smaller than a lattice constant of InAs, the electric resistance of the buffer layer is significantly increased. A channel layer 22 composed of an InGaAs mixed crystal layer is formed on the high resistance buffer layer 21 and a source electrode and a drain electrode are formed with AuGeNi alloy on the top surface of the grown InGaAs mixed crystal channel layer 22 so as to be brought into ohmic contact with the layer 22. An oxide film 24 is formed on the center part of the top surface and a gate electrode 25 is formed on it with Al metal. With this constitution, a leakage current into the buffer layer can be reduced.
Patent JP-S62289818-A (JP)
Title: Driving method for optical modulation element
Inventor: YOSHIOKA SEISHIRO
IPC: G02F1/133
Filed: 1986-06-10
Abstract: PURPOSE:To execute a gradation display having a good picture quality by providing a potential gradient in at lest one conductive film surface for constituting a picture element, and inputting a signal which has been modulated by a voltage, width of a pulse of the number of pulses. CONSTITUTION:A display conductive film 2, and parallel electric transmission electrodes of an equal internal are superposed on a substrate 1, an opposed electrode film 4 is placed so as to be orthogonal to the electrode 3 on an opposed substrate, a picture element A is formed in a crossing part, and a ferroelectric liquid crystal is inserted and held between the film 2 and 4. When electrodes 3a, 3c are set to a reference potential VE=0, and a signal voltage Va is applied to an electrode 3b, a potential gradient of Va is generated in length directions L1, L2 in the film 2 surface. When an inverted threshold value Vth=Va of a liquid crystal is set and -Vb is applied to the opposed electrode 4, Va+Vb is applied to a liquid crystal of length directions m1, m2 in the film 2 surface, and converted to dark. Accordingly, the gradient can be controlled by modulating -Vb in accordance with a gradation at every picture element, or modulating width of a pulse or the number of pulses in accordance with gradation information, and the gradation display can be executed with a good picture quality.
Patent JP-H01303401-A (JP)
Title: Production of multilayered film coating of plastic optical parts
Inventor: NAKADA YUUKI
IPC: G02B1/115
Filed: 1988-06-01
Abstract: PURPOSE:To improve the heat resistant test and wear resistance of optical films by forming a silicon-contg. material by vacuum deposition as a cured film on the surface of a plastic base material, then forming alternate layers of a cerium-contg. material and Si-contg. material. CONSTITUTION:The cured film of a 1st material, i.e., silicon alone or a material consisting of a silicon-contg. oxide is formed by vacuum deposition as a base coat to 300-5,000Angstrom  on the surface of the plastic base material. Total >=3 layers of the alternate layers consisting of a material consisting of a dielectric material contg. >=60wt.% cerium-contg. oxide or cerium-contg. fluoride and the 1st material are thereafter laminated to 300-5,000Angstrom  film thickness respectively on the above-mentioned film. The optical films satisfy the various required optical characteristics in this way without degrading the surface performance of the base material and the exfoliation and wear resistance of the films particularly in the heat test are improved.
Patent JP-S6024266-A (JP)
Title: Method and device for automatic soldering
Inventor: YOKOTA HACHIJI
IPC: H05K3/34
Filed: 1983-07-21
Abstract: PURPOSE:To enable semiautomatic soldering in accordance with the accuracy by one device by changing the conveying interval of printed circuit boards and the time for dipping the same into a solder tank and pressing the electronic parts on the boards according to the required accuracy. CONSTITUTION:The change lever 6a of a panel control 13 is shifted downward to travel a chain 10 in the direction A if high accuracy of soldering is not required. Printed circuit boards 15 on which electronic parts 16 are mounted are successively placed on all the carriers 5 of the chain 10 and are fed to a flux tank 18, a preheating tank 19 and a solder tank 20, by which the boards are soldered. The soldered boards are taken out in the lowermost position of guide rails 11. If the high accuracy of soldering is required, the lever 6a is shifted upward and every other carriers 5 are removed. The boards 15 on which the electronic parts 16 are mounted are placed on such carriers to extend the dipping time in the tank 20 and the parts 16 are pressed by stopping the boards during the intervening time.
Patent JP-S5923375-A (JP)
Inventor: SHIMADA TOMOYUKI
IPC: G09G5/26
Filed: 1982-07-30
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-S6025305-A (JP)
Title: Coaxial multi-stage type antenna
Inventor: SATOU TAKUROU
IPC: H01Q21/10
Filed: 1983-07-21
Abstract: PURPOSE:To attain a broad band characteristic for the antenna by arranging coaxial elements having different length to a position of a proper stage. CONSTITUTION:Elements at proper stages of coaxial elements A-Q, e.g., I, L and O are formed with different length in the coaxial multi-stage antenna where a center conductor and an outer conductor of the plural coaxial elements A-Q are connected while being replaced alternately. Through the constitution above, the broad band characteristic is attained for the antenna.
Patent JP-2000327435-A (JP)
Title: Monolithic refractory and waste melting furnace using the same
Inventor: KIDA OTOJIRO
IPC: C04B28/06
Filed: 1999-05-13
Abstract: PROBLEM TO BE SOLVED: To form a refractory excellent in corrosion resistance and thermal shock resistance from fire-resistant particles based on molten zirconia particles containing glassy phase by a specific ratio, dolomite particles and spinel particles and a binder containing alumina cement by a specific ratio. SOLUTION: This monolithic refractory comprises 93-99 wt.% fire-resistant particles based on 5-30 wt.% molten zirconia particles containing 3-25 wt.% glassy phase, 35-85 wt.% dolomite particles and 10-30 wt.% spinel particles each having less than 1.19 mm particle size and 1-7 wt.% binder containing 50-100 wt.% alumina cement. It is preferable that the molten zirconia particles contain monoclinic ZrO2 crystalline phase such as desilicated zirconia and the binder contains aluminum lactate as well as alumina cement. This monolithic refractory is used for construction work after adding a digestion-preventing agent consisting of a salt of aluminum hydroxide and lactic acid, etc., a dispersant such as sodium tripolyphosphate or a curing control agent and water.
Patent JP-S5358879-A (JP)
Title: Drum shear
Inventor: OOKUBO HIROYUKI
IPC: B26D1/40
Filed: 1976-11-06
Abstract: PURPOSE: To prevent gap otherwise generated by a reaction force applied at the moment of shearing strips which causes the blades to deviate from each other after any adjustment of gap is made according to the thickness. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-S61291729-A (JP)
Title: 2-step type supercharging device
Inventor: NAGASE HIDENOBU
IPC: F02B33/36
Filed: 1985-06-19
Abstract: PURPOSE:To smoothly shift the operation mode of a supercharger and to improve the efficiency of an engine, by a method wherein control is effected so that the supercharge pressure of a bypass valve is adjusted to a desired value. CONSTITUTION:During low rotation speed running of an engine, a turbocharger 3 and a supercharger 4 are rendered operative. When a rotation speed is increased and exceeds the intersept rotation speed of the turbocharger 3, an electromagnetic valve 4 is released, and the action of the supercharger is rendered ineffective. Control of an electromagnetic valve 28 is effected as follows. When an electomagnetic clutch 15 is engaged, a desired supercharge pressure is determined based on a throttle opening, and the rotation speed of an engine. A desired supercharge pressure and an actual supercharge pressure are so set as to be within the width of an insensitive band. Thereafter, a temperature correction value and a pressure correction value are added to determine the final duty ratio of the electromagnetic valve 28.
Patent JP-H11319018-A (JP)
Title: Sauna
Inventor: SHIMIZU TETSUHIKO
IPC: A61H33/06
Filed: 1998-05-15
Abstract: PROBLEM TO BE SOLVED: To provide a sauna which is lighter and easier to assemble. SOLUTION: An electric heater 14 generating infrared rays is mounted on the internal surface of a sauna chamber 12 and the inside of the sauna chamber 12 is heated by the infrared rays and electric heat generated by the electric heater 14. In this case, the wall surface of the sauna chamber 12 is formed by holding a plate material 20 formed using a polyurethane foam 40 between frames 22 (22a and 22b) made of a synthetic resin.
Patent JP-S61289765-A (JP)
Title: Picture processing system
Inventor: MISHIMA KENICHI
IPC: H04N1/411
Filed: 1985-06-18
Abstract: PURPOSE:To judge accurately an error when picture data is subjected to compression or expanding processing by comparing picture data subjected to compression processing respectively by plural compression processing means to diagnose the compression. CONSTITUTION:Picture data is read from a picture information input device 7 and stored in a picture memory 4. Further, a MPU 1 reads the same picture data from a picture memory 4, applies linear compression on software basis and stores it in the 2nd area of a diagnostic memory 11. After the two ways of linear compression are finished, the respective compression data stored in the 1st and 2nd areas in the memory 11 are compared. As the result of comparison, when a dissident part exists, it is judged as a compression error of a linear compression/expansion section 9 and the dissident data is stored in the memory 2. On the other hand, when all are coincident, it is judged that the linear compression/expansion section 9 is normal and a 2-dimensional compression/ expansion section 10 is diagnosed.
Patent JP-H06351266-A (JP)
Title: Air-conditioner
Inventor: KITAYAMA TORU
IPC: H02M7/797
Filed: 1993-06-03
Abstract: PURPOSE:To allow optimal control of charge/discharge voltage by fully utilizing the power generated from solar cells while ensuring the reliability of a battery. CONSTITUTION:Power generated by solar cells 28 is fed to an inverter 15 during daytime and a maximum output power control circuit 20 controls a bidirectional converter 4 to generate maximum power from the solar cells 28. Excess power is returned back to a single phase commercial power supply 1 through the bidirectional converter 4. When the output power from the solar cells drops during daytime due to rainy or cloudy weather, power is fed from a battery 32 to the inverter 15 and deficiency of power is supplemented by the commercial power supply 1 through the bidirectional converter 4. In nighttime, the bidirectional converter 4 is controlled with reference to the voltage of a DC power supply 21 and power is fed to the inverter 15 from the commercial power supply 1. Furthermore, a charging current control circuit 22 controls the bidirectional converter 4 to charge the battery with an optimal voltage.
Patent JP-H05320595-A (JP)
Title: Method for priming release paper
Inventor: SENDAI HIDEKI
IPC: C09J7/02
Filed: 1992-05-26
Abstract: PURPOSE:To obtain the release paper facilitating the separation of a primer and permitting the easy regeneration of cellulose by coating the emulsion or aqueous solution of a (meth)acrylate ester polymer copolymerized with an unsaturated carboxylic acid on paper and subsequently drying the coated paper. CONSTITUTION:The emulsion or solution of a (meth)acrylate ester (e.g. ethyl acrylate) polymer copolymerized with an unsaturated carboxylic acid (e.g. acrylic acid) in an amount of 1-50mol.% is coated on high quality paper having a weight of 100g/m<2> with a positively rotating roll coater so as to give a dry weight of 6g/m<2>, and subsequently passed through a hot air oven heated to an average temperature of 150 deg.C for a passing time of 17 sec to provide the dried release paper readily giving a cellulose slurry by beating the waste of the release paper and containing the primer agent capable of being readily separated by producing paper, neutralizing or acidifying the waste water with an acid and subsequently filtering the coagulated primer agent.
Patent JP-H08331455-A (JP)
Title: Key signal generating device, key signal generating method and image synthesizing device
Inventor: YOKOYAMA MIGAKU
IPC: H04N5/275
Filed: 1995-05-31
Abstract: PURPOSE: To easily change a key signal (software key). CONSTITUTION: The curved surface of a key signal (X is approximated by plural third-order Bezier curved surfaces Q(s, t) with parameters as (s) and (t). The respective Bezier curved surfaces are uniquely decided by position vectors Pi0, Pi1, P(i+1)0 and P(i+1)1 expressing the positions of respective four end points Q(0,0), Q(1, 0), Q(0, 1) and Q(1,1) and velocity vectors Vi0, Vi1, V(i+1)0 and V(i+1)1 at the respective end points.
Patent JP-S61292280-A (JP)
Title: Magnetic head forwarding device
Inventor: OKUDA KIYOYASU
IPC: H02P8/14
Filed: 1985-06-19
Abstract: PURPOSE:To reduce power consumption and heat generation from a stepping motor by exciting only when a magnetic head is moved. CONSTITUTION:With inputting in order a step pulse signal STEP from a host computer 21 to a magnetic disk driving circuit 20, the phase shifts of exciting phase signals A, -A, B and -B are performed in order according to a direction signal DIRECTION. With rotating a stepping motor 11 by every pulse angle through a stepping motor driving circuit 30, a magnetic head 6 is moved. After the positioning of the magnetic head 6 and the drop of a driving selecting signal DRIVE SELECT, the gates of NAND gates 23-26 are closed and exciting currents Iphi1 and Iphi2 are interrupted.
Patent JP-S61293100-A (JP)
Title: High molecular piezoelectric ultrasonic probe
Inventor: KANEKO NAGAO
IPC: G01H11/08
Filed: 1985-06-21
Abstract: PURPOSE:To prevent the impedance and frequency of the titled probe from varying by making the length of an electrode for driving in the longitudinal direction longer than those of a common electrode and a common electrode cum lambda/4 acoustic supporter in the direction parallel with the longitudinal direction of driving. CONSTITUTION:After disposing high molecular piezoelectric bodies 1 and 1' so that the directions of their polarization axed oppose each other, a high molecular film 4 provided with electrodes for driving 3 are provided between the said bodies 1 and 1'. Then a common electrode 2 and a common electrode cum lambda/4 acoustic supporter 2' provided on a polyimid that forms the film 4, are disposed on both sides, and they are adjusted so that they coincide with each other in positioning. And thereafter, a supporting material is applied to the rear surface of the supporter 2'. Later, parts of the end sides of the electrode 2 and the supporter 2' are fixed to the supporting material with an instantaneous-fixing adhesive, and they are aligned at their end sides in the direction of lamination. The said components are fixed with an epoxy resin adhesive 6, and made acoustically integral. In this case, the electrodes 3 are made longer than the width of the electrode 2 and the supporter 2', so that the latter two face the electrode 3 throughout their entire areas even if a slight disalignment occurs during the positioning. In result, variations of electrical impedance and frequency are removed.
Patent JP-S63298815-A (JP)
Title: Magnetic recording medium
Inventor: WATANABE HARUO
IPC: C09D7/12
Filed: 1987-05-29
Abstract: PURPOSE:To obtain excellent magnetic characteristics such as saturation magnetic flux density and squareness ratio, etc., by compounding polishing powder having the surface tension smaller than the surface tension of a magnetic coating compd. which is subjected to a surface treatment by a dispersant contg. a fluorinated org. material into a magnetic coated film. CONSTITUTION:The polishing powder 1 having the surface tension smaller than the surface tension of the magnetic coating compd. which is subjected to the surface treatment by the dispersant contg. the fluorinated org. material is compounded into the magnetic coated film 2. The polishing powder 1 subjected to the surface treatment by the dispersant contg. the fluorinated org. matter exists in the direction where the powder floats on the surface of the magnetic coated film 2 at the time of coating the magnetic coating compd. The density of the polishing powder 1 near the surface of the coated film 2 increases after the coated film cures. The surfaces of the polishing powder 1 itself are eventually exposed on the surface of the coated film 2 without being covered by the coated film 2. The magnetic characteristics, more particularly, the saturation magnetic flux density and squareness ratio are thereby improved.
Patent JP-H02311879-A (JP)
Title: Fixing device
Inventor: KAI SO
IPC: C22C19/03
Filed: 1989-05-26
Abstract: PURPOSE:To prevent the surface of a roller from being damaged by toner which is scraped by a blade and solidified by forming a fixing blade of shape memory alloy and allowing the fixing blade to abut on the circumferential surface of a fixing roller selectively in accordance with a set temperature. CONSTITUTION:The fixing blade 8 is formed of the shape memory alloy which transforms to position the fixing blade 8 at a 1st position where the blade 8 is allowed in abut on the circumferential surface of the fixing roller 3 when the temperature of the fixing roller 3 is equal to or above the set temperature Tc between a fixing control temperature Ta and a fixing preliminary rotation starting temperature Tb(<Ta), and to position the fixing blade 8 at a 2nd position where the blade 8 is separated from the circumferential surface of the fixing roller when the temperature of the fixing roller 3 is equal to or below the set temperature Tc. Thus, it is unnecessary to provide a mechanism for controlling the positions of an oil applying member 7 and the fixing blade 8 and driving them and the fixing roller is prevented from being damaged by such members.
Patent JP-S5837096-A (JP)
Inventor: MUKOUYAMA KOUJI
IPC: C11D3/37
Filed: 1981-08-28
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-H05302674-A (JP)
Title: Combination of piston ring and cylinder
Inventor: SHINADA MANABU
IPC: F02F5/00
Filed: 1992-04-27
Abstract: PURPOSE:To provide a combination of a piston ring of an internal combustion engine which has a metal plating layer having excellent abrasion resistance and seizure resistance and hardly causing an attacking property of a fellow member and a cylinder which has a metal plating layer having excellent abrasion resistance. CONSTITUTION:A piston ring 4 where a nitride layer 6 and a complex metal plating layer 7, of which silicon nitride particles having an average particle diameter of 0.5-10mum are dispersed in a range of 5-30% in volume % in a base material of cobalt-nickel-phosphorus alloy composed of phosphorus of 0.2-10weight%, nickel of 10-43weight% and cobalt of 55-88weight%, are formed in order on at least the outer peripheral sliding surface of a piston ring base material 5 composed of high chrome steel having the chrome content of 12.0-23.0weight% and a cylinder 1 having a hard chrome metal plating layer 3 on the sliding surface, are combined with each other.