baber/WOPTO huggingface dataset:
Patent JP-H06282827-A (JP)
Title: Rotary head drum
Inventor: KOO YON GIRU
IPC: G11B5/53
Filed: 1993-06-08
Abstract: PURPOSE: To facilitate drum assembly and to prevent vibrations and contact noises at the time of high-speed rotation by integrating a back yoke comprising a rotary head drum with a ring colar. CONSTITUTION: A flange 116 is pushed in and fixed at the upper part of a rotary shaft 115 comprising the head drum, and a transformer rotator 119 is fixed on this lower surface. On the other hand, a transformer fixer 124 corresponding to the rotator 119 of an upper rotary drum 117 is fixed on the upper surface of a lower fixed drum 120, and a motor housing 125 is fixed on the lower surface of the drum 120. In this case, the housing 125 is formed from a plastic material so as to absorb the vibrations to be generated at the time of operating the rotary head drum, and a back yoke 128 integrally forming a conical washer 126 and a ring colar 127 is inserted into the rotary shaft 115 protruded downward. Thus, the washer 126 is elastically deformed and a lower bearing 123 of the drum 120 is elastically held. Namely, the colar 127 is integrally fixed to the yoke 128.
Patent JP-H04360541-A (JP)
Title: Manufacture of semiconductor device
Inventor: YOSAKO TOSHIHIRO
IPC: H01L21/336
Filed: 1991-06-07
Abstract: PURPOSE:To eliminate the part where the damage caused by ion implantation is not recovered, and reduce crystal defect, by a method wherein, after ion implantation for forming source.drain regions, the spacer end is a little retreated by etching and isolated from the end of an ion implantation region of high concentration. CONSTITUTION:In order to prevent the end of a spacer 8 from overlapping with an ion implantation region 10 of high concentration, a silicon oxide film is etched by using mixed liquid of hydrofluoric acid and ammonium fluoride. An insulating film 11 is formed, and heat treatment for recovering the damage at the time of ion implantation is performed. After contact holes 12 and the like for electric contact with a diffusion layer or a gate electrode 5 are formed, a wiring layer 13 is patterned and a cover film 14 is formed. Thereby the part where the damage caused by ion implantation is not recovered is excluded, crystal defect is reduced, and leak current failure to a substrate 1 can be reduced.
Patent JP-H11330819-A (JP)
Title: Manufacture of ceramic electronic component
Inventor: KAMEYAMA ICHIRO
IPC: H01P7/04
Filed: 1998-05-19
Abstract: PROBLEM TO BE SOLVED: To provide a ceramic electronic component of high Q value. SOLUTION: The materials of a dielectric ceramic 2 of a BaO-TiO2 -Nd2 O3 -Bi2 O3 system composition (εr=92, Qf=5,000 GHz) are mixed, and temporarily burned and crushed. Next, a binder is added and mixed with the temporarily burnt powder, and granulated through a mesh, and coaxially pressurized, and sintered in an atmosphere at 140 deg.C in an electric furnace and a cylindrical dielectric ceramic 2 is obtained. Then, Ag paste is applied to the outer surface and inner surface of the dielectric ceramic 2 so that electrodes 1 and 4 can be continuously connected. In this case, however, Ag paste is not applied to the surface of one open edge 3. After the Ag paste has been applied, this dielectric ceramic 2 is burnt in a depressurizing atmosphere at 70 kPa or less and 500 deg.C or higher, and the electrodes 1 and 4 can be formed.
Patent JP-H09321866-A (JP)
Title: Remote maintenance system
Inventor: SHIRAISHI OSAMU
IPC: H04Q11/04
Filed: 1996-05-30
Abstract: PROBLEM TO BE SOLVED: To provide a remote maintenance system in which a separate transmission line for transmission of maintenance information is not required to be provided. SOLUTION: A maintenance signal monitor circuit 5a of a remote equipment 2 generates a maintenance signal in response to a state of a power supply 6 and a cooling fan 7, and a multiplexer demultiplexer 5b multiplexes the maintenance signal onto a main signal and gives the result to a master set 1. A multiplexer demultiplexer 11 of the master set 1 demultiplexes the maintenance signal from the received main signal and a control section 12 generates a state display signal based on the demultiplexed maintenance signal.  The multiplexer demultiplexer 11 multiplexes the state display signal on the main signal to be sent to the remote equipment 2 and the multiplexer demultiplexer 5b demultiplexes the state display signal from the received main signal and the maintenance signal monitor circuit 5a controls a state display section 9 to allow the display section 9 to display a signal in response to the state display signal.
Patent JP-H06322145-A (JP)
Title: Vibration-damping rubber composition
Inventor: MATSUO TORU
IPC: C08J5/06
Filed: 1993-05-15
Abstract: PURPOSE:To obtain a vibration-damping rubber composition, capable of reducing the indoor noise level and useful as a vibration-damping rubber for automobiles. CONSTITUTION:The vibration-damping rubber composition is obtained by blending 100 pts.wt. raw material rubber composed of natural rubber or a synthetic rubber or a mixture thereof with 0.5-20 pts.wt. cellulosic fiber subjected to the impregnation treatment with resorcin or a derivative thereof and 0.5-2.0 pts.wt. methylene donor such as hexamethoxymethylmelamine or hexamethylenetetramine.
Patent JP-S62291972-A (JP)
Title: Manufacture of semiconductor device
Inventor: TANPO TOSHIHARU
IPC: H01L21/302
Filed: 1986-06-12
Abstract: PURPOSE:To prevent disconnection of a gate electrode and to improve the yield of manufacture, by employing the air-bridge configuration for the gate electrode. CONSTITUTION:On a semi-insulating GaAs substrate 1, there are grown a high- resistance layer 2, an active layer 3 and an ohmic layer 4. A PCVD-SiN film 5 is deposited thereon and a resist pattern 6 is formed. The film present on the bottom of a gate aperture 7 in the pattern 6 is etched away and the layer 4 is removed by recess etching to form a gate etching groove 8. Then a gate electrode 9 is formed by means of the lift-off process. A region where an FET is to be formed is covered with resist 10. The layer 3 is etched with the resist 10 used as a mask so that an island structure 11 is obtained. The substrate is further subjected to photo etching for providing a source electrode 12 and a drain electrode 13. Thus, an FET is obtained. Regions under the gate electrode except the FET constructed section are formed as hollow holes of air bridges 15.
Patent JP-S5760407-A (JP)
Title: Numerical control system
Inventor: NOZAWA RIYOUICHIROU
IPC: G05B19/19
Filed: 1980-09-30
Abstract: PURPOSE: To shorten a waiting time for preparations, and to elevate the efficiency, by constituting a system so that other control shaft than a shaft controlled by an automatic operation can be moved by a manual mode, in the course of an automatic operation mode by a machine tool which is provided with a multitable.  
     CONSTITUTION: Auto/manual is set to every shaft by operating an auto/manual changeover switch provided on each shaft on a manual operation panel 106. When a move command from an NC command tape 101 is provided to a pulse distributing circuit 103 through a controlling circuit 102, the circuit 103 executes maximum simultaneous 5 shafts, and outputs distributing pulses XPWB1P to a switching circuit 109. Since each contact of switches S1WS5 of the circuit 109 is connected to the auto terminal side, the move command drives SMXMWBM1 through a servo- motor SM controlling circuit. When a job button, etc. of the operation panel 106 are operated, distributing pulses A2P, B2P are generated from a distributing panel 108, and SmAM2, BM2 are driven through a contact of the manual control side of switches S6, S7, so that the preparation work can be executed manually by keeping pace with working by the automatic operation. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-S5567514-A (JP)
Title: High purity alpha-type silicon nitride and production thereof
Inventor: KASAI KIYOSHI
IPC: C01B33/04
Filed: 1978-11-08
Abstract: PURPOSE: To obtain high purity, high strength α-type silicon nitride with an α- phase crystal content of 95% or more by heating a nitrogencontg. silane cpd. at 1300W1600°C in a furnace made of non-oxide material such as silicon nitride or silicon carbide.  
     CONSTITUTION: Gaseous silicon tetrachloride and ammonia are reacted in an inert atmosphere at such a low temp. as -30W70°C. The resulting nitrogen-contg. silane cpd. such as tetramidomonosilane or diimidomonosilane is heated to 1300W 1600°C in a furnace made of non-oxide material such as silicon nitride, silicon carbide or carbon, and it is thermally decomposed while feeding an inert gas such as Ar or N 2  to obtain novel α-type silicon nitride having an oxygen content of 1% or less, a nitrogen content of 38% or more and an α-phase crystal content of 95% or more, contg. very little metallic impurities, and suitable for use as a material for a gas turbine, etc. requiring high strength and high thermal and mechanical impact resistance. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-S5927906-A (JP)
Title: Film- or fiber-form conductive polymer and its production
Inventor: MATSUMURA TERUICHIROU
IPC: D01F9/12
Filed: 1982-08-07
Abstract: PURPOSE:To obtain a conductive polymer capable of being produced even at low temperatures, by reacting a cyano group-containing acetylene compound at a specified temperature. CONSTITUTION:A cyano group-containing acetylene compound is reacted at above 150 deg.C, preferably at 350-2,400 deg.C. The materials used include 6 C or lower hydrocarbons containing both a cyano group and an acetylenic group, such as cyanoacetylene and dicyanoacetylene, and particularly cyanoacetylene and dicyanoacetylene are suitable. These hydrocarbons may be used alone or as a mixture of at least two members. It is also possible to use the above hydrocarbon together with an inert gas such as nitrogen, and a hydrocarbon such as an aliphatic hydrocarbon. When this conductive polymer is used as a surface coating layer for other materials, heat-resistant high-molecular compounds such as polyimide can be used as bases for use at low temperatures. Thus it becomes possible to produce flexible conductive films.
Patent JP-H02133605-A (JP)
Title: Polyvinyl alcohol-based fiber, tire cord therefrom and production thereof
Inventor: TANIGUCHI ATSUSHI
IPC: D01F6/34
Filed: 1989-05-30
Abstract: PURPOSE:To obtain PVA-based fiber with both high mechanical strength and hot water resistance useful for tire cords by spinning a spinning dope comprising a mixture of both high-polymerization and saponification degree PVA and an acrylic acid-based polymeric compound followed by multi-stage drawing at high draw ratio. CONSTITUTION:A spinning dope comprising a mixture of (A) PVA >=1500 (pref. >=3500) in polymerization degree and >=99 mole % in saponification degree and (B) an acrylic acid-based polymeric compound [e.g., polymer or oligomer with e.g., (meth)acrylic acid as monomer] is spun, and the resultant spun filament yarn is put to multistage drawing so as to result in the total draw ratio by a factor of >=12, thus obtaining the objective fiber >=10g/d (pref. >=14g/d) in tensile tenacity and >=50 hot water resistance index. It is preferably that mixing ratio of the component B to the component A be 0.1-20wt.%.
Patent JP-H09318729-A (JP)
Title: Coordinate conversion device for radar device
Inventor: NAKAMURA HIROSHI
IPC: G01S7/295
Filed: 1996-05-30
Abstract: PROBLEM TO BE SOLVED: To prevent omission from occurring in the distant part from the center in a radar screen even raising the number of revolutions of antenna by providing the device with a data holding and selecting circuit and indicating one previous data on the screen when unaccess cells are generated in an indication memory. SOLUTION: A data holding and selecting circuit consists of a latch circuit 13 to hold one previous data SDX' and send out the one previous data SDX' following the specific indication memory read out clock signal DR-CLK, and a selector 12 to select and output one of the present data SDX and one previous data SDX' of indication signal depending on the existence of unaccess signals. The indication signal output from the selector 12 is converted to analog signal in a D/A converter circuit 9 and send to a monitor as an indication output signal SOUT. When unaccess cells are generated in the indication memory 4, one previous data is to be indicated on the radar screen, and therefore omission of distant part from the center on the radar screen is prevented even raising the number of revolutions of antenna and images without incongruity is obtained.
Patent JP-H11324729-A (JP)
Title: Fuel control device of diesel engine
Inventor: SUZUKI HAJIME
IPC: F02M25/022
Filed: 1998-05-19
Abstract: PROBLEM TO BE SOLVED: To establish the engine output to a designated output at a high control speed without hunting by correcting the actuator output, that is, the fuel regulating rack position corresponding to the change of engine output. SOLUTION: An actuator correction amount computing unit 163 compares the actuator output corresponding to the detection value of engine output calculated by an actuator output computing unit 161 with the actuator output set in an actuator output setting device 162 to obtain a deviation to the actuator output from both of the above. This deviation becomes correction amount (y) of actuator output, and the displacement of the fuel regulating rack of a fuel injection pump is corrected by the correction amount (y). Thus, the detection signal L of the engine output is directly input to a governor 16 to correct the actuator output (y) to a designated injection quantity, that is, the total injection quantity of fuel and water, so that the control speed for convertion from only fuel injection to injection of fuel and water is increased.
Patent JP-H083229-A (JP)
Title: Production of aqueous copolymer solution
Inventor: YOSHIDA YOSHIFUMI
IPC: C08F220/56
Filed: 1994-06-20
Abstract: PURPOSE:To efficiently obtain an aq. soln. of a high-molecular ionic copolymer by continuously adding an aq. soln. of an acrylamide compd. to an aq. soln. contg. a specific diallylamine compd. in a specified concn. to thereby copolymerize the two compds. CONSTITUTION:An aq. soln. contg. 5-10wt.% diallylamine compd. of formula I (wherein R<1> and R<2> are each H or methyl; R<3> and R<4> are each H or a 1-6C alkyl; and X<-> is an acid anion (e.g. diallyldimethylammonium chloride) is prepd. Then, to the soln. is continuously added an aq. soln. contg. up to 30wt.% acrylamide compd. of formula II (wherein R<5> is H or methyl; and H<6> and H<7> are each H or a 1-4C alkyl) (e.g. N-methylacrylamide) to conduct copolymn. Thus is obtd. an aq. soln. contg. up to 20wt.% ionic copolymer and having a viscosity at 25 deg.C of 20 cP or higher. A suitable molar ratio of the compd. of formula I to the compd. of formula II is (1:99)-(70:30).
Patent JP-H10324946-A (JP)
Title: High strength non-heat treated steel for steel tube
Inventor: OKAWA KAZUHIDE
IPC: C22C38/38
Filed: 1997-05-27
Abstract: PROBLEM TO BE SOLVED: To provide a high strength non-heat treated steel for steel tube, having toughness and weldability as well as sufficient strength and capable of being induction hardened. SOLUTION: This high strength non-heat treated steel for steel tube has a composition which consists of, by weight ratio, 0.35-0.45% C, 0.10-0.80% Si, 1.2-2.0% Mn, <=0.035% S, 0.3-0.8% Cr, 0.05-0.30% V, 0.01-0.05% Al, 0.008-0.050% N, and the balance Fe with inevitable impurities and in which the carbon equivalent Ceq , represented by Ceq =C+1/7Si+1/5Mn+1/9Cr+1/2V, is regulated to 0.83 to 0.90 and also the amount dT of inclusions based on the JIS point counting is regulated to <=0.12.
Patent JP-H10325634-A (JP)
Title: Absorbing type freezer
Inventor: TANAKA MASAAKI
IPC: F25B37/00
Filed: 1997-05-27
Abstract: PROBLEM TO BE SOLVED: To prevent an absorbing capability from being reduced with unavailable refrigerant when an evaporator and an absorbing device having coillike heat transfer pipes therein are formed in compact size. SOLUTION: An evaporator 42 having a coillike evaporator heat transfer pipe 50 and an absorbing device 43 having a coillike absorber heat transfer pipe 52 are arranged within a common barrel 41 in a vertical direction. Refrigerant evaporated after dispersion of refrigerant liquid from an evaporator dispersion device 51 to the evaporator heat transfer pipe 50 is absorbed into absorbing liquid dispersed from an absorber dispersion device 53. A shielding tray 54 is arranged between the evaporator heat transfer pipe 50 and the absorber heat transfer pipe 52 so as to shield the unavailable refrigerant against direct splashing to the absorber heat transfer pipe 52 even if the unavailable refrigerant is generated at the evaporator 42.
Patent JP-H06346495-A (JP)
Title: Carrying method of waterproof pan or bathtub for bathroom and temporarily attached leg for carrying
Inventor: IMASHIRO TSUNEYUKI
IPC: A47K4/00
Filed: 1993-06-08
Abstract: PURPOSE:To improve carrying efficiency while eliminating return and disposal as in a case where a pallet is used, by temporarily attaching a plurality of temporarily attached legs for carrying to the rib-shaped legs of a base and inserting forks into the spaces of the legs and conducting carrying. CONSTITUTION:The rib-shaped legs 11 of two strips are installed on a waterproof pan 1 for a bathroom while two temporarily attached legs 2 for carrying are mounted on the rib-shaped legs 11. The forks 3 of a forklift can be inserted into a space between each rib-shaped leg 11 in the direction parallel with the longitudinal direction of each rib-shaped leg 11. The forks 3 of the forklift can also be inserted in the direction orthogonal to the longitudinal direction of each rib-shaped leg 11 at that time. On the other hand, channel-shaped members made of a thin spring steel plate are set up onto the top faces of wooden leg pieces and holding pieces are formed, and the holding pieces are mounted easily on the rib-shaped legs 11 of the waterproof pan 1 for the bathroom in the temporarily attached legs 2 for carrying.
Patent JP-S6117163-A (JP)
Title: Two-color electrophotographic method
Inventor: NAKAJIYOU YOSHIHIRO
IPC: G03G15/01
Filed: 1984-07-04
Abstract: PURPOSE:To prevent color mixture to obtain pictures of good quality by controlling the developing bias voltage in the second developing process to a value lower than lower one of the surface potential of a photosensitive body in a part subjected to the first development and that in a part subjected neither the first exposure nor the second exposure. CONSTITUTION:A surface potential V1 of a photosensitive drum 1 in the part subjected to the first development and a surface potential V2 of the photosensitive drum 1 in the part subjected to neither the first exposure nor the second exposure are detected by a potential sensor 9. On the basis of detected potentials, the DC voltage applied to a developing roll 19, namely, the developing bias voltage is controlled to a value equal to or lower than lower one of surface potentials V1 and V2 of the photosensitive drum 1. An AC voltage superposed on the developing bias voltage (DC voltage) acts to oscillate violently plus toner particles so that plus toner particles are easily moved between the developing roll 19 and the photosensitive body 1.
Patent JP-S5661469-A (JP)
Title: Hot-bonding adhesive
Inventor: MIYAZAKI MASAKI
IPC: C09J201/00
Filed: 1979-10-23
Abstract: PURPOSE: To obtain a hot-bonding adhesive which has no adhesion before use, is capable of restoring its adhesion when heated, and is suitable of pressure-sensitive adhesive sheet, by adding a specific amount of a thermoplastic resin foam particle to an adhesive.  
     CONSTITUTION: A thermoplastic resin foam particle is manufactured by expanding an expansible thermoplastic fine particle obtained by the encapsulation of a component capable of giving out a gas when heated in the shell of a thermoplastic resin, etc. Then, the thermoplastic resin foam particle is compounded in a pressure- sensitive adhesive, etc., in such an amount that the adhesion of adhesive components is lost before use but restored when heated to higher than the melting point of the thermoplastic resin foam particle when being used to obtain an objective adhesive. Preferably, 100pts.wt. adhesive component is mixed with approx. 30W 100pts.wt. thermoplastic resin foam particle, whereby forming a hot-bonding adhesive which has no adhesion at ordinary temperature but is capable of restoring its adhesion with the reduction of its volume when heated. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S6116619-A (JP)
Title: Driving circuit for field effect transistor
Inventor: FUKUHARA YOSHIHIKO
IPC: H03K17/691
Filed: 1984-07-02
Abstract: PURPOSE:To prevent the 1st and the 2nd switch from turning on simultaneously and an overcurrent from flowing to the 1st and the 2nd switches by turning off the 1st switch of the driving circuit for field effect transistors (MOSFET) forcibly when the 2nd switch turns on. CONSTITUTION:When a MOSFET8 of the 1st switch turns on, the gate capacity 16 of a MOSFET14 is charged with pulses generated at the 3rd winding n13 to turn on the MOSFET14, and when a MOSFET9 as the 2nd switch connected in series with the 2nd winding n12 turns on, the gate capacity 16 is discharged with an opposite-polarity generated at the 3rd winding n12 to turn off the MOSFET14. This driving circuit for MOSFETs turns off the 1st switch when the 2nd switch turns on when the 1st switch is on, and consequently, the winding inductance of a current transformer never decreases to zero even when an input signal decreases in pulse width to zero, so that an overcurrent flows to either the MOSFET9 nor the MOSFET9.
Patent JP-H04362717-A (JP)
Title: System restarting device
Inventor: ENOKI NOBUYUKI
IPC: G06F15/00
Filed: 1991-06-10
Abstract: PURPOSE:To attain a resuming function in order to automatically resume the state of a computer system set in a power OFF state when a power supply is turned on. CONSTITUTION:In a power OFF state, the states of a COU 101, a memory 102, and a controller 103 are saved into a nonvolatile memory 104 by a system state saving processing means 108. In a power ON state, the states of the CPU 101, the memory 102, and the controller 103 are read out of the memory 104 and the system state is restored by a system state regeneration processing means 111. A process end processing means 109 detects a process that should receive the end information without fail and sends the end information to the process in order to restart the system from the start in the next restart state as long as the processing must be interrupted in a process. Thus it is possible to resume the job carried out in the power OFF state when the power supply is turned on again without setting a low power consumption mode of the CPU 101 nor using any battery. Furthermore the power supply can be infinitely kept in an OFF state.
Patent JP-2000150444-A (JP)
Title: Cleaning method and device used therefor
Inventor: SEI KIKO
IPC: B08B3/12
Filed: 1999-05-18
Abstract: PROBLEM TO BE SOLVED: To prevent defective contacts of a wiring layer by removing contaminant particles on the surface of a wafer by spraying distilled water and aqueous ammonia upon the wafer. SOLUTION: After transistors, each of which is composed of a gate oxide film 102, a gate electrode 104, and a source/drain area, are formed in the active areas of a semiconductor substrate 100, circuit elements, such as bit lines, capacitors, etc., are formed on the substrate 100 and insulating layers 106 are formed on the elements. Then the gate electrodes 104 are exposed by etching the insulating layers 106 and first and second contact holes 108a and 108b are formed. Then, after the wafer 116 obtained in the above-mentioned way is fixed with a vacuum spin chuck, the contaminant particles 112 adsorbed to the surface of the wafer 116 are removed with a high-speed spin type brush 1108 by spraying distilled water and aqueous ammonia upon the wafer 116 while the wafer 116 is rotated.