baber/WOPTO huggingface dataset:
Patent JP-H06120174-A (JP)
Title: Manufacture of semiconductor device
Inventor: SEKI TETSUYA
IPC: H01L21/302
Filed: 1992-10-05
Abstract: PURPOSE:To remove sidewall protective films formed in an etching of a polycrystalline silicon and a polyside with a good reproducibility in a manufacture of a semiconductor device. CONSTITUTION:Sidewall protective films 5 are removed from sidewalls through emitting ions of CF or CHF gas slantly to a substrate 1. Further, the ions are slantly emitted in an over-etching of a polycrystalline silicon 3 and a polyside. Accordingly, the stability of a removal and the selectivity to a priming oxide film are improved as compared with a conventional wet treatment, and a fine machining of a gate electrode on a gate oxide film formed in a thin thickness can be performed.
Patent JP-H04144654-A (JP)
Title: Production of tartary buckwheat flour having high rutin content and instant buckwheat
Inventor: SUGIYAMA HITOSHI
IPC: A23L7/10
Filed: 1990-10-05
Abstract: PURPOSE:To produce Tartary buckwheat flour having high rutin content and retained in high rutin amount when treated with water by subjecting tartary buckwheat flour to heat treatment. CONSTITUTION:Tartary buckwheat seed or buckwheat flour obtained by peeling skin of the seed and crushing the seed is subjected to heat treatment at 70-120 deg.C, preferably 80-105 deg.C to afford Tartary buckwheat flour having high rutin content and wheat flour, common salt, ordinary buckwheat, etc., is blended to the wheat flour and the blend is processed according to an ordinary method to produce instant buckwheat.
Patent JP-H08127335-A (JP)
Title: Brake pressure control valve
Inventor: TAKAIWA KIYOYUKI
IPC: B60T15/36
Filed: 1994-10-31
Abstract: PURPOSE: To easily provide high reliability and high responsiveness by eliminating necessity for a signal pressure chamber and a solenoid valve, decreasing a number of necessary part items, and reducing a cost. CONSTITUTION: A main piston 25, received in a housing 21 to have a valve body 31 in the point end, is energized in a direction of separating from a valve seat 36 by the first spring 28, with the valve element 31 and the valve seat 36 coming into contact and separating, to constitute an opening/closing valve. A permanent magnet 37 is provided in a rear end of the main piston 25, to provide in a housing 21 an electromagnet 40 stored in a storage chamber 27 partitioned in the interior side of an output pressure chamber 26 by the main piston 25 to actuate the valve element 31, and at operation time, the same polarity part of the electromagnet 40 and the permanent magnet 37 is opposed to each other, to generate repulsive magnetic force larger than energizing force of the first spring 28.
Patent JP-H1092840-A (JP)
Title: Heterojunction bipolar transistor and its manufacture
Inventor: NAKAGAWA ATSUSHI
IPC: H01L29/73
Filed: 1996-09-17
Abstract: PROBLEM TO BE SOLVED: To improve the manufacturing yield of a heterojunction bipolar transistor, thin the film of a base region, and realize power consumption reduction due to reduction of the width of an emitter region. SOLUTION: The following are formed in order on a semiconductor substrate 1, a collector region 3 composed of N-type GaAs, a base region 4 composed of P-type GaAs, a first emitter region 5a composed of N-type Inx (Gay Al1-y )1-x As, and a second emitter region 5b composed of N-type Gaz Al1-z As. A hetero junction bipolar transistor is constituted by firstly forming the following in order on the semiconductor substrate 1; the collector layer 3 composed of N-type GaAs, the base layer 4 composed of P-type GaAs, the first emitter layer 5a composed of N-type Inx (Gay Al1-y )1-x As, and the second emitter region 5b composed of N-type Gaz Al1-z As. Next, the first emitter layer 5a is used as a stopper, only its upper part is selectively etched, and the second emitter region 5b is formed. By etching the lower part of the second emitter region 5b, the first emitter region 5a is formed.
Patent JP-H07273213-A (JP)
Title: Semiconductor device
Inventor: SAWADA SHIZUO
IPC: H01L21/8238
Filed: 1994-10-31
Abstract: PURPOSE:To easily obtain MOS transistors whose wells are different from each other in threshold voltage by a method wherein a third well of a second conductivity type is formed in a first well of a first conductivity type, a second well of a second conductivity type is electrically isolated from the third well, and the second and the third well are set different from each other in surface concentration. CONSTITUTION:Boron ions are implanted into a predetermined first P-well region 102 and a predetermined second P-well region 102' in a cell section A of a semiconductor substrate 101, and the predetermined well regions 102 and 102' are turned into the regions 102 and 102' by a heat treatment. Phosphorus ions 104 are implanted into a first N-well region and a second N-well region through a resist 103, which are thermally treated to be formed into a first P-well region 107 in a cell section A and a second P-well 105 in a peripheral circuit section B. Thereafter, an insulating film 108, a storage node electrode 109, an N<+>-type diffusion layer 110, a gate electrode 111, and a wiring layer 112 are formed in the cell section A, and gate electrodes 113 and 114, diffusion layers 115 and 116, a wiring layer 117, and others are formed in the peripheral circuit section B for the formation of a CMOSD-type RAM.
Patent JP-H11150130-A (JP)
Title: Manufacture of schottky gate transistor
Inventor: LOTHIAN JAMES ROBERT
IPC: H01L29/423
Filed: 1998-09-21
Abstract: PROBLEM TO BE SOLVED: To obtain a semiconductor element having a T-shaped feature in the vertical direction by specifying the T-shaped feature through the use of a thick photoresist layer having two levels, forming a contact structure by depositing a metal for gate contact in the T-shaped feature, and then hardening the photoresist after patterning the photoresist by photolithography. SOLUTION: In a T-shaped Schottky gate structure used for group III-V field effect transistor device, a gate is formed on an active layer 12 in a recessed state by wet-etching a window in a cap layer 13. When the Schottky gate 17 for MESFET device is reverse biased, an n-type carrier is depleted from a depletion region 18 below the Schottky gate, and such a p-type region that pinches off the flow between a source and drain is formed. The T-shape of the gate is prescribed to be vertical and to have a vertical section 21 and a horizontal section 22.
Patent JP-H03223719-A (JP)
Title: Formation of electrode
Inventor: NISHINO HIROKI
IPC: H05B33/12
Filed: 1990-10-03
Abstract: PURPOSE:To prevent a conductive film from corroding in an electrolyte by bringing an ITO film which is connected electrically to an Al film into contact with the electrolyte when the substrate where the ITO film and Al film are formed is dipped in the electrolyte. CONSTITUTION:An anticorrosive ITO film 4A and an auxiliary ITO film 7B are formed on the glass substrate 3 by EB vapor deposition and the Al film is further formed by sputter vapor deposition. The anticorrosive ITO film 4A is covered completely with the Al film 5 and the auxiliary ITO film 7B overlaps with the Al film 5 at an end part. Therefore, when the anticorrosive ITO 4A and auxiliary ITO film are connected electrically and a local potential difference is generated between both the ITO films to concentrate corrosion 12B on the auxiliary ITO film, thereby suppressing the corrosion of the anticorrosive ITO film. Consequently, the conductive film is prevented from corroding in the electrolyte.
Patent JP-H07116897-A (JP)
Title: Mechanical press
Inventor: KATO HEIZABURO
IPC: B30B15/00
Filed: 1993-10-26
Abstract: PURPOSE:To eliminate uneven rotation of an inputting shaft and reduce vibration and noise by conceling the change of periodical load of inertia repeatedly generated every rotation when a mechanical press is operated by compensating with other system in which energy is preserved to balance energy. CONSTITUTION:A fly wheel 19 is fixed to one end part, a driving plate cam 16 is fixed to the intermediate part and a torque compensating plate cam 23 is provided on the other end part of the inputting shaft 15 and a cam follower 26 fitted to the tip end part of a piston rod 25 of an elastic force generating device 24 is pressurized to contact with the torque compensating plate cam 23 and the change of load generated in the inputting shaft 15 is canceled. A compressing coil spring 28 or an air spring is used as the elastic force generating device 24.
Patent JP-H06116755-A (JP)
Title: Resist peeling agent
Inventor: TAKASE YUZO
IPC: H01L21/30
Filed: 1992-10-06
Abstract: PURPOSE:To provide the peeling agent which consists of an aq. soln. of the alkanolamine expressed by specific formula, has no corrosiveness to aluminum and can easily peel away a water-soluble resist from an aluminum substrate. CONSTITUTION:This peeling agent consists of the aq. soln. of the alkanolamine expressed by the formula. In the formula, R is H, methyl, hydroxyethyl, hydroxypropyl which are respectively the same or different groups; R' is ethylene; n is 0 to 4; at least one of R is groups exclusive of H when n is 0. Further, >=1 kinds of formic acid, acetic acid, oxalic acid, sulfophosphoric acid and boric acid maybe added to the peeling agent. As a result, the aluminum corrosion is further suppressed. The water-soluble resist is easily peeled away from the aluminum substrate without corroding the aluminum or with the extremely little corrosion by applying such peeling agent to the aluminum substrate by a dipping method or spraying method.
Patent JP-H07123384-A (JP)
Title: Multimedia conference proceeding preparing device
Inventor: NOGAMI KAZUO
IPC: H04L12/18
Filed: 1993-10-26
Abstract: PURPOSE:To provide the multimedia conference proceeding preparing device in a dispersed conference system where a person can participate in a conference in his own seat., he can edit a proceeding in his seat and he can easily prepare, approve and distribute the proceeding. CONSTITUTION:A dispersed conference system performing a multi-spot communication conference is constituted by connecting a conference terminal 40 and a conference server 60 where multimedia information composed of video, sound and data is treated by a communications network 300. In the conference terminal 40 and the conference server 60, a sound and video recorder for recording the sound and video in the conference to prepare a multimedia conference proceeding and a sound and video controller performing instructions on the start and termination of the recording of video and sound are provided.
Patent JP-H05105035-A (JP)
Title: Wiper controller
Inventor: NOMURA TETSUYA
IPC: B60S1/08
Filed: 1991-10-16
Abstract: PURPOSE:To judge a snow state with certainty and prevent any overwiping of a windshield wiper from occurring at the tine of snowing. CONSTITUTION:A wiper controller is provided with a means (step 4)for judging whether the diameter of a raindrop pulse detected by a rain sensor is within specified range or not, and another means (step 5 or 10) which is so judged that it is a snow state in the case where the raindrop pulse, whose judged diameter is in specified range, is detected more than the specified number within a specified time, and when it is judged the snow state, or within the specified time after releasing the snow state, wiper control (for example, a control threshold value in relation to a raindrop pulse integrated value is made to go up) at the snow different from the rainfall time is carried out.
Patent JP-H0993071-A (JP)
Title: Surface mounted piezoelectric oscillator and production of the same
Inventor: IDE TOSHINORI
IPC: H03H9/02
Filed: 1995-09-20
Abstract: PROBLEM TO BE SOLVED: To provide a surface mounted piezoelectric oscillator with which the frequency accuracy and characteristics of oscillator are improved by fixing an external terminal provided in one direction of piezoelectric oscillator and a lead electrode, which is positioned in the space of a vessel formed in the same direction as that terminal, by welding. SOLUTION: Two external terminals 4 and 5 are provided in one direction of a piezoelectric oscillator 1. Lead electrodes 18 and 19, for which one part is embedded, are provided in a vessel 15 in the same direction as terminals 3 and 4 and above and under those lead electrodes 18 and 19, spaces 16 and 17 are formed. After the piezoelectric oscillator is housed in the vessel, the external terminals 4 and 5 insert electrodes for resistant welding from the upside and downside while utilizing these spaces 16 and 17 and resistantly welds them to the lead electrodes 18 and 19. This space is filled with potting resin 22 and the resin is hardened. Since the piezoelectric oscillator is housed after the lead electrodes and the vessel are molded, the oscillator is not exposed at high temperature in molding and the frequency accuracy is not degraded.
Patent JP-H1176733-A (JP)
Title: Adsorbent filter and its production
Inventor: MITSUTA SUSUMU
IPC: B01D53/04
Filed: 1997-09-12
Abstract: PROBLEM TO BE SOLVED: To efficiently treat the gas to be treated with activated carbon fibers by stacking plural sheets of adsorbent units having activated carbon fibers implanted on sheet base bodies. SOLUTION: The adsorbent filter 1 is a rectangular parallelepiped block stacked body comprising many layers of adsorbent units 2 each in a sheet state. The adsorbent unit 2 consists of a base body 3 and activated carbon fibers 4 implanted on the base body 3. The base body 3 is a sheet member and is made of a resin or metal flat plate, paper or a porous material having many air-permeable pores. As for the porous material, a foamed polyurethane resin is preferable. The activated carbon fibers 4 have many pores and densely implanted on the base body 3. Thereby, air passages produced by the activated carbon fibers are formed between the adsorbent units, and the objective gas can be efficiently treated by the activated carbon fibers.
Patent JP-H03204932-A (JP)
Title: Removal of coating film on silicon layer and selective removal of silicon natural oxide film
Inventor: IZUMI AKIRA
IPC: H01L21/308
Filed: 1989-10-14
Abstract: PURPOSE:To effectively avoid the formation of a silicon natural oxide film on the surface of a silicon layer by a method wherein a substrate is contained in a container airtightly isolated from atmospheric air while hydrofluoric gas anhydride and alcohol are fed to the container to expose the substrate thereto so as to remove a film coated on the surface of the silicon layer on the substrate. CONSTITUTION:A silicon wafer 10 whereon an oxide film is formed is carried to and arranged in a container 12 of a device; after completely sealing the inside of the container 12, high purity N2 gas is fed from a feed source 34 of nitrogen gas to the container 12 through feed pipes 28, 20 to purge the inside of the container 12. Next, the temperature of the silicon wafer 10 is adjusted within the range of room temperature -40 deg.C and then respective gas vapors e.g. anhydrous hydrofluoric gas at a flow rate of 100-1000cc/min, baffling N2 gas at a flow rate of 500-7000cc/min and nitrogen gas at a flow rate of 0-5000cc/ min for producing methanol (or ethanol, isopropyl alcohol) vapor are fed to the container 12 to be cleaning-processed. Through these procedures, a natural oxide film on the surface of the silicon wafer 10 can be removed.
Patent JP-H04146061-A (JP)
Title: Grinding device for drill
Inventor: OMURA HIROSHI
IPC: B24B3/24
Filed: 1990-10-05
Abstract: PURPOSE:To increase efficiency of drill-grinding operation by using a truncated cone shape grinding wheel having a bottom angle equal to an angle formed between a flat plane orthogonally intersecting the axial line of a drill and including an imaginary intersection line formed by the paired rake faces of the drill, and the rake face. CONSTITUTION:A grinding wheel 20 arrangement is provided such that a plurality of truncated cone shape grinding wheels are superposed one over the other for performance of grinding in a prescribed amount, each grinding wheel having a bottom angle equal to an angle defined between a flat plane orthogonally intersecting the axial line of a drill 10 and including an imaginary intersection line formed by the paired rake faces 11 and the rake face. Subsequently, the drill 10 and the grinding wheel 20 are relatively moved through simultaneous 2-axis control of NC device, thereby performing grinding of the drill 10.
Patent JP-S61165131-A (JP)
Title: Channel processor
Inventor: KOYABU MASAO
IPC: G06F13/12
Filed: 1984-12-19
Abstract: PURPOSE:To simplify the control of an input/output interface by executing a micro-instruction which is made to wait for an execution end by time-out or a state of the input/output interface, and restarting the execution from a +n address, when a designed condition has been detected. CONSTITUTION:In a channel processor which is controlled by a microprogram, when controlling an input/output interface, a wait instruction provided with a mask bit for detecting turn-on and turn-off of a tag signal of the input/output interface in accordance with the mask bit of time-out and a state of an input/ output processing of that time is provided, and when the mask bit is '1' and the state concerned is detected, the execution of the wait instruction is ended. When said instruction is ended by time-out, and at other time, the next micro- instruction is executed from an address which has added +1, and an address which has added +2, respectively.
Patent JP-2001093344-A (JP)
Title: Coaxial mixed flexible flat cable
Inventor: KATAGIRI NAOKI
IPC: H01B7/08
Filed: 1999-09-22
Abstract: PROBLEM TO BE SOLVED: To provide a flat cable and a coaxial cable, conventionally requiring separate wirings and connections depending on the types of transfer signals, or a twisted pair cable, requiring shielding, in the form of one axial mixed flat cable. SOLUTION: A coaxial mixed flexible flat cable 10 is formed by mixing two fine coaxial wires 4 having an internal insulator 6, an external conductor 7 and a sheath 8 provided on the outer periphery of a center conductor 5 in sequence, in thirteen straight angle conductors 2, arranging them in parallel at a certain clearance between two insulating films 1, 1, fusing the fine coaxial wires 4 and the straight angle conductors 2 at their ends exposed at a fixed length, and bonding reinforcing films 3 to the single sides of the exposed ends.
Patent JP-H02115133-A (JP)
Title: Production of terpinolene
Inventor: TANABE KOZO
IPC: C07C5/25
Filed: 1988-10-26
Abstract: PURPOSE:To enable inexpensive and stable production of terpinolene using no toxic substance without formation of waste water by isomerizing limonene with a zirconium oxide catalyst which is heat-treated in air and bears sulfate ions. CONSTITUTION:In the production of terpinolene [1,4(8)-p-menthadiene] by isomerization of limonene (such as d-limonene from natural orange oil), zirconium oxide bearing sulfate groups heat treated in air is used as a catalyst. The catalyst has stabilized activity and prepared by dipping Zr(OH)4 which is obtained by hydrolysis of a Zr compound such as ZrOCl2.8H2O, in an aqueous solution containing SO4<-2> such as aqueous sulfuric acid and heat-treating the product at 200 to 800 deg.C. The isomerization reaction is conducted at 20 to 180 deg.C for 0.5 to 30 hours. Terpinolene is used as a raw material of synthetic perfumes and a radical polymerization controller.
Patent JP-H1180294-A (JP)
Title: Resin composition and cured product thereof
Inventor: YOKOSHIMA MINORU
IPC: C08F2/50
Filed: 1997-09-16
Abstract: PROBLEM TO BE SOLVED: To obtain a one-package composition which can be developed with an organic solvent or a mixture of a water-soluble organic solvent with water and is used for permanent resists by including an epoxy (meth)acrylate (A), a diluent (B), a photopolymerization initiator (C) and a carbodimido compound (D). SOLUTION: Component A is a reaction product of an epoxy resin having at least two epoxy groups (e.g. novolac epoxy resin) with (meth)acrylic acid. Component B is exemplified by ethyl methyl ketone or 2-hydroxy ethyl(meth) acrylate. Component C is exemplified by acetophenone. Component D is easily commercially available. The mixing ratio is desirably such that component A is used in an amount of 10-80 wt.% based on the composition, component B is used in an amount of 10-200 pts.wt. per 100 pts.wt. component A, component C is used in an amount of 0.1-30 wt.% based on the composition, and component D is used in an amount of 0.5-30 wt.% based on the composition.
Patent JP-H08106039-A (JP)
Title: Optical deflecting scanner
Inventor: NABETA NOBORU
IPC: H04N1/113
Filed: 1994-10-06
Abstract: PURPOSE: To facilitate the assembly of a detection mirror in a scanning start signal detection system. CONSTITUTION: A part Lp of a laser beam which is deflected to perform scanning by a rotary polygon mirror 20 is introduced as a scanning start signal to the light receiving surface 50a of an optical fiber 50 by the detection mirror 60. The rest of the laser beam passes an image-formation lens system 40, is taken out from the window 71 of an optical box 70, and forms an image on a photoreceptor being a rotating drum which is not shown in figure. The detection mirror 60 is provided with a block-like main body 61 made of aluminum, and one side surface of the main body 61 is made a mirror surface to be formed as a reflection surface 60a. Since the main body 61 is like a block, a plate-like supporting body and the optical box 70 are directly assembled by a screw 63 piercing the main body 61.
Patent JP-H04126741-A (JP)
Title: Thermoplastic resin composition
Inventor: KIHIRA MICHIHARU
IPC: C08L23/26
Filed: 1990-09-17
Abstract: PURPOSE:To obtain the subject composition having excellent moldability, solvent resistance, heat-resistance, mechanical strength, etc., and suitable as a material for automobile and electrical and electronic fields by compounding a specific unsaturated copolymer with a phenylene ether resin. CONSTITUTION:The objective composition can be produced by compounding and kneading (A) 10-90wt.% of a modified unsaturated copolymer produced by reacting (i) a 2-12C alpha-olefin (e.g. ethylene) with (ii) 0.05-50mol% (in the copolymer) of a non-conjugated chain diene expressed by formula (R<1> to R<3> are H or <=8C alkyl; n is 1-10) and reacting the resultant unsaturated copolymer with (iii) preferably 0.01-30wt.% (based on the modified copolymer) of a compound having hydroxyl group and ethylenic double bond (e.g. 2-hydroxyethyl acrylate) and (B) 90-10wt.% of a hydroxyalkylated phenylene ether resin.
Patent JP-H02116140-A (JP)
Title: Semiconductor device
Inventor: TSUCHIYA CHIKARA
IPC: H01L21/66
Filed: 1988-10-26
Abstract: PURPOSE:To obtain a monitor circuit with which threshold voltages of field- effect transistors MOS-FET by a method wherein predetermined currents are applied to the respective MOS-FET's through first and second pads and the potentials of the respective pads are measured. CONSTITUTION:In a monitor circuit for an N-type channel MOS-FET, the drain and gate of an N-type channel transistor Tn are short-circulated with each other and connected to a pad P1 and the source and back-gate of the transistor Tn are connected to the lowest potential (each potential) part Sub in a substrate. At the time of testing, a tester TE having a constant current source 1 is connected between the pad P1 and the lowest potential part Sub and a predetermined current is applied to the transistor Tn to facilitate the test of the threshold voltage of the MOS-FET. Further, the drain and gate of a p-type channel transistor Tp are short-circuited with each other and connected to a pad P2 and the highest potential VDD in the substrate is applied to the source and back-gate of the transistor Tp. At the time of testing, the tester TE having the constant current source 1 is connected between the pad P2 and the highest potential VDD to facilitate the test of the threshold voltage.