baber/WOPTO huggingface dataset:
Patent JP-H01189808-A (JP)
Title: Curl cord having composite coat
Inventor: SAZUKA MAMORU
IPC: H01B3/30
Filed: 1988-01-23
Abstract: PURPOSE:To obtain excellent flame resistance, restoration ability and elongation ability of a curled cord having composite coat by making the coating materials of the outer most layer and the other layers with components of specific characteristics respectively. CONSTITUTION:A bare electric wire 3, which is made by stranding fine wires of soft copper or the like, is coated with elastomer composition having an oxygen index of 22.0 or above and an impact resilience modulus (JIS K6301) of thermoplasticity being 30% or above as an insulating material 2. A multiple number of thus obtaining insulated wires are combined and are coated with coating material 1 of flame resistance resin composition, such as polyvinyl chloride having an oxygen index of 25.0 or above as the outermost layer resin 1. The cord, which is thus obtained, is curled to make it into a curl cord. The curl cord having the above coating has excellent flame resistance, restoring and elongation ability.
Patent JP-H06233556-A (JP)
Title: Reciprocation driving gear
Inventor: HIGUCHI TOSHIRO
IPC: H02N2/00
Filed: 1993-01-29
Abstract: PURPOSE:To reduce the time for deceleration and acceleration in a reciprocating operation to a minimum, to make a quick return and to realize it by a comparatively small mechanism. CONSTITUTION:A base 1 on which a guide 10 is formed, hammers 3 which are installed at both ends of the base 1, a moving object 7 which is set on the guide 10 and a detection device which detects the position of the moving object 7 are installed in a reciprocation driving gear. The hammers 3 are driven on the basis of an output signal from the detection device, and the moving object 7 is returned and operated by the hit of the moving object 7 by the hammers 3.
Patent JP-S63182022-A (JP)
Title: Treatment of exhaust gas
Inventor: SHINOZAKI SHINICHI
IPC: B01D53/60
Filed: 1987-01-23
Abstract: PURPOSE:To collect sulfur oxide and nitrogen oxide as solid matters together with dust in an electrostatic precipitator by projecting a pulse streamer to exhaust gas to produce various radicals and allowing them to react with sulfur oxide and nitrogen oxide incorporated in the exhaust gas and furthermore to react with coexisting NH3. CONSTITUTION:An electrostatic precipitator 11 is separated into a charge reaction part 12 and a dust collection part 13. In the charge reaction part 12, pulse electrodes 14 and ground-side electrodes 15 are staggered arranged respectively and pulse streamers are uniformly generated in the space. Further in the dust collection part 13, dust collection parts 16 and discharge electrodes 17 are provided. Ammonia (NH3) is added into exhaust gas and this exhaust gas of this state is passed through the charge reaction part 12 and subjected to irradiation with pulse streamers. Thereby various radicals are produced by H2O and O2 or the like incorporated in exhaust gas. These radicals are allowed to react with sulfur oxide and nitrogen oxide incorporated therein and furthermore to react with the added NH3 and these oxides are converted into solid matters such as ammonium sulfate and ammonium nitrate. The solid matters are collected in the dust collection part 13 together with dust.
Patent JP-H03219676-A (JP)
Title: Semiconductor device and its manufacturing method
Inventor: MIZUNO TOMOHISA
IPC: H01L29/78
Filed: 1990-01-25
Abstract: PURPOSE:To achieve a large current-drive capacity and high integration by forming a channel region along a side surface of a column-shaped region with a curved part on a semiconductor substrate and by forming an FET with a gate electrode having a curved part. CONSTITUTION:A first groove 3 is produced within a p-type silicon substrate 1 and a spiral-shaped column-shaped region 4 is formed. Then, a gate insulating film 5 is formed on the surface, etc., of the column-shaped region 4. Then, a second groove part 91 and a third groove part 92 are formed, arsenic is ion- implanted, and then n<+> source/drain diffusion layers 101 and 102 are formed. Then, an aluminum film 11 is deposition-formed over the entire surface, is etched, is buried into second and third groove parts 91 and 92, and then wire is formed. When the thickness of gate electrode 6 is set to T and the width between each column-shaped region 4 is set to d, the function of these is set to d>2T. Further, when the width of a gate depletion layer is xj and that of the column-shaped region 4 is b, a relation b<=2xj can be satisfied.
Patent JP-H03220494-A (JP)
Title: Fuel assembly for boiling water nuclear reactor
Inventor: FUJITA SHIGERU
IPC: G21C3/326
Filed: 1990-01-25
Abstract: PURPOSE:To maintain burnup, operability and a core life at fairly good condition and to diminish a pressure loss at an upper part of a channel by surrounding a large diameter water channel tube with a fuel part having a highly enriched nuclear fuel as well as by making the intermediate part of the tube to be thin in order to decrease resistivity of the channel. CONSTITUTION:On an imaginary fuel assembly in which most fuel rods are not shown and which is axially shortened, a water channel tube 2 is made to be a shoulder part of which outer cross-sectional area decreases suddenly at the height of the lower end of a natural uranium pellets U2 layer in a fuel rod 1, and therewith an upper once-through flow port h2 is formed. The seventh spacer S7 from a bottom loosely and horizontally supports the fuel rod 1 and the thinned part of the channel tube 2, at a position higher than the shoulder part. By this procedure, a bottle neck situation at the upper part of the channel tube caused by boiling of cooling water of a reactor core consisting of many fuel bundles, at a stage of control rod withdrawal, is eliminated at a region higher than the shoulder part. Non-boiling cooling water spouting from the once-through flow port h2 contributes to increment of liquid film just below the spacer and therewith a pressure loss decreases. Also, a stable heat removal just below the spacer 7 can be well maintained.
Patent JP-S57130799-A (JP)
Title: Method and device for nut screwing
Inventor: NAKAKOSHI KIICHI
IPC: B30B15/04
Filed: 1981-02-03
Abstract: PURPOSE:To improve the efficiency of screwing work of heavy weight nuts by floating and supporting the nuts to be screwed to the bottom ends of tie rods for fastening of a frame block by means of air bearings in vertical assembling with a large size press. CONSTITUTION:Legs of a large size forging press are placed on a stand 8 with an overhead crane and a bed 2 is superposed on the legs 1, after which 4 pieces of tie rods 5 are inserted from above the bed and are erected thereon. Next, uprights 3 and crowns 4 are inserted to the rods 5 from the top ends thereof, and are stacked successively on the bed 2, thence nuts 6, 7 are screwed, whereby these are assembled vertically. In screwing the nuts 6, first, the nuts 6 are mounted to supporting devices consisting of rotary tables 9 with air bearings 11, etc., and high pressure air is supplied continuously to the air bearings 11 through flexible hoses 13, adjustable regulating valves 10 from an air source 12. Thereby, the nuts 6 and the tables 9 are floated and the nuts 6 are brought easily into right under the rods 5, and are rotated and screwed, thus even in the early period of screwing, the nuts 6 are not supported by suspension and their seizure does not occur.
Patent JP-S56111216-A (JP)
Title: Preparation of semiconductor device
Inventor: KANAZAWA MAMORU
IPC: H01L21/283
Filed: 1980-02-07
Abstract: PURPOSE: To prevent the disconnection of wiring caused by stepped layers, by activating an SiO 2  film on an Si substrate, etching the SiO 2  film by means of an ion etching with a mask coated, opening a mouth by an etching solution and then giving a tapered inclination to the mouthed portion.  
     CONSTITUTION: After stacking an SiO 2  film 3 on a p type Si substrate 2 having n +  layer 3, the surface of the film 3 is treated by exposure to the plasma of CF 4 gas. Then with a resist-mask 5 is coated, the SiO 2 3 is etched until about 0.2μm is left unetched by reactive ion etching method wherein the CF 4  and H 2  gases are introduced to generate plasma. The remaining film 3' is etched by being immersed in the water solution of NH 4 F. At the time the portion of the surface-treated SiO 2  and the film 3' both near the mouth are etched isotropically so that a hole 7 with tapered inclination is formed. Then the mask 5 is removed and the Al wiring 8 is formed. With such an arragement, no disconnection of wiring owing to stepped layer's is caused. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-H04241725-A (JP)
Title: Vortex chamber type combustion chamber for diesel engine
Inventor: HATAURA KIYOSHI
IPC: F02B3/06
Filed: 1991-01-11
Abstract: PURPOSE:To improve a mixing condition of injected fuel and air and combustion performance by striking the fuel injected from a nozzle against a gas expulsive means in a vortex chamber for scattering, and forming a passage expanding recessed surface on a peripheral surface on an extended side of an injection port of a gas expulsive means. CONSTITUTION:An injection port 2 is tangentially communicated with a vortex chamber 1 of a Diesel engine, while a main combustion chamber 3 is communicated with the vortex chamber l through the injection port 2. A fuel injection nozzle 4 is faced to the vortex chamber 1, while a gas expulsive mans 5 is arranged on a center of the vortex chamber 1. In the above-mentioned vortex chamber type combustion chamber, an injection axial center 6 of the fuel injection nozzle 4 is set in a direction crossing with the gas expulsive means 5. The plural kinds of fuels 7 are struck against an injected fuel striking part 9 on an outer peripheral surface of the gas expulsive means 5 and in the vicinity of an intersection 8 with the injection axial center 6. A passage expanding recessed surface 31 is formed on a peripheral surface 40 on an extended side of the injection port lapping with an extended space 33 in the vortex chamber of the injection port 2, selectively out of an outer peripheral surface of the gas expulsive means 5.
Patent JP-H02197237-A (JP)
Title: Motor liquid-cooled structure
Inventor: NAKAMURA ATSUO
IPC: B23Q11/12
Filed: 1989-01-25
Abstract: PURPOSE:To contrive to prevent the leakage of a cooling liquid and to improve the cooling capacity of an apparatus by inserting a pipe member having a diameter smaller than that of a through hole into said through hole provided at a rotating shaft and by providing a fringer on the side adjoining a rear housing. CONSTITUTION:A rotating shaft 14 is coaxially provided with a through hole 40. The tip of said through hole 40 is closed by a plug member 38 and a pipe member 30 having a diameter smaller than that of the through hole 40 is inserted into said hole. A cooling liquid from said pipe member 30 goes through a passage between said through hole 40 and pipe member 30 to cool the rotating shaft 14 and the rotor 12. Also, a fringer 50 is provided at the rotating shaft 14 between an oil seal 56 for sealing a trap chamber 46 and a storage housing 66. Said fringer 50 rotates together with the rotating shaft 14 to shake off the cooling liquid leaking from said oil seal 36 by its centrifugal force and to prevent said liquid from entering a rotation detector 54. Thus, the leakage of a cooling liquid is prevented and the output of a motor can be made higher.
Patent JP-H04254299-A (JP)
Title: Coupling device for space equipment
Inventor: YAMAMOTO YOSHITERU
IPC: B64G1/66
Filed: 1991-02-05
Abstract: PURPOSE:To open/close a protective cover with simple and compact constitution by turning the protective cover, which covers possible to open/close an interface part, through a cam mechanism by pressing a protrusive part when a plurality of space equipments approach so as to be connected. CONSTITUTION:At normal time, that is, before a space equipment main unit 2 is connected to a pay load 1, an interface part 9 provided in a coupling surface 7 of the space equipment main unit 2, is covered with a protective cover 11 energized by a spring 8. Here, a protrusive part of the protective cover 11 is engaged with a hole part of the coupling surface 7 where the interface part 9 appears. When the space equipment main unit 2 approaches so as to be connected with the pay load 1, a damper 15 provided in a coupling surface 5 of the pay load 1, is brought into contact with the coupling surface 7 of the space equipment main unit 2 to press the protective cover 11. Then by successively moving a cam pin 22 in a cam groove 21, each interface part 9, 10 of the space equipment main unit 2 and the pay load 1 is connected to each other.
Patent JP-2000216751-A (JP)
Title: Ofdm system transmitter and ofdm system transmitting method
Inventor: IMAICHI KAZUFUMI
IPC: H04J11/00
Filed: 1999-01-22
Abstract: PROBLEM TO BE SOLVED: To enable phase matching, without being influenced by the change of clocks and to insure quality in multistage connection by providing a transmitter with a delay circuit to which frame structure data is inputted, while being synchronized with a frame pulse and which synchronizes it with a control signal from a receiver and outputs it. SOLUTION: A transmitter makes input data a prescribed data structure through a series of processing and then inputs data subjected to inverse Fourier transform processing with an IFFT circuit 8 to a data delay circuit 9 with a FIFO configuration. The circuit 9 resets a write pointer with a frame pulse generated by a framing circuit 5, resets a reading pointer with a control effective signal from a receiver to perform reading, performs D/A conversion of delay data, subsequently performs orthogonal modulation on it and transmits it. It is possible to eliminate data errors and data omissions due to step out without synchronizing the clock phases of the transmitter and the receiver, by providing a simple delay circuit in this way.
Patent JP-S59140727-A (JP)
Title: Frequency conversion system
Inventor: SASAKI SUSUMU
IPC: H04B1/26
Filed: 1983-01-31
Abstract: PURPOSE:To prevent deterioration in the noise index of a trailing circuit by controlling the attenuation characteristics of a variable attenuator to the opposite characteristics when the input level of a high-frequency signal exceeds a specific level. CONSTITUTION:When the input level of the high-frequency level rises and the output level of an intermediate frequency amplifier IFA also rises above a specific level, a level detector LDET increases the amount of attenuation of the 1st variable attenuator ATT1 and decreases the amount of attenuation of the 2nd variable attenuator ATT2. Consequently, the high-frequency signal amplified by a low-noise high-frequency amplifier RFA with high gain is attenuated by the ATT1, so a frequency converter MIX and the amplifier IFA operate within a linear operation range without being saturated. Therefore, the deterioration in the noise index of the trailing circuit is prevented.
Patent JP-S61174884-A (JP)
Title: Image pick-up device
Inventor: ARAI HIDEYUKI
IPC: H04N5/225
Filed: 1985-01-30
Abstract: PURPOSE:To make unnecessary a synchronizing separator circuit and a horizontal vertical synchronizing signal generating circuit and to make a constitution simple by providing a monitoring device driven by a synchronizing signal generating means and a synchronizing signal generating means to drive an image pick-up means. CONSTITUTION:An optical image of an object through an image pick-up lens 14 outputs an NTSC signal through an image pick-up element 2, a pre-amplifier 3, a signal processing circuit 4 and an encoder circuit 5. The NTSC signal is recorded through a recording signal processing circuit 6 of a video by a video head 13 to a tape. The NTSC signal is sent through a video amplifier circuit 9 to an image receiving tube 12 as a video signal. On the other hand, a horizontal and vertical synchronizing signal is generated from a horizontal vertical synchronizing signal generating circuit 8, the synchronizing signal generates a saw tooth voltage at horizontal and vertical deflecting circuits 10 and 11, this is amplified by the power and applied to respective deflecting coils. Consequently, an electronic beam by the video signal is deflected electro- magnetically and the picture is formed at the image receiving tube 12.
Patent JP-H04314414-A (JP)
Title: Door opening device for dish cleaner
Inventor: MIYAZAKI KOICHIRO
IPC: A47L15/42
Filed: 1991-02-05
Abstract: PURPOSE:To relieve mechanical impact caused when opening a door of an undercounter dish cleaner, relieve impact sound, and to reduce the size of the door support structure. CONSTITUTION:The lower part of the door 4 is rotatably supported on a support shaft 8 with a support member 9. Operation of opening and closing the door 4 enables the first contact portion 19 on a support member 9 to impactingly contact a shock absorber. In the next process, the device is so constituted that the second contact portion provided likewise on the support member 9 out of the first contact portion in the direction of the rotation radius is fully opened and comes into contact with the stopper to offer a buffer and determine the position.
Patent JP-S61173294-A (JP)
Inventor: HIRAYAMA SUSUMU
IPC: G09G3/30
Filed: 1985-01-29
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-S58133659-A (JP)
Title: Magnetic tape recorder and reproducer
Inventor: OKAMOTO CHIKAYUKI
IPC: H04N5/783
Filed: 1982-02-03
Abstract: PURPOSE:To uniform the adjusting region of a variable resistor to each double speed reproduction mode, by making the frequency dividing ratio of a circuit pulse signal having a frequency proportional to the number of revolutions of a capstan motor to attain a value siutable for a respective magnetic tape different from the tape speed at recording, to a resistance value set to a variable resistor. CONSTITUTION:A control circuit 14 starts its operation when a variable resistor 4 is adjusted, charges a capacitor 13 with an adjusted time constant for a time constant circuit, discharges the capacitor 13 instantly when the charged voltage reaches a preset threshold voltage, and generates a gate signal having a pulse width from the start of charge to the start of discharge. A preset value generating circuit 15 counts the number of clock pulses applied during the pulse width of the gate signal with a gate signal from the control circuit 14 and the clock pulse from an input terminal 16. A digital quantity corresponds to each double speed reproduction grouped to the number of the double speed reproduction to be selected, and a digital signal having a digital amount of a group corresponding to the counted number is generated from the circuit 15.
Patent JP-H03220724-A (JP)
Title: Semiconductor device
Inventor: YOSHIGAMI JIRO
IPC: H01L21/8242
Filed: 1990-01-26
Abstract: PURPOSE:To further miniaturize an element separation region by reducing the thickness of a gate's oxide film to 10nm and below. CONSTITUTION:An Si nitride film 103 is formed on a p-type Si substrate 101 by way of a thin Si oxide film 102. A second nitride film 104 after it is processed and an Si oxide film 105 are continuously deposited thereon and the oxide film 105 is dry-etched so that wet etching may be carried out with the Si nitride film, using the dry-etched film 105 as a mask. The Si nitride film 104 and the Si oxide film 105 are adapted to remain on the side wall of the Si nitride film 103. Then, after the oxide film 105 is removed, a thick oxide film 106 (field oxide film) is selectively formed. After the Si nitride films 103 and 104 are removed, the Si oxide film 102 is removed and a contamination layer on the surface of the Si substrate an then a gate oxide film 108, which is 10nm thick and below, is formed based on a thermal oxidation process. Furthermore, polycrystalline Si 109 is formed thereon. After the crystal is made to be conductive based on a diffusion process and then processed, an MOS capacitor is completed, which makes it possible to miniaturize the element separation region.
Patent JP-S60161978-A (JP)
Title: Preparation of thiophene compound
Inventor: ITOU NAOTO
IPC: C07D333/38
Filed: 1984-02-01
Abstract: PURPOSE:To obtain 2-amino-3-cyano-4-hydroxythiophene compound useful as an intermediate for dyes, etc., by reacting thioglycolic acid or an ester thereof with malononitrile in the presence of a basic compound. CONSTITUTION:A compound expressed by formula I (R is H or lower alkyl) is reacted with malononitrile in the presence of a basic compound, e.g. sodium ethylate, sodium methylate, sodium hydroxide or piperidine, to give a 2-amino- 3-cyano-4-hydroxythiophene compound. Alternatively, a compound expressed by formula II (X is Cl or Br) as a starting material may be reacted with sodium hydrosulfide to form the compound expressed by formula I in the reaction system, and the malononitrile is then added thereto to carry out the reaction in the same manner as described above. In both cases, the above-mentioned compounds are preferably reacted in water or a lower alcohol at -10-+20 deg.C.
Patent JP-H05178513-A (JP)
Title: Sheet delivery device
Inventor: NANJIYOU YOSHIHIRO
IPC: G03G15/00
Filed: 1992-01-30
Abstract: PURPOSE:To provide a sheet delivery device capable of pushing out a sheet toward a delivery side, even if the sheet is curled at the trailing end thereof, and ensuring the prevention of a sheet jam with simple constitution. CONSTITUTION:The roller shaft 16 of a delivery roller (feed roller positioned lower) 11 is fitted with a sheet pushing member 17 having arm sections 18a and 18b projected from the periphery of the roller 11, in such a way as freely slidable for rotation on a frictional force. In addition, the arm sections 18a and 18b of the member 17 are caused to push the trailing end of a sheet after passing a gap between the delivery roller 11 and a pinch roller 12, toward a delivery aperture.
Patent JP-H09209228-A (JP)
Title: Production of thick and thin yarn and device for drawing the same
Inventor: ABE TAKAO
IPC: D01F6/62
Filed: 1996-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a polyester thick and thin yarn by a direct spinning and drawing method (spinning, drawing and taking-up), capable of profitably producing the yarn suitable as a raw material for casual wears, capable of expressing a relatively plain, swollen and dry touch, and further to provide a method for producing the same. SOLUTION: This thick and thin yarn is produced by a direct spinning and drawing method comprising melting and spinning a polyester and subsequently continuously drawing the spun yarn between two or more godet rollers without once winding up the spun yarn. Therein, the yarn disposed between the godet rollers is heated with a heating plate having such a shape as nipping the yarn with the two surfaces of the plate at a temperature of (glass transition temperature -10 deg.C) to (glass transition temperature + 30 deg.C), and drawn in a drawing ratio of >=40% on the heating plate.