baber/WOPTO huggingface dataset:
Patent JP-S61249641-A (JP)
Title: Cold forging method for piston
Inventor: SHIKI MASAMI
IPC: B21K1/18
Filed: 1985-04-27
Abstract: PURPOSE:To maintain the height of the caulking wall of a spherical seat at desired dimensional accuracy by determining the relation between the height size of said caulking wall and the weight of stock in accordance with the prescribed equation in the stage of forming successively the stock from a slug to a piston by cold forging. CONSTITUTION:The stock 1 is successively formed from the slug 2 to the piston 4 by cold forging. The relation between the height size H2(mm) of the caulking wall 6 around the spherical seat 5 and the weight W(g) of the stock 1 is determined in accordance with the experimental equation H2=K+0.55W (K: constant). The height size of the caulking wall around the spherical seat to be formed to the piston is thus obtd. with the desired accuracy.
Patent JP-2000286400-A (JP)
Title: Semiconductor integrated circuit device and its manufacture
Inventor: OWADA FUKUO
IPC: H01L29/792
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To reduce write errors in continuous long time reading by forming a control gate electrode on a drain diffusion layer and a source diffusion layer formed on a semiconductor substrate with a gate insulating film in between and forming a variable resistor element between it and the source diffusion layer. SOLUTION: A p-type well 1 is formed on a semiconductor substrate and elements are isolated by means of a trench element isolation insulating film 2. Drain and source diffusion layers 9 are formed in the p-type well 1 and a tunnel region diffusion layer 6 is formed at one end of the drain and source diffusion layers 9, respectively. A gate insulating film 3 is formed on the tunnel region diffusion layer 6 of the drain and source, and a control gate electrode 4 is formed on the layer 3. A tunnel insulating film 7 and a sidewall floating gate electrode 8 with the tunnel insulating film 7 in between are formed on the gate electrode 4 on the side of the tunnel region diffusion layer 6 of the source. A protective insulating film 5 for protecting the gate electrode 4 is formed and an element protective insulating film 10 and wiring 11 are formed on these films and connected through holes.
Patent JP-S63256076-A (JP)
Title: Video signal reproducing circuit
Inventor: YASUMURA HIROTO
IPC: H04N5/93
Filed: 1987-04-13
Abstract: PURPOSE:To simplify the constitution of the titled device by eliminating noise selectively by one and same noise eliminating means from a video signal outputted from an image pickup means and a video signal outputted by a reproducing means in a camera incorporating type VTR or the like. CONSTITUTION:In giving a command of the recording operation to an operation section 11 at the recording, a recording mode signal is outputted from a system controller 12, then changeover switches 8, 10, 21 are turned to the position R and an output of a recording switch 8 is fed to a noise elimination circuit 9. Thus, noise elimination processing by a noise elimination circuit 9 is applied to the video signal obtained from an image pickup element 4. At the reproduction, the reproducing operation is commanded in the operating section 11 and a reproducing mode signal is outputted from the system controller 12, then the changeover switches 8, 10 and 21 are turned to the position P and an output of a changeover switch 30 is connected to a frequency multiplex circuit 34 via the noise eliminating circuit 9 and the changeover switch 10. Thus, the noise eliminating processing by the noise eliminating circuit 9 is applied in reproducing the video signal from a magnetic tape 24.
Patent JP-H03290384-A (JP)
Title: Covered ceramic sintered material having excellent adhesion
Inventor: KATSUMURA YUJI
IPC: C04B41/90
Filed: 1990-04-06
Abstract: PURPOSE:To obtain the subject sintered material having improved adhesiveness between a base material and a covered film, resistance to releasing of the covered film, resistance to plastic deformation and resistance to welding by inserting an inner layer of metal between the base material of non-oxide-based ceramic sintered material and an outer layer of a hard metal compound. CONSTITUTION:An inner layer and an outer layer are formed on at least a face of a base material composed of Si3N4 or SiC in a following method to form a non-oxide-based ceramic sintered material. Namely, a single layer composed of at least a species of Ti, Zr or Hf metal or mutual alloy of said metals is formed in a thickness of <=0.5mum as an inner layer. On the other hand, at least a species of carbide, nitride, carbonate or nitrate, etc., of Ti, Zr or Hf and mutual solid solution of said compounds is formed in a thickness of <=1.5mum as an outer layer. Besides, total thickness of the inner layer and the outer layer is preferably <=3mum. Releasing of the covered film is scarcely generated and also fine chipping of the base material owing to releasing of the film is scarcely generated in the resultant covered ceramic sintered material, then wear resistance of the sintered material is able to be increased.
Patent JP-S58209019-A (JP)
Inventor: INOUE YUKIHIRO
IPC: H01H13/712
Filed: 1982-05-28
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-H06280058-A (JP)
Title: Device for generating ion plasma excited by electron beam
Inventor: HARA TAMIO
IPC: H01J37/08
Filed: 1993-03-29
Abstract: PURPOSE:To adjust the plasma distribution in the ion forming region of the device for generating the ion plasma excited by electron beams so as to uniformalize the distribution over a wide area. CONSTITUTION:The plasma 19' in the ion forming region 10 is adjusted to the uniformly distributed state over the large area in the transverse direction and also to the distributed density as uniform as possible in, the longitudinal direction, thereby, the adequate construction and arrangement of multipole magnets 16', 16'' are enabled, magnetic fields are thus put into an optimum forming state so that the back multipoles 20' are omitted, and a reverse magnetic field coil 17' is made freely movable in the longitudinal direction, and in addition, the incidence of the electron beams are made plural by disposing electron beam sources in plural positions. The high-density plasma is formed uniformly in the large area in the ion forming region 10 more efficiently than heretofore. Fine dry etching as designed is executed at a high speed with high accuracy in the state of maintaining a high selection ratio of a target sample 14 to a mask material and a substrate material to be etched.
Patent JP-S60237830-A (JP)
Title: Generator with eccentric vacuum pump
Inventor: YAMAMURO KAZUHIKO
IPC: F16C33/72
Filed: 1984-05-08
Abstract: PURPOSE:To prevent a seal face from being abnormally abraded or damaged, by a method wherein the diameter of the section for inserting the oil seal for the rotary shaft on a vacuum pump side is made larger and the thrust-directional position is determined by the stepped section. CONSTITUTION:An eccentric vacuum pump 1 and a generator 2 are connected to rotary shafts 8, 12 of the same axis driven in common, and the diameter of the section 8e confronting to the oil seal 10 of the rotary shaft 8 on the vacuum pump 1 side is made larger than the diameter of an oil control section 8d or a spline section 8c. The thrust-directional position of a shaft bearing 9 is determined by the stepped section 8f of the larger diameter section 8e. As a result, smudged oil is not fed to the oil seal 10, thereby the oil seal 10 is prevented from being abraded and the length in the shaft direction can be shortened.
Patent JP-S61252919-A (JP)
Title: Tripod type synchronous joint
Inventor: MIZUKOSHI YASUMASA
IPC: F16D3/205
Filed: 1985-05-01
Abstract: PURPOSE:To prevent the occurrence of resonance in a car body, by attaching an aligning member relatively rotatably to a housing, while reducing the occurrence of a component of force in an axial direction of a joint. CONSTITUTION:Relative motions in both axial and angular directions of a housing H2 and a shaft S2 are made performable in a wat that a cylindrical roller R2 rolls on a plane P of an aligning member T. In addition, torque transmission at the time of rotation is also made performable between the cylindrical roller R2 and a concave track 11 via the aligning member T. And, this member T slides along a cylindrical surface r1 and smoothly follows on a tilt of a trunnion 12, namely, a tilt of the cylindrical roller R2. Therefore, a contact line between the cylindrical roller R2 and the aligning member T is always accorded with a bus of the cylindrical roller R2 whereby the occurrence of a component of force in the axial direction of a joint is reduced, thus resonance in a car body is prevented from occurring.
Patent JP-H05263157-A (JP)
Title: Filter, filter unit and wedge
IPC: B22D43/00
Filed: 1992-03-18
Abstract: PURPOSE:To suppress the generation of dross and to easily scrape out the dross in a molten metal filter. CONSTITUTION:A filtration chamber 2 having the molten metal inlet 3 and outlet 4, a filter unit 5 placed in the chamber 2 and a wedge 10 to press the unit 5 on the side wall 9 of the chamber 2 on the outlet side are provided. The molten metal surface in a molten metal inlet passage 14 extending from the inlet 3 to the chamber 2 is made flush with that in the chamber 2, and the bottom surface 15 of the passage 14 is made flush with or slightly higher than the upper end of the wedge 10 and the upper end of an end plate 6 of the unit 5 on the inlet side. The upper end of the wedge 10 is made almost flush with the upper end of the end plate 6. A through-hole for engaging a jig is formed at the upper part of the wedge 10. A notch is formed in the overlap between the end plate 6 on the inlet side and the wedge 10 to expose the through-hole 19.
Patent JP-S60236337-A (JP)
Title: Data communication method
Inventor: KANEKO KUNIYA
IPC: H04L1/00
Filed: 1984-05-09
Abstract: PURPOSE:To shorten a communication time as less as possible by transmitting again the data sent to a receiver from a transmitter in case an invalid answer or no answer is given to said data from the receiver within the set reference time. CONSTITUTION:A signal ENQ is sent to a receiver R from a transmitter S to set up a data link, and the data link is set up when the answer reception ACK is given from the receiver R. In case a negative answer NAK is produced due to the noise, etc. of communication, the transmission of the ENQ is repeated up to the set (i) times. Then the answers NAK are outputted continuously to the (i+ 1)th transmission. In such a case, a system fault is decided and the communication is discontinued. While the ENQ is transmitted repetitively until the answer ACK is delivered within the prescribed reference time in case an invalid answer or a negative answer is outputted to the ENQ. When no valid answer nor no other answer is outputted even after the reference time is over, a system fault is decided to discontinue the transmission. In such a way, a data link is set up also in case an invalid answer or no answer is supplied during transmission of other data.
Patent JP-H06277434-A (JP)
Title: Separation of oxygen gas
Inventor: HAYATA EIJI
IPC: C01B13/02
Filed: 1993-03-26
Abstract: PURPOSE:To enable oxygen gas to be separated efficiently by performing four steps such as adsorption, exhaust, recovery, and adsorption of cleaned exhaust gas on one hand, and four steps such as adsorption, exhaust, cleaning and recovery on the other hand sequentially and repeatedly, in a dual adsorption tower filled with a molecular sieve carbon. CONSTITUTION:Two adsorption towers 3, 3a with an inner volume ratio of 1:1 to 3:1 are filled with molecular sieve carbon to perform a pressure swing adsorption method. In this case, four steps such as adsorption, exhaust, recovery and the adsorption of cleaned exhaust gas are performed as a series of operations at an adsorption tower 3 of the primary side, and four steps such as adsorption, exhaust, cleaning and recovery likewise as a series of operations at an adsorption tower 3a. These operations are repeated in a sequential interlocked fashion. The gas discharged from the adsorption tower 3a which is in a cleaning process is introduced from one end of the adsorption tower 3 which is through with a recovery process and is allowed to be adsorbed into the adsorption tower. Thus it is possible to obtain oxygen gas of high concentration.
Patent JP-S5317224-A (JP)
Title: Projection device of solid colour image
Inventor: TSUDA ISAMU
IPC: G02F1/19
Filed: 1976-07-31
Abstract: PURPOSE: To obtain the picture image of colour TV of low power consumption and good quality, by receiving the image signal by the semi-conductor element array and the electronic circuit, strong in each sampling element and projecting on the screen from the surface of the reflection layer. 
     COPYRIGHT: (C)1978,JPO&Japio
Patent JP-H11292804-A (JP)
Title: Oxychlorination reaction of ethylene
Inventor: MATSUSHITA TATSUKI
IPC: C07C17/156
Filed: 1998-04-06
Abstract: PROBLEM TO BE SOLVED: To economically and advantageously produce 1,2-dichloroethylene by suppressing the adhesion or aggregation of a catalyst, reducing the combustion of ethylene which is an unfavorable side reaction and improving the unit requirement of the ethylene in an oxychlorination reaction of ethylene in a fluidized bed. SOLUTION: Highly active catalyst particles containing copper(II) chloride which is a catalyst supported in an amount of 5-15 wt.% based on a carrier are mixed with low active catalyst particles containing the supported copper(II) chloride in an amount of 0.1-3 wt.% based on the carrier for use in a fluidized bed type oxychlorination of ethylene. In this case, the carrier supporting the copper(II) chloride is γ-alumina and the surface area thereof is 160-500 m<2> /g.
Patent JP-H08319178-A (JP)
Title: Porous ceramics
Inventor: OSAKA SHIGEMI
IPC: B22C9/06
Filed: 1996-03-25
Abstract: PURPOSE: To obtain an excellent mechanical strength by heating an aqueous solution of a zirconium salt in the presence of urea and then baking the resultant slurry consisting essentially of a transparent ZrO2 sol and refractory fine particles. CONSTITUTION: The ceramics are obtained by mixing an aqueous solution of a zirconium salt such as zirconium nitrate at a prescribed concentration with urea in a molar amount of about 0.2-4 times based on the zirconium salt and water, heating the resultant mixture at about 60-300 deg.C, producing a transparent ZrO2 sol, concentrating the resultant sol through an ultrafiltration membrane, further heating the prepared concentrate at about <=80 deg.C, preparing a transparent ZrO2 sol at about pH 0.1-6 having about 5-3000cP viscosity, then adding a chelating agent such as acetylacetone and refractory fine particles having about 200-400 mesh particle size such as a calcia-partially-stabilized ZrO2 to the sol and affording a slurry, dipping a casting model in the prepared slurry, forming a slurry layer, sprinkling and supporting refractory fine grains thereon,  subsequently removing the casting model, baking the obtained green mold at about 800-1600 deg.C and providing a mold for casting Ti.
Patent JP-H01263675-A (JP)
Title: Image forming device
Inventor: WATANABE JUNJI
IPC: G03G21/00
Filed: 1988-04-15
Abstract: PURPOSE:To surely write information by narrowing an information writing part, where a shutter means narrower than a writing means of width below a maximum image forming range on an image carrier shields light made incident on the image carrier, rather than the shutter. CONSTITUTION:A writing unit 71 of width smaller than half of the maximum copying width of a photosensitive drum 10 is provided close to the drum 10, and writes information such as required characters as well as an original image. The full length A of an LED array 71b in the unit 71 is longer by delta in both lateral directions than the width B of the shutter 71f. When the width B is equal to or less than the length A, the shutter 71f shields incident light Bi to lengthen the width of electrical charges remaining on the drum 10 rather than the A. Therefore, the array 71b cannot remove the electric charges, and when development is made, black lines corresponding to both sides of the array 71b remain. However, the length A is longer than the width B, and a part corresponding to a character is lit in the LED 71c, with the width C of the character narrower than the width B. In the part going off within the width C in the LED 71c, the electric charges of the drum 10 exist, from which the character turns into a visible image by development.
Patent JP-S59218631-A (JP)
Title: Magnetic recording medium
Inventor: TAKEUCHI SETSU
IPC: G11B5/712
Filed: 1983-05-26
Abstract: PURPOSE:To obtain a coated film layer having excellent durability and surface smoothness by incorporating the magnetic powder coated with the resultant product of reaction between a specific compd. having an isocyanate group and 1 or >=2 kinds of compds. selected from a specific compd. group having a func tional group that can react with the isocyanate group. CONSTITUTION:A magnetic recording medium contg. the magnetic powder coated with the resultant product of reaction between 1 or >=2 kinds of isocyanate compds. selected from the group consisting of a polyisocyanate group of 100- 1000mol.wt. having 2 or >=3 isocyanate groups in one molecule, and an isocyanate compd. of 140-1500mol.wt. having a hydrolyzable alkoxysilane group and 1 or>=2 isocyanate groups in one molecule and 1 or >=2 kinds of compds. selected from the group consisting of the alkyl phenol or the deriv. thereof expressed by the formula I , the bisphenol A or the deriv. thereof expressed by the formula II, the alkylphosphoric amide expressed by the formula III, the 1st amine deriv. expressed by the formula VI and the 2nd amine deriv. expressed by the formula V.
Patent JP-S59212457-A (JP)
Title: Novel compound useful for detecting ion and manufacture
Inventor: SUTEIIBUN SHII CHIYAARUTON
IPC: G01N33/84
Filed: 1984-05-11
Abstract: A novel compound is disclosed having the structurein which R is lower alkyl and X is halogen or pseudohalogen. Also disclosed is a novel process for preparing the compound which comprises the steps of combining a compound having the structurein which X is a halogen or pseudohalogen, and a compound havina the structurein which R is lower alkyl and A is lower alkylidene to produce a first reaction mixture; adjusting the pH of the first reaction mixture to at least about 8 to produce a second reaction mixture; and recovering the compound or its salt from the second reaction mixture.
Patent JP-2000286732-A (JP)
Title: Broadcast signal receiver
Inventor: OYAGI KAZUHIRO
IPC: H04B1/16
Filed: 1999-03-31
Abstract: PROBLEM TO BE SOLVED: To reduce inconvenience caused by a presumable level difference between digital and analog broadcast reproduction audio signals that are respectively obtained from digital and analog audio broadcast signal reception sections and denote the same information. SOLUTION: The broadcast signal receiver is provided with a digital audio broadcast signal reception section 12, an analog audio broadcast signal reception section 14, a switch 17 that extracts both a digital broadcast reproduction audio signal and an analog broadcast reproduction audio signal, a level difference detection sections 16, 18, 19 that obtain a level difference output signal in response to a level difference between a level of the digital broadcast reproduction audio signal and a level of the analog broadcast reproduction audio signal,  and a level adjustment section 25 that takes either of a state of level adjustment in response to the level difference output signal as to the analog broadcast reproduction audio signal obtained from the switch 17 and a state of level adjustment in response to the level difference output signal as to the digital broadcast reproduction audio signal obtained from the switch 17.
Patent JP-S63262421-A (JP)
Title: Method for reducing iron loss in grain-oriented silicon steel sheet
Inventor: FUKUDA BUNJIRO
IPC: C21D9/46
Filed: 1987-04-17
Abstract: PURPOSE:To remarkably reduce the iron loss of a silicon steel sheet, by radiating a plasma flame in a specific direction at the time of reducing iron loss by radiating a plasma flame to the surface of a grain-oriented silicon steel sheet for use in a transformer, etc. CONSTITUTION:A silicon steel sheet used as an iron core for a transformer and other electric apparatus is finish-annealed and then subjected to insulation coating, to which a plasma flame is radiated in a direction perpendicular to the rolling direction by using an Ar gas. At this time, the plasma flame is radiated at intervals of (l)mm represented by 22-2.5D<=l;<=36-2.5D when the average secondary recrystallized grain size of the silicon steel sheet is Dmm. By the above plasma flame radiation treatment, the iron loss of the silicon steel sheet is drastically reduced, and electric energy loss in a transformer, etc., prepared by using this steel sheet can be reduced.
Patent JP-S62252413-A (JP)
Title: Deodorizing urethane foam
Inventor: AKAHO MASAYUKI
IPC: A61L9/00
Filed: 1986-04-24
Abstract: PURPOSE:To obtain a urethane foam excellent in a deodorizing performance and suitable as an air filter or the like, by foaming a specified prepolymer having an isocyanate group on a molecular terminal by reaction with water in the presence of a ferric salt-ascorbic acid deodorant. CONSTITUTION:A polyether polyol of an ethylene oxide unit content >=20wt% is produced by, for example, a method comprising addition-polymerizing a polyalcohol such as ethylene glycol or glycerol with ethylene oxide or propylene oxide. This polyether polyol is reacted with an organic isocyanate (e.g., tolylene diisocyanate) to produce a prepolymer having an isocyanate group on a molecular terminal. This prepolymer is foamed by reaction with water in the presence of a ferric salt-ascorbic acid deodorant to obtain the purpose deodorizing urethane foam.
Patent JP-H01268815-A (JP)
Title: Vacuum degassing treatment of molten steel
Inventor: TAKAHASHI KIYOSHI
IPC: C21C7/10
Filed: 1988-04-18
Abstract: PURPOSE:To increase the purity of steel and to reduce the amt. of a material having an undesirable compsn. by separately controlling the blowing pressures of systems for blowing reflux gas into upper and lower gas feeding nozzles fitted to a riser. CONSTITUTION:Plural gas feeding nozzles 8 are fitted to a riser 2a. The moment that vacuum degassing treatment is started the blowing pressures of systems 8a', 8b' for blowing reflux gas into the upper and lower gas feeding nozzles 8a, 8b are separately controlled. For example, the pressure of reflux gas blown into the upper nozzle 8a is made lower and that blown into the lower nozzle 8b is made higher. The purity of steel is increased and the amt. of a material having the undesirable compsn. can be reduced.
Patent JP-S5427730-A (JP)
Title: Display unut on repetitive scanning system
Inventor: TAKAHASHI KENICHI
IPC: G09G5/08
Filed: 1977-08-03
Abstract: PURPOSE: To enable a superimposed display of display data stored in a refresh memory and an any number of various symbols on a screen without adding special hardware. 
     COPYRIGHT: (C)1979,JPO&Japio