baber/WOPTO huggingface dataset:
Patent JP-H01243227-A (JP)
Title: Magnetic recording medium
Inventor: CHINO EIJI
IPC: G11B5/708
Filed: 1988-03-24
Abstract: PURPOSE:To lower the coefft. of friction and starting torque of the recording medium and to obtain the excellent durability thereof by incorporating specific fatty acid and binder into a magnetic layer. CONSTITUTION:The magnetic recording medium is formed by providing the magnetic layer contg. ferromagnetic powder, carbon black and the binder on a nonmagnetic base. The magnetic layer of such magnetic recording medium having such constitution contains the fatty acid of 12-20C and contains the binder having the binder index N satisfying 2.5<=N<=8.5. In the equation, N is N=(A/B)X10<3>, where A denotes the weight % of the binder in the magnetic layer and B denotes the sum of the value obtd. by multiplying the weight % of the ferromagnetic powder in the magnetic layer by the BET specific surface area (m<2>/g) of the ferromagnetic powder and the value obtd. by multiplying the weight % of the carbon black in the magnetic layer by the BET specific surface area (m<2>/g) of the carbon black. The magnetic recording medium having the lower coefft. of friction and starting torque and the excellent durability is thereby obtd.
Patent JP-S58188340-A (JP)
Title: Optical reproducer
Inventor: NONAKA CHIAKI
IPC: G11B21/08
Filed: 1982-04-28
Abstract: PURPOSE:To increase relative jumping width to an information recorder, by providing a driving voltage to a feeding motor for a period longer than a beam jump pulse given to a tracking device at the accessing to a desired reproducing position. CONSTITUTION:When a jump reference signal L is applied to a jump signal generating circuit 20, an acceleration pulse (a) and a deceleration pulse (b) are transmitted from the output and pulses C are synthesized via a synthesis circuit 34. When a step signal S is applied near an objective position, a narrow pulse C' is formed. The signals C, C' are given to a mirror transducer, and a feed motor driving system via a switch 40, which is turned off for the deceleration pulse (b). A drive signal (e) given to a feed motor 14 is attenuated rapidly, a driving signal being in a prescribed level or over is given, the pickup optical system is energized toward the jumping, and the beam is jumped remarkably at each step.
Patent JP-H07278031-A (JP)
Title: Production of nucleus-brominated isopropenylbenzene
Inventor: ISHIKAWA JUNICHI
IPC: C07C25/24
Filed: 1994-04-11
Abstract: PURPOSE:To efficiently obtain a nucleus-brominated isopropenylbenzene by carrying out hydrogen bromide addition reaction of free radical mechanism using isopropenylbenzene as a starting material to afford beta- bromoisopropylbenzene, brominating the nucleus of the brominated compound and subjecting the nucleus-brominated compound to dehydrobromination reaction. CONSTITUTION:Isopropenylbenzene of formula I is subjected to free radical addition reaction with hydrogen bromide in the presence of light or a peroxide to afford beta-bromoisopropylbenzene of formula II. Then, the beta- bromoisopropylbenzene of formula II is reacted with bromine using a metal halide as a catalyst so as to carry out bromination of nucleus to provide a nucleus-brominated beta-bromoisopropylbenzene of formula III. Then, dehydrobromination reaction is carried out in the presence of a base to provide the objective nucleus-brominated isopropenylbenzene of formula IV. According to this method, the objective compound can efficiently be produced in mild three processes comprising addition of hydrogen bromide, bromination of nucleus and elimination of hydrogen bromide by adding hydrogen bromide to isopropenylbenzene by free radical mechanism with light or peroxide. The compound is useful as a reaction type flame retardant, etc.
Patent JP-S52154032-A (JP)
Title: Electrolytic condenser-assist charge circuit
Inventor: HOSONO ISAMU
IPC: H02M1/16
Filed: 1976-06-17
Abstract: PURPOSE: To enable a starting operation of the power inverter made by a storage battery with AC power made capable of being fed to the load, by previously operating a charge from DC source side like a storage battery with the positive pole or both of the positive and the negative poles made open and closed. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-H09255497-A (JP)
Title: Production of indium antimony single crystal
Inventor: NAGATA SHINICHI
IPC: H01L21/208
Filed: 1996-03-27
Abstract: PROBLEM TO BE SOLVED: To obtain an indium antimony single crystal having low dislocation content in high yield without generating scum by using an atmospheric gas composed mainly of helium in a pulling method. SOLUTION: An indium antimony single crystal is produced by a pulling method using a pulling atmosphere composed mainly of helium. The dislocation content can be decreased without adding an impurity by changing the pull-up atmosphere gas from a conventional gas composed mainly of nitrogen (containing 10-20vol.% of hydrogen) to a gas composed mainly of helium (containing 10-20vol.% of hydrogen). The addition of impurity generates scum on the surface of the molten liquid to disturb the pull-up operation of the single crystal. The reason of the decrease in the dislocation content is because the use of the gas composed mainly of helium decreases the temperature gradient in the direction of pull-up axis to 2/3 of the gradient developed in the case of using nitrogen as a main component.  The presence of hydrogen at a volume ratio of 10-20% is effective for suppressing the oxidation of the surface of the single crystal.
Patent JP-H06287330-A (JP)
Title: Gas-barrier material
Inventor: NEGI TAICHI
IPC: C08J7/00
Filed: 1993-03-30
Abstract: PURPOSE:To obtain a gas-barrier material excellent in gas-barrier properties at high humidity, aroma-reserving properties, solvent resistance, and solvent permeation resistance by treating the surface of an ethylene-vinyl alcohol copolymer layer with a specific substance to give the layer a specified O2 permeability. CONSTITUTION:A gas-barrier material having an O2 permeability at a relative humidity of 90% or higher of 30cc.20mum/m<2>day.atm or lower is obtd. by treating the surface of an ethylene-vinyl alcohol copolymer layer having an ethylene content of 20-80mol% with a gaseous compd. such as a gaseous halogen compd. (e.g. C2 or F2) or a gaseous S compd.(e.g. SO3) or with a soln. of the gaseous compd. in a solvent such as a liq. aliph. polychlorohydrocarbon (e.g. CCl4.
Patent JP-S56167579-A (JP)
Title: Reducing device of hull resistance
Inventor: TAMURA KINYA
IPC: B63B1/40
Filed: 1980-05-29
Abstract: PURPOSE: To reduce the full resistance by fitting up a wave-killing body separated backward from the rear end of the stern for reducing the full resistance to a main hull with support arms between for preventing the fitting part of the wave-killing body to the main hull from generation of excessive stress.  
     CONSTITUTION: A wave-killing body 19 to reduce the full resistance is provided in the stern at a position separated backward from the rear end in the full load draft 10 of a main hull 1, and fitted up to the main hull 1 with support arms 17a and 17b between. Besides, a ballast water tank 16 can be arranged in the wave-killing body 19 for balancing the weight of the wave-killing body 19 against the buoyancy at a draft position other than the full load draft line 10. Since the fitting part is constructed by support arms 17a and 17b, this fitting part can be prevented from generation of excessive stress. 
     COPYRIGHT: (C)1981,JPO&Japio
Patent JP-S59199588-A (JP)
Inventor: USUI MASAYOSHI
IPC: C04B35/00
Filed: 1983-04-23
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-S58188195-A (JP)
Inventor: ISHIKURA SHIYOUICHI
IPC: H05K9/00
Filed: 1982-04-28
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-S60217023-A (JP)
Title: Method of manufacturing metal mold by electro-spark machining
Inventor: SAITOU NAGAO
IPC: B23H9/12
Filed: 1984-04-11
Abstract: PURPOSE:To permit low consumption working and quick working with electrode by constituting a second metal mold blank from a perforated metal body to provide a consumptive polar side electrode and a first metal mold blank as another polar side electrode. CONSTITUTION:A first metal mold blank 1 is secured fixedly in a box body 2 and spray grains 9 of blank 3 to be fused and injected are injected on the upper surface of said blank 1 to form about 3-5mm. thick fused-injected layer 12. Said layer 12 is exfoliated from the first metal mold blank 1. The first metal mold blank 1 and said layer 12 are connected respectively to the positive and negative electrodes in a working tank, and spindle feed and swing motion are applied to the first metal mold blank 1 for electrospark machining. By this constitution can be obtained low consumption working while quick working can be carried out by a single electrode.
Patent JP-S57187845-A (JP)
Title: Color crt
Inventor: SHIMADA KUNIO
IPC: H01J29/51
Filed: 1981-05-15
Abstract: PURPOSE:To obtain a color CRT provided with an electron beam converging mechanism capable of getting high positional precision in assembling individual electrodes. CONSTITUTION:A ring-like permanent magnet 8 magnetized to converge side beams is provided on the phosphor screen side from the lens electric field forming region of a target electrode 5 which is a final focusing and accelerating electrode with a high voltage applied to it, thereby electron beams can be deflected by the magnetic field formed by the permanent magnet 8, and individual electron beam passage holes 41a-41c, 51a-51c, 52a-52c of control electrodes 2, 3, a focus electrode 4, and a target electrode 5 corresponding to individual cathodes 1a-1c can be arranged coaxially. Accordingly, the positional precision in assembling individual electrodes and cathodes can be improved.
Patent JP-H11272135-A (JP)
Title: Image forming device
Inventor: WATANABE TAKESHI
IPC: G03G21/14
Filed: 1998-03-20
Abstract: PROBLEM TO BE SOLVED: To provide an image forming device constituted so that excellent cleaning performance corresponding to the damaged state of a transfer belt is achieved, the turning-over of a blade and the back staining of a paper are prevented from occurring extending over a long term and the service life of the transfer belt can be prolonged. SOLUTION: This copying machine 1 is provided with a photoreceptor drum 2 carrying a toner image obtained, based on an image signal. Then an exposure device 40 forming a linear image for supplying toner being as lubricant to the transfer belt 12 is disposed around the drum 2. The linear image is formed on the feeding surface of the belt 12 in the timing of the initializing action of the copying machine and in the timing of an interval between papers obtained when the prescribed number of papers is passed and scraped by the cleaning blade 19. Then the number of papers passed through the belt 12 is counted and the quantity of toner supplied as the linear image is adjusted so as to be gradually reduced in accordance with the increase of the number of passing papers.
Patent JP-S546742-A (JP)
Title: Encoding system
Inventor: EMORI TEIJI
IPC: G11B20/14
Filed: 1977-06-17
Abstract: PURPOSE: To enhance the relieving capacity for the burst-type error by inserting the m-bit flag bit into the center or before or after the n-bit binary signal. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H02250553-A (JP)
Title: Telephone system
Inventor: OSADA MASANORI
IPC: H04M3/42
Filed: 1989-03-24
Abstract: PURPOSE:To improve the efficiency of a telephone system by adding an exchange table to a switchboard to decide the telephone set of a receiving subscriber and to accurately connect a call to a due subscriber just by transmitting a personal code to the switchboard. CONSTITUTION:Many telephone sets 1 serving as terminals are connected to an exchange circuit network 3, and some of these sets 1 are concentrically connected to the network 3 via a switchboard 2. The switchboard connects selectively the call signals received from the network 3 to one of sets 1 and at the same time sends the dialing signals of the sets 1 to the network 3. Then an exchange table is added to the switchboard 2 to store the personal codes 1 for identifications of individuals and their corresponding telephone codes for identification of sets 1. When a personal code is inputted from a certain set 1, the exchange table is retrieved based on the personal code and the set 1 is connected to its corresponding set 1. Thus it is possible to save the time and the labor of a receiver subscriber and also to shorten the waiting time of an outgoing subscriber.
Patent JP-H06280381-A (JP)
Title: Heating and cooling system
Inventor: SHIYOUKO TOSHIHIRO
IPC: E04F19/04
Filed: 1993-03-30
Abstract: PURPOSE:To increase the heating and cooling efficiency by uniformalizing the room temperature in the upper and lower parts of a room, to effectively use the space in the room and to improve the interior. CONSTITUTION:A heating and cooling system includes at least either a hot air discharge port 31 formed by a skirting 30 of the interior for discharging hot air from the lower side of the interior 13 to the interior 13 or a cold air discharge port 33 formed by a verandah 32 running on more than two sides of a room of the interior 13 for discharging cold air from the upper side of the interior 13 to the interior 13. The skirting 30 or the verandah 32 running on more than two sides of a room is formed by resin material, metallic material, house timber, improved timber, bamboo material cork material or ceramics.
Patent JP-H05255488-A (JP)
Title: Process for synthesis of lactic acid polymer in solid state and product thus obtained
IPC: C08G63/08
Filed: 1992-02-21
Abstract: PURPOSE: To obtain a polymer efficiently which has a good biodegradability and is useful in a biomedical field, etc., by heating a specified low molecular weight lactic acid homopolymer etc., under specified conditions.  
     CONSTITUTION: Homopolymers or copolymers of L(+) and/or D(-) lactic acids which are in the form of powder or particles and have crystallinity higher than or equal to 10% measured by X-ray diffraction and a low molecular weight (preferably 500-10000) are heated at temperatures which are higher than the glass transition temperature of the polymer and lower than the melting temperature of the polymer in an inert atmosphere or under vacuum to obtain an intended polymer. 
     COPYRIGHT: (C)1993,JPO
Patent JP-H05234048-A (JP)
Title: Manufacture of thin film magnetic head
Inventor: YAMAGUCHI MASAO
IPC: G11B21/21
Filed: 1992-02-21
Abstract: PURPOSE:To make accuracy in microchamfering high by setting a thickness of a diamond grinding film and an average particle size of the fine diamond particles at desired valued. CONSTITUTION:The grinding film 92 is formed on a flexible film 922 by making an abrasive material layer 921 as a supporting body and the abrasive material layer 921 uses e.g. synthetic diamond grinding particles as the fine diamond particles. A coating material consisting of a binder resin such as a polyurethane resin, using a mixed solvent such as MEK/toluene/cyclohexanone as a diluent, is applied and is dried and the film is produced. At this time, a thickness of the abrasive material layer 921 in which fine diamond particles are incorporated is made to <=15mum, preferably to 1-10mum. Also the average particle size of the fine diamond particles is made to <=1.0mum, preferably to 0.1-0.5mum. Thus the microchamfering can be carried out with excellent accuracy and the variation due to a chamfering method or the angle is eliminated and the durability is improved.
Patent JP-S58190782-A (JP)
Title: Arc resistibility tester
Inventor: SUZUKI TOSHIO
IPC: G01R31/12
Filed: 1982-05-01
Abstract: PURPOSE:To achieve an efficient arc resistibility testing with an easier change of samples and replacement of gas by automatic control of supply or stoppage in the supply system depending on the oxygen concentration in a test box. CONSTITUTION:When the replacement of air with other gas in a test box 1 is detected with an oxygen densitometer 7, an electromagnetic valve 11 is closed by a command of a gas controller 14. The control condition of the electromagnetic valve is transmitted to a power source 6 through the gas controller 14 to start an arc resistibility testing and a voltage is applied to an electrode 5. Upon the end of the arc resistibility testing, the same operation as at the start thereof is automatically performed. In this case, an electromagnetic valve 10 is opened to supply air. When the oxygen concentration in the test box 1 indicates normal partial pressure of air, the condition is transmitted to the power source 6 through the gas controller 14 to direct the end of the testing.
Patent JP-S61231166-A (JP)
Title: Composite ultrahigh vacuum apparatus
Inventor: KETSUSAKO MITSUNORI
IPC: C23F1/08
Filed: 1985-04-08
Abstract: PURPOSE:To operate and conserve each treating chamber independently, by forming ultrahigh vacuum treating apparatus with the first and second treating chambers and a load lock chamber and connecting the first and second ultrahigh vacuum treating chambers with two valves and intermediate vacuum vessel. CONSTITUTION:Ultrahigh vacuum apparatus for operations such as vapor deposition, film piling, etching is composed of the first and second treating chambers 41 and 42 and the load lock chamber 43. The chambers 41, 42 are connected with a small vacuum chamber 45 providing valves 44, 44' at both ends. Material to be treated is moved from the chamber 43 to the chambers 42, 41 in order, and subjected to operation such as vapor deposition. In this case, since the chambers 41, 42 are formed with respective different systems 46, 47, repair of both treating chambers and ultrahigh vacuum treatment by burning exhausting together with heating thereafter can be carried out independently. Consequently, operation and conservation of the ultrahigh vacuum treating apparatus are easy, and the operability is improved remarkably.
Patent JP-H07250907-A (JP)
Title: Magnetic cushion sheet
Inventor: MASUDA ISAMU
IPC: A61N2/08
Filed: 1994-03-16
Abstract: PURPOSE:To effectively act magnetic lines of force on a human body by increasing the bonding force between a cushion material and permanent magnets and bringing these permanent magnets in proximity to the human body at the time of acting load on this material. CONSTITUTION:The respective projecting parts 7 of the cushion material 5 are subjected to a hardening treatment at their peak parts. The permanent magnets 6 are fitted into the positions lower than the hardening treated parts 10 in the recessed parts 8 of the cushion material 5 and are adhered to the soft material parts. The respective projecting parts 7 are formed to a pyramidal shape and the recessed parts 8 enclosed by the projecting parts 7 on the four sides are formed to a square shape at the opening plane. The respective permanent magnets 6 are formed to a disk shape and are formed to the diameter larger than the length on one side of the opening plane of the recessed parts 8 in the positions where these magnets are installed. The outer peripheral parts of the permanent magnets 6 eventually bite into the soft parts 11 on the four sides when the permanent magnets 6 are fitted into the recessed parts 8.
Patent JP-H04309850-A (JP)
Title: Inspection of defective of glass cylindrical body
Inventor: MATSUSHIMA MITSUHIRO
IPC: G01N21/88
Filed: 1991-04-05
Abstract: PURPOSE:To detect the defective such as the crack and cut which exist in a transparent glass cylindrical body. CONSTITUTION:Light is irradiated to the side surface at one edge part of a transparent glass cylindrical body 1, and the light which transmits through the inside of the wall of the glass cylindrical body and radiates from the surface of the opened port at the other edge of the glass cylindrical body is taken photograph by a CCD camera 6, and the photographed image is binary- converted, and the good or defective of the glass cylindrical body is judged from the magnitude of the defective image which appears in the image region corresponding to the dark part of the glass cylinder body where light does not radiate. Accordingly, visual inspection can be made automatic, and the reduction of inspection cost and the prevention for the supply of the defective articles can be achieved effectively.
Patent JP-S58190192-A (JP)
Title: Wireless remote control device
Inventor: MORISHITA TATSUO
IPC: H04N5/00
Filed: 1982-04-30
Abstract: PURPOSE:To eliminate an operation mistake, by providing a function to confirm whether or not a normal remote control is possible. CONSTITUTION:A transmission system 21 produces a prescribed instruction signal through an instruction keyboard 22, and at the same time a reception system 25 produces through a test key part 22a a signal to confirm whether or not the normal reception is possible for the instruction signal given from the system 21. Both the instruction signal and the confirming signal are transmitted from a transmitting circuit 24 via a modulating circuit 23 in the form of a signal having a proper code bit respectively. The system 25 receives both instruction and confirming signals from the system 21 through a receiving circuit 26 and allots these signals to a confirming signal recognizer 28 and a device 29 to be controlled via a demodulating circuit 27. The recognizer 28 discriminates whether or not the confirming signal is correctly received and demodulated as a proper bit code. When this reception and demodulation is decided normal, it is decided that the instruction signal can also be received in a normal way.
Patent JP-H02250292-A (JP)
Title: Electroluminescence element
Inventor: SAITO SHOGO
IPC: H05B33/12
Filed: 1989-03-23
Abstract: PURPOSE:To accomplish an EL element equipped with high brightness and durability, which can be manufactured in simple processes, by using a light emitting layer in the form of a laminate film consisting of organic compound, having pos. hole transport ability and light emitting function, and organic compound having electron transport ability, or otherwise in the form of mixture film of these two. CONSTITUTION:A light emitting layer to be provided between two electrodes 2, 4 is constructed in the form of a laminate film consisting of organic compound layer 3a, having pos. hole transport ability and light emitting function, and organic compound layer 3b having electron transport ability, or otherwise in the form of mixture film 3c of these two. Use of these kinds of substances enables light emission from substantially all organic compounds having pos. transport ability and light emitting function with the energy levels of the pos. hole transport layer and electron transport layer taken into considerations. This achieves an EL element equipped with high brightness and durability, which can also be manufactured in simple processes.
Patent JP-H02251117-A (JP)
Title: Manufacture of resin bonded type magnet
Inventor: SAKATA MASAAKI
IPC: H01F41/02
Filed: 1989-03-24
Abstract: PURPOSE:To manufacture a resin bonded type magnet with excellent productivity by cutting a molded body which is pushed out of a metal mold with a high- speed water stream. CONSTITUTION:A magnet composition which is injected into a metal mold 105 is molded when the composition passes through the metal mold 105. When an anisotropic magnet is molded, a magnetic field is applied into the metal mold in molding. When a raw material compound 113 passes through the metal mold, the axes of easy magnetization of the magnetic powder in the compound 113 are aligned in the direction of the magnetic field, and the molding is performed. The pushed out molded product is cut into a specified length with a high-speed water stream 111 jetted from a nozzle 110. The nozzle 110 is moved in synchronization with the pushing-out speed of the molded product. In this way, the resin bonded type magnet characterized by the high magnetic performance can be manufactured safely.