Patents by Inventor Yoshio Yoshioka
Yoshio Yoshioka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5260728Abstract: A light beam (30) including a random polarization and radiated from a light source, such as laser oscillator (6) is separated into P wave polarization light beam and S wave polarization light beam by a beam splitter 33. After modulated by image information representative of characters to be printed, both the P and S wave polarization beams are merged and the resultant light beam is projected on the surface of a workpiece for marking a pattern.Type: GrantFiled: June 12, 1991Date of Patent: November 9, 1993Assignee: Hitachi, Ltd.Inventors: Yoshio Yoshioka, Kouji Kuwabara, Makoto Yano, Kiyoshi Saito, Kiyoshi Okumura, Minoru Fujimoto
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Patent number: 4841431Abstract: A transfer machine comprising a conveyor for conveying workpieces to stations and numerically controlled machine tools disposed at their respective stations. These machine tools are controlled by sequence controllers, which are connected with their respective numerical controllers. All the programs for machining operations are stored in each numerical controller. When some station is in trouble, the normal machine tool disposed at a station adjacent to the station in trouble is caused to execute the program originally assigned to the station in trouble, as well as the program assigned to the normal station itself.Type: GrantFiled: July 10, 1987Date of Patent: June 20, 1989Assignees: Toyoda Koki Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Masayoshi Takagi, Yoshio Yoshioka, Tetsuo Matsuzaki, Shuhei Noro, Syouji Ikawa, Katutoshi Naruse
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Patent number: 4667072Abstract: A protrusion is formed downstream of the throat of an insulating nozzle of a gas-insulated circuit breaker of puffer type. Quenching gas, after collision with the protrusion, is blown against an arc generated between a fixed arcing contact and a moving arcing contact in the opening process of the gas-insulated circuit breaker. As a result, a pressure drop at or near the forward end (Q) of the fixed arcing contact can be prevented thereby to improve the insulation strength in the opening process.Type: GrantFiled: August 14, 1984Date of Patent: May 19, 1987Assignee: Hitachi, Ltd.Inventors: Fumihiro Endo, Shigeo Kobayashi, Yoshio Yoshioka
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Patent number: 4588660Abstract: A fuel cell made up of a pile of unit cells, each consisting of a pair of cell element and separator packed in a cell frame, in which there are formed a fuel feed path and oxide product evacuation path in the piling direction. The cell frame is provided between its inner edge offsets and the outer edges of the cell element and separator with inner packings, and further provided near its outer edge on one side with an outer packing. The sealing structure perfectly prevents a fuel leak, and yet allows compactness and easy assembling process.Type: GrantFiled: March 22, 1985Date of Patent: May 13, 1986Assignee: Hitachi, Ltd.Inventors: Toshio Shimizu, Takanori Satoo, Ryota Doi, Motoo Yamaguchi, Tsutomu Tsukui, Yoshio Yoshioka
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Patent number: 4578730Abstract: There is disclosed a high-voltage DC circuit breaker apparatus with reverse current insertion system by line voltage charge, which comprises a commutation switch, a series circuit of a capacitor, a reactor and a switch connected in parallel with the commutation switch, a resistor connected so as to charge the capacitor by a line voltage. The charging time constant of the capacitor determined by the capacity of the capacitor and the resistor is used as a reference in a manner so that the rise time constant of the line voltage is smaller than the charging time constant of the capacitor, and the rise time constant of the line current is larger than the charging time constant of the capacitor, thereby interrupting the fault current without fail.Type: GrantFiled: October 12, 1983Date of Patent: March 25, 1986Assignee: Hitachi, Ltd.Inventors: Shunji Tokuyama, Kooji Suzuki, Kunio Hirasawa, Yoshio Yoshioka, Keiji Arimatsu
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Patent number: 4565865Abstract: New carbamic acid esters, inclusive of salts thereof, which have the formula: ##STR1## wherein n is zero or 1; R.sup.1 and R.sup.2 independently represent --H, --OCH.sub.3 or --OCONHR.sup.6 in which R.sup.6 is C.sub.8-26 aliphatic hydrocarbon residue provided that at least one of R.sup.1 and R.sup.2 is --OCONHR.sup.6 ; and R.sup.3, R.sup.4 and R.sup.5 independently represent hydrogen or lower alkyl, or ##STR2## represents cyclic ammonio, exhibit inhibitory activity to multiplication of tumor cells and antimicrobial activity.Type: GrantFiled: July 14, 1983Date of Patent: January 21, 1986Assignee: Takeda Chemical Industries, Ltd.Inventors: Motoo Hozumi, Hiroaki Nomura, Yoshio Yoshioka
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Patent number: 4562322Abstract: A SF.sub.6 gas insulating electric apparatus usable as a circuit breaker, etc., containing a SF.sub.6 gas insulator and a resin insulator, both of which insulators are present in an atmosphere to be exposed to arcs, characterized by making at least the surface portion to be exposed to arcs of the resin insulator from a polymer containing nitrogen atoms or a polyolefin resin, and if necessary together with an inorganic filler powder, is excellent in both surface and inner arc resistance and can maintain breaking performance for a long period of time.Type: GrantFiled: December 18, 1984Date of Patent: December 31, 1985Assignee: Hitachi, Ltd.Inventors: Motoo Yamaguchi, Isamu Sone, Kunio Hirasawa, Yoshio Yoshioka, Akio Nishikawa, Hiroshi Suzuki, Mikio Sato, Masao Hosokawa
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Patent number: 4551532Abstract: New ethylene glycol derivatives, inclusive of salts thereof, which have the formula: ##STR1## wherein n is an integer of 1 to 15; R.sup.1 is an aliphatic hydrocarbon group containing 6 to 26 carbon atoms; R.sup.2, R.sup.3 and R.sup.4 are independently H or lower alkyl, or ##STR2## represents a cyclic ammonio group, exhibit inhibitory activity to multiplication of tumor cells and antimicrobial activity.Type: GrantFiled: April 27, 1981Date of Patent: November 5, 1985Assignee: Takeda Chemical Industries, Ltd.Inventors: Motoo Hozumi, Hiroaki Nomura, Yoshio Yoshioka
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Patent number: 4544512Abstract: Tridecyloxy- or tetradecyloxy-propane derivatives of the formula: ##STR1## wherein R.sup.1 is tridecyl or tetradecyl, R.sup.2 is hydrogen or --OCH.sub.3, and R.sup.3, R.sup.4 and R.sup.5 independently represent hydrogen or C.sub.1-3 alkyl, or ##STR2## represents cyclic ammonio, and their salts, have inhibitory activity to multiplication of tumor cells and antimicrobial activity.Type: GrantFiled: December 9, 1983Date of Patent: October 1, 1985Assignee: Takeda Chemical Industries, Ltd.Inventors: Motoo Hozumi, Susumu Tsushima, Yoshio Yoshioka
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Patent number: 4542219Abstract: Ethylene glycol derivatives, inclusive of salts thereof, which have the formula: ##STR1## wherein R.sup.1 is C.sub.8-26 aliphatic hydrocarbon residue; R.sup.2, R.sup.3 and R.sup.4 are each hydrogen or lower alkyl which may be substituted, or --N.sup.+ R.sup.2 R.sup.3 R.sup.4 represents cyclic ammonio, exhibit inhibitory activity to multiplication of tumor cells and antimicrobial activity.Type: GrantFiled: March 24, 1982Date of Patent: September 17, 1985Assignee: Takeda Chemical Industries, Ltd.Inventors: Motoo Hozumi, Hiroaki Nomura, Yoshio Yoshioka
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Patent number: 4426525Abstract: Tridecyloxy- or tetradecyloxy-propane derivatives of the formula: ##STR1## wherein R.sup.1 is tridecyl or tetradecyl, R.sup.2 is hydrogen or --OCH.sub.3, and R.sup.3, R.sup.4 and R.sup.5 independently represent hydrogen or C.sub.1-3 alkyl, or ##STR2## represents cyclic ammonio, and their salts, have inhibitory activity to multiplication of tumor cells and antimicrobial activity.Type: GrantFiled: October 15, 1981Date of Patent: January 17, 1984Assignee: Takeda Chemical Industries, Ltd.Inventors: Motoo Hozumi, Susumu Tsushima, Yoshio Yoshioka
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Patent number: 4408052Abstract: New carbamic acid esters, inclusive of salts thereof, which have the formula: ##STR1## wherein n is zero or 1; R.sup.1 and R.sup.2 independently represent --H, --OCH.sub.3 or --OCONHR.sup.6 ; in which R.sup.6 is C.sub.8-26 aliphatic hydrocarbon residue provided that at least one of R.sup.1 and R.sup.2 is --OCONHR.sup.6 ; and R.sup.3, R.sup.4 and R.sup.5 independently represent hydrogen or lower alkyl, or ##STR2## represents cyclic ammonio, exhibit inhibitory activity to multiplication of tumor cells and antimicrobial activity.Type: GrantFiled: February 25, 1981Date of Patent: October 4, 1983Assignee: Takeda Chemical Industries, Ltd.Inventors: Motoo Hozumi, Hiroaki Nomura, Yoshio Yoshioka
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Patent number: 4249006Abstract: A new and industrially useful method of producing 1(or 1,3-bis)-(tetrahydro-2-furyl)-5-fluorouracil or a mixture thereof by reacting 5-fluorouracil with 2,3-dihydrofuran at elevated temperature in a closed vessel. Depending upon reaction conditions, each of the above 5-fluorouracil derivatives or a mixture of them is produced.1,3-Bis-(tetrahydro-2-furyl)-5-fluorouracil thus formed can be converted to 1-(tetrahydro-2-furyl)-5-fluorouracil by solvolysis under non-acidic conditions.Type: GrantFiled: November 24, 1976Date of Patent: February 3, 1981Assignee: Takeda Chemical Industries, Ltd.Inventors: Isao Minami, Yoshio Yoshioka, Hiroaki Nomura
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Patent number: 4211903Abstract: An electromagnetic puffer type gas circuit breaker comprises two opposing puffer type gas circuit breaking units mounted on midway support means, actuating means for driving the circuit breaking units, an electromagnetic actuating unit drivingly coupled to the actuating means, and current transfer mechanism for transferring and applying the interrupting current to the electromagnetic actuating unit during a circuit breaking operation. The current transfer mechanism is located, in operative connection to the actuating means, at a point above the midway support means and in a spaced relation to the electromagnetic actuating unit. The contact surface area of the current-conducting path portion leading to the transfer mechanism is a fraction of that of another current-conducting path portion for the passage of most of the rated current. These features provide ease of inspection and replacement of the current transfer mechanism and reduces the operating force requirement of the breaker.Type: GrantFiled: June 9, 1977Date of Patent: July 8, 1980Assignee: Hitachi, Ltd.Inventors: Masanori Tsukushi, Katsuichi Kashimura, Osamu Koyanagi, Yoshio Yoshioka, Kunio Hirasawa
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Patent number: 4182942Abstract: A puffer type gas-blast circuit breaker includes at least one interrupting unit mounted in a vessel filled with an arc-extinguishing gas of a unitary pressure.Type: GrantFiled: April 28, 1977Date of Patent: January 8, 1980Assignee: Hitachi, Ltd.Inventors: Osamu Koyanagi, Ken-ichi Natsui, Yoshio Yoshioka
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Patent number: 4160888Abstract: A puffer type gas-blast circuit breaker includes at least one interrupting unit mounted in a vessel filled with an arc-extinguishing gas of a unitary pressure.Type: GrantFiled: June 2, 1977Date of Patent: July 10, 1979Assignee: Hitachi, Ltd.Inventors: Ken-ichi Natsui, Kunio Hirasawa, Yoshio Yoshioka, Hiroshi Chida
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Patent number: 4132876Abstract: A puffer type gas circuit breaker comprises a first and a second arcing electrodes movable relative to each other, an insulating nozzle surrounding the second arcing electrode, a puffer device for introducing an arc-suppressing gas into the insulating nozzle to puff out the arc produced between the two arcing electrodes when the breaker is in motion for circuit breaking, and a movable shield device for relieving the concentration of an electric field at the front end of the first arcing electrode during the breaker motion for circuit breaking. When the breaker is closed and the circuit made, the movable shield device surrounds the first arcing electrode and insulating nozzle, with a predetermined gap between itself and the insulating nozzle opposite thereto, and is kept at the same potential as the first arcing electrode. The circuit breaker further includes a device for maintaining the predetermined gap and the same potential at least in the early stage of the breaker motion for current breaking.Type: GrantFiled: September 8, 1976Date of Patent: January 2, 1979Assignee: Hitachi, Ltd.Inventors: Minoru Sato, Isao Takahashi, Takanao Kurasawa, Yoshio Yoshioka, Yukio Nakagawa
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Patent number: 4110537Abstract: N.sup.1 -(2-tetrahydrofuryl)-5-fluorouracil is produced in high yield by reacting 5-fluorouracil with 2,3-dihydrofuran in the presence of trimethylsilyl chloride and a tertiary amine and treating the resultant mixture with an aqueous alkaline solution.Type: GrantFiled: December 16, 1976Date of Patent: August 29, 1978Assignee: Takeda Chemical Industries, Ltd.Inventors: Isao Minami, Yoshio Yoshioka, Hiroaki Nomura
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Patent number: 4105879Abstract: In a magnetic puffer type gas circuit breaker including an electromagnetic coil through which a current to be interrupted flows during the breaking operation, and an electromagnetic repulsive member which produces an electromagnetic repulsive force in cooperation with the electromagnetic coil and drives movable parts of a breaking portion of the apparatus, the electromagnetic repulsive member is so arranged that the electromagnetic neutral position of the electromagnetic repulsive member within the electromagnetic coil at the time when the breaking portion has been closed deviates on the closing side with respect to the electromagnetic center of the electromagnetic coil.Type: GrantFiled: March 7, 1977Date of Patent: August 8, 1978Assignee: Hitachi, Ltd.Inventors: Masanori Tsukushi, Katsuichi Kashimura, Kunio Hirasawa, Yoshio Yoshioka
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Patent number: 4059741Abstract: Two puffer type circuit breaking units are symmetrically disposed with respect to a bracket interposed therebetween. Linking means are mounted in the bracket, and one end of the linking means is connected to movable parts of the puffer type circuit breaking units and the other end is connected to operating means through an electrically insulated operating rod. An electromagnetic coil is disposed in the bracket and an electromagnetic repulsive member is electromagnetically connected to the electromagnetic coil to produce an electromagnetic repulsive force. During the breaking operation, current transferring means mounted in the puffer type breaking units are actuated to apply an electric current to the electromagnetic coil, and an electromagnetic repulsive force is imposed on the electromagnetic repulsive member to actuate the movable parts of the puffer type breaking units together with the operating means, whereby the breaking of a large current is made possible.Type: GrantFiled: February 24, 1976Date of Patent: November 22, 1977Assignee: Hitachi, Ltd.Inventors: Yoshio Yoshioka, Kunio Hirasawa, Masanori Tsukushi