Patents by Inventor Kouichi Matsumoto
Kouichi Matsumoto 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: 5005113Abstract: An inverter circuit includes fast transistors for PWM and slow switching thyristors for a fundamental frequency. The inverter circuit further includes a rectifying circuit for rectifying an input AC power and a bridge circuit. The bridge circuit includes a plurality of bridge circuit arms, each of the bridge circuit arms constituted by connecting a collector terminal of a transistor to a cathode terminal of a thyristor. An emitter of the transistor is connected to a negative side of the rectified output of the rectifying circuit, and an anode of the thyristor is connected to a positive side of the rectified output of the rectifying circuit.Type: GrantFiled: November 9, 1989Date of Patent: April 2, 1991Assignee: Sanyo Electric Co., Ltd.Inventors: Nobuo Ohtuka, Kouichi Matsumoto
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Patent number: 4918590Abstract: An electric circuit for supplying electrical power having a controlled frequency to a load includes thyristors, each having an anode terminal, a cathode terminal, and a gate terminal for supplying an electric current from the anode terminal to the cathode terminal; transistors, each having a collector terminal, an emitter terminal and a base terminal for switching ON/OFF an electric current from the collector terminal to the emitter terminal; an arm device connected between the cathode terminal of the thyristor and the collector of the transistor; bridge circuit device, having a plurality of arms between one terminal and another terminal of an electrical power source, so that the positive terminal is coupled to the anode terminal of the thyristors and the negative terminal is coupled to the emitter terminal of the transistor, and controlling circuit, connected to the load, for supplying an electric signal to the base terminal of the transistor to apply an electric voltage intermittently to the load, and supplType: GrantFiled: November 15, 1988Date of Patent: April 17, 1990Assignee: Sanyo Electric Co., Ltd.Inventors: Nobuo Ohtuka, Kouichi Matsumoto
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Patent number: 4796053Abstract: A variable magnification apparatus is provided with a magnification converting mechanism and a scan speed change mechanism. In the magnification converting mechanism, the force generated by operating a magnification converting lever is transmitted to the lens holder through a magnification change-over arm and to a speed change selection member through a scan speed change shaft. In the scan speed change mechanism, the number of rotations of an output shaft is changed by a selected rotation transmission member which is actuated by a speed change ratio selection member.Type: GrantFiled: October 2, 1987Date of Patent: January 3, 1989Assignee: Sharp Kabushiki KaishaInventors: Hiroshi Nakamura, Tatsushi Hayashi, Ken-ichi Iwamoto, Kenji Okada, Kouichi Matsumoto, Shoichiro Yoshiura
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Patent number: 4782360Abstract: A rotary type developing apparatus for use in an image forming arrangement, which is so arranged that, by restricting rotational angle of each of a plurality of developer units (A, B), mixing of developing materials in a receiving pan (27) is prevented, and even if some mixing should take place, mixture of a colored developer material with a non-colored developing material may be advantageously reduced.Type: GrantFiled: January 12, 1987Date of Patent: November 1, 1988Assignee: Sharp Kabushiki KaishaInventors: Ken-ichi Iwamoto, Kouichi Matsumoto, Hiroshi Kida, Tatsuya Inoue, Shoichiro Yoshiura
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Patent number: 4723172Abstract: A facsimile apparatus comprises a reading device for reading information from an original sheet, a transmission device for transmitting picture information, and a detecting device for detecting the presence of the original sheet at a predetermined position. A memory is provided for storing predetermined picture information representing pagination between successive original sheets. The operation of the facsimile apparatus is controlled by a control device which is adapted to cause the transmission device to transmit the picture information stored in the memory when the trailing end of a preceding original sheet or a leading end of a succeeding original sheet is detected by the detecting device during reading and transmission of information from a plurality of successive original sheets, while allowing transmission of information carried by a plurality of successive separate original sheets as a batch of information carried by a single continuous sheet.Type: GrantFiled: April 9, 1986Date of Patent: February 2, 1988Assignee: Canon Kabushiki KaishaInventor: Kouichi Matsumoto
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Patent number: 4719784Abstract: A roll bending apparatus for use in a multi-stage rolling mill adapted for rolling a hard material or a thin sheet material with a high uniformity of thickness along the breadth, with a high degree of accuracy and low energy. The rolling mill has work rolls of a comparatively small diameter. The amount of bend of the small-diameter work roll is controlled by the roll bending apparatus for attaining the high degree of uniformity of thickness along the breadth of the rolled material. The roll bending apparatus has, for each of said work rolls, a supporting member having a work roll supporting portion for rotatably supporting the work roll and rockable vertically about a fulcrum, and a bending force generating means adapted for engaging the supporting member so as to cause a rocking motion of the supporting member thereby applying a substantially vertical roll bending force to the work roll through the supporting member.Type: GrantFiled: April 3, 1986Date of Patent: January 19, 1988Assignee: Hitachi, Ltd.Inventors: Kouichi Matsumoto, Masahiro Hayashi, Toshiyuki Kajiwara
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Patent number: 4713241Abstract: A bacterial insecticide containing an insecticidal substance produced by a practically reversionless asporogenous mutant of Bacillus thuringiensis, especially Bacillus thuringiensis serovar. kurstaki 290-1 and the process for the production in addition to a practically reversionless asporogenous mutant of Bacillus thuringiensis, especially Bacillus thuringiensis serovar. kurstaki 290-1 and the process for the production.Type: GrantFiled: October 15, 1984Date of Patent: December 15, 1987Assignee: Shionogi & Co., Ltd.Inventors: Yoshiharu Wakisaka, Junko Uo, Kouichi Matsumoto, Osamu Ohodaira, Kentaro Tanaka
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Patent number: 4685798Abstract: A cleaner unit for an electrophotographic copying machine including a scraper blade in contact with the surface of a photoreceptive drum and a container for storing toner stripped from the surface of the photoreceptive drum by the scraper blade.Type: GrantFiled: September 4, 1985Date of Patent: August 11, 1987Assignee: Sharp Kabushiki KaishaInventor: Kouichi Matsumoto
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Patent number: 4647408Abstract: Antibiotics PA-41746-A.sub.2, PA-41746-E and PA-41746-F produced by fermentation of Streptomyces pluracidomyceticus on a conventional culture medium, having .beta.-lactamase inhibitory activities and excellent antimicrobial activities, and useful as drugs for treatment of infections in humans or animals, or as disinfectants.Type: GrantFiled: January 27, 1984Date of Patent: March 3, 1987Assignee: Shionogi & Co., Ltd.Inventors: Kentaro Tanaka, Eiji Kondo, Kouichi Matsumoto, Naoki Tsuji
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Patent number: 4590385Abstract: An automatic starter for a vehicle equipped with an automatic transmission with which excessively abrupt starting of the engine of the vehicle is inhibited. The automatic starter includes an accelerator pedal having first and second accelerator pedal members. The first accelerator pedal member is attached to the second accelerator pedal member through a returning elastic member so as to be biased apart. A rod extends downwardly from the second accelerator pedal member through the first accelerator pedal member with the lower end of the rod forming the operating element of a solenoid. The two accelerator pedal members carry contacts which are closed when the second accelerator pedal member is depressed downwardly against the first accelerator pedal member. Upon the starting of the vehicle, the solenoid is energized to hold the two accelerator pedal members together.Type: GrantFiled: November 15, 1983Date of Patent: May 20, 1986Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Isao Hamano, Akira Morishita, Yoshifumi Akae, Toshinori Tanaka, Kouichi Matsumoto, Takeo Gotou, Kiyoshi Yabunaka
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Patent number: 4543923Abstract: An engine starter comprises a d.c. motor, a pinion secured to one end of the rotary shaft of the d.c. motor, a rotary flange having a ring gear which is always interlocked with the pinion to be driven, a flywheel which is on one hand, connected to the rotary flange through rotational force one-way coupling clutch and is, on the other hand, firmly secured to the crank shaft of the engine, an air motor connected to the other end of the rotary shaft of the d.c. motor and an air tank communicated to the air motor through a piping, an electromagnetic valve being interposed in the piping.Type: GrantFiled: November 17, 1983Date of Patent: October 1, 1985Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Isao Hamano, Kiyoshi Yabunaka, Yoshifumi Akae, Toshinori Tanaka, Takeo Gotou, Kouichi Matsumoto
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Patent number: 4495905Abstract: A starting device comprises a first power transmitting device connected to a crank shaft of the engine of a car, a compressor driven by a power output from the first power transmitting device, an air motor whose rotary shaft is driven by feeding compressed air of the compressor through an air reservoir via an air feeding tube, a valve device placed in the air feeding tube, a second power transmitting device installed between the rotary shaft and the crank shaft, a stopping device for stopping the engine when a burden of the engine disappears during car driving, and a controlling device which causes the air motor to actuate by opening the valve device at the time of restarting the engine to control starting of the crank shaft through the second power transmitting device.Type: GrantFiled: January 3, 1984Date of Patent: January 29, 1985Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Akira Morishita, Toshinori Tanaka, Kouichi Matsumoto, Takeo Gotou
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Patent number: 4456686Abstract: A new antibiotic having .beta.-lactamase inhibitory activity, PA-39504-X.sub.1 of the formula: ##STR1## being useful as a medicament and a veterinary drug for inhibiting the growth of gram-positive and gram-negative pathogenic microorganisms and a process for preparing the same, being characterized by cultivating Streptomyces argenteolus PA-39504 or Streptomyces tokunonensis PA-31088 in a suitable medium and recovering PA-39504-X.sub.1 from the cultured broth.Type: GrantFiled: September 22, 1982Date of Patent: June 26, 1984Assignee: Shionogi & Co., Ltd.Inventors: Kentaro Tanaka, Eiji Kondo, Kouichi Matsumoto, Jun'ichi Shoji, Naoki Tsuji
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Patent number: 4448723Abstract: New antibiotics having .beta.-lactamase inhibitory activity, PA-41746-B and C of the formula ##STR1## wherein R is carboxymethylsulfinyl (PA-41746-B) or formylsulfinyl (PA-41746-C) and the pharmaceutically acceptable salts being useful as a medicament, a veterinary drug and a disinfectant for inhibiting the growth of gram-positive and gram-negative pathogenic microorganisms and a process for preparing the same, being characterized by cultivating Streptomyces pluracidomyceticus in a suitable medium and isolating PA-41746-B and/or PA-41746-C from the culture broth.Type: GrantFiled: September 29, 1982Date of Patent: May 15, 1984Assignee: Shionogi & Co., Ltd.Inventors: Kentaro Tanaka, Eiji Kondo, Mikao Mayama, Kouichi Matsumoto, Yoshimi Kawamura, Naoki Tsuji
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Patent number: 4387052Abstract: A new antibiotic having .beta.-lactamase inhibitory activity, PA-39504-X.sub.3 of the formula: ##STR1## and the pharmaceutically acceptable slats being useful as a drug, a animal drug and a disinfectant for inhibiting the growth of gram-positive and gram-negative pathogenic microorganisms and a process for preparing the same, being characterized by cultivating Streptomyces argenteolus PA-39504 or Streptomyces tokunonensis PA-31088 in a suitable medium and isolating PA-39504-X.sub.3 from the cultured broth.Type: GrantFiled: July 27, 1981Date of Patent: June 7, 1983Assignee: Shionogi & Co., Ltd.Inventors: Kentaro Tanaka, Eiji Kondo, Kouichi Matsumoto, Jun'ichi Shoji, Naoki Tsuji
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Patent number: 4362665Abstract: A new antibiotic having .beta.-lactamase inhibitory activity, PA-39504-X.sub.1 of the formula: ##STR1## being useful as a medicament and a veterinary drug for inhibiting the growth of gram-positive and gram-negative pathogenic microorganisms and a process for preparing the same, being characterized by cultivating Streptomyces argenteolus PA-39504 or Streptomyces tokunonensis PA-31088 in a suitable medium and recovering PA-39504-X.sub.1 from the cultured broth.Type: GrantFiled: December 1, 1980Date of Patent: December 7, 1982Assignee: Shionogi & Co., Ltd.Inventors: Kentaro Tanaka, Eiji Kondo, Kouichi Matsumoto, Jun'ichi Shoji, Naoki Tsuji
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Patent number: 4292241Abstract: A new antibiotic having .beta.-lactamase inhibitory activity, PA-31088-IV, being useful as a medicament and a veterinary drug for inhibiting the growth of gram-positive and gram-negative phathogenic microorganisms and a process for preparing the same, being characterized by cultivating Streptomyces tokunonensis sp. nov. in a suitable medium and recovering PA-31088-IV from the cultured broth.Type: GrantFiled: January 25, 1980Date of Patent: September 29, 1981Assignee: Shionogi & Co., Ltd.Inventors: Kentaro Tanaka, Jun'ichi Shoji, Yoshimi Kawamura, Teruo Hattori, Eiji Kondo, Kouichi Matsumoto, Tadashi Yoshida, Naoki Tsuji
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Patent number: 4256835Abstract: A novel process for preparing cephamycin C known antibiotic being useful as a medicament and veterinary drug, characterized by cultivating Streptomyces todorominensis sp. nov. in a suitable medium and recovering cephamycin C from the fermentation broth.Type: GrantFiled: February 27, 1979Date of Patent: March 17, 1981Assignee: Shionogi & Co., Ltd.Inventors: Yoshimi Kawamura, Jun'ichi Shoji, Kouichi Matsumoto
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Patent number: 4000881Abstract: Apparatus which may be preliminarily attached to the outside elevated place of a hotel, department store or any other building or structure, whereby in case of an emergency such as a fire or earthquake a person suitably attaches his or her body to a rope and descends to escape to a safe place.Type: GrantFiled: June 19, 1975Date of Patent: January 4, 1977Assignee: Matsumoto Kiko Co., Ltd.Inventor: Kouichi Matsumoto
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Patent number: 3969501Abstract: A new antibiotic, 342-14-I, bein useful as a medicament and veterinary drug for inhibiting the growth of gram-positive pathogenic microorganism, and a process for preparing the same, being characterized by cultivating a 342-14-I-producing strain of microorganism belonging to the Genus Bacillus in an aqueous nutrient medium under aerobic conditions.Type: GrantFiled: May 23, 1975Date of Patent: July 13, 1976Assignee: Shionogi & Co., Ltd.Inventors: Jun'ichi Shoji, Mikao Mayama, Shinzo Matsuura, Kouichi Matsumoto, Yoshiharu Wakisaka