Patents by Inventor Ikuhiro Miyashita

Ikuhiro Miyashita 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).

  • Patent number: 6724292
    Abstract: An object is to provide a thermal fuse that is free of a trouble of welding contact between a movable electrode (4) and a lead (2) even when temperature of an equipment to which the thermal fuse is connected rises gradually and that has small electric resistance at the time of conduction.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: April 20, 2004
    Assignees: NEC Schott Components Corporation, Tokuriki Honten Co., Ltd.
    Inventors: Ikuhiro Miyashita, Tokihiro Yoshikawa, Michihiko Nishijima, Hideo Kumita
  • Publication number: 20030112117
    Abstract: An object is to provide a thermal fuse that is free of a trouble of welding contact between a movable electrode (4) and a lead (2) even when temperature of an equipment to which the thermal fuse is connected rises gradually and that has small electric resistance at the time of conduction.
    Type: Application
    Filed: November 14, 2002
    Publication date: June 19, 2003
    Inventors: Ikuhiro Miyashita, Tokihiro Yoshikawa, MIchihiko NIshijima, Hideo Kumita
  • Patent number: 6213590
    Abstract: A high reliability ink jet head for an ink jet recording apparatus enabling consistent ink ejecting with no nozzle clogging. The ink jet head therefor comprises a substrate comprising plural ink passages, each comprising a nozzle, pressure generator continuous to the nozzle, and an orifice, and an ink supply member common to the plural ink passages. The substrate comprising an anisotropic crystalline material such as silicon, and a filter channel formed integrally to the ink supply member by anisotropic etching.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: April 10, 2001
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Fujii, Keiichi Mukaiyama, Hiroyuki Maruyama, Tadaaki Hagata, Ikuhiro Miyashita
  • Patent number: 5992978
    Abstract: A high reliability ink jet head for an ink jet recording apparatus enabling consistent ink ejecting with no nozzle clogging. The ink jet head therefor comprises a substrate comprising plural ink passages, each comprising a nozzle, pressure generator continuous to the nozzle, and an orifice, and an ink supply member common to the plural ink passages. The substrate comprising an anisotropic crystalline material such as silicon, and a filter channel formed integrally to the ink supply member by anisotropic etching.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: November 30, 1999
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Fujii, Keiichi Mukaiyama, Hiroyuki Maruyama, Tadaaki Hagata, Ikuhiro Miyashita
  • Patent number: 5975668
    Abstract: An ink jet printer provided with an ink jet print head having a nozzle, an ink channel that is connected to the nozzle, and an electrostatic actuator that is composed of a diaphragm that is provided in a part of the ink channel and an electrode placed outside of the ink channel opposite to the diaphragm. The diaphragm is distorted by means of an electrostatic force generated by applying voltage to the electrostatic actuator thereby performing printing with ink droplets ejected from the nozzle. The electrostatic actuator driver comprises a timing pulse generator, charge circuit and discharge circuit. The driver controls an amount of charge to be charged to the electrostatic actuator as well as charge rate thereof corresponding to the environmental operating condition of the ink jet printer.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: November 2, 1999
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Fujii, Ikuhiro Miyashita, Shigeo Sugimura, Hiroshi Koeda, Naoki Kobayashi, Asahiro Oguchi
  • Patent number: 5821951
    Abstract: An ink jet printer provided with an ink jet print head having a nozzle, an ink channel that is connected to the nozzle, and an electrostatic actuator that is composed of a diaphragm that is provided in a part of the ink channel and an electrode placed outside of the ink channel opposite to the diaphragm. The diaphragm is distorted by means of an electrostatic force generated by applying voltage to the electrostatic actuator thereby performing printing with ink droplets ejected from the nozzle. The electrostatic actuator driver comprises a timing pulse generator, charge circuit and discharge circuit. The driver controls an amount of charge to be charged to the electrostatic actuator as well as charge rate thereof corresponding to the environmental operating condition of the ink jet printer.
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: October 13, 1998
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Fujii, Ikuhiro Miyashita, Shigeo Sugimura, Hiroshi Koeda, Naoki Kobayashi, Asahiro Oguchi
  • Patent number: 5668579
    Abstract: An ink jet printer provided with an ink jet print head having a nozzle, an ink channel that is connected to the nozzle, and an electrostatic actuator that is composed of a diaphragm that is provided in a part of the ink channel and an electrode placed outside of the ink channel opposite to the diaphragm. The diaphragm is distorted by means of an electrostatic force generated by applying voltage to the electrostatic actuator thereby performing printing with ink droplets ejected from the nozzle. The electrostatic actuator driver comprises a timing pulse generator, charge circuit and discharge circuit. The driver controls an amount of charge to be charged to the electrostatic actuator as well as charge rate thereof corresponding to the environmental operating condition of the ink jet printer.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: September 16, 1997
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Fujii, Ikuhiro Miyashita, Shigeo Sugimura, Hiroshi Koeda, Naoki Kobayashi, Asahiro Oguchi
  • Patent number: 5644341
    Abstract: An inkjet printer provided with an ink jet print head having a nozzle, an ink channel that is connected to the nozzle, and an electrostatic actuator that is composed of a diaphragm that is provided in a part of the ink channel and an electrode placed outside of the ink channel opposite to the diaphragm. The diaphragm is distorted by means of an electrostatic force generated by applying a first voltage to the electrostatic actuator. A second voltage, different than the first voltage, is applied to the actuator to relax the diaphragm and to discharge ejecting ink droplets from the nozzle.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: July 1, 1997
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Fujii, Ikuhiro Miyashita, Hiroshi Koeda, Keiichi Mukaiyama, Hiroyuki Maruyama, Noriyoshi Otsuki, Toshiaki Watanabe, Naoki Kobayashi
  • Patent number: 5563634
    Abstract: An ink jet printer provided with an ink jet print head having a nozzle, an ink channel that is connected to the nozzle, and an electrostatic actuator that is composed of a diaphragm that is provided in a part of the ink channel and an electrode placed outside of the ink channel opposite to the diaphragm. The diaphragm is distorted by means of an electrostatic force generated by applying a first voltage to the electrostatic actuator. A second voltage, different than the first voltage, is applied to the actuator to relax the diaphragm and to discharge ejecting ink droplets from the nozzle.
    Type: Grant
    Filed: July 12, 1994
    Date of Patent: October 8, 1996
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Fujii, Ikuhiro Miyashita, Hiroshi Koeda