Patents by Inventor Masayoshi Onishi

Masayoshi Onishi 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).

  • Internal combustion engine ignition device
    Patent number: 4349007
    Abstract: The disclosed ignition device for a four-cylinder engine includes an ignition unit performing the ignition function in response to ignition signals. A rotor and a stator disposed in a metallic housing to serve to generate the ignition signals include four protrusions and three protuberances respectively. By rendering the number of the protuberances smaller than that of the protrusions, a space is left in the housing. Two bearing seats are disposed in the space at the opening of the housing and the ignition unit is screwed to the bearing seats.
    Type: Grant
    Filed: June 2, 1981
    Date of Patent: September 14, 1982
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masayoshi Onishi, Shinichi Nobuto, Takashi Kawakami, Shigemi Yamamoto
  • Internal combustion engine ignition device
    Patent number: 4315493
    Abstract: The disclosed ignition device for a four-cylinder engine includes an ignition unit performing the ignition function in response to ignition signals. A rotor and a stator disposed in a metallic housing to serve to generate the ignition signals include four protrusions and three protuberances respectively. By rendering the number of the protuberances smaller than that of the protrusions, a space is left in the housing. Two bearing seats are disposed in the space at the opening of the housing and the ignition unit is screwed to the bearing seats.
    Type: Grant
    Filed: November 9, 1979
    Date of Patent: February 16, 1982
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masayoshi Onishi, Yoshikatu Haruta, Toshiyuki Sakurai, Shigemi Yamamoto
  • Process for preparing distribution rotor
    Patent number: 4043030
    Abstract: A distribution rotor is prepared by forming an electrode, having a central electrode part, an outer electrode part, and connecting parts, and fixing a resistor to both the central electrode part and the outer electrode part, subsequently severing and removing the connecting parts, and molding the assembly of the electrode and the resistor with a resin so as to form a one piece resin housing thereabout.
    Type: Grant
    Filed: July 30, 1976
    Date of Patent: August 23, 1977
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Masayoshi Onishi, Yoshinobu Aiyama