Patents by Inventor George Nagahira

George Nagahira 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).

  • Power source device
    Patent number: 4945255
    Abstract: A power source device including a lower voltage inverter transformer having plural secondary windings and a higher voltage inverter transformer having a primary winding connected directly to one of the secondary windings of the lower voltage inverter transformer without any rectifying circuit or inverter circuit interposed therebetween. The lower voltage and higher voltage transformers are contained in the same casing, the internal space of which is filled with an electrically insulative material to provide a unit device.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: July 31, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Suzuki, George Nagahira, Kazuyoshi Takahashi, Kunio Yoshihara, Toshiro Matsui, Tadashi Ishikawa