Patents by Inventor Keiichi Mimori

Keiichi Mimori 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).

  • X-ray tube
    Patent number: 9741523
    Abstract: According to one embodiment, an X-ray tube includes an elongated anode target, a cathode, and a vacuum envelope. The cathode includes an electron emission source and a converging electrode including a trench portion. The trench portion includes a closest inner circumferential wall, an upper inner circumferential wall, and a lower inner circumferential wall. The electron emission source projects towards a opening of the trench portion from a boundary between the closest inner circumferential wall and the upper inner circumferential wall.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: August 22, 2017
    Assignee: Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Hiroshi Kanasaki, Hideyuki Takahashi, Keiichi Mimori, Masataka Ueki
  • X-RAY TUBE
    Publication number: 20160099128
    Abstract: According to one embodiment, an X-ray tube includes an elongated anode target, a cathode, and a vacuum envelope. The cathode includes an electron emission source and a converging electrode including a trench portion. The trench portion includes a closest inner circumferential wall, an upper inner circumferential wall, and a lower inner circumferential wall. The electron emission source projects towards a opening of the trench portion from a boundary between the closest inner circumferential wall and the upper inner circumferential wall.
    Type: Application
    Filed: October 7, 2014
    Publication date: April 7, 2016
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Hiroshi KANASAKI, Hideyuki Takahashi, Keiichi Mimori, Masataka Ueki