Patents by Inventor Nozomu Takagi

Nozomu Takagi 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).

  • Anode-cathode structure for ion pump having specifically determined dimensions
    Patent number: 5980212
    Abstract: A sputter ion pump in which the ratio of the length L to the diameter D of each anode cell forming a multi-cell anode inserted between two cathodes is defined within a certain range, thereby increasing a critical vacuum level to be evacuated and achieving a higher exhaust speed.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: November 9, 1999
    Assignee: Nihon Shinku Gijutsu Kabushiki Kaisha
    Inventors: Guo Hua Shen, Nozomu Takagi, Toshihiro Terasawa, Tsuyoshi Kotani, Hiroyuki Kinpara, Katsuji Nakajima, Hiroyuki Miho