Patents by Inventor Keita Fujimaru

Keita Fujimaru 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).

  • Electronic device and electromagnetic noise control method
    Patent number: 9655270
    Abstract: An electronic device comprises a plurality of printed circuit boards having signal GNDs, a metal bar which electrically connects to the respective signal GNDs of the plurality of printed circuit boards, and a card basket which houses the plurality of printed circuit boards and the metal bar and serves as a frame GND. The electronic device also comprises a dielectric between the card basket and the metal bar. The metal bar, the card basket, and the dielectric constitute a noise control capacitor having specific frequency characteristics. By the specific frequency characteristics, the noise control capacitor releases electromagnetic noise occurring in the respective signal GNDs to an outside and shields external noise generated outside.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: May 16, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hiroyuki Kimata, Satoru Ishizaka, Toshio Anzai, Keita Fujimaru, Yoko Toda