Patents by Inventor Kouji UTSUI

Kouji UTSUI 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 supply device
    Patent number: 10412848
    Abstract: A power supply device 1 includes a main circuit board 20, a power component 22 connected to the main circuit board 20, a filter component 24 connected to the main circuit board 20, and a casing 10 which houses the main circuit board 20, the power component 22, and the filter component 24. The casing 10 includes a base plate 11 which includes a flat surface 11a in which a fin 14 for heat dissipation is provided on a bottom-surface side, and a protruding part 15 which protrudes from the flat surface toward the fin. The power component 22 and the main circuit board 20 are placed on the flat surface, and the filter component 24 is housed in the protruding part 15.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: September 10, 2019
    Assignee: TDK CORPORATION
    Inventors: Kengo Tsujimoto, Kouji Utsui, Akira Ikezawa
  • POWER SUPPLY DEVICE
    Publication number: 20170208702
    Abstract: A power supply device 1 includes a main circuit board 20, a power component 22 connected to the main circuit board 20, a filter component 24 connected to the main circuit board 20, and a casing 10 which houses the main circuit board 20, the power component 22, and the filter component 24. The casing 10 includes a base plate 11 which includes a flat surface 11a in which a fin 14 for heat dissipation is provided on a bottom-surface side, and a protruding part 15 which protrudes from the flat surface toward the fin. The power component 22 and the main circuit board 20 are placed on the flat surface, and the filter component 24 is housed in the protruding part 15.
    Type: Application
    Filed: January 18, 2017
    Publication date: July 20, 2017
    Applicant: TDK CORPORATION
    Inventors: Kengo TSUJIMOTO, Kouji UTSUI, Akira IKEZAWA