Patents by Inventor Naoya SUTO

Naoya SUTO 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 conversion device and manufacturing method of power conversion device
    Patent number: 11888408
    Abstract: A negative-side bus bar 41 includes a capacitor connection portion and first and second negative terminal portions 271 exposed from a resin portion 44 and connected to a DC negative-side terminals 103 of first and second power semiconductor modules 30. A partition portion 252b of a case 252 is provided with a protruding portion 281 that protrudes toward a mold bus bar 40 further than an upper surface 257 of the first and second power semiconductor modules 30 and is thermally coupled to the mold bus bar 40. The projecting portion 281 is disposed between a root portion 275 of an exposed portion where the first negative electrode terminal portion 271 is exposed from the resin portion 44 and a second root portion 275 of an exposed portion where the second negative electrode terminal portion 271 is exposed from the resin portion 44.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: January 30, 2024
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Takeshi Seki, Ayumu Hatanaka, Naoya Suto
  • POWER CONVERSION DEVICE AND MANUFACTURING METHOD OF POWER CONVERSION DEVICE
    Publication number: 20220158566
    Abstract: A negative-side bus bar 41 includes a capacitor connection portion and first and second negative terminal portions 271 exposed from a resin portion 44 and connected to a DC negative-side terminals 103 of first and second power semiconductor modules 30. A partition portion 252b of a case 252 is provided with a protruding portion 281 that protrudes toward a mold bus bar 40 further than an upper surface 257 of the first and second power semiconductor modules 30 and is thermally coupled to the mold bus bar 40. The projecting portion 281 is disposed between a root portion 275 of an exposed portion where the first negative electrode terminal portion 271 is exposed from the resin portion 44 and a second root portion 275 of an exposed portion where the second negative electrode terminal portion 271 is exposed from the resin portion 44.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 19, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Takeshi SEKI, Ayumu HATANAKA, Naoya SUTO