Patents by Inventor Daisuke AKAFUJI

Daisuke AKAFUJI 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).

  • Publication number: 20200141493
    Abstract: A seal structure between an oil outlet formed in a first case and an oil inlet formed in a second case and having an end face facing an end face of the oil outlet with a clearance between the end faces, the seal structure including an annular first seal disposed in an increased-diameter hole, which is formed on an outlet side or an inlet side of an oil passage in one of the oil outlet and the oil inlet and has a larger diameter than the oil passage, such that the first seal contacts a step surface located at a boundary between the oil passage and the increased-diameter hole; and an annular second seal harder than the first seal and disposed in the increased-diameter hole such that the second seal contacts the first seal and the end face of the other of the oil outlet and the oil inlet.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 7, 2020
    Inventors: Daisuke AKAFUJI, Kazuya KAWAMURA, Toru ARAKI, Shinji ONISHI, Yuji OTSUKA