Patents by Inventor Hiroyasu Okafuji

Hiroyasu Okafuji 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).

  • METAL GASKET
    Publication number: 20150069721
    Abstract: A metal gasket 10 is provided with a columnar part 11 formed in a cylindrical shape; a beam part 12 that extends in a radial direction over the entire outer peripheral surface of the columnar part 11; and a circumferential groove 13 formed in the middle of a peripheral surface of the beam part 12; wherein the first sealing part 111 and the third sealing part 112 are formed as protruded parts, the second sealing part 122 is formed by deformation of a disk part 121 on one end side and the fourth sealing part 124 is formed by deformation of a disk part 123 on the other end side.
    Type: Application
    Filed: April 2, 2013
    Publication date: March 12, 2015
    Inventors: Hiroyasu Okafuji, Naoya Kuzawa, Hideaki Mori, Kojiro Otani