Patents by Inventor Hirofumi HIMEI

Hirofumi HIMEI 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).

  • Annular valve and valve body for annular valve
    Patent number: 11041572
    Abstract: An annular valve in which the shape of a sealing surface of a valve body is optimized thus suppressing the occurrence of pressure loss in gas on the periphery of the sealing surface and extending the service life of the annular valve.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: June 22, 2021
    Inventors: Masaru Fujinami, Hirofumi Himei, Tsukasa Suzuki, Kazuhiro Shimizu, Shuji Ishihara, Kazuki Takizawa, Kouichi Takemoto
  • ANNULAR VALVE AND VALVE BODY FOR ANNULAR VALVE
    Publication number: 20200370668
    Abstract: An annular valve in which the shape of a sealing surface of a valve body is optimized thus suppressing the occurrence of pressure loss in gas on the periphery of the sealing surface and extending the service life of the annular valve.
    Type: Application
    Filed: March 16, 2018
    Publication date: November 26, 2020
    Inventors: Masaru FUJINAMI, Hirofumi HIMEI, Tsukasa SUZUKI, Kazuhiro SHIMIZU, Shuji ISHIHARA, Kazuki TAKIZAWA, Kouichi TAKEMOTO