Patents by Inventor Humihiko YAMADA

Humihiko YAMADA 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).

  • Two-shaft rotary pump with escape holes
    Patent number: 10077773
    Abstract: Provided is a two-shaft rotary pump which is capable of improving reliability and operation efficiency by preventing an exhaust gas from flowing backward into a pump as much as possible, preventing the interior of the pump form being excessively compressed as much as possible, and suppressing temperature rise in the pump.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: September 18, 2018
    Assignee: Orion Machinery Co., Ltd.
    Inventors: Yosuke Yoshida, Shingo Harayama, Shun Miyazawa, Humihiko Yamada
  • TWO-SHAFT ROTARY PUMP
    Publication number: 20160040669
    Abstract: Provided is a two-shaft rotary pump which is capable of improving reliability and operation efficiency by preventing an exhaust gas from flowing backward into a pump as much as possible, preventing the interior of the pump form being excessively compressed as much as possible, and suppressing temperature rise in the pump.
    Type: Application
    Filed: May 29, 2014
    Publication date: February 11, 2016
    Inventors: Yosuke YOSHIDA, Shingo HARAYAMA, Shun MIYAZAWA, Humihiko YAMADA