Patents by Inventor Hiroyuki Shibui

Hiroyuki Shibui 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).

  • Fuel Cell System, Moving Object Equipped With Fuel Cell System, and Abnormality Judgement Method For Fuel Cell System
    Publication number: 20090081492
    Abstract: A fuel cell system includes a fuel cell, a hydrogen gas pipework system for supplying hydrogen gas to the fuel cell, an injector which adjusts the gas state of the hydrogen gas pipework system in its upstream side and supplies it to its downstream side, and a control device which controls the drive of the injector in a predetermined drive period. This control device judges the presence of an abnormality in the hydrogen gas pipework system, based on a target injection amount for the injector and the detected pressure in the hydrogen gas pipework system.
    Type: Application
    Filed: November 22, 2006
    Publication date: March 26, 2009
    Inventors: Yoshinobu Hasuka, Hiroyuki Shibui, Norimasa Ishikawa