Patents by Inventor Youichirou Ikeya

Youichirou Ikeya 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).

  • ROTARY VALVE AND CRYOGENIC REFRIGERATOR USING SAME
    Publication number: 20130025297
    Abstract: A rotary valve includes a valve body and a valve plate. The valve body has a body-side passage formed therein, and includes a first slide surface. The valve plate has a plate-side passage formed therein, and includes a valve plate body and a resin valve slide body. The valve plate body is formed of a non-magnetic material and includes an accommodation room. The resin valve slide body is accommodated in the accommodation room of the valve plate body. The resin valve slide body includes a second slide surface in close contact with the first slide surface of the valve body. The valve plate rotates to switch a state of connection of the body-side passage and the plate-side passage.
    Type: Application
    Filed: October 11, 2012
    Publication date: January 31, 2013
    Applicant: SUMITOMO HEAVY INDUSTRIES, LTD
    Inventors: Takahiro MATSUBARA, Youichirou Ikeya