Patents by Inventor Yukio Yaginuma

Yukio Yaginuma 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).

  • Excessive pressure release valve and release valve unit having the release valve
    Patent number: 8443840
    Abstract: Provided is a small, simple-structured, homogeneous and mass-producible excessive pressure release valve which works even at a relatively low excessive pressure to surely and safely release the pressure to the external world. The excessive pressure release valve has an elastic rubber plate and a reversibly openable slit that passes through the upper and the lower surfaces and release the pressure to the external world when the internal excessive pressure stressing on the lower side surface, pushes and opens the slit toward upper surface side. The elastic rubber plate is made of silicone rubber containing 1-20% by mass of silicone oil.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: May 21, 2013
    Assignee: Asahi Rubber Inc.
    Inventors: Masashi Nemoto, Yukio Yaginuma, Takeo Yamashita
  • Excessive Pressure Release Valve And Release Valve Unit Having The Release Valve
    Publication number: 20100032039
    Abstract: Provided is a small, simple-structured, homogeneous and mass-producible excessive pressure release valve which works even at a relatively low excessive pressure to surely and safely release the pressure to the external world. The excessive pressure release valve has an elastic rubber plate and a reversibly openable slit that passes through the upper and the lower surfaces and release the pressure to the external world when the internal excessive pressure stressing on the lower side surface, pushes and opens the slit toward upper surface side. The elastic rubber plate is made of silicone rubber containing 1-20% by mass of silicone oil.
    Type: Application
    Filed: February 14, 2008
    Publication date: February 11, 2010
    Applicant: Asahi Rubber Inc.
    Inventors: Masashi Nemoto, Yukio Yaginuma, Takeo Yamashita