Patents by Inventor Yasushi Fujihira

Yasushi Fujihira 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).

  • Air springs
    Patent number: 4807858
    Abstract: An air spring comprises an air sleeve airtightly connected at both end portions to a piston and an end cap. The air sleeve has a substantially tapered form as a whole, wherein a portion forming a turned-up portion under a service stroke is a circumferentially continuous thin-gauge portion and a portion adjacent to at least one end of the thin-gauge portion is a circumferentially continuous thick-gauge portion.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: February 28, 1989
    Assignee: Bridgestone Corporation
    Inventors: Isao Watanabe, Yasushi Fujihira