Patents by Inventor Ran Ito

Ran Ito 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).

  • Power controlling apparatus using friction material
    Patent number: 4523668
    Abstract: A friction material made of a molded cork, a friction surface of which is covered with a liquid or semi-solid lubricant layer including a solid lubricant layer comprising a solid lubricant having a larger particle size and a solid lubricant having a smaller particle size and filling vacant spaces between the larger-sized solid lubricant in dense form, affords a long service life when used in a power controlling apparatus which can transmit power and/or change rotation speed by applying friction and using a friction material.
    Type: Grant
    Filed: August 4, 1982
    Date of Patent: June 18, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Takao Uematsu, Yoshiharu Honma, Seikichi Tanno, Ran Ito, Jun Matsubayashi, Tomio Yoshida