Patents by Inventor Yukio Ikuta

Yukio Ikuta 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).

  • Patent number: 5290627
    Abstract: A friction material for operating in oil containing 5 to 70 wt. % of fibrillated ramie fibers with a freeness of 400 to 700 ml and a friction material for operating in oil further containing cotton pulp and/or aramid fibers in addition to said fibrillated ramie fibers. They improve the wear resistance of friction material under the conditions of high-speed and high-pressure applied and in moisture-containing oil.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: March 1, 1994
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventor: Yukio Ikuta