Patents by Inventor Akinari Nobumoto

Akinari Nobumoto 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).

  • Insert of pour-around die casting, rust preventive oil for insert of pour-around die casting, and method for pouring around an insert
    Patent number: 6733903
    Abstract: Disclosed are an insert of pour-around die casting, which is incorporated by an aluminum alloy die casting and has an organic film formed on the surface of the insert, wherein the organic film contains a higher fatty acid ester, a petroleum sulfonate and a mineral oil and has a thickness of from 0.5 to 2 &mgr;m, a rust preventive oil used therefor, and a method for incorporating the insert with an aluminum alloy die casting.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: May 11, 2004
    Assignees: Teipi Industry Co., Ltd., Teikoku Piston Ring Co., Ltd.
    Inventors: Takahiro Suzuki, Akinari Nobumoto, Giichiro Saito