Patents by Inventor Makota Yoneda

Makota Yoneda 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).

  • Lubricant oil composition for internal combustion engines (law859)
    Patent number: 6638897
    Abstract: The lubricating oil of the present invention exhibits an excellent effect of agglomerating solid impurity particles it contains to a sufficiently large size as to be captured and removed by an oil filter.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: October 28, 2003
    Assignee: TonenGeneral Sekiyu K.K.
    Inventors: Satoshi Ogano, Nobuchika Kawagoishi, Makota Yoneda, Toshiaki Kuribayashi