Patents by Inventor Mashaharu Kojima

Mashaharu Kojima 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).

  • Oil filter for transmission
    Patent number: 4746427
    Abstract: An oil filter for a transmission has a hollow cylindrical structure comprising a cylindrical stem having an oil inlet and a cylindrical net support frame extending from the stem in the lengthwise direction thereof, the stem and net support frame being constituted by a one-piece molding of a synthetic resin, and a cylindrical net supported by the support frame. A magnet holder is provided at an end of the net support frame. Fine iron particles are attracted and removed by a magnet mounted in the magnet holder.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: May 24, 1988
    Assignee: Nifco Inc.
    Inventors: Moritoshi Fukuda, Mashaharu Kojima