Patents by Inventor Hisasi Ushigome

Hisasi Ushigome 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).

  • Magnetic recording medium
    Patent number: 5523153
    Abstract: A magnetic recording medium having a non-magnetic substrate and a magnetic layer prepared by coating a magnetic paint on the substrate, wherein the magnetic layer contains inorganic electrically conductive particles and an electroconductive polymer, has a high content of magnetic powder and a low surface electrical resistance.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: June 4, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Hisasi Ushigome