Patents by Inventor Akira Nabara

Akira Nabara 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 and process for the production thereof
    Patent number: 4476195
    Abstract: A magnetic recording medium having, on a non-magnetic support, a magnetic recording layer of a mixture of a ferromagnetic material and an organic lubricant, which magnetic recording layer is prepared by the simultaneous vacuum evaporation process to result in improvements upon the surface strength and slip characteristics.
    Type: Grant
    Filed: July 2, 1980
    Date of Patent: October 9, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Ono, Akira Nabara, Tomoaki Ikeda
  • Magnetic recording medium and process for the production thereof
    Patent number: 4390601
    Abstract: A magnetic recording medium comprising a non-magnetic support having thereon a vapor-deposited solid film of a ferromagnetic material formed by vacuum evaporation, on the surface of said magnetic recording medium being further provided a vapor deposited film of an organic lubricant, a macromolecular material or a mixture thereof.
    Type: Grant
    Filed: July 2, 1980
    Date of Patent: June 28, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Ono, Akira Nabara, Tomoaki Ikeda