Patents Represented by Law Firm Sughrue, Mion, Zinn, Macpeak and Seas 38
  • Magnetic recording medium
    Patent number: 4444842
    Abstract: A magnetic recording medium is disclosed which is comprised of a non-magnetic support base having a magnetic layer on one surface and a silicone oil layer formed on the opposite surface. The silicone oil layer does not produce dropouts and eliminates scraping and therefore eliminates dust particles that collect and build up in the area of the magnetic head. The silicone layer is formed from a silicone-containing compound having a viscosity of at least 6,000 centistokes at 25.degree. C.
    Type: Grant
    Filed: March 16, 1982
    Date of Patent: April 24, 1984
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobutaka Yamaguchi, Nobuo Tsuji, Yasutoshi Okuzawa, Norio Nasu, Masaaki Fujiyama