Patents by Inventor Noriyasu Ohtsuki

Noriyasu Ohtsuki 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).

  • Lubricative polymer containing liquid and method of forming film of lubricative polymer
    Patent number: 6156824
    Abstract: There is provided a lubricating polymer-containing liquid which comprises a film-forming lubricating polymer, preferably a fluoropolymer, and a liquid medium predominantly comprised of cyclic hydrofluorocarbon wherein said lubricating polymer is dissolved or dispersed. A lubricative polymer film of good performance is formed by coating, for example, a magnetic recording hard disk, an ink jet recording head or a cleaning blade of an image-forming device with the lubricating polymer containing liquid, and then removing the liquid medium.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: December 5, 2000
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Toshiro Yamada, Kuniaki Goto, Noriyasu Ohtsuki