Patents by Inventor Mami Yoshino

Mami Yoshino 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).

  • Stainproofing oil for a heat fixing roller
    Patent number: 5568239
    Abstract: A stainproofing oil for a heat fixing roller, which consists essentially of a fluorosilicone compound having a silicon atom to which a monovalent fluorine-containing group selected from the formulae (1) to (3) is bonded:R.sub.f.sup.1 --X.sup.1 -- (1)R.sub.f.sup.2 --X.sup.2 --O--X.sup.3 -- (2)R.sub.f.sup.3 --X.sup.4 --O--X.sup.5 -- (3)wherein R.sub.f.sup.1 is a monovalent polyfluorohydrocarbon group, R.sub.f.sup.2 is a monovalent polyfluoroalkyl group containing an ether oxygen atom, R.sub.f.sup.3 is a monovalent polyfluorohydrocarbon group, and each of X.sup.1 to X.sup.5 independently is a bivalent hydrocarbon group.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: October 22, 1996
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yutaka Furukawa, Seisaku Kumai, Mami Yoshino