Patents by Inventor Masao Yagasaki

Masao Yagasaki 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).

  • Vinyl acetate resin emulsion composition
    Patent number: 4963611
    Abstract: Vinyl acetate resin emulsion composition produced by the addition of a water soluble compound having alcoholic OH group during emulsion-polymerization or emulsion-copolymerization reaction to vinyl acetate resin emulsion which is obtained by emulsion-polymerization or emulsion-copolymerization of vinyl acetate under the presence of polyvinyl alcohol.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: October 16, 1990
    Assignee: Konishi Co., Ltd.
    Inventors: Shigeru Nagasawa, Hisao Noziri, Yoshizumi Nakai, Yasuaki Araki, Eizo Sakamoto, Masao Yagasaki, Mutsumi Kozima