Patents by Inventor Shinya Yamagami

Shinya Yamagami 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).

  • Polymer and applications thereof
    Patent number: 6255400
    Abstract: A polymer (B) is prepared by polymerizing one or more vinyl monomers (c) in the presence of a polymer (A) prepared by polymerizing one or more vinyl monomers (a) selected from the group consisting of vinyl monomers represented by the general formula (1): wherein R1 represents a hydrogen atom or a lower alkyl with 1 to 3 carbon atoms and n is an integer of 1 to 8 and their salts with one or more vinyl monomers (b) which are co-polymerizable with the vinyl monomer components (a).
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: July 3, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroshi Itoh, Susumu Oyama, Takashi Yodoya, Kenji Tsuboi, Tsugio Matsubara, Kenichi Nakamura, Hirotoshi Doki, Shinya Yamagami, Toshiki Oyanagi, Kenzo Seita