Patents by Inventor Takaai Negishi

Takaai Negishi 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).

  • Resist material
    Patent number: 5558971
    Abstract: A resist material comprising (a) a terpolymer, (b) a photoacid generator, and (c) a solvent has high light sensitivity, heat resistance, adhesiveness, resolution, etc., and is suitable for forming a pattern of rectangular shape.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: September 24, 1996
    Assignees: Wako Pure Chemical Industries, Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Fumiyoshi Urano, Takaai Negishi, Akiko Katsuyama, Masayuki Endo