Patents by Inventor Tadashi Domae

Tadashi Domae 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).

  • Defoamer compositions
    Patent number: 5244599
    Abstract: A defoamer composition comprising (A) an organopolysiloxane containing an oxyalkylene group having an appropriate hydrophilic-hydrophobic balance, (B) another organopolysiloxane containing an oxyalkylene group serving as a surface active agent for component (C), (C) a dimethylpolysiloxane for retaining defoaming power, and (D) a silica filler can maintain defoaming power for a long time, for example, when it is added to a developer for exposed photosensitive resin which is subject to shearing stresses in the wash-out step.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: September 14, 1993
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Nobuyuki Terae, Tadashi Domae