Patents by Inventor Osamu Kaieda

Osamu Kaieda 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).

  • 5,6,7,8-tetrafluoroanthraquinone derivatives
    Patent number: 4647411
    Abstract: A 5,6,7,8-tetrafluoroanthraquinone derivative represented by the general formula I: ##STR1## wherein R.sup.1 and R.sup.2 independently stand for --OH or ##STR2## (where R.sup.3 and R.sup.4 independently stand for hydrogen an alkyl of 1 to 4 carbon atoms or a phenyl) and X and Y independently hydrogen atom or a halogen atom.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: March 3, 1987
    Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.
    Inventors: Teijiro Kitao, Masaru Matsuoka, Osamu Kaieda
  • 2,3,5,6-Tetrafluorophenyl (meth) acrylates and method for production thereof
    Patent number: 4572805
    Abstract: 2,3,5,6-Tetrafluorophenyl (meth)acrylates represented by the general formula I: ##STR1## wherein R is H or CH.sub.3 and X is H or CN are disclosed. These compounds are obtained by the reaction of 4-cyano-substituted or unsubstituted 2,3,5,6-tetrafluorophenols with (meth)acrylic acid chloride.
    Type: Grant
    Filed: March 5, 1985
    Date of Patent: February 25, 1986
    Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.
    Inventors: Osamu Kaieda, Koichi Hirota, Isao Okitaka, Toshiaki Nakamura