Patents by Inventor Syuichiro Shinohara

Syuichiro Shinohara 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).

  • Acrylic copolymer and skin protective
    Patent number: 4914140
    Abstract: An acrylic copolymer of ethyl acrylate and methacrylic acid wherein the weight ratio of ethyl acrylate to methacrylic acid is in a range between 75:25 and 95:5, containing therein a residual monomer content of 50 ppm or less, but substantially no surfactants, and which is useful as agents for protecting the skin and manufactured from the following essential components:a. an acrylic copolymer of ethyl acrylate and methacrylic acid wherein the weight ratio of ethyl acrylate to methacrylic acid is in a range between 75:25 and 95:5, containing therein residual monomers in an amount of 50 ppm or less, but substantially no surfactants--approximately 2 to 10%;b. cellulose derivative--approximately 0.2 to 2%; andc. a necessary amount of an aqueous alcohol to make the whole 100%.
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: April 3, 1990
    Assignees: Shinonogi and Co., Ltd., Nisshin Chemical Co., Ltd.
    Inventors: Izumi Saitoh, Shigeru Kido, Yoshio Sasaki, Syuichiro Shinohara
  • Acrylic copolymer and skin protective
    Patent number: 4874830
    Abstract: An acrylic copolymer of ethyl acrylate and methacrylic acid wherein the weight ratio of ethyl acrylate to methacrylic acid is in a range between 75:25 and 95:5, containing therein a residual monomer content of 50 ppm or less, but substantially no surfactants, and which is useful as agents for protecting the skin and manufactured from the following essential components:a. an acrylic copolymer of ethyl acrylate and methacrylic acid wherein the weight ratio of ethyl acrylate to methacrylic acid is in a range between 75:25 and 95:5, containing therein the residual monomers in an amount of 50 ppm or less, but substantially no surfactants . . . approximately 2 to 10%;b. cellulose derivative . . . approximately 0.2 to 2%; andc. a necessary amount of an aqueous alcohol to make the whole 100%.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: October 17, 1989
    Assignees: Shionogi & Co., Ltd., Nisshin Chemical Co., Ltd.
    Inventors: Izumi Saitoh, Shigeru Kido, Yoshio Sasaki, Syuichiro Shinohara