Patents by Inventor Masahide Shidou

Masahide Shidou 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).

  • Polycarbonate resin laminate
    Patent number: 9522519
    Abstract: To provide a polycarbonate resin laminate having the surface hardness remarkably improved and being excellent in color and impact resistance.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: December 20, 2016
    Assignees: Mitsubishi Chemical Corporation, Mitsubishi Engineering-Plastics Corporation
    Inventors: Tatsuya Hitomi, Ryouhei Nishihara, Kiyotaka Hirano, Yoshitaka Shiraishi, Masanori Yamamoto, Tomonari Yokoyama, Masahide Shidou
  • Polycarbonate resin, polycarbonate resin composition and molded article thereof
    Patent number: 9193825
    Abstract: The present invention relates to a polycarbonate resin having, in the molecule, at least a structural unit represented by the following formula (1), wherein the terminal hydroxyl group concentration of the polycarbonate resin is 300 ppm or less: wherein each of R1 and R2 independently represents a substituted or unsubstituted alkyl group having a carbon number of 1 to 20 or a substituted or unsubstituted aryl group, and X represents a single bond, a carbonyl group, a substituted or unsubstituted alkylidene group, a substituted or unsubstituted sulfur atom, or an oxygen atom.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: November 24, 2015
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masahide Shidou, Tatsuya Hitomi
  • POLYCARBONATE RESIN, POLYCARBONATE RESIN COMPOSITION AND MOLDED ARTICLE THEREOF
    Publication number: 20150018510
    Abstract: The present invention relates to a polycarbonate resin having, in the molecule, at least a structural unit represented by the following formula (1), wherein the terminal hydroxyl group concentration of the polycarbonate resin is 300 ppm or less: wherein each of R1 and R2 independently represents a substituted or unsubstituted alkyl group having a carbon number of 1 to 20 or a substituted or unsubstituted aryl group, and X represents a single bond, a carbonyl group, a substituted or unsubstituted alkylidene group, a substituted or unsubstituted sulfur atom, or an oxygen atom.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 15, 2015
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masahide SHIDOU, Tatsuya Hitomi
  • POLYCARBONATE RESIN LAMINATE
    Publication number: 20140147651
    Abstract: To provide a polycarbonate resin laminate having the surface hardness remarkably improved and being excellent in color and impact resistance.
    Type: Application
    Filed: February 3, 2014
    Publication date: May 29, 2014
    Applicants: MITSUBISHI ENGINEERING-PLASTICS CORPORATION, MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tatsuya HITOMI, Ryouhei Nishihara, Kiyotaka Hirano, Yoshitaka Shiraishi, Masanori Yamamoto, Tomonari Yokoyama, Masahide Shidou