Patents by Inventor Kazuya Sekihara

Kazuya Sekihara 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 AND PROCESS FOR PRODUCTION THEREOF
    Publication number: 20130310535
    Abstract: The present invention provides a polycarbonate resin containing a structural unit represented by general formula (I). In formula (I), R's independently represent a halogen atom, an alkyl group having 1-9 carbon atoms, an aryl group having 6-12 carbon atoms, an alkenyl group having 2-5 carbon atoms, an alkoxy group having 1-5 carbon atoms, or an aralkyl group having 7-17 carbon atoms; n's independently mean the number of R's which substitute on the benzene ring and independently represent an integer of 0-4; Y represents an alkylene group having 1-4 carbon atoms; and p represents an integer of 0-4.
    Type: Application
    Filed: January 23, 2012
    Publication date: November 21, 2013
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Noriyuki Kato, Yuki Kumagai, Shu Yoshida, Takashi Ishii, Kazuaki Kaneko, Kazuya Sekihara