Patents by Inventor Takuya JITSUKAWA

Takuya JITSUKAWA 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).

  • Patent number: 10414848
    Abstract: A living radical polymerization initiator represented by the following: wherein, R1 represents an aromatic, an alkylcarbonyl, an alkoxycarbonyl, an aminocarbonyl, an alkylaminocarbonyl, a dialkylaminocarbonyl, an arylcarbonyl, an alkylsulfonyl, an aryl sulfonyl or combinations thereof; R2, R3, R4 and R5 are a hydrogen, an aliphatic, an aromatic, an alkylcarbonyl, an alkoxycarbonyl, an aminocarbonyl, an alkylaminocarbonyl, a dialkylaminocarbonyl, an arylcarbonyl, a carboxy, an alkylsulfonyl or an aryl sulfonyl; X and Y are a halogen; m and n are an integer of 1 or more, and are non-symmetrical so that X and Y have different reactivities to initiate a living radical polymerization.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: September 17, 2019
    Assignees: KYOTO UNIVERSITY, GOOD SHIGEN CO., LTD
    Inventors: Atsushi Goto, Michihiko Miyamoto, Hiroto Komatsu, Yu Yamaguchi, Takuya Jitsukawa
  • Publication number: 20170306073
    Abstract: A living radical polymerization initiator represented by the following: wherein, R1 represents an aromatic, an alkylcarbonyl, an alkoxycarbonyl, an aminocarbonyl, an alkylaminocarbonyl, a dialkylaminocarbonyl, an arylcarbonyl, an alkylsulfonyl, an aryl sulfonyl or combinations thereof; R2, R3, R4 and R5 are a hydrogen, an aliphatic, an aromatic, an alkylcarbonyl, an alkoxycarbonyl, an aminocarbonyl, an alkylaminocarbonyl, a dialkylaminocarbonyl, an arylcarbonyl, a carboxy, an alkylsulfonyl or an aryl sulfonyl; X and Y are a halogen; m and n are an integer of 1 or more, and are non-symmetrical so that X and Y have different reactivities to initiate a living radical polymerization.
    Type: Application
    Filed: August 7, 2015
    Publication date: October 26, 2017
    Applicants: KYOTO UNIVERSITY, GODO SHIGEN CO., LTD.
    Inventors: Atsushi GOTO, Michihiko MIYAMOTO, Hiroto KOMATSU, Yu YAMAGUCHI, Takuya JITSUKAWA