Patents by Inventor Takashi Kanesaki

Takashi Kanesaki 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).

  • Alpha-olefin-aromatic vinyl copolymer
    Patent number: 6939929
    Abstract: The ?-olefin-aromatic vinyl compound copolymer of the present invention is obtained by using a transition metal compound represented by the following Formula (1) and a promoter component to carry out copolymerization, and it is a novel ?-olefin-aromatic vinyl compound copolymer having a low alternating property and a high blocking property, particularly a high blocking property related to the aromatic vinyl compound: wherein A1 and A2 represent a cyclopentadienyl group, a substituted cyclopentadienyl group or the like; Y1 and Y2 represent a substituted or unsubstituted alkylene group or the like, and at least one of them is the substituted or unsubstituted alkylene group; M1 represents titanium or the like; X1 and X2 represent a hydrogen atom, a halogen atom or the like.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: September 6, 2005
    Assignee: Idemitsu Kosan Co. Ltd.
    Inventors: Kiyohiko Yokota, Noriyuki Tani, Takashi Kanesaki, Nobuhide Ishihara
  • Alpha-olefin-aromatic vinyl copolymer
    Publication number: 20020161142
    Abstract: The &agr;-olefin-aromatic vinyl compound copolymer of the present invention is obtained by using a transition metal compound represented by the following Formula (1) and a promoter component to carry out copolymerization, and it is a novel &agr;-olefin-aromatic vinyl compound copolymer having a low alternating property and a high blocking property, particularly a high blocking property related to the aromatic vinyl compound: 1
    Type: Application
    Filed: February 12, 2002
    Publication date: October 31, 2002
    Inventors: Kiyohiko Yokota, Noriyuki Tani, Takashi Kanesaki, Nobuhide Ishihara