Patents by Inventor by Satoshi Ueki, legal representative

by Satoshi Ueki, legal representative 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).

  • Block copolymer containing tetrahydrofuran block
    Patent number: 4705830
    Abstract: A block copolymer is disclosed which includes an ethylene-propylene copolymer segment (A) and a tetrahydrofuran segment (B). The weight ratio of (A) to (B) is 5/95 to 95/5, and the block copolymer has a number-average molecular weight of about 1,000 to about 1,000,000.
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: November 10, 1987
    Assignee: Toa Nenryo Kogyo Kabushiki Kaisha
    Inventors: Tokuo Makishima, deceased, by Nobuko Makishima, legal representative, by Satoshi Ueki, legal representative, by Chichiro Imai, legal representative