Patents by Inventor Michio Kawakami

Michio Kawakami 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).

  • Low modulus thermoplastic elastomeric polyester-polysiloxane block copolymers
    Patent number: 4659786
    Abstract: Polyester-polysiloxane block copolymers for dental uses are disclosed as low modulus thermoplastic elastomers. The copolymers comprise polycaprolactone residues and poly(dimethylsiloxane) .alpha.,.omega.-diol residues which are linked by ether bonds. The compounds exhibit the property of plasticity by heating and the property of original rubber elasticity by cooling again to room temperature.
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: April 21, 1987
    Assignee: Tohoku University
    Inventors: Michio Kawakami, Yoshima Araki, Kenkichi Murakami, Hidetoshi Oikawa, Michio Nakanishi, Makoto Hosotani