Patents by Inventor Junko Ohnaka

Junko Ohnaka 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).

  • Polyolefin resin composition
    Patent number: 5085895
    Abstract: The present invention relates to the use of a polyolefin resin composition comprising a random copolymer of an alkenylsilane compound and an .alpha.-olefin compound as a material for adhesion or a coating material.
    Type: Grant
    Filed: July 18, 1990
    Date of Patent: February 4, 1992
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tadashi Asanuma, Kazuhiko Yamamoto, Junko Ohnaka, Yoshiko Tokura
  • .alpha.-olefin block copolymers and processes for preparing the same
    Patent number: 5045597
    Abstract: The present invention relates to .alpha.-olefin block copolymers excellent in adhesive property to polar group-containing polymers and metals as well as in rigidity comprising an alkenylsilane and an .alpha.-olefin and processes for preparing the same, materials for adhesion and for easy coating comprising the same.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: September 3, 1991
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tadashi Asanuma, Kazuhiko Yamamoto, Junko Ohnaka, Yoshiko Tokura