Patents by Inventor Akira Uekusa

Akira Uekusa 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).

  • Hydrogenated liquid petroleum resin and hot melt pressure-sensitive adhesive composition containing the same
    Patent number: 5256750
    Abstract: A hydrogenated liquid petroleum resin obtained by hydrogenating an aromatic liquid petroleum resin having a structure in which aromatic rings are linked by the medium of a methylene group, and a hot melt pressure-sensitive adhesive composition containing the same.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: October 26, 1993
    Assignee: Mitsubishi Oil Co., Ltd.
    Inventors: Hajime Yoshida, Akira Uekusa, Takashi Satoh, Ryoji Ohnishi