Patents by Inventor Tamio Hikosaka

Tamio Hikosaka 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).

  • Controlled-release multiple units pharmaceutical formulation
    Patent number: 4772475
    Abstract: A pharmaceutical controlled-release individual unit or multiple units formulation in which the individual unit comprises a granulation product obtained by adding a release controlling agent to a mixture of a physiologically active substance and units-forming substance(s) and granulating and resultant mixture, said granulation product (granules) being substantially not disintegrated but gradually releasing the physiologically active substance in the gastrointestinal tract.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: September 20, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Muneo Fukui, Kouji Tomuro, Shigeru Masuyama, Atsushi Kajiyama, Tamio Hikosaka, Masayoshi Aruga, Saburo Higuchi, Yoshiaki Soeishi