Patents by Inventor Hirotake Naganuma

Hirotake Naganuma 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).

  • Rectal motilin preparation
    Patent number: 5011824
    Abstract: A motilin preparation in the form of a rectal suppository containing motilin together with a pH controller capable of adjusting the pH value of the intrarectal fluid to 8.0 to 10.0, which is highly useful as a rectal suppository.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: April 30, 1991
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Tomoaki Masada, Yasuhiko Ueno, Eiji Hayakawa, Hirotake Naganuma, Mitsuru Terajima, Tokuyuki Kuroda, Katsuichi Shuto, Shunji Ichikawa