Patents by Inventor Reiko Izumi

Reiko Izumi 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).

  • Patent number: 4933182
    Abstract: A pharmaceutical composition for treating periodontal diseases which comprises one or more of therapeutically active ingredients dispersed in a carrier, characterized in that said carrier consists of(A) water soluble polymer, and(B) polymeric particles having a limited solubility in water,said particles being dispersed in said water soluble polymer.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: June 12, 1990
    Assignee: Rohto Pharmaceutical Co. Ltd.
    Inventors: Kiyotsugu Higashi, Shigeru Kametaka, Reiko Izumi, Katsuhiko Morisaki, Shin'ichi Hayashi
  • Patent number: 4906670
    Abstract: A pharmaceutical composition useful for treatment of periodontal diseases which comprises one or more active ingredients effective for the treatment of periodontal diseases, characterized in that said active ingredient or ingredients are dispersed in collagen.
    Type: Grant
    Filed: March 1, 1989
    Date of Patent: March 6, 1990
    Assignee: Rohto Pharmaceutical Co., Ltd.
    Inventors: Kiyotsugu Higashi, Shigeru Kametaka, Reiko Izumi, Katsuhiko Morisaki, Shin'ichi Hayashi
  • Patent number: D426150
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: June 6, 2000
    Assignee: Suntory Limited
    Inventors: Reiko Izumi, Hiroyuki Ono