Patents by Inventor Shigeru Kametaka

Shigeru Kametaka 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).

  • Pharmaceutical composition for periodontal diseases
    Patent number: 4981693
    Abstract: A pharmaceutical composition for treating periodontal diseases which comprises one or more of therapeutically active ingredients admixed with a polymer capable of dissolving in an aqueous medium of pH 4.0 or higher.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: January 1, 1991
    Assignee: Rohto Pharmaceutical Co., Ltd.
    Inventors: Kiyotsugu Higashi, Shigeru Kametaka, Katsuhiko Morisaki, Shin'ichi Hayashi
  • Method for treating or preventing locally periodontal disease
    Patent number: 4965262
    Abstract: A method for treating or preventing periodontal disease which comprises administering ofloxacin or salts thereof locally to periodontal tissue are disclosed. The method is excellent on the treatment of periodontal disease in small dose without disturbance of bacterial flora.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: October 23, 1990
    Assignees: Rohto Pharmaceutical Co., Ltd., Daiichi Pharmaceutical Co., Ltd.
    Inventors: Shigeru Kametaka, Tadaaki Miyazaki, Shinichi Hayashi, Akira Handa, Kinya Kameda
  • Pharmaceutical composition for treating periodontal
    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
  • Pharmaceutical composition for the treatment of periodontal disease
    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
  • Pharmaceutical composition for the prevention of dental caries
    Patent number: 4606911
    Abstract: A pharmaceutical composition for the prevention of dental caries which comprises as essential component(s) one or more of pentacyclic acid triterpenes of the formula: ##STR1## wherein R.sub.1 represents CH.sub.3, CHO or CH.sub.2 OH, R.sub.2 and R.sub.3 independently represent CH.sub.3 or COOH, R.sub.4 represents H, CH.sub.3, COOH or COOCH.sub.3, R.sub.5 and R.sub.6 independently represent H, CH.sub.3 or OH, and A represents two Hs or O, and their salts.
    Type: Grant
    Filed: July 15, 1985
    Date of Patent: August 19, 1986
    Assignee: Rohto Pharmaceutical Co. Ltd.
    Inventors: Shin'ichi Hayashi, Akiyoshi Yoshida, Shigeru Kametaka, Tetsuo Koike
  • Method for enhancing a fungus-lytic activity of .beta.-1,3-D-glucanase
    Patent number: 4576914
    Abstract: A method of enhancing a fungus-lytic activity of .beta.-1,3-D-glucanase which comprises using said glucanase in the presence of one or more of the activators selected from the group consisting of sodium lauroylsarcosinate, polyoxyethylene alkylphenyl ether, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylenealkyl ether, benzalkonium chloride, ammonium chloride, chlorhexidine glucuronate, methylparaben, propylparaben, trypsin, Pronase.RTM. and Alcalase.RTM..A method of enhancing a fungus-lytic activity of .beta.-1,3-D-glucanase which comprises using two .beta.-1,3-D-glucanases of different origins is also provided.
    Type: Grant
    Filed: October 17, 1983
    Date of Patent: March 18, 1986
    Assignee: Rohto Pharmaceutical Co., Ltd.
    Inventors: Akiyoshi Yoshida, Shigeru Kametaka, Shin'ichi Hayashi
  • Cleaning composition for artificial dentures
    Patent number: 4486330
    Abstract: A cleaning composition for an artificial denture which comprises .beta.-1,3-glucanase as an essential component together with one or more of suitable carriers.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: December 4, 1984
    Assignee: Rohto Pharmaceutical Co., Ltd.
    Inventors: Akiyoshi Yoshida, Shigeru Kametaka, Shin'ichi Hayashi