Patents by Inventor Yoichi Nagamura

Yoichi Nagamura 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).

  • 2-aminoethanesulfonic acid zinc complex compound
    Patent number: 5489609
    Abstract: The present invention covers 2-aminoethanesulfonic acid zinc complex compound as represented by the formula [I]: ##STR1## as well as a process for producing the same, and an anti-hepatitis agent, liver function improving agent and anti-ulcer agent. As compared with 2-aminoethanesulfonic acid, glutathione and glycyrrhizin, the compound (I) of the present invention exhibits improved anti-hepatitis activity, and also strengthens detoxicating activity toward various compounds to thereby develop liver function improving activity, while the said compound shows excellent anti-ulcer activity but greatly lowered toxicity.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: February 6, 1996
    Assignee: Zaidan Hoijn Seisan Kaihatsu Kagaku Kenkyusho
    Inventors: Hajime Fujimura, Takahiro Yabuuchi, Teruo Tanaka, Yoichi Nagamura
  • 2-aminoethanesulfonic acid zinc complex
    Patent number: 5475028
    Abstract: The present invention relates to a 2-aminoethanesulfonic acid zinc complex represented by the following formula: ##STR1## (wherein M is an alkali metal atom), to a process for producing the said complex from 2-aminoethanesulfonic acid and to use of the said complex as an anti-hepatitis agent, liver function improving agent and anti-ulcer agent. The said complex exhibits not only improved physiological activities such as anti-hepatitis activity, suppressory activity against liver-function disorder and anti-ulcer activity but also protective and restorative activity for the digestive tract.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: December 12, 1995
    Assignee: Zaidan Hojin Seisan Kaihatsu Kagaku Kenkyusho
    Inventors: Hajime Fujimura, Takahiro Yabuuchi, Teruo Tanaka, Yoichi Nagamura
  • Antigen membranes for use in syphilis diagnosis and syphilis diagnosis apparatus using such membranes
    Patent number: 4081334
    Abstract: An antigen membrane for syphilis diagnosis comprises cardiolipin immobilized in a polymer maxtrix. The membranes are used in syphilis diagnosis and in an apparatus for syphilis diagnosis.
    Type: Grant
    Filed: March 18, 1977
    Date of Patent: March 28, 1978
    Assignee: Nippon Chemiphar Co., Ltd.
    Inventors: Shuichi Suzuki, Masuo Aizawa, Isao Ishigur, Rikio Shinohara, Yoichi Nagamura