Patents by Inventor Taihei Shibazaki

Taihei Shibazaki 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 compositions containing N-(3,4-dimethoxycinnamoyl) anthranilic acid
    Patent number: 5356620
    Abstract: In preferred embodiments this invention provides a pharmaceutical composition and a method for the treatment of allergic conjunctivitis or allergic rhinitis. The composition is an aqueous solution containing N-(3,4-dimethoxycinnamoyl)anthranilic acid or a pharmaceutically acceptable salt thereof as an active ingredient. The composition additionally contains as essential components polyvinylpyrrolidone, a basic compound and a surface active agent in prescribed quantities, and the composition has a pH of about 6.5-8.5.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: October 18, 1994
    Assignees: Kissei Pharmaceutical Co. Ltd., Nitten Ophthalmic Research Institute Company
    Inventors: Tokihiko Yamamoto, Taihei Shibazaki, Yukiyoshi Ajisawa, Ryoji Yamamoto, Yukihiko Kinoshita