Patents by Inventor Shiro Shirakura

Shiro Shirakura 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).

  • Pyridine derivatives
    Patent number: 4971964
    Abstract: A pyridine derivative represented by formula (I): ##STR1## wherein the symbols are as defined in the specification, which exhibits selective, potential, and long-lasting inhibitory activity on biosynthesis of thromboxane A.sub.2 and is useful in the treatment and prevention of a broad range of diseases.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: November 20, 1990
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Koji Suzuki, Obase Hiroyuki, Akira Karasawa, Shiro Shirakura, Kubo Shizuoka, Ichiro Miki, Akio Ishii