Patents by Inventor Osamu Ootani

Osamu Ootani 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).

  • Pyrazole derivatives and process for preparing the same
    Patent number: 3953467
    Abstract: Pyrazole derivatives represented by the formula ##SPC1##Wherein R, X, R.sub.2 and R.sub.3 are hereinafter defined, which are useful as analgesics and anti-inflammatory agents and a process for preparing the pyrazole derivatives are disclosed.
    Type: Grant
    Filed: April 17, 1974
    Date of Patent: April 27, 1976
    Assignee: Maruko Seiyaku Co., Ltd.
    Inventors: Hajime Fujimura, Mikio Hori, Osamu Ootani, Sachio Ohno, Tadashi Kitamikado, Kiyoshi Kato, Mitsuaki Nagasaka