Patents by Inventor Masaki Kirahara

Masaki Kirahara 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).

  • Pyrazolopyridine type mevalonolactones useful as pharmaeuticals
    Patent number: 5024999
    Abstract: The present invention provides a compound of the formula: ##STR1## process for their production, pharmaceutical compositions containing them and their pharmaceutical uses, and intermediates useful for their production and processes for the production of such intermediates.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: June 18, 1991
    Assignee: Nissan Chemical Industries Ltd.
    Inventors: Yoshihiro Fujikawa, Mikio Suzuki, Hiroshi Iwasaki, Mitsuaki Sakashita, Masaki Kirahara