Patents by Inventor Takaaki Okita

Takaaki Okita 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).

  • Process for cephem prodrug esters
    Patent number: 4935508
    Abstract: A process for the selective formation of oximino o-protected derivatives of lower alkyl 2-(2-aminothiazol-4-yl)-2-oximinoacetates, and their use in the acylation of 7-amino-cephalosporin compounds is disclosed.
    Type: Grant
    Filed: August 23, 1988
    Date of Patent: June 19, 1990
    Assignee: Bristol-Myers Company
    Inventors: Hajime Kamachi, Takaaki Okita, Satsuki Okuyama, Takayuki Naito