Patents by Inventor Kunihiko Shiina

Kunihiko Shiina 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 producing biocozamycin benzoate
    Patent number: 5525722
    Abstract: A process for producing bicozamycin benzoate is provided which comprises reacting bicozamycin with benzoic anhydride in the presence of 4-dimethylaminopyridine. The process provided for producing bicozamycin benzoate gives improved yields as compared with the prior art process.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: June 11, 1996
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Hitoshi Nakamura, Ryoichi Kawakami, Kunihiko Shiina