Patents by Inventor Yoichiro Tani

Yoichiro Tani 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 preparing sialic acid derivatives
    Patent number: 4797477
    Abstract: The present invention relates to a new process for preparing 3-O-(sodium(5-acetamide-3,5-dideoxy-alpha-D-glycero-D-galacto-2-noneuro pyranosyl)onate-1,2-di-O-tetradecyl-Sn-glycerol (3) consisting essentially of hydrolyzing a 3-O-(C.sub.1-5 alkyl(5-acetamide-4,7,8,9-tetra-O-acetyl-3,5-di-deoxy-alpha-D-glycero-D-ga lacto-2-noneuropyranosyl)onate)-1,2-di-O-tetradecyl-Sn-glycerol (1) in a single step, in an aqueous lower aliphatic alcohol solution of an alkali metal hydroxide.
    Type: Grant
    Filed: August 11, 1987
    Date of Patent: January 10, 1989
    Assignee: Mect Corporation
    Inventors: Shoji Yoshimura, Yoichiro Tani, Youzi Matsuzaki, Masayoshi Ito, Yoshiyasu Shitori, Tomoya Ogawa