Patents by Inventor Tomokazu Ueki

Tomokazu Ueki 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).

  • Arylsulfatase from streptomyces
    Patent number: 5270196
    Abstract: The present invention relates to an arylsulfatase of microbial origin. The enzyme may be linked to an antibody against a tumor-associated antigen and the resulting conjugate used in conjuction with a sulfated prodrug of a 4'-demethylepipodophyllotoxin glucoside derivative, particularly etoposide in cancer chemotherapy.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: December 14, 1993
    Assignee: Bristol-Myers Squibb Company
    Inventors: Yosuke Sawada, Tomokazu Ueki, Satoshi Yamamoto, Koji Tomita, Yasuo Fukagawa, Toshikazu Oki
  • Process for the preparation of .alpha.-glucosidase inhibitor, pradimicin Q
    Patent number: 5217877
    Abstract: The present invention relates to a novel .alpha.-glucosidase inhibitor, pradimicin Q, having the following formula ##STR1## and its pharmaceutically acceptable base salts.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: June 8, 1993
    Assignee: Bristol-Myers Squibb Company
    Inventors: Yosuke Sawada, Tomokazu Ueki, Takashi Tsuno, Toshikazu Oki
  • Novel alpha-glucosidase inhibitor, pradimicin Q
    Patent number: 5091418
    Abstract: The present invention relates to a novel .alpha.-glucosidase inhibitor, pradimicin Q, having the following formula ##STR1## and its pharmaceutically acceptable base salts.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: February 25, 1992
    Assignee: Bristol-Myers Squibb Company
    Inventors: Yosuke Sawada, Tomokazu Ueki, Takashi Tsuno, Toshikazu Oki