Patents by Inventor Shiori Ohtake

Shiori Ohtake 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).

  • Sulfotransferase inhibitors
    Patent number: 8288139
    Abstract: A galactosamine derivative represented by the following formula (1): wherein R1, R2 and R5 each independently represents SO3? or H, and at least one of them represents SO3?; R3 represents H, acetyl or SO3?; R4 represents H, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted acyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; X represents O, S, NH or CH2; and represents an ? bond or a ? bond, and a sulfotransferase inhibitor comprising the derivative.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: October 16, 2012
    Assignee: Seikagaku Corporation
    Inventors: Osami Habuchi, Hirofumi Nakano, Toshihiko Sawada, Sonoko Fujii, Shiori Ohtake
  • Sulfotransferase Inhibitors
    Publication number: 20080318293
    Abstract: A galactosamine derivative represented by the following formula (1): wherein R1, R2 and R5 each independently represents SO3? or H, and at least one of them represents SO3?; R3 represents H, acetyl or SO3?; R4 represents H, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted acyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; X represents O, S, NH or CH2; and represents an ? bond or a ? bond, and a sulfotransferase inhibitor comprising the derivative.
    Type: Application
    Filed: August 19, 2008
    Publication date: December 25, 2008
    Applicant: SEIKAGAKU KOGYO KABUSHIKI KAISHA
    Inventors: Osami HABUCHI, Hirofumi Nakano, Toshihiko Sawada, Sonoko Fujii, Shiori Ohtake
  • Sulfotransferase inhibitors
    Publication number: 20060128659
    Abstract: A galactosamine derivative represented by the following formula (1): wherein R1, R2 and R5 each independently represents SO3? or H, and at least one of them represents SO3?; R3 represents H, acetyl or SO3?; R4 represents H, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted acyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; X represents O, S, NH or CH2; and represents an ? bond or a ? bond, and a sulfotransferase inhibitor comprising the derivative.
    Type: Application
    Filed: July 10, 2003
    Publication date: June 15, 2006
    Inventors: Osami Habuchi, Hirofumi Nakano, Toshihiko Sawada, Sonoko Fujii, Shiori Ohtake