Patents by Inventor Tomohisa Nakada

Tomohisa Nakada 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).

  • Biphenylamidine derivatives
    Patent number: 6706745
    Abstract: The present invention relates to a biphenylamidine derivative of the general formula (1): or a pharmaceutically acceptable salt thereof, which is a novel compound functioning as a clinically applicable FXa inhibitor.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: March 16, 2004
    Assignee: Teijin Limited
    Inventors: Takayuki Hara, Tomohisa Nakada, Yasunobu Takano, Satoshi Sugiura, Takaharu Tsutsumi, Yoshiharu Takazawa, Reiko Takarada
  • Cyanobiphenyl derivatives
    Publication number: 20030203935
    Abstract: Intermediates represented by the following formula: 1
    Type: Application
    Filed: March 24, 2003
    Publication date: October 30, 2003
    Applicant: TEIJIN LIMITED
    Inventors: Tomohisa Nakada, Takayuki Hara, Yasunobu Takano
  • Cyanobiphenyl derivatives
    Patent number: 6538137
    Abstract: Intermediates represented by the following formula: (wherein R1 is a hydrogen atom, an alkyl group, an aryl group, an aralkyl group or the like; X is a carboxyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an aralkoxycarbonyl group, a formyl group, —CH2—Y, —CHZ1Z2, —CH(OR4)OR5 or the like), in the synthesis of biphenylamidine derivatives to be used as inhibitors for an activated blood coagulation factor X, and a process for preparing the same.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: March 25, 2003
    Assignee: Teijin Limited
    Inventors: Tomohisa Nakada, Takayuki Hara, Yasunobu Takano
  • Biphenylamidine derivatives
    Patent number: 6348478
    Abstract: The present invention is a biphenylamidine derivative represented by the formula (1) or a pharmaceutically acceptable derivative thereof: and the biphenylamidine derivative or the pharmaceutically acceptable derivative thereof is a novel compound which can be used as a clinically applicable FXa inhibitor.
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: February 19, 2002
    Assignee: Teijin Limited
    Inventors: Takayuki Hara, Tomohisa Nakada, Yasunobu Takano, Satoshi Sugiura, Takaharu Tsutsumi, Yoshiharu Takazawa, Reiko Takarada