Patents by Inventor Naotoshi Yamamura

Naotoshi Yamamura 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).

  • Acid addition salts of hydropyridine derivatives
    Patent number: 6693115
    Abstract: Acid addition salts of 2-acetoxy-5-(&agr;-cyclopropyl-carbonyl-2-fluorobenzyl)-4,5,6,7-tetrahydrothieno[3,2-c]-pyridine. The acid addition salts of tetrahydrothienopyridine derivatives of the present invention exhibit excellent oral absorption, metabolization into the active compound, and platelet aggregation-inhibiting effects, low toxicity, and excellent storage and handling stabilities, and are useful as medicaments, preferably preventive or therapeutic agents (particularly therapeutic agents) for diseases caused by a thrombus or an embolus, still more preferably preventive or therapeutic agents (particularly therapeutic agents) for thrombosis or embolism.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: February 17, 2004
    Assignees: Sankyo Company, Limited, Ube Industries Ltd.
    Inventors: Fumitoshi Asai, Taketoshi Ogawa, Hideo Naganuma, Naotoshi Yamamura, Teruhiko Inoue, Kazuyoshi Nakamura
  • Acid addition salts of hydropyridine derivatives
    Publication number: 20030134872
    Abstract: Acid addition salts of 2-acetoxy-5-(&agr;-cyclopropyl-carbonyl-2-fluorobenzyl)-4,5,6,7-tetrahydrothieno[3,2-c]-pyridine. The acid addition salts of tetrahydrothienopyridine derivatives of the present invention exhibit excellent oral absorption, metabolization into the active compound, and platelet aggregation-inhibiting effects, low toxicity, and excellent storage and handling stabilities, and are useful as medicaments, preferably preventive or therapeutic agents (particularly therapeutic agents) for diseases caused by a thrombus or an embolus, still more preferably preventive or therapeutic agents (particularly therapeutic agents) for thrombosis or embolism.
    Type: Application
    Filed: December 26, 2002
    Publication date: July 17, 2003
    Applicant: SANKYO COMPANY, LIMITED
    Inventors: Fumitoshi Asai, Taketoshi Ogawa, Hideo Naganuma, Naotoshi Yamamura, Teruhiko Inoue, Kazuyoshi Nakamura