Patents by Inventor Kouhei Yazawa

Kouhei Yazawa 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).

  • Amidine derivatives and platelet aggregation inhibitor containing the same
    Patent number: 5719145
    Abstract: The invention relates to a substituted amidine derivative which has an excellent platelet aggregation inhibiting action on the basis of fibrinogen antagonism and is particularly excellent in effectiveness on oral administration, and the platelet aggregation inhibitor containing the substituted amidine derivative of the invention as an effective ingredient is effective for prevention and treatment of thrombosis, and restenosis or reocclusion after percutaneous transluminal coronary angioplasty or percutaneous transluminal coronary recanalization.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: February 17, 1998
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Hiroyuki Yamashita, Kunio Okumura, Toshiyuki Shimazaki, Akihito Kanematsu, Yoji Aoki, Yuki Nakajima, Kouhei Yazawa, Kenji Kibayashi
  • Bicyclic compound and platelet aggregation inhibitor containing the same
    Patent number: 5629321
    Abstract: The invention relates to a novel compound which is represented by the formula (1) and has an excellent platelet aggregation inhibiting action based on fibrinogen antagonism. The platelet aggregation inhibitor containing the compound of the formula (1) as an effective ingredient are effective for prevention and curing of thrombosis and restenosis or reocclusion after percutaneous transluminal coronary angioplasty or percutaneous transluminal coronary recanalization.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: May 13, 1997
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Kunio Okumura, Isao Yokoyama, Toshiyuki Shimazaki, Michihiko Miyamoto, Hiroyuki Yamashita, Kenji Kibayashi, Takanori Yutaka, Kouhei Yazawa