Patents by Inventor Takeshi Hayama

Takeshi Hayama 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).

  • Endothelin antagonistic substance
    Patent number: 5614498
    Abstract: Peptides having the formula: ##STR1## inhibit the binding of endothelin to its ET.sub.B receptor and are useful in treating diseases associated with excess production or secretion of endothelin.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: March 25, 1997
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Kiyofumi Ishikawa, Takehiro Fukami, Takeshi Hayama, Kenji Niiyama, Toshio Nagase, Toshiaki Mase, Kagari Fujita, Masaki Ihara, Fumihiko Ikemoto, Mitsuo Yano, Masaru Nishikibe