Patents by Inventor Motoo Izawa

Motoo Izawa 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).

  • Polyol-amino acid compounds having anti-helicobacter pylori activity
    Patent number: 6423869
    Abstract: A compound of the formula (I): wherein R1 represents an amino group which may be substituted; R2 represents a carboxy group which may be esterified or amidated; R3, R4, R5 and R6 each represent a hydroxy group which may be protected; Q represents an aryl group which may be substituted; or a salt thereof is disclosed. The compound (I) possesses ant-Helicobacter pylori activity, and is useful in the prevention or treatment of various diseases associated with Helicobacter bacteria, such as duodenal ulcer, gastric ulcer, chronic gastritis and cancer of the stomach.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: July 23, 2002
    Assignee: Takeda Chemical Industries, Inc.
    Inventors: Ken-ichiro Miyagawa, Shigetoshi Tsubotani, Masafumi Nakao, Yoshitaka Nakano, Keiji Kamiyama, Motoo Izawa, Yohko Akiyama, Yuji Nishikimi
  • Process for producing indolmycin
    Patent number: 6387687
    Abstract: A microorganism having indolmycin-producing ability and tryptophan analogue resistance is provided, and indolmycin or its salt can be produced efficiently by cultivating such microorganism in a medium to produce and accumulate indolmycin or its salt in the culture broth followed by recovering a product.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: May 14, 2002
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Akihiko Naotsuka, Motoo Izawa, Ken-ichiro Miyagawa