Patents by Inventor Yumiko Yanagisawa

Yumiko Yanagisawa 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).

  • Indole derivatives exhibiting chymase-inhibitory activities and process for preparation thereof
    Patent number: 6852734
    Abstract: According to this invention, there is provided an indole derivative having the general formula (I) wherein A is an oxygen atom or a nitrogen atom which nitrogen atom is optionally substituted with an alkyl group, and (i) R1 and R2 each stand for a hydrogen atom or an alkyl group, independently, or (ii) R1 and R2 as taken together form a cycloalkyl group or an aromatic ring, or (iii) R1 and R2 as taken together form a heterocyclic ring, and R3 is a hydrogen atom, a (C1-C10)alkyl group or others, R4 is a substituted alkyl group and R5 is a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group and so on, as novel compounds by a novel chemical synthetic process. The indole derivative of formula (I) exhibits a useful chymase inhibitory activity.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: February 8, 2005
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Yasuo Yamamoto, Kenzo Hariyama, Yumiko Yanagisawa, Sojiro Shiokawa, Takumi Takeyasu, Osami Takenouchi, Hidenori Kasai
  • Novel indole derivatives exhibiting chymase-inhibitory activities and process for preparation thereof
    Publication number: 20040058963
    Abstract: According to this invention, there is provided an indole derivative having the general formula (I) 1
    Type: Application
    Filed: January 10, 2003
    Publication date: March 25, 2004
    Inventors: Yasuo Yamamoto, Kenzo Hariyama, Yumiko Yanagisawa, Sojiro Shiokawa, Takumi Takeyasu, Osami Takenouchi, Hidenori Kasai