Patents by Inventor Chiharu Tanabe

Chiharu Tanabe 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).

  • N-acyl anthranilic acid derivative or salt thereof
    Patent number: 8492582
    Abstract: The invention relates to an N-acyl anthranilic acid derivative or it's salt having collagen production inhibitory action.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: July 23, 2013
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Junichi Yokotani, Arihiro Takatori, Yukie Tada, Minori Yanai, Hiroshi Kato, Yoichi Taniguchi, Chiharu Tanabe
  • N-ACYL ANTHRANILIC ACID DERIVATIVE OR SALT THEREOF
    Publication number: 20110275797
    Abstract: An N-acyl anthranilic acid derivative represented by general formula (1) or a salt thereof is useful for prevention or treatment of diseases associated with excessive production of collagen. (In the formula, R1 represents a carboxyl group or the like; R2 represents a hydrogen atom or the like; R3 represents an optionally substituted aryl group or the like; X1 represents a carbonyl group; X2 represents a bonding hand; X3 represents a bonding hand; X4 represents a bonding hand or the like; and A represents an optionally substituted phenyl group or the like.
    Type: Application
    Filed: January 29, 2010
    Publication date: November 10, 2011
    Applicant: Toyama Chemical Co., Ltd.
    Inventors: Junichi Yokotani, Arihiro Takatori, Yukie Tada, Minori Yanai, Hiroshi Kato, Yoichi Taniguchi, Chiharu Tanabe