Patents by Inventor Masayoshi Ohkuro

Masayoshi Ohkuro 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).

  • Publication number: 20090156589
    Abstract: A compound represented by the following general formula (1) or (100), a salt thereof or a hydrate of the foregoing has excellent cell adhesion inhibitory action and cell infiltration inhibitory action. wherein R10 represents 5- to 10-membered cycloalkyl etc. optionally substituted with hydroxyl etc., R30, R31 and R32 may be the same or different and each represents hydrogen etc., R40 represents C1-10 alkyl etc. optionally substituted with hydroxyl etc., n represents an integer of 0, 1 or 2, X1 represents CH or nitrogen, and R20, R21, R22 and R23 may be the same or different and each represents hydrogen etc.
    Type: Application
    Filed: June 14, 2006
    Publication date: June 18, 2009
    Applicant: EISAI R&D MANAGEMENT CO., LTD.
    Inventors: Tetsuya Kawahara, Makoto Kotake, Naoki Yoneda, Shinsuke Hirota, Masayoshi Ohkuro
  • Patent number: 7425554
    Abstract: In one aspect, the present invention provides compounds having formula (1) or (100), a salt thereof or a hydrate of the foregoing, which compounds exhibit excellent cell adhesion inhibitory action or cell infiltration inhibitory action, and are useful as therapeutic or prophylactic agents for various inflammatory diseases and autoimmune diseases associated with adhesion and infiltration of leukocytes, such as inflammatory bowel disease (particularly ulcerative colitis or Crohn's disease), irritable bowel syndrome; rheumatoid arthritis, psoriasis, multiple sclerosis, asthma and atopic dermatitis. wherein R10 represents optionally substituted cycloalkyl, etc., R20-23 represent hydrogen, alkyl, alkoxy, etc., R30-32 represent hydrogen, alkyl, oxo, etc., and R40 represents optionally substituted alkyl, etc.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: September 16, 2008
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Tetsuya Kawahara, Makoto Kotake, Naoki Yoneda, Shinsuke Hirota, Masayoshi Ohkuro
  • Patent number: 7410971
    Abstract: A compound represented by the following general formula (1) or (100), a salt thereof or a hydrate of the foregoing has excellent cell adhesion inhibitory action or cell infiltration inhibitory action, and is useful as a therapeutic or prophylactic agent for various inflammatory diseases and autoimmune diseases associated with adhesion and infiltration of leukocytes, such as inflammatory bowel disease (particularly ulcerative colitis or Crohn's disease), irritable bowel syndrome, rheumatoid arthritis, psoriasis, multiple sclerosis, asthma and atopic dermatitis. wherein R10 represents optionally substituted cycloalkyl, etc., R20-23 represent hydrogen, alkyl, alkoxy, etc., R30-32 represent hydrogen, alkyl, oxo, etc., and R40 represents optionally substituted alkyl, etc.
    Type: Grant
    Filed: December 24, 2004
    Date of Patent: August 12, 2008
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Tetsuya Kawahara, Makoto Kotake, Naoki Yoneda, Shinsuke Hirota, Masayoshi Ohkuro
  • Publication number: 20070112002
    Abstract: A compound represented by the following general formula (1) or (100), a salt thereof or a hydrate of the foregoing has excellent cell adhesion inhibitory action or cell infiltration inhibitory action, and is useful as a therapeutic or prophylactic agent for various inflammatory diseases and autoimmune diseases associated with adhesion and infiltration of leukocytes, such as inflammatory bowel disease (particularly ulcerative colitis or Crohn's disease), irritable bowel syndrome, rheumatoid arthritis, psoriasis, multiple sclerosis, asthma and atopic dermatitis. wherein R10 represents optionally substituted cycloalkyl, etc., R20-23 represent hydrogen, alkyl, alkoxy, etc., R30-32 represent hydrogen, alkyl, oxo, etc., and R40 represents optionally substituted alkyl, etc.
    Type: Application
    Filed: December 24, 2004
    Publication date: May 17, 2007
    Inventors: Tetsuya Kawahara, Makoto Kotake, Naoki Yoneda, Shinsuke Hirota, Masayoshi Ohkuro
  • Publication number: 20060281747
    Abstract: A compound represented by the following general formula (1) or (100), a salt thereof or a hydrate of the foregoing has excellent cell adhesion inhibitory action and cell infiltration inhibitory action. wherein R10 represents 5- to 10-membered cycloalkyl etc. optionally substituted with hydroxyl etc., R30, R31 and R32 may be the same or different and each represents hydrogen etc., R40 represents C1-10 alkyl etc. optionally substituted with hydroxyl etc., n represents an integer of 0, 1 or 2, X1 represents CH or nitrogen, and R20, R21, R22 and R23 may be the same or different and each represents hydrogen etc.
    Type: Application
    Filed: June 14, 2006
    Publication date: December 14, 2006
    Inventors: Tetsuya Kawahara, Makoto Kotake, Naoki Yoneda, Shinsuke Hirota, Masayoshi Ohkuro
  • Publication number: 20060276465
    Abstract: A compound represented by the following general formula (1) or (100), a salt thereof or a hydrate of the foregoing has excellent cell adhesion inhibitory action or cell infiltration inhibitory action, and is useful as a therapeutic or prophylactic agent for various inflammatory diseases and autoimmune diseases associated with adhesion and infiltration of leukocytes, such as inflammatory bowel disease (particularly ulcerative colitis or Crohn's disease), irritable bowel syndrome, rheumatoid arthritis, psoriasis, multiple sclerosis, asthma and atopic dermatitis. wherein R10 represents optionally substituted cycloalkyl, etc., R20-23 represent hydrogen, alkyl, alkoxy, etc., R30-32 represent hydrogen, alkyl, oxo, etc., and R40 represents optionally substituted alkyl, etc.
    Type: Application
    Filed: June 23, 2006
    Publication date: December 7, 2006
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Tetsuya Kawahara, Makoto Kotake, Naoki Yoneda, Shinsuke Hirota, Masayoshi Ohkuro
  • Publication number: 20050261291
    Abstract: In one aspect, the present invention provides compounds having formula (1) or (100), a salt thereof or a hydrate of the foregoing, which compounds exhibit excellent cell adhesion inhibitory action or cell infiltration inhibitory action, and are useful as therapeutic or prophylactic agents for various inflammatory diseases and autoimmune diseases associated with adhesion and infiltration of leukocytes, such as inflammatory bowel disease (particularly ulcerative colitis or Crohn's disease), irritable bowel syndrome; rheumatoid arthritis, psoriasis, multiple sclerosis, asthma and atopic dermatitis. wherein R10 represents optionally substituted cycloalkyl, etc., R20-23 represent hydrogen, alkyl, alkoxy, etc., R30-32 represent hydrogen, alkyl, oxo, etc., and R40 represents optionally substituted alkyl, etc.
    Type: Application
    Filed: December 27, 2004
    Publication date: November 24, 2005
    Inventors: Tetsuya Kawahara, Makoto Kotake, Naoki Yoneda, Shinsuke Hirota, Masayoshi Ohkuro
  • Publication number: 20040092737
    Abstract: Benzopiperidine derivatives represented by formula (I), salts thereof or hydrates thereof, processes for producing the same and drugs comprising the same: 1
    Type: Application
    Filed: September 20, 2002
    Publication date: May 13, 2004
    Applicant: Eisai Co., Ltd.
    Inventors: Toshihiko Kaneko, Richard Clark, Norihito Ohi, Fumihiro Ozaki, Tetsuya Kawahara, Atsushi Kamada, Kazuo Okano, Hiromitsu Yokohama, Kenzo Muramoto, Tohru Arai, Masayoshi Ohkuro, Osamu Takenaka, Jiro Sonoda
  • Patent number: 6518423
    Abstract: Benzopiperidine derivatives represented by formula (I), salts thereof or hydrates thereof, processes for producing the same and drugs comprising the same: wherein the variables are as described in the specification. These compounds are useful as drugs efficacious in the prevention and treatment of these various inflammatory diseases and immunologic diseases, such as rheumatoid arthritis, atopic dermatitis, psoriasis, asthma, and rejection reaction accompanying organ transplantation.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: February 11, 2003
    Assignee: Eisai Co., Ltd.
    Inventors: Toshihiko Kaneko, Richard Clark, Norihito Ohi, Fumihiro Ozaki, Tetsuya Kawahara, Atsushi Kamada, Kazuo Okano, Hiromitsu Yokohama, Kenzo Muramoto, Tohru Arai, Masayoshi Ohkuro, Osamu Takenaka, Jiro Sonoda