Patents by Inventor Seijiro Akamatsu

Seijiro Akamatsu 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).

  • Patent number: 7855198
    Abstract: There is provided a compound having a capsaicin receptor VR1 inhibitory activity and useful as a therapeutic agent for various pains including inflammatory pain and neurogenic pain, migraine, cluster headache, bladder diseases including overactive bladder, and the like. A benzamide derivative or a salt thereof wherein a benzene ring is attached to a D ring (a monocyclic or bicyclic hydrocarbon ring or a monocyclic or bicyclic heteroaromatic ring) through an amide bond, the benzene ring is directly bonded to an E ring (a monocyclic or bicyclic hydrocarbon ring or a monocyclic or bicyclic heteroaromatic ring), and the benzene ring is further bonded to A (an amino moiety, a monocyclic or bicyclic heterocycle) through L (a lower alkylene).
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: December 21, 2010
    Assignee: Astellas Pharma Inc.
    Inventors: Takahiro Kuramochi, Norio Asai, Kazuhiro Ikegai, Seijiro Akamatsu, Hironori Harada, Noriko Ishikawa, Shohei Shirakami, Satoshi Miyamoto, Toshihiro Watanabe, Tetsuo Kiso
  • Patent number: 7807664
    Abstract: A novel 4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepine derivative or a pharmaceutically acceptable salt thereof, which is useful as an agent for treating or preventing nocturia and/or diabetes insipidus, is provided.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: October 5, 2010
    Assignee: Astella Pharma Inc.
    Inventors: Hiroyuki Koshio, Issei Tsukamoto, Akio Kakefuda, Seijiro Akamatsu, Chikashi Saitoh
  • Publication number: 20090270365
    Abstract: There is provided a compound having a capsaicin receptor VR1 inhibitory activity and useful as a therapeutic agent for various pains including inflammatory pain and neurogenic pain, migraine, cluster headache, bladder diseases including overactive bladder, and the like. A benzamide derivative or a salt thereof wherein a benzene ring is attached to a D ring (a monocyclic or bicyclic hydrocarbon ring or a monocyclic or bicyclic heteroaromatic ring) through an amide bond, the benzene ring is directly bonded to an E ring (a monocyclic or bicyclic hydrocarbon ring or a monocyclic or bicyclic heteroaromatic ring), and the benzene ring is further bonded to A (an amino moiety, a monocyclic or bicyclic heterocycle) through L (a lower alkylene).
    Type: Application
    Filed: July 2, 2009
    Publication date: October 29, 2009
    Applicant: Astellas Pharma Inc.
    Inventors: Takahiro KURAMOCHI, Norio ASAI, Kazuhiro IKEGAI, Seijiro AKAMATSU, Hironori HARADA, Noriko ISHIKAWA, Shohei SHIRAKAMI, Satoshi MIYAMOTO, Toshihiro WATANABE, Tetsuo KISO
  • Patent number: 7585878
    Abstract: There is provided a compound having a capsaicin receptor VR1 inhibitory activity and useful as a therapeutic agent for various pains including inflammatory pain and neurogenic pain, migraine, cluster headache, bladder diseases including overactive bladder, and the like. A benzamide derivative or a salt thereof wherein a benzene ring is attached to a D ring (a monocyclic or bicyclic hydrocarbon ring or a monocyclic or bicyclic heteroaromatic ring) through an amide bond, the benzene ring is directly bonded to an E ring (a monocyclic or bicyclic hydrocarbon ring or a monocyclic or bicyclic heteroaromatic ring), and the benzene ring is further bonded to A (an amino moiety, a monocyclic or bicyclic heterocycle) through L (a lower alkylene).
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: September 8, 2009
    Assignee: Astellas Pharma Inc.
    Inventors: Takahiro Kuramochi, Norio Asai, Kazuhiro Ikegai, Seijiro Akamatsu, Hironori Harada, Noriko Ishikawa, Shohei Shirakami, Satoshi Miyamoto, Toshihiro Watanabe, Tetsuo Kiso
  • Publication number: 20070167429
    Abstract: A novel 4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepine derivative or a pharmaceutically acceptable salt thereof, which is useful as an agent for treating or preventing nocturia and/or diabetes insipidus, is provided.
    Type: Application
    Filed: November 14, 2006
    Publication date: July 19, 2007
    Inventors: Hiroyuki Koshio, Issei Tsukamoto, Akio Kakefuda, Seijiro Akamatsu, Chikashi Saitoh
  • Publication number: 20070167444
    Abstract: There is provided a compound having a capsaicin receptor VR1 inhibitory activity and useful as a therapeutic agent for various pains including inflammatory pain and neurogenic pain, migraine, cluster headache, bladder diseases including overactive bladder, and the like. A benzamide derivative or a salt thereof wherein a benzene ring is attached to a D ring (a monocyclic or bicyclic hydrocarbon ring or a monocyclic or bicyclic heteroaromatic ring) through an amide bond, the benzene ring is directly bonded to an E ring (a monocyclic or bicyclic hydrocarbon ring or a monocyclic or bicyclic heteroaromatic ring), and the benzene ring is further bonded to A (an amino moiety, a monocyclic or bicyclic heterocycle) through L (a lower alkylene).
    Type: Application
    Filed: June 10, 2004
    Publication date: July 19, 2007
    Inventors: Takahiro Kuramochi, Norio Asai, Kazuhiro Ikegai, Seijiro Akamatsu, Hironori Harada, Noriko Ishikawa, Shohei Shirakami, Satoshi Miyamoto, Toshihiro Watanabe, Tetsuo Kiso
  • Patent number: 7183271
    Abstract: A novel 4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepine derivative or a pharmaceutically acceptable salt thereof, which is useful as an agent for treating or preventing nocturia and/or diabetes insipidus, is provided.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: February 27, 2007
    Assignee: Astellas Pharma Inc.
    Inventors: Hiroyuki Koshio, Issei Tsukamoto, Akio Kakefuda, Seijiro Akamatsu, Chikashi Saitoh
  • Patent number: 7169772
    Abstract: 4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepine derivatives, which have excellent arginine vasopressin V2 activity and are useful for a drug for the treatment of central diabetes insipidus and/or nocturia.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: January 30, 2007
    Assignee: Astellas Pharma Inc.
    Inventors: Hiroyuki Koshio, Issei Tsukamoto, Takahiro Kuramochi, Seijiro Akamatsu, Chikashi Saitoh
  • Publication number: 20060122170
    Abstract: A novel 4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepine derivative or a pharmaceutically acceptable salt thereof, which is useful as an agent for treating or preventing nocturia and/or diabetes insipidus, is provided.
    Type: Application
    Filed: April 26, 2004
    Publication date: June 8, 2006
    Applicant: ASTELLA PHARMA INC.
    Inventors: Hiroyuki Koshio, Issei Tsukamoto, Akio Kakefuda, Seijiro Akamatsu, Chikashi Saitoh
  • Publication number: 20050004103
    Abstract: 4,4-difluoro-1,2,3,4-tetrahydro-5H-1-benzazepine derivatives, which have excellent arginine vasopressin V2 activity and are useful for a drug for the treatment of central diabetes insipidus and/or nocturia.
    Type: Application
    Filed: November 13, 2002
    Publication date: January 6, 2005
    Inventors: Hiroyuki Koshio, Issei Tsukamoto, Takahiro Kuramochi, Seijiro Akamatsu, Chikashi Saitoh
  • Patent number: 6057324
    Abstract: A substituted-amidinobenzene derivative of the following general formula (I) or a salt thereof, and a pharmaceutical composition comprising said derivative or a salt thereof and a pharmaceutically acceptable carrier. ##STR1## (the symbols in the above formula have the following meanings: R.sup.1 : a group which can be converted into an amidino group in vivo;R.sup.2 and R.sup.3 : the same or different and each represents a carboxyl group or a group which can be converted into a carboxyl group in vivo;X.sup.1 and X.sup.2 : the same or different and each represents a lower alkylene group;m: 0, 1 or 2;n: 0 or 1, provided that n=1 when m=0.They have GPIIb/IIIa receptor antagonizing activity and are useful as medicines for ameliorating ischemic cardiac disorders, adminicula in cardiosurgery operations or in vascular surgery operations, medicines for ameliorating cerebrovascular disorders, And medicines for ameliorating peripheral artery disorders.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: May 2, 2000
    Assignees: Yamanouchi Pharmaceutical Co., Ltd, Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Yuzo Matsumoto, Seijiro Akamatsu, Masato Ichihara, Tomihisa Kawasaki, Seiji Kaku, Isao Yanagisawa
  • Patent number: 5773442
    Abstract: Disclosed are benzamidine derivatives of the following general formula (I), salts thereof, hydrates thereof or solvates thereof, and pharmaceutical compositions comprising the derivatives, salts thereof, hydrates thereof or solvates thereof along with pharmaceutically-acceptable carriers. ##STR1## The derivatives and their compositions have GPIIb/IIIa receptor antagonistic activity and are useful for the treatment and prophylaxis of vascular system disorders as medicines for ameliorating ischemic cardiac disorders, adminicula in cardiosurgery operations or in vascular surgery operations, medicines for ameliorating cerebrovascular disorders, and medicines for ameliorating peripheral artery disorders.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: June 30, 1998
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Seijiro Akamatsu, Yuzo Matsumoto, Masato Ichihara, Tomihisa Kawasaki, Seiji Kaku, Isao Yanagisawa
  • Patent number: 5473100
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: December 5, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yasuo Isomura, Seijiro Akamatsu, Toru Yoden, Masafumi Kudou, Akira Suga
  • Patent number: 5442110
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: August 15, 1995
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yasuo Isomura, Seijiro Akamatsu, Toru Yoden, Masafumi Kudou, Akira Suga