Patents by Inventor Takahiro Kuramochi

Takahiro Kuramochi 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: 8106190
    Abstract: To provide a novel and excellent agent for treating or preventing nociceptive pain, neuropathic pain, cancer pain, headache, bladder function disorder and the like, based on the inhibitory action on the capsaicin receptor VR1 activation. The present invention was accomplished by confirming that a benzamide derivative characterized by the possession of a benzene ring in which a single ring is condensed on the nitrogen atom of amido group and possession of a lower alkylamino or an amino group substituted with a ring group at the neighboring position of said amido group has a strong inhibitory action on VR1 activation and excellent pharmacological actions based on this and by finding that it can become an excellent agent for treating or preventing VR1-involved diseases such as nociceptive pain, neuropathic pain, cancer pain, headache, bladder function disorder and the like.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: January 31, 2012
    Assignee: Astellas Pharma Inc.
    Inventors: Takahiro Kuramochi, Ryoji Hirabayashi, Yohei Koganemaru, Ryosuke Munakata, Koichi Yonezawa, Tetsuo Kiso
  • 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
  • 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
  • Publication number: 20090233900
    Abstract: To provide a novel and excellent agent for treating or preventing nociceptive pain, neuropathic pain, cancer pain, headache, bladder function disorder and the like, based on the inhibitory action on the capsaicin receptor VR1 activation. The present invention was accomplished by confirming that a benzamide derivative characterized by the possession of a benzene ring in which a single ring is condensed on the nitrogen atom of amido group and possession of a lower alkylamino or an amino group substituted with a ring group at the neighboring position of said amido group has a strong inhibitory action on VR1 activation and excellent pharmacological actions based on this and by finding that it can become an excellent agent for treating or preventing VR1-involved diseases such as nociceptive pain, neuropathic pain, cancer pain, headache, bladder function disorder and the like.
    Type: Application
    Filed: November 29, 2006
    Publication date: September 17, 2009
    Applicant: Astellas Pharma Inc.
    Inventors: Takahiro Kuramochi, Ryoji Hirabayashi, Yohei Koganemaru, Ryosuke Munakata, Koichi Yonezawa, 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: 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: 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: 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