Patents by Inventor Yoshihisa Koga

Yoshihisa Koga 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: 20120115827
    Abstract: The present invention relates to a novel 3-aminobenzamide, compound represented by the following formula which effectively inhibits vanilloid receptor subtype 1 (VR1) activity (wherein, for example, R1 is a C1-6 alkyl group which may be substituted, R2 is a hydrogen atom, a C1-6 alkyl group or a C1-6 alkoxy group which may be substituted, R3 is a hydrogen atom or a C1-6 alkyl group, R4 is a C1-6 alkyl group, a C1-6 alkoxy group, or a halo C1-6 alkyl group, m is an integer of 1 to 5 and P is a carbon or hetero ring) or a pharmaceutically acceptable salt thereof. The pharmaceutical composition comprising as active ingredients the 3-aminobenzamide, compound or a pharmaceutically acceptable salt thereof is useful for treating diseases involved in VR1 activity such as pain, acute pain, chronic pain, neuropathicpain, rheumatoid arthritis pain, and neuralgia.
    Type: Application
    Filed: June 7, 2011
    Publication date: May 10, 2012
    Applicant: Japan Tobacco Inc.
    Inventors: Yoshihisa Koga, Shinji Yata, Takashi Watanabe, Takuya Matsuo, Masahiro Sakata, Wataru Kondo
  • Publication number: 20110212952
    Abstract: A 3,4-dihydrobenzoxazine compound of the present invention is represented by the following formula [1] (wherein X is a nitrogen atom or CR3; R1 is a hydrogen atom or a halogen atom; R2 is a C1-6 alkoxy group which may be substituted with the same or different 1 to 5 substituents selected from a halogen atom and a hydroxyl group; and R3 is a halogen atom. However, R1 is a halogen atom when X is CR3). This compound is effective in treating diseases to which the vanilloid receptor subtype 1 (VR1) activity is involved, such as pain, etc.
    Type: Application
    Filed: February 1, 2011
    Publication date: September 1, 2011
    Applicant: Japan Tobacco Inc.
    Inventors: Yoshihisa Koga, Shinji Yata, Takayuki Yamasaki, Tatsuya Matsumoto, Masahiro Sakata, Wataru Kondo, Yoshikazu Hori
  • Patent number: 8008292
    Abstract: To provide a compound having an excellent inhibitory effect on vanilloid receptor subtype 1 (VR1) activity which is effective in treating diseases to which the vanilloid receptor subtype 1 (VR1) activity is involved, such as pain, acute pain, chronic pain, neuropathic pain, rheumatoid arthritis pain, neuralgia, etc. and a pharmaceutical composition containing the compound.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: August 30, 2011
    Assignee: Japan Tobacco Inc.
    Inventors: Yoshihisa Koga, Shinji Yata, Takashi Watanabe, Takuya Matsuo, Takayuki Yamasaki, Masahiro Sakata, Wataru Kondo, Hidekazu Ozeki, Yoshikazu Hori
  • Patent number: 7906508
    Abstract: A 3,4-dihydrobenzoxazine compound of the present invention is represented by the following formula [1] (wherein X is a nitrogen atom or CR3; R1 is a hydrogen atom or a halogen atom; R2 is a C1-6 alkoxy group which may be substituted with the same or different 1 to 5 substituents selected from a halogen atom and a hydroxyl group; and R3 is a halogen atom. However, R1 is a halogen atom when X is CR3). This compound is effective in treating diseases to which the vanilloid receptor subtype 1 (VR1) activity is involved, such as pain, etc.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: March 15, 2011
    Assignee: Japan Tobacco Inc.
    Inventors: Yoshihisa Koga, Shinji Yata, Takayuki Yamasaki, Tatsuya Matsumoto, Masahiro Sakata, Wataru Kondo, Yoshikazu Hori
  • Publication number: 20100022523
    Abstract: The present invention relates to a novel 3-aminobenzamide compound represented by the following formula which effectively inhibits vanilloid receptor subtype 1 (VR1) activity (wherein, for example, R1 is a C1-6 alkyl group which may be substituted, R2 is a hydrogen atom, a C1-6 alkyl group or a C1-6 alkoxy group which may be substituted, R3 is a hydrogen atom or a C1-6 alkyl group, R4 is a C1-6 alkyl group, a C1-6 alkoxy group, or a halo C1-6 alkyl group, m is an integer of 1 to 5 and P is a carbon or hetero ring) or a pharmaceutically acceptable salt thereof. The pharmaceutical composition comprising as active ingredients the 3-aminobenzamide compound or a pharmaceutically acceptable salt thereof is useful for treating diseases involved in VR1 activity such as pain, acute pain, chronic pain, neuropathic pain, rheumatoid arthritis pain, and neuralgia.
    Type: Application
    Filed: April 27, 2009
    Publication date: January 28, 2010
    Applicant: Japan Tobacco Inc.
    Inventors: YOSHIHISA KOGA, SHINJI YATA, TAKASHI WATANABE, TAKUYA MATSUO, MASAHIRO SAKATA, WATARU KONDO
  • Publication number: 20070149517
    Abstract: A 3,4-dihydrobenzoxazine compound of the present invention is represented by the following formula [1] (wherein X is a nitrogen atom or CR3; R1 is a hydrogen atom or a halogen atom; R2 is a C1-6 alkoxy group which may be substituted with the same or different 1 to 5 substituents selected from a halogen atom and a hydroxyl group; and R3 is a halogen atom. However, R1 is a halogen atom when X is CR3). This compound is effective in treating diseases to which the vanilloid receptor subtype 1 (VR1) activity is involved, such as pain, etc.
    Type: Application
    Filed: December 28, 2006
    Publication date: June 28, 2007
    Applicant: Japan Tobacco Inc.
    Inventors: Yoshihisa Koga, Shinji Yata, Takayuki Yamasaki, Tatsuya Matsumoto, Masahiro Sakata, Wataru Kondo, Yoshikazu Hori
  • Publication number: 20060035939
    Abstract: The present invention relates to a novel 3-aminobenzamide compound represented by the following formula which effectively inhibits vanilloid receptor subtype 1 (VR1) activity (wherein, for example, R1 is a C1-6 alkyl group which may be substituted, R2 is a hydrogen atom, a C1-6 alkyl group or a C1-6 alkoxy group which may be substituted, R3 is a hydrogen atom or a C1-6 alkyl group, R4 is a C1-6 alkyl group, a C1-6 alkoxy group, or a halo C1-6 alkyl group, m is an integer of 1 to 5 and P is a carbon or hetero ring) or a pharmaceutically acceptable salt thereof. The pharmaceutical composition comprising as active ingredients the 3-aminobenzamide compound or a pharmaceutically acceptable salt thereof is useful for treating diseases involved in VR1 activity such as pain, acute pain, chronic pain, neuropathic pain, rheumatoid arthritis pain, and neuralgia.
    Type: Application
    Filed: July 14, 2005
    Publication date: February 16, 2006
    Applicant: Japan Tobacco Inc.
    Inventors: Yoshihisa Koga, Shinji Yata, Takashi Watanabe, Takuya Matsuo, Masahiro Sakata, Wataru Kondo
  • Publication number: 20060035882
    Abstract: To provide a compound having an excellent inhibitory effect on vanilloid receptor subtype 1 (VR1) activity which is effective in treating diseases to which the vanilloid receptor subtype 1 (VR1) activity is involved, such as pain, acute pain, chronic pain, neuropathic pain, rheumatoid arthritis pain, neuralgia, etc. and a pharmaceutical composition containing the compound.
    Type: Application
    Filed: July 15, 2005
    Publication date: February 16, 2006
    Applicant: Japan Tobacco Inc.
    Inventors: Yoshihisa Koga, Shinji Yata, Takashi Watanabe, Takuya Matsuo, Takayuki Yamasaki, Masahiro Sakata, Wataru Kondo, Hidekazu Ozeki, Yoshikazu Hori
  • Patent number: 5807850
    Abstract: Therapeutic agents for osteoporosis comprising, as an active ingredient, a triazepine compound of the formula ?I! ##STR1## wherein R.sup.1 is aryl or heteroaryl; R.sup.2 is hydrogen atom, hydroxy, halogen atom or lower alkyl; R.sup.4 is hydrogen atom or halogen atom, or R.sup.2 and R.sup.4 form carbonyl combinedly together with the carbon atom to which they bond; R.sup.3 is hydrogen atom, lower alkyl, lower alkoxy, cycloalkyl, aryl, heteroaryl, --X--Y wherein X is --(CH.sub.2).sub.m --, --CO--, --COCH.sub.2 --, --NH--, --NHCH.sub.2 --, --CH.sub.2 NH--, --CH.sub.2 NHCO--, --OCH.sub.2 --, --(CH.sub.2).sub.n O-- or --CH.sub.2 S-- and Y is halogen atom, cycloallyl, aryl or heteroaryl; and A is benzene ring or thiophene ring, or a salt thereof, novel triazepine compounds, and intermediate triazepine compounds for producing these triazepine compounds. The triazepine compounds of the formula ?I! have superior bone resorption-inhibitory action and are useful as therapeutic agents for osteoporosis.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: September 15, 1998
    Assignee: Japan Tobacco, Inc.
    Inventors: Takeshi Nakamura, Yoshihisa Koga, Masanori Shindo