Patents by Inventor Iwao Takamuro

Iwao Takamuro 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: 8778628
    Abstract: An arylalkylamine compound is represented by the following formula [I-e] or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: July 15, 2014
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Hiroshi Miyazaki, Junko Okabe, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
  • Patent number: 8759387
    Abstract: The present invention relates to an arylalkylamine compound represented by the following formula [I] or a pharmaceutically acceptable salt thereof, a process for preparing the same, and use of the above-mentioned compound as an activating compound (CaSR agonist) of a Ca sensing receptor, a pharmaceutical composition containing the above-mentioned compound as an effective ingredient, etc.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: June 24, 2014
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Hiroshi Miyazaki, Junko Okabe, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
  • Patent number: 8703721
    Abstract: The present invention relates to an arylalkylamine compound represented by the following formula [I] or a pharmaceutically acceptable salt thereof, a process for preparing the same, and use of the above-mentioned compound as an activating compound (CaSR agonist) of a Ca sensing receptor, a pharmaceutical composition containing the above-mentioned compound as an effective ingredient, etc.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: April 22, 2014
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Hiroshi Miyazaki, Junko Tsubakimoto, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
  • Publication number: 20140080770
    Abstract: An arylalkylamine compound is represented by the following formula [I-e] or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: June 17, 2013
    Publication date: March 20, 2014
    Applicant: Mitsubishi Tanabe Pharma Corporation
    Inventors: Hiroshi MIYAZAKI, Junko OKABE, Kosuke YASUDA, Iwao TAKAMURO, Osamu SAKURAI, Tetsuya YANAGIDA, Yutaka HISADA
  • Patent number: 8492111
    Abstract: The present invention relates to an arylalkylamine compound represented by the following formula [I] or a pharmaceutically acceptable salt thereof, a process for preparing the same, and use of the above-mentioned compound as an activating compound (CaSR agonist) of a Ca sensing receptor, a pharmaceutical composition containing the above-mentioned compound as an effective ingredient, etc.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: July 23, 2013
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Hiroshi Miyazaki, Junko Tsubakimoto, Kosuke Yasuda, Iwao Takamuro, Osamu Sakural, Tetsuya Yanagida, Yataka Hisada
  • Patent number: 8362274
    Abstract: The present invention relates to an arylalkylamine compound represented by the following formula [I] or a pharmaceutically acceptable salt thereof, a process for preparing the same, and use of the above-mentioned compound as an activating compound (CaSR agonist) of a Ca sensing receptor, a pharmaceutical composition containing the above-mentioned compound as an effective ingredient, etc.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: January 29, 2013
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Hiroshi Miyazaki, Junko Tsubakimoto, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
  • Patent number: 8314247
    Abstract: A hydrazone derivative of formula [I]: wherein Ring A is aryl or heteroaryl, Ring T is heteroaryl or heterocycle, R1 and R2 are independently hydrogen atom, halogen atom, cycloalkylsulfonyl, etc., R3 and R4 combine each other together with the adjacent nitrogen atom to form substituted or unsubstituted heterocycle, R5 is hydrogen atom, halogen atom, cyano, nitro, tetrazolyl, etc., and R6 is hydrogen atom, etc.; or a pharmaceutically acceptable salt thereof is useful as a glucokinase activation agent.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: November 20, 2012
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Iwao Takamuro, Kazutoshi Sugawara, Hiroshi Sugama
  • Publication number: 20110218160
    Abstract: The present invention relates to an arylalkylamine compound represented by the following formula [I] or a pharmaceutically acceptable salt thereof, a process for preparing the same, and use of the above-mentioned compound as an activating compound (CaSR agonist) of a Ca sensing receptor, a pharmaceutical composition containing the above-mentioned compound as an effective ingredient, etc.
    Type: Application
    Filed: May 12, 2011
    Publication date: September 8, 2011
    Inventors: Hiroshi Miyazaki, Junko Tsubakimoto, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
  • Publication number: 20100249049
    Abstract: The present invention relates to an arylalkylamine compound represented by the following formula [I] or a pharmaceutically acceptable salt thereof, a process for preparing the same, and use of the above-mentioned compound as an activating compound (CaSR agonist) of a Ca sensing receptor, a pharmaceutical composition containing the above-mentioned compound as an effective ingredient, etc.
    Type: Application
    Filed: May 7, 2010
    Publication date: September 30, 2010
    Inventors: Hiroshi MIYAZAKI, Junko TSUBAKIMOTO, Kosuke YASUDA, Iwao TAKAMURO, Osamu SAKURAL, Tetsuya YANAGIDA, Yataka HISADA
  • Publication number: 20100099662
    Abstract: A hydrazone derivative of formula [I]: wherein Ring A is aryl or heteroaryl, Ring T is heteroaryl or heterocycle, R1 and R2 are independently hydrogen atom, halogen atom, cycloalkylsulfonyl, etc., R3 and R4 combine each other together with the adjacent nitrogen atom to form substituted or unsubstituted heterocycle, R5 is hydrogen atom, halogen atom, cyano, nitro, tetrazolyl, etc., and R6 is hydrogen atom, etc.; or a pharmaceutically acceptable salt thereof is useful as a glucokinase activation agent.
    Type: Application
    Filed: January 9, 2008
    Publication date: April 22, 2010
    Inventors: Iwao Takamuro, Kazutoshi Sugawara, Hiroshi Sugama
  • Publication number: 20090234117
    Abstract: A pyrazolopyrimidine derivative of the formula [I] wherein R1 is an optionally substituted aromatic ring group, an optionally substituted lower alkyl group or an optionally substituted amino group; R2 is an optionally substituted aromatic ring group; R3 is an optionally substituted lower alkyl group; and R4 is a hydrogen atom, a lower alkyl group, a halogen atom, a nitro group or an amino group; or a pharmaceutically acceptable salt thereof is useful as an antagonist of CRF receptor.
    Type: Application
    Filed: May 24, 2006
    Publication date: September 17, 2009
    Inventors: Toshihiko Kashiwagi, Iwao Takamuro, Yumi Watanabe, Michihisa Yato
  • Patent number: 7384952
    Abstract: The present invention provides a novel pyrazolopyrimidine compound of the formula [I]: wherein R? is (A) a substituted aryl group, (B) an optionally substituted nitrogen-containing aliphatic heteromonocyclic group, (C) a substituted cyclo-lower alkyl group, (D) an optionally substituted amino group, or (E) a substituted heteroaryl group, R2 is (a) an optionally substituted heteroaryl group or (b) an optionally substituted aryl group, Y is a single bond, a lower alkylene group or a lower alkenylene group, Z is a group of the formula: —CO—, —CH2-, —SO2- or a group of the formula [II]: Q is a lower alkylene group, and q is an integer of 0 or 1 or a pharmaceutically acceptable sait thereof, which has a small conductance potassium channel (SK channel) blocking activity and is useful as a medicament and a process for preparing the same
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: June 10, 2008
    Assignee: Mitsubishi Tanabe Pharma Corporation
    Inventors: Iwao Takamuro, Yasuo Sekine, Yasunori Tsuboi, Kouji Nogi, Hiroyuki Taniguchi
  • Publication number: 20080081817
    Abstract: A novel nitrogenous fused bicyclic compound represented by the following general formula [1] or a pharmacologically acceptable salt of the compound. They have excellent SK channel blocking activity and are useful as a medicine. [I] (In the formula, R0 represents hydrogen, halogeno, etc.; R1 represents a group represented by the formula (a) or (b); A represents a group represented by the formula (X) or (Y); D1, D2 and D3 each represents N or CH; R2 represents halogeno or optionally halogenated lower alkyl, etc.; R3 represents hydrogen or lower alkyl; and Q represents lower alkylene.
    Type: Application
    Filed: July 22, 2005
    Publication date: April 3, 2008
    Applicant: Tanabe Seiyaku Co., Ltd.
    Inventors: Iwao Takamuro, Saburo Kawanami, Yasunori Tsuboi, Toshiyuki Himiyama, Yuko Hasegawa, Hideki Mochida, Kouji Nogi
  • Publication number: 20070225296
    Abstract: The present invention relates to an arylalkylamine compound represented by the following formula [I] or a pharmaceutically acceptable salt thereof, a process for preparing the same, and use of the above-mentioned compound as an activating compound (CaSR agonist) of a Ca sensing receptor, a pharmaceutical composition containing the above-mentioned compound as an effective ingredient, etc.
    Type: Application
    Filed: May 27, 2005
    Publication date: September 27, 2007
    Inventors: Hiroshi Miyazaki, Junko Tsubakimoto, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
  • Publication number: 20060135525
    Abstract: The present invention provides a novel pyrazolopyrimidine compound of the formula [I]: wherein R? is (A) a substituted aryl group, (B) an optionally substituted nitrogen-containing aliphatic heteromonocyclic group, (C) a substituted cyclo-lower alkyl group, (D) an optionally substituted amino group, or (E) a substituted heteroaryl group, R2 is (a) an optionally substituted heteroaryl group or (b) an optionally substituted aryl group, Y is a single bond, a lower alkylene group or a lower alkenylene group, Z is a group of the formula: —CO—, —CH2-, S02- or a group of the formula [II]: Q is a lower alkylene group, and q is an integer of 0 or 1 or a pharmaceutically acceptable sait thereof, which has a small conductance potassium channel (SK channel) blocking activity and is useful as a medicament and a process for preparing the same.
    Type: Application
    Filed: January 23, 2004
    Publication date: June 22, 2006
    Inventors: Iwao Takamuro, Yasuo Sekine, Yasunori Tsuboi, Kouji Nogi, Hiroyuki Taniguchi
  • Publication number: 20040106635
    Abstract: The present invention provides a novel spiroistiquinoline derivative of the formula [I]: which has a small-conductance potassium channel (SK) blocking activity and is useful as a medicament, a method for preparing the same and an intermediate thereof.
    Type: Application
    Filed: September 26, 2003
    Publication date: June 3, 2004
    Inventors: Iwao Takamuro, Koichi Homma, Akihiko Ishida, Hiroyuki Taniguchi, Yuichi Onoda