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).
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Patent number: 8778628Abstract: An arylalkylamine compound is represented by the following formula [I-e] or a pharmaceutically acceptable salt thereof.Type: GrantFiled: June 17, 2013Date of Patent: July 15, 2014Assignee: Mitsubishi Tanabe Pharma CorporationInventors: Hiroshi Miyazaki, Junko Okabe, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
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Patent number: 8759387Abstract: 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: GrantFiled: December 17, 2012Date of Patent: June 24, 2014Assignee: Mitsubishi Tanabe Pharma CorporationInventors: Hiroshi Miyazaki, Junko Okabe, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
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Patent number: 8703721Abstract: 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: GrantFiled: May 12, 2011Date of Patent: April 22, 2014Assignee: Mitsubishi Tanabe Pharma CorporationInventors: Hiroshi Miyazaki, Junko Tsubakimoto, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
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Publication number: 20140080770Abstract: An arylalkylamine compound is represented by the following formula [I-e] or a pharmaceutically acceptable salt thereof.Type: ApplicationFiled: June 17, 2013Publication date: March 20, 2014Applicant: Mitsubishi Tanabe Pharma CorporationInventors: Hiroshi MIYAZAKI, Junko OKABE, Kosuke YASUDA, Iwao TAKAMURO, Osamu SAKURAI, Tetsuya YANAGIDA, Yutaka HISADA
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Patent number: 8492111Abstract: 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: GrantFiled: May 7, 2010Date of Patent: July 23, 2013Assignee: Mitsubishi Tanabe Pharma CorporationInventors: Hiroshi Miyazaki, Junko Tsubakimoto, Kosuke Yasuda, Iwao Takamuro, Osamu Sakural, Tetsuya Yanagida, Yataka Hisada
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Patent number: 8362274Abstract: 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: GrantFiled: May 27, 2005Date of Patent: January 29, 2013Assignee: Mitsubishi Tanabe Pharma CorporationInventors: Hiroshi Miyazaki, Junko Tsubakimoto, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
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Patent number: 8314247Abstract: 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: GrantFiled: January 9, 2008Date of Patent: November 20, 2012Assignee: Mitsubishi Tanabe Pharma CorporationInventors: Iwao Takamuro, Kazutoshi Sugawara, Hiroshi Sugama
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Publication number: 20110218160Abstract: 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: ApplicationFiled: May 12, 2011Publication date: September 8, 2011Inventors: Hiroshi Miyazaki, Junko Tsubakimoto, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
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Publication number: 20100249049Abstract: 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: ApplicationFiled: May 7, 2010Publication date: September 30, 2010Inventors: Hiroshi MIYAZAKI, Junko TSUBAKIMOTO, Kosuke YASUDA, Iwao TAKAMURO, Osamu SAKURAL, Tetsuya YANAGIDA, Yataka HISADA
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Publication number: 20100099662Abstract: 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: ApplicationFiled: January 9, 2008Publication date: April 22, 2010Inventors: Iwao Takamuro, Kazutoshi Sugawara, Hiroshi Sugama
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Publication number: 20090234117Abstract: 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: ApplicationFiled: May 24, 2006Publication date: September 17, 2009Inventors: Toshihiko Kashiwagi, Iwao Takamuro, Yumi Watanabe, Michihisa Yato
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Patent number: 7384952Abstract: 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 sameType: GrantFiled: January 23, 2004Date of Patent: June 10, 2008Assignee: Mitsubishi Tanabe Pharma CorporationInventors: Iwao Takamuro, Yasuo Sekine, Yasunori Tsuboi, Kouji Nogi, Hiroyuki Taniguchi
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Publication number: 20080081817Abstract: 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: ApplicationFiled: July 22, 2005Publication date: April 3, 2008Applicant: Tanabe Seiyaku Co., Ltd.Inventors: Iwao Takamuro, Saburo Kawanami, Yasunori Tsuboi, Toshiyuki Himiyama, Yuko Hasegawa, Hideki Mochida, Kouji Nogi
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Publication number: 20070225296Abstract: 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: ApplicationFiled: May 27, 2005Publication date: September 27, 2007Inventors: Hiroshi Miyazaki, Junko Tsubakimoto, Kosuke Yasuda, Iwao Takamuro, Osamu Sakurai, Tetsuya Yanagida, Yutaka Hisada
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Publication number: 20060135525Abstract: 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: ApplicationFiled: January 23, 2004Publication date: June 22, 2006Inventors: Iwao Takamuro, Yasuo Sekine, Yasunori Tsuboi, Kouji Nogi, Hiroyuki Taniguchi
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Publication number: 20040106635Abstract: 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: ApplicationFiled: September 26, 2003Publication date: June 3, 2004Inventors: Iwao Takamuro, Koichi Homma, Akihiko Ishida, Hiroyuki Taniguchi, Yuichi Onoda