Patents by Inventor Takeshi Hanazawa

Takeshi Hanazawa 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: 9447090
    Abstract: An excellent drug for treating or preventing cardiovascular diseases, based on cGMP production enhancing action due to soluble guanylate cyclase activating action, is provided. It was found that imidazopyridine compounds having a carbamoyl group at the 3-position and a substituent bonded at the 8-position via an oxygen atom in an imidazo[1,2-a]pyridine skeleton exhibits a cGMP production enhancing action by a potent soluble guanylate cyclase activating action, and is useful as a drug for treating or preventing various soluble guanylate cyclase-related cardiovascular diseases, thereby completing the present invention.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: September 20, 2016
    Assignee: Astellas Pharma Inc.
    Inventors: Yuji Koga, Kyoichi Maeno, Ippei Sato, Yoshimasa Imamura, Takeshi Hanazawa, Maiko Iida, Kazuhiko Ohne, Kenichiro Imamura, Tsubasa Watanabe, Eisuke Nozawa, Hiroshi Shibata
  • Patent number: 9278968
    Abstract: [Problem] A pharmaceutical composition for treating or preventing various cardiovascular diseases, which have sGC activities based on improvement of cGMP signals, is provided. [Means for Solution] It was found that imidazo[1,2-a]pyridine compounds having a carbamoyl group at the 3-position and a particular cyclic group at the 8-position via a methyleneoxy group, or a salt thereof have sGC activation, and are useful as active ingredients of pharmaceutical compositions for treating or preventing various sGC-related cardiovascular diseases, in particular, peripheral arterial diseases, intermittent claudication, critical limb ischemia, hypertension, and pulmonary hypertension, thereby completing the present invention.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: March 8, 2016
    Assignee: Astellas Pharma Inc.
    Inventors: Toshio Kurosaki, Tsubasa Watanabe, Kazuhiko Ohne, Hiroki Ishioka, Eisuke Nozawa, Takeshi Hanazawa, Shunichiro Hachiya, Hiroshi Shibata, Yuji Koga, Ryo Mizoguchi
  • Publication number: 20150232464
    Abstract: [Problem] A pharmaceutical composition for treating or preventing various cardiovascular diseases, which have sGC activities based on improvement of cGMP signals, is provided. [Means for Solution] It was found that imidazo[1,2-a]pyridine compounds having a carbamoyl group at the 3-position and a particular cyclic group at the 8-position via a methyleneoxy group, or a salt thereof have sGC activation, and are useful as active ingredients of pharmaceutical compositions for treating or preventing various sGC-related cardiovascular diseases, in particular, peripheral arterial diseases, intermittent claudication, critical limb ischemia, hypertension, and pulmonary hypertension, thereby completing the present invention.
    Type: Application
    Filed: November 28, 2013
    Publication date: August 20, 2015
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Toshio Kurosaki, Tsubasa Watanabe, Kazuhiko Ohne, Hiroki Ishioka, Eisuke Nozawa, Takeshi Hanazawa, Shunichiro Hachiya, Hiroshi Shibata, Yuji Koga, Ryo Mizoguchi
  • Publication number: 20140088080
    Abstract: [Problem] An excellent drug for treating or preventing cardiovascular diseases, based on cGMP production enhancing action due to soluble guanylate cyclase activating action, is provided. [Means for Solution] It was found that imidazopyridine compounds having a carbamoyl group at the 3-position and a substituent bonded at the 8-position via an oxygen atom in an imidazo[1,2-a]pyridine skeleton exhibits a cGMP production enhancing action by a potent soluble guanylate cyclase activating action, and is useful as a drug for treating or preventing various soluble guanylate cyclase-related cardiovascular diseases, thereby completing the present invention.
    Type: Application
    Filed: November 26, 2013
    Publication date: March 27, 2014
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Yuji KOGA, Kyoichi MAENO, Ippei SATO, Yoshimasa IMAMURA, Takeshi HANAZAWA, Maiko IIDA, Kazuhiko OHNE, Kenichiro IMAMURA, Tsubasa WATANABE, Eisuke NOZAWA, Hiroshi SHIBATA
  • Publication number: 20120046292
    Abstract: [Problem] A compound which is useful as an anti-obesity agent is provided. [Means for Solution] The present inventors have investigated a compound having a DGAT1 inhibitory action, which is promising as an active ingredient of a pharmaceutical composition for treating obesity, type II diabetes mellitus, fatty liver, and diseases associated with these diseases, and as a result, they have found that the diacylethylenediamine compound of the present invention has an excellent DGAT1 inhibitory action, thereby completing the present invention. That is, the diacylethylenediamine compound of the present invention has a DGAT1 inhibitory action, and can be therefore used as an agent for preventing and/or treating obesity, type II diabetes mellitus, fatty liver, and diseases associated with these diseases.
    Type: Application
    Filed: April 19, 2010
    Publication date: February 23, 2012
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Tomoaki Kawano, Yasuhiro Yonetoku, Takeshi Hanazawa, Takahiro Nigawara, Hiroki Fukudome, Hiroshi Moritani
  • Publication number: 20110152326
    Abstract: This invention provides a compound of the formula (I): (I) These compounds are useful for the treatment of disease conditions caused by overactivation of the VR1 receptor, such as pain, or the like in mammalian. This invention also provides a pharmaceutical composition comprising the above compound.
    Type: Application
    Filed: March 15, 2006
    Publication date: June 23, 2011
    Inventors: Takeshi Hanazawa, Satoshi Nagayama, Kazumari Nakao, Hirotaka Tanaka
  • Patent number: 7915448
    Abstract: This invention provides a compound of the formula (I): wherein A and B are independently CR12 or N; D and E are each independently CR9 or N; R1 represents (C1-C6)alkyl; R2 represents hydrogen, halogen, hydroxy, (C1-C6) alkyl, halo(C1-C6) alkyl, hydroxy(C1-C6) alkyl, (C1-C6)alkoxy or (C1-C6)alkoxy-(C1-C6)alkyl; R3, R4, R5, R6, R10 and R11 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkyl or (C1-C6)alkoxy-(C1-C6)alkyl; or R3 and R4 are taken together with the carbon atom to which they are attached to form a 3- to 7-membered carbocyclic ring or heterocyclic ring in which one or two non-adjacent carbon atoms are optionally replaced by an oxygen atom, a sulfur atom or NH; R7 and R9 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, (C1-C6)alkylsulfonyl, NH2, [(C1-C6
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: March 29, 2011
    Assignee: Pfizer Inc.
    Inventors: Takeshi Hanazawa, Misato Hirano, Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao, Yuji Shishido, Hirotaka Tanaka
  • Patent number: 7723321
    Abstract: This invention relates to compounds of the formula (I): or a pharmaceutically acceptable salt thereof, wherein: A, B, X, R1, R2, R3, R4, R5, R6, R7 and R8 are each as described herein or a pharmaceutically acceptable salt, and compositions containing such compounds and the use of such compounds in the treatment of a condition mediated by acid pump antagonistic activity such as, but not limited to, as gastrointestinal disease, gastroesophageal disease, gastroesophageal reflux disease (GERD), peptic ulcer, gastric ulcer, duodenal ulcer, NSAID-induced ulcers, gastritis, infection of Helicobacter pylori, dyspepsia, functional dyspepsia, Zollinger-Ellison syndrome, non-erosive reflux disease (NERD), visceral pain, heartburn, nausea, esophagitis, dysphagia, hypersalivation, airway disorders or asthma.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: May 25, 2010
    Assignee: RaQualia Pharma Inc.
    Inventors: Takeshi Hanazawa, Hiroki Koike
  • Publication number: 20100035880
    Abstract: This invention provides a compound of the formula (I): wherein A and B are independently CR12 or N; D and E are each independently CR9 or N; R1 represents (C1-C6)alkyl; R2 represents hydrogen, halogen, hydroxy, (C1-C6) alkyl, halo(C1-C6) alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy or (C1-C6)alkoxy-(C1-C6)alkyl; R3, R4, R5, R6, R10 and R11 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkyl or (C1-C6)alkoxy-(C1-C6)alkyl; or R3 and R4 are taken together with the carbon atom to which they are attached to form a 3- to 7-membered carbocyclic ring or heterocyclic ring in which one or two non-adjacent carbon atoms are optionally replaced by an oxygen atom, a sulfur atom or NH; R7 and R9 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, (C1-C6)alkylsulfonyl, NH2, [(C1-C6)
    Type: Application
    Filed: October 13, 2009
    Publication date: February 11, 2010
    Inventors: TAKESHI HANAZAWA, MISATO HIRANO, TADASHI INOUE, SATOSHI NAGAYAMA, KAZUNARI NAKAO, YUJI SHISHIDO, HIROTAKA TANAKA
  • Patent number: 7622589
    Abstract: This invention provides a compound of the formula (I): wherein, variables A, B, D, E, and R1 to R11 are as defined in the specification.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: November 24, 2009
    Assignee: Pfizer Inc.
    Inventors: Takeshi Hanazawa, Misato Hirano, Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao, Yuji Shishido, Hirotaka Tanaka
  • Patent number: 7566739
    Abstract: This invention provides compounds of the formula (I) useful for the treatment of disease conditions caused by over activation of Vr1 receptors such as pain or the like in mammals as well as compositions comprising them.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: July 28, 2009
    Assignee: Pfizer Inc.
    Inventors: Takeshi Hanazawa, Misato Hirano, Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao, Yuji Shishido, Hirotaka Tanaka
  • Publication number: 20070142448
    Abstract: This invention relates to compounds of the formula (I): or a pharmaceutically acceptable salt thereof, wherein: A, B, X, R1, R2, R3, R4, R5, R6, R7 and R8 are each as described herein or a pharmaceutically acceptable salt, and compositions containing such compounds and the use of such compounds in the treatment of a condition mediated by acid pump antagonistic activity such as, but not limited to, as gastrointestinal disease, gastroesophageal disease, gastroesophageal reflux disease (GERD), peptic ulcer, gastric ulcer, duodenal ulcer, NSAID-induced ulcers, gastritis, infection of Helicobacter pylori, dyspepsia, functional dyspepsia, Zollinger-Ellison syndrome, non-erosive reflux disease (NERD), visceral pain, heartburn, nausea, esophagitis, dysphagia, hypersalivation, airway disorders or asthma.
    Type: Application
    Filed: December 19, 2006
    Publication date: June 21, 2007
    Inventors: Takeshi Hanazawa, Hiroki Koike
  • Publication number: 20060211741
    Abstract: This invention provides a compound of the formula (I): wherein A and B are independently CR12 or N; D and E are each independently CR9 or N; R1 represents (C1-C6)alkyl; R2 represents hydrogen, halogen, hydroxy, (C1-C6)alkyl, halo(C1-C6)alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy or (C1-C6)alkoxy-(C1-C6)alkyl; R3, R4, R5, R6, R10 and R11 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkyl or (C1-C6)alkoxy-(C1-C6)alkyl; or R3 and R4 are taken together with the carbon atom to which they are attached to form a 3- to 7-membered carbocyclic ring or heterocyclic ring in which one or two non-adjacent carbon atoms are optionally replaced by an oxygen atom, a sulfur atom or NH; R7 and R9 each independently represent hydrogen, halogen, (C1-C6)alkyl, halo(C1-C6)alkyl, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, (C1-C6)alkylsulfonyl, NH2, [(C1-C6)a
    Type: Application
    Filed: March 17, 2006
    Publication date: September 21, 2006
    Inventors: Takeshi Hanazawa, Misato Hirano, Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao, Yuji Shishido, Hirotaka Tanaka
  • Publication number: 20060205980
    Abstract: This invention provides a compound of the formula (I): wherein R1 represents (C1-C6)alkyl; R2 represents a hydrogen atom, a halogen atom, a hydroxy group, (C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkyl or halo(C1-C6)alkyl; R3 represents a halogen atom, (C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, halo(C1-C6)alkyl, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, (C1-C6)alkylsulfonyl, [(C1-C6)alkyl]NH—, or [(C1-C6)alkyl]2N—; R4 represents a halogen atom, (C1-C6)alkyl, halo(C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, [(C1-C6)alkyl]NH—, or [(C1-C6)alkyl]2N—; R5 represents a halogen atom, (C1-C6)alkyl, (C1-C6)alkoxy, hydroxy(C1-C6)alkoxy, (C1-C6)alkoxy-(C1-C6)alkyl, (C1-C6)alkoxy-(C1-C6)alkoxy, halo(C1-C6)alkyl, (C1-C6)alkylthio, (C1-C6)alkylsulfinyl, (C1-C6)alkylsulfonyl, [(C1-C6)alkyl]NH—, [(C1-C6)alkyl]2N—, H2N—(C1-C6)alkoxy, (C1-C6)alkyl-NH—(C1-C6)alkoxy,
    Type: Application
    Filed: March 10, 2006
    Publication date: September 14, 2006
    Inventors: Takeshi Hanazawa, Misato Hirano, Tadashi Inoue, Satoshi Nagayama, Kazunari Nakao, Yuji Shishido, Hirotaka Tanaka