Patents by Inventor Ryo Mizoguchi

Ryo Mizoguchi 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: 10106523
    Abstract: A compound which is useful as an active ingredient of a pharmaceutical composition, for example, a pharmaceutical composition for treating chronic renal failure and/or diabetic nephropathy is provided.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: October 23, 2018
    Assignee: Astellas Pharma Inc.
    Inventors: Takao Okuda, Eisuke Nozawa, Tohru Ugawa, Ryo Mizoguchi
  • Publication number: 20180030030
    Abstract: [Problem] A compound which is useful as an active ingredient of a pharmaceutical composition, for example, a pharmaceutical composition for treating chronic renal failure and/or diabetic nephropathy is provided. [Means for Solution] The present inventors have conducted extensive studies on a compound having an EP4 receptor antagonistic action, and have found that an amide compound or a salt thereof exhibits an EP4 receptor antagonistic action, thereby completing the present invention. The amide compound or a salt thereof has an EP4 receptor antagonistic action, and can be used as an active ingredient of a pharmaceutical composition for preventing and/or treating various EP4-related diseases, for example, chronic renal failure and/or diabetic nephropathy.
    Type: Application
    Filed: March 25, 2015
    Publication date: February 1, 2018
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Takao OKUDA, Eisuke NOZAWA, Tohru UGAWA, Ryo MIZOGUCHI
  • 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: 20130261986
    Abstract: An object of the present invention is to provide a method for rapidly and accurately determining the lipophilicity of a wide variety of substances.
    Type: Application
    Filed: December 26, 2011
    Publication date: October 3, 2013
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Ryo Mizoguchi, Katsuhiko Gato
  • Patent number: 8399663
    Abstract: Anytime obtained is uniform crystal of N-(4-fluorophenyl)-N?-phenyl-N?-(pyrimidin-2-ylmethyl)-1,3,5-triazine-2,4,6-triamine (compound A) and/or N,N?-bis (4-fluorophenyl)-N?-(pyrimidin-2-ylmethyl)-1,3,5-triazine-2,4,6-triamine (compound B) as a medicament or a starting material for the preparation of the medicament, and provided are a fumarate of the compound A and/or the compound B having excellent stability and a novel crystal thereof. A salt of the compound A and/or the compound B with fumaric acid enables uniform crystal to be anytime obtained, and thus, it is a compound that is very useful as a medicament or a starting material for the preparation of the medicament having excellent stability.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: March 19, 2013
    Assignee: Astellas Pharma Inc.
    Inventors: Junya Ohmori, Makoto Kasai, Takenori Kimura, Noritaka Hamada, Ryo Mizoguchi, Satoshi Miyamoto, Noriyuki Kawano
  • Patent number: 8278333
    Abstract: Object Provided are ?-form crystal, ?-form crystal, and ?-form crystal of a benzoxadiazole derivative, wherein a uniform crystal having sufficient qualities can be obtained with high reproducibility, and they can be anytime supplied as crystals of drug substance for use in producing pharmaceuticals, are particularly suitable for mass synthesis in industrial production, hardly exhibit hygroscopicity and have particularly excellent photo-resistance. Means for Resolution A solving means includes ?-form crystal of 4-[3-isopropyl-5-(6-phenyl-3-pyridyl)-4H-1,2,4-triazol-4-yl]-2,1,3-benzoxadiazole, which shows an endothermic peak at 145 to 150° C. according to a differential scanning calorimeter analysis (DSC analysis) and shows X-ray powder diffraction peaks at 9.8, 11.1, 12.8, 13.3, 17.1, 20.2, 21.2 and 22.3 in 2?(°), and the like.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: October 2, 2012
    Assignee: Astellas Pharma Inc.
    Inventors: Noritaka Hamada, Ryo Mizoguchi, Kuniyuki Sano, Takaaki Sakaida, Yuji Awamura, Yu Iwakawa, Takahiko Tobe, Takashi Sugane
  • Publication number: 20110166348
    Abstract: Provided are an acid addition salt of (+)-2-[(inden-7-yloxy)methyl]morpholine (compound A) and a novel crystal thereof, which are for use as a medicament or a drug substance, and which has high storage stability, particularly high stability against humidity and light. An acid addition salt of the compound A with an acid selected from benzenesulfonic acid and hydrobromic acid is a compound which is isolated in the form of a crystal, is a solid at room temperature, exhibits no hygroscopicity at such a level that causes a problem for use as a medicament or a drug substance, has stability against humidity and light, and is therefore extremely useful as a medicament or a drug substance.
    Type: Application
    Filed: September 10, 2009
    Publication date: July 7, 2011
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Kazumi Kikuchi, Akio Kuroda, Ryo Mizoguchi, Kenichirou Sakamoto, Kazuhiro Takeguchi
  • Publication number: 20100256151
    Abstract: Anytime obtained is uniform crystal of N-(4-fluorophenyl)-N?-phenyl-N?-(pyrimidin-2-ylmethyl)-1,3,5-triazine-2,4,6-triamine (compound A) and/or N,N?-bis (4-fluorophenyl)-N?-(pyrimidin-2-ylmethyl)-1,3,5-triazine-2,4,6-triamine (compound B) as a medicament or a starting material for the preparation of the medicament, and provided are a fumarate of the compound A and/or the compound B having excellent stability and a novel crystal thereof. A salt of the compound A and/or the compound B with fumaric acid enables uniform crystal to be anytime obtained, and thus, it is a compound that is very useful as a medicament or a starting material for the preparation of the medicament having excellent stability.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 7, 2010
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Junya OHMORI, Makoto KASAI, Takenori KIMURA, Noritaka HAMADA, Ryo MIZOGUCHI, Satoshi MIYAMOTO, Noriyuki KAWANO
  • Publication number: 20090203741
    Abstract: Object Provided are ?-form crystal, ?-form crystal, and ?-form crystal of a benzoxadiazole derivative, wherein a uniform crystal having sufficient qualities can be obtained with high reproducibility, and they can be anytime supplied as crystals of drug substance for use in producing pharmaceuticals, are particularly suitable for mass synthesis in industrial production, hardly exhibit hygroscopicity and have particularly excellent photo-resistance. Means for Resolution A solving means includes ?-form crystal of 4-[3-isopropyl-5-(6-phenyl-3-pyridyl)-4H-1,2,4-triazol-4-yl]-2,1,3-benzoxadiazole, which shows an endothermic peak at 145 to 150° C. according to a differential scanning calorimeter analysis (DSC analysis) and shows X-ray powder diffraction peaks at 9.8, 11.1, 12.8, 13.3, 17.1, 20.2, 21.2 and 22.3 in 2?(°), and the like.
    Type: Application
    Filed: July 13, 2007
    Publication date: August 13, 2009
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Noritaka Hamada, Ryo Mizoguchi, Kuniyuki Sano, Takaaki Sakaida, Yuji Awamura, Yu Iwakawa, Takahiko Tobe, Takashi Sugane