Patents by Inventor Tomofumi Takuwa

Tomofumi Takuwa 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: 10532048
    Abstract: To provide a pharmaceutical, in particular a compound which can be used as a therapeutic agent for irritable bowel syndrome (IBS). It was found that a tetrahydroisoquinolin-1-one derivative having an amide group at the 4-position or a pharmaceutically acceptable salt thereof has an excellent bombesin 2 (BB2) receptor antagonistic action. It is also found that the tetrahydroisoquinolin-1-one derivative is highly effective on bowel movement disorders. From the above, the tetrahydroisoquinolin-1-one derivative of the present invention is useful as a therapeutic agent for diseases associated with a BB2 receptor, in particular IBS.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: January 14, 2020
    Assignee: Seldar Pharma Inc.
    Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
  • Publication number: 20190000832
    Abstract: To provide a pharmaceutical, in particular a compound which can be used as a therapeutic agent for irritable bowel syndrome (IBS). It was found that a tetrahydroisoquinolin-1-one derivative having an amide group at the 4-position or a pharmaceutically acceptable salt thereof has an excellent bombesin 2 (BB2) receptor antagonistic action. It is also found that the tetrahydroisoquinolin-1-one derivative is highly effective on bowel movement disorders. From the above, the tetrahydroisoquinolin-1-one derivative of the present invention is useful as a therapeutic agent for diseases associated with a BB2 receptor, in particular IBS.
    Type: Application
    Filed: July 5, 2018
    Publication date: January 3, 2019
    Applicant: Selder Pharma Inc.
    Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
  • Patent number: 10016410
    Abstract: To provide a pharmaceutical, in particular a compound which can be used as a therapeutic agent for irritable bowel syndrome (IBS). It was found that a tetrahydroisoquinolin-1-one derivative having an amide group at the 4-position or a pharmaceutically acceptable salt thereof has an excellent bombesin 2 (BB2) receptor antagonistic action. It is also found that the tetrahydroisoquinolin-1-one derivative is highly effective on bowel movement disorders. From the above, the tetrahydroisoquinolin-1-one derivative of the present invention is useful as a therapeutic agent for diseases associated with a BB2 receptor, in particular IBS.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: July 10, 2018
    Assignee: Seldar Pharma Inc.
    Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
  • Publication number: 20170189390
    Abstract: To provide a pharmaceutical, in particular a compound which can be used as a therapeutic agent for irritable bowel syndrome (IBS). It was found that a tetrahydroisoquinolin-1-one derivative having an amide group at the 4-position or a pharmaceutically acceptable salt thereof has an excellent bombesin 2 (BB2) receptor antagonistic action. It is also found that the tetrahydroisoquinolin-1-one derivative is highly effective on bowel movement disorders. From the above, the tetrahydroisoquinolin-1-one derivative of the present invention is useful as a therapeutic agent for diseases associated with a BB2 receptor, in particular IBS.
    Type: Application
    Filed: November 14, 2016
    Publication date: July 6, 2017
    Applicant: Seldar Pharma Inc.
    Inventors: Hiroyuki Hisamichi, ltsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
  • Patent number: 9642852
    Abstract: A sulfur-containing bicyclic compound of the present invention has a PAM action of GABAB. A composition containing the sulfur-containing bicyclic compound. And, a method for preventing and/or treating schizophrenia, CIAS, cognitive impairment, fragile X syndrome, autism spectrum disorder, spasticity, anxiety disorder, substance addiction, pain, fibromyalgia, or Charcot-Marie-Tooth disease by administering the sulfur-containing bicyclic compound.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: May 9, 2017
    Assignee: Astellas Pharma Inc.
    Inventors: Nobuyuki Shiraishi, Hiroaki Hoshii, Wataru Hamaguchi, Eriko Honjo, Tomofumi Takuwa, Yuji Kondo, Takayuki Goto
  • Patent number: 9526719
    Abstract: To provide a pharmaceutical, in particular a compound which can be used as a therapeutic agent for irritable bowel syndrome (IBS). It was found that a tetrahydroisoquinolin-1-one derivative having an amide group at the 4-position or a pharmaceutically acceptable salt thereof has an excellent bombesin 2 (BB2) receptor antagonistic action. It is also found that the tetrahydroisoquinolin-1-one derivative is highly effective on bowel movement disorders. From the above, the tetrahydroisoquinolin-1-one derivative of the present invention is useful as a therapeutic agent for diseases associated with a BB2 receptor, in particular IBS.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: December 27, 2016
    Assignee: Seldar Pharma Inc.
    Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
  • Publication number: 20150359787
    Abstract: To provide a pharmaceutical, in particular a compound which can be used as a therapeutic agent for irritable bowel syndrome (IBS). It was found that a tetrahydroisoquinolin-1-one derivative having an amide group at the 4-position or a pharmaceutically acceptable salt thereof has an excellent bombesin 2 (BB2) receptor antagonistic action. It is also found that the tetrahydroisoquinolin-1-one derivative is highly effective on bowel movement disorders. From the above, the tetrahydroisoquinolin-1-one derivative of the present invention is useful as a therapeutic agent for diseases associated with a BB2 receptor, in particular IBS.
    Type: Application
    Filed: August 26, 2015
    Publication date: December 17, 2015
    Applicant: Seldar Pharma Inc.
    Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
  • Patent number: 9150541
    Abstract: To provide a pharmaceutical, in particular a compound which can be used as a therapeutic agent for irritable bowel syndrome (IBS). It was found that a tetrahydroisoquinolin-1-one derivative having an amide group at the 4-position or a pharmaceutically acceptable salt thereof has an excellent bombesin 2 (BB2) receptor antagonistic action. It is also found that the tetrahydroisoquinolin-1-one derivative is highly effective on bowel movement disorders. From the above, the tetrahydroisoquinolin-1-one derivative of the present invention is useful as a therapeutic agent for diseases associated with a BB2 receptor, in particular IBS.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: October 6, 2015
    Assignee: Seldar Pharma Inc.
    Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
  • Publication number: 20150231138
    Abstract: A sulfur-containing bicyclic compound of the present invention has a PAM action of GABAB. A composition containing the sulfur-containing bicyclic compound. And, a method for preventing and/or treating schizophrenia, CIAS, cognitive impairment, fragile X syndrome, autism spectrum disorder, spasticity, anxiety disorder, substance addiction, pain, fibromyalgia, or Charcot-Marie-Tooth disease by administering the sulfur-containing bicyclic compound.
    Type: Application
    Filed: April 17, 2015
    Publication date: August 20, 2015
    Applicant: Astellas Pharma Inc.
    Inventors: Nobuyuki SHIRAISHI, Hiroaki HOSHII, Wataru HAMAGUCHI, Eriko HONJO, Tomofumi TAKUWA, Yuji KONDO, Takayuki GOTO
  • Patent number: 9051339
    Abstract: A sulfur-containing bicyclic compound having a PAM action of GABAB, and it use for preventing and/or treating schizophrenia, CIAS, cognitive impairment, fragile X syndrome, autism spectrum disorder, spasticity, anxiety disorder, substance addiction, pain, fibromyalgia, or Charcot-Marie-Tooth disease. A pharmaceutical composition for preventing and/or treating schizophrenia, cognitive impairment associated with schizophrenia (CIAS), cognitive impairment, fragile X syndrome, autism spectrum disorder, spasticity, anxiety disorder, substance addiction, pain, fibromyalgia, Charcot-Marie-Tooth disease, or the like, which has a positive allosteric modulator (PAM action) of GABAB.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: June 9, 2015
    Assignee: Astellas Pharma Inc.
    Inventors: Nobuyuki Shiraishi, Hiroaki Hoshii, Wataru Hamaguchi, Eriko Honjo, Tomofumi Takuwa, Yuji Kondo, Takayuki Goto
  • Publication number: 20150111876
    Abstract: A sulfur-containing bicyclic compound having a PAM action of GABAB, and it use for preventing and/or treating schizophrenia, CIAS, cognitive impairment, fragile X syndrome, autism spectrum disorder, spasticity, anxiety disorder, substance addiction, pain, fibromyalgia, or Charcot-Marie-Tooth disease. A pharmaceutical composition for preventing and/or treating schizophrenia, cognitive impairment associated with schizophrenia (CIAS), cognitive impairment, fragile X syndrome, autism spectrum disorder, spasticity, anxiety disorder, substance addiction, pain, fibromyalgia, Charcot-Marie-Tooth disease, or the like, which has a positive allosteric modulator (PAM action) of GABAB.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Applicant: Astellas Pharma Inc.
    Inventors: Nobuyuki Shiraishi, Hiroaki Hoshii, Wataru Hamaguchi, Eriko Honjo, Tomofumi Takuwa, Yuji Kondo, Takayuki Goto
  • Publication number: 20140058100
    Abstract: To provide a pharmaceutical, in particular a compound which can be used as a therapeutic agent for irritable bowel syndrome (IBS). It was found that a tetrahydroisoquinolin-1-one derivative having an amide group at the 4-position or a pharmaceutically acceptable salt thereof has an excellent bombesin 2 (BB2) receptor antagonistic action. It is also found that the tetrahydroisoquinolin-1-one derivative is highly effective on bowel movement disorders. From the above, the tetrahydroisoquinolin-1-one derivative of the present invention is useful as a therapeutic agent for diseases associated with a BB2 receptor, in particular IBS.
    Type: Application
    Filed: July 15, 2013
    Publication date: February 27, 2014
    Applicant: Seldar Pharma Inc.
    Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
  • Patent number: 8486970
    Abstract: [Problems] To provide a pharmaceutical, in particular a compound which can be used as a therapeutic agent for irritable bowel syndrome (IBS). [Means for Solving Problems] It was found that a tetrahydroisoquinolin-1-one derivative having an amide group at the 4-position or a pharmaceutically acceptable salt thereof has an excellent bombesin 2 (BB2) receptor antagonistic action. It is also found that the tetrahydroisoquinolin-1-one derivative is highly effective on bowel movement disorders. From the above, the tetrahydroisoquinolin-1-one derivative of the present invention is useful as a therapeutic agent for diseases associated with a BB2 receptor, in particular IBS.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: July 16, 2013
    Assignee: Seldar Pharma Inc.
    Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
  • Publication number: 20110009379
    Abstract: [Problems] A compound, which is useful as an active ingredient for a pharmaceutical composition, for example a pharmaceutical composition for treating constipation-type irritable bowel syndrome, atonic constipation and/or functional gastrointestinal disorder, is provided. [Means for Solution] The present inventors have extensively studied compounds having TRPA1 channel activation activity, and confirmed that an indolinone compound has a TRPA1 channel activation activity, and thus completed the present invention. The indolinone compound of the present invention has a TRPA1 channel activation activity and can be used as an active ingredient of a pharmaceutical composition for preventing and/or treating constipation-type irritable bowel syndrome, atonic constipation and/or functional gastrointestinal disorder or the like.
    Type: Application
    Filed: March 30, 2009
    Publication date: January 13, 2011
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Hidetaka Kaku, Tomofumi Takuwa, Michihito Kageyama, Katsura Nozawa, Hitoshi Doihara
  • Publication number: 20100227866
    Abstract: [Problems] To provide a pharmaceutical, in particular a compound which can be used as a therapeutic agent for irritable bowel syndrome (IBS). [Means for Solving Problems] It was found that a tetrahydroisoquinolin-1-one derivative having an amide group at the 4-position or a pharmaceutically acceptable salt thereof has an excellent bombesin 2 (BB2) receptor antagonistic action. It is also found that the tetrahydroisoquinolin-1-one derivative is highly effective on bowel movement disorders. From the above, the tetrahydroisoquinolin-1-one derivative of the present invention is useful as a therapeutic agent for diseases associated with a BB2 receptor, in particular IBS.
    Type: Application
    Filed: May 26, 2008
    Publication date: September 9, 2010
    Applicant: ASTELLAS PHARMA INC.
    Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
  • Patent number: 7196080
    Abstract: The present invention relates to a compound which is represented by the following general formula and has type 4 phosphodiesterase inhibitory action, and uses and an intermediate compound thereof. (wherein R1, R2: hydrogen, a halogen, a lower alkyl, a lower alkoxy, or the like, R3, R4: hydrogen, a (substituted) lower alkyl, a halogen, or the like, R5: hydrogen, a lower alkyl, a lower alkoxycarbonyl, or the like, and n: 0 or 1).
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: March 27, 2007
    Assignee: Astellas Pharma Inc.
    Inventors: Masahiro Iwata, Noriyuki Kawano, Hiroyuki Kaizawa, Tomofumi Takuwa, Issei Tsukamoto, Ryushi Seo, Kiyoshi Yahiro, Miki Kobayashi, Makoto Takeuchi
  • Publication number: 20040192701
    Abstract: The present invention relates to a compound which is represented by the following general formula and has type 4 phosphodiesterase inhibitory action, and uses and an intermediate compound thereof.
    Type: Application
    Filed: December 12, 2003
    Publication date: September 30, 2004
    Inventors: Masahiro Iwata, Noriyuki Kawano, Hiroyuki Kaizawa, Tomofumi Takuwa, Issei Tsukamoto, Ryushi Seo, Kiyoshi Yahiro, Miki Kobayashi, Makoto Takeuchi
  • Patent number: 6740662
    Abstract: 2-Oxo-1,2-dihydro-1,8-naphthyridine derivatives characterized by bearing a specific substituent, —X—R6, at the 3-position and a cyclic substituent, R5, at the 4-position; or salts thereof. The derivatives and the salts are useful as drugs, particularly preventive or therapeutic agents for respiratory diseases related to PDE IV.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: May 25, 2004
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Masahiro Iwata, Noriyuki Kawano, Tomofumi Takuwa, Ryota Shiraki, Miki Kobayashi, Makoto Takeuchi
  • Publication number: 20030232860
    Abstract: Compounds having a high conductance-type of calcium-activated K channel opening effect and a smooth muscle relaxant effect for bladder based on the K-channel opening effect, which can be used in treating pollakiuria and urinary incontinence, are provided. 3,5-Dicyanopyridine derivatives or their salts.
    Type: Application
    Filed: January 17, 2003
    Publication date: December 18, 2003
    Inventors: Hironori Harada, Susumu Watanuki, Tomofumi Takuwa, Kenichi Kawaguchi, Toshio Okazaki, Yuusuke Hirano, Chikasi Saitoh