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: 10532048Abstract: 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: GrantFiled: July 5, 2018Date of Patent: January 14, 2020Assignee: Seldar Pharma Inc.Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
-
Publication number: 20190000832Abstract: 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: ApplicationFiled: July 5, 2018Publication date: January 3, 2019Applicant: Selder Pharma Inc.Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
-
Patent number: 10016410Abstract: 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: GrantFiled: November 14, 2016Date of Patent: July 10, 2018Assignee: Seldar Pharma Inc.Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
-
Publication number: 20170189390Abstract: 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: ApplicationFiled: November 14, 2016Publication date: July 6, 2017Applicant: Seldar Pharma Inc.Inventors: Hiroyuki Hisamichi, ltsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
-
Patent number: 9642852Abstract: 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: GrantFiled: April 17, 2015Date of Patent: May 9, 2017Assignee: Astellas Pharma Inc.Inventors: Nobuyuki Shiraishi, Hiroaki Hoshii, Wataru Hamaguchi, Eriko Honjo, Tomofumi Takuwa, Yuji Kondo, Takayuki Goto
-
Patent number: 9526719Abstract: 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: GrantFiled: August 26, 2015Date of Patent: December 27, 2016Assignee: Seldar Pharma Inc.Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
-
Publication number: 20150359787Abstract: 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: ApplicationFiled: August 26, 2015Publication date: December 17, 2015Applicant: Seldar Pharma Inc.Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
-
Patent number: 9150541Abstract: 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: GrantFiled: July 15, 2013Date of Patent: October 6, 2015Assignee: Seldar Pharma Inc.Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
-
Publication number: 20150231138Abstract: 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: ApplicationFiled: April 17, 2015Publication date: August 20, 2015Applicant: Astellas Pharma Inc.Inventors: Nobuyuki SHIRAISHI, Hiroaki HOSHII, Wataru HAMAGUCHI, Eriko HONJO, Tomofumi TAKUWA, Yuji KONDO, Takayuki GOTO
-
Patent number: 9051339Abstract: 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: GrantFiled: October 17, 2014Date of Patent: June 9, 2015Assignee: Astellas Pharma Inc.Inventors: Nobuyuki Shiraishi, Hiroaki Hoshii, Wataru Hamaguchi, Eriko Honjo, Tomofumi Takuwa, Yuji Kondo, Takayuki Goto
-
Publication number: 20150111876Abstract: 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: ApplicationFiled: October 17, 2014Publication date: April 23, 2015Applicant: Astellas Pharma Inc.Inventors: Nobuyuki Shiraishi, Hiroaki Hoshii, Wataru Hamaguchi, Eriko Honjo, Tomofumi Takuwa, Yuji Kondo, Takayuki Goto
-
Publication number: 20140058100Abstract: 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: ApplicationFiled: July 15, 2013Publication date: February 27, 2014Applicant: Seldar Pharma Inc.Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
-
Patent number: 8486970Abstract: [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: GrantFiled: May 26, 2008Date of Patent: July 16, 2013Assignee: Seldar Pharma Inc.Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
-
Publication number: 20110009379Abstract: [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: ApplicationFiled: March 30, 2009Publication date: January 13, 2011Applicant: ASTELLAS PHARMA INC.Inventors: Hidetaka Kaku, Tomofumi Takuwa, Michihito Kageyama, Katsura Nozawa, Hitoshi Doihara
-
Publication number: 20100227866Abstract: [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: ApplicationFiled: May 26, 2008Publication date: September 9, 2010Applicant: ASTELLAS PHARMA INC.Inventors: Hiroyuki Hisamichi, Itsuro Shimada, Tsukasa Ishihara, Tomofumi Takuwa, Takafumi Shimizu, Noriko Ishikawa, Kyoichi Maeno, Norio Seki
-
Patent number: 7196080Abstract: 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: GrantFiled: June 13, 2002Date of Patent: March 27, 2007Assignee: Astellas Pharma Inc.Inventors: Masahiro Iwata, Noriyuki Kawano, Hiroyuki Kaizawa, Tomofumi Takuwa, Issei Tsukamoto, Ryushi Seo, Kiyoshi Yahiro, Miki Kobayashi, Makoto Takeuchi
-
Publication number: 20040192701Abstract: 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: ApplicationFiled: December 12, 2003Publication date: September 30, 2004Inventors: Masahiro Iwata, Noriyuki Kawano, Hiroyuki Kaizawa, Tomofumi Takuwa, Issei Tsukamoto, Ryushi Seo, Kiyoshi Yahiro, Miki Kobayashi, Makoto Takeuchi
-
Patent number: 6740662Abstract: 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: GrantFiled: April 19, 2002Date of Patent: May 25, 2004Assignee: Yamanouchi Pharmaceutical Co., Ltd.Inventors: Masahiro Iwata, Noriyuki Kawano, Tomofumi Takuwa, Ryota Shiraki, Miki Kobayashi, Makoto Takeuchi
-
Publication number: 20030232860Abstract: 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: ApplicationFiled: January 17, 2003Publication date: December 18, 2003Inventors: Hironori Harada, Susumu Watanuki, Tomofumi Takuwa, Kenichi Kawaguchi, Toshio Okazaki, Yuusuke Hirano, Chikasi Saitoh