Patents by Inventor Shiro Takekawa
Shiro Takekawa 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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Publication number: 20220016215Abstract: The present disclosure provides GIF receptor agonist peptide compounds having an activating action on GIF receptors and use of the GIF receptor agonist peptide as a medicament for the treatment and/or prevention of emesis. Specifically, a GIF receptor agonist peptide containing a sequence represented by the formula (I) or a salt thereof, and a medicament comprising the same are N provided. Formula (I) P1-A1-A2-A3-A4-A5-A6-A7-A8-A9-A10-A11-A12-A13-A14-A15-A16-A17-A18-A19-A20-A21-A22-A23-A24-A25-A26-A27-A28-A29-A30-A31-A32-A33-A34-A35-A36-A37-A38-A39-A40-A41-A42-P2, wherein each symbol is as defined herein, with the proviso that the GIF receptor agonist peptide is not native human GIF having an amino acid sequence as set forth in SEQ ID NO: 1.Type: ApplicationFiled: September 24, 2019Publication date: January 20, 2022Inventors: Shiro TAKEKAWA, Tomoko MORIMOTO, Minoru MARUYAMA, Hiroaki NAGAI, Akira TANAKA, Hisanori MATSUI, Atsuko OBINATA, Derek Cecil COLE, Mack FLINSPACH, Nick SCORAH, Abhijit Suresh BHAT
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Patent number: 11174301Abstract: The present invention provides a novel peptide compound having an activating action on GIP receptors and use of the peptide compound as a medicament. Specifically, a peptide containing a sequence represented by the formula (I) or a salt thereof and a medicament comprising the same are provided. P1-Tyr-A2-Glu-Gly-Thr-A6-A7-A8-A9-A10-A11-A12-A13-A14-A15-A16-A17-A18-A19-A20-A21-A22-A23-A24-A25-A26-A27-A28-A29-A30-A31-A32-A33-A34-A35-A36-A37-A38-A39-A40-P2?? (I) wherein each symbol is as defined herein.Type: GrantFiled: August 29, 2019Date of Patent: November 16, 2021Assignee: Takeda Pharmaceutical Company LimitedInventors: Taiji Asami, Naoki Nishizawa, Ayumu Niida, Yoko Kanematsu, Mari Adachi, Shiro Takekawa, Tomoko Morimoto
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Publication number: 20200140505Abstract: The present invention provides a novel peptide compound having an activating action on GIP receptors and use of the peptide compound as a medicament. Specifically, a peptide containing a sequence represented by the formula (I) or a salt thereof and a medicament comprising the same are provided. P1-Tyr-A2-Glu-Gly-Thr-A6-A7-A8-A9-A10-A11-A12-A13-A14-A15-A16-A17-A18-A19-A20-A21-A22-A23-A24-A25-A26-A27-A28-A29-A30-A31-A32-A33-A34-A35-A36-A37-A38-A39-A40-P2?? (I) wherein each symbol is as defined herein.Type: ApplicationFiled: August 29, 2019Publication date: May 7, 2020Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMTEDInventors: TAIJI ASAMI, NAOKI NISHIZAWA, AYUMU NIIDA, YOKO KANEMATSU, MARI ADACHI, SHIRO TAKEKAWA, TOMOKO MORIMOTO
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Publication number: 20190390169Abstract: The present invention relates to a method for producing pancreatic progenitor cells from pluripotent stem cells. More specifically, the present invention relates to a method for producing pancreatic progenitor cells, comprising causing the action of a factor having the inhibitory activity for cyclin-dependent kinase 8 and/or cyclin-dependent kinase 19 (hereinafter, also abbreviated to CDK8/19).Type: ApplicationFiled: March 2, 2018Publication date: December 26, 2019Applicants: Kyoto University, Takeda Pharmaceutical Company LimitedInventors: Kenji OSAFUNE, Taro TOYODA, Shiro TAKEKAWA, Goshi NAKAMURA, Ryo ITO
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Patent number: 10435445Abstract: The present invention provides a novel peptide compound having an activating action on GIP receptors and use of the peptide compound as a medicament. Specifically, a peptide containing a sequence represented by the formula (I) or a salt thereof and a medicament comprising the same are provided. (I) P1-Tyr-A2-Glu-Gly-Thr-A6-A7-A8-A9-A10-A11-A12-A13- A14-A15-A16-A17-A18-A19-A20-A21-A22-A23-A24-A25- A26-A27-A28-A29-A30-A31-A32-A33-A34-A35-A36-A37- A38-A39-A40-P2 wherein each symbol is as defined herein.Type: GrantFiled: March 30, 2018Date of Patent: October 8, 2019Assignee: TAKEDA PHARMACEUTICAL COMPANY LIMITEDInventors: Taiji Asami, Naoki Nishizawa, Ayumu Niida, Yoko Kanematsu, Mari Adachi, Shiro Takekawa, Tomoko Morimoto
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Publication number: 20180298070Abstract: The present invention provides a novel peptide compound having an activating action on GIP receptors and use of the peptide compound as a medicament. Specifically, a peptide containing a sequence represented by the formula (I) or a salt thereof and a medicament comprising the same are provided. P1-Tyr-A2-Glu-Gly-Thr-A6-A7-A8-A9-A10-A11-A12-A13-A14-A15-A16-A17-A18-A19-A20-A21-A22-A23-A24-A25-A26-A27-A28-A29-A30-A31-A32-A33-A34-A35-A36-A37-A38-A39-A40-P2 ??(I) wherein each symbol is as defined herein.Type: ApplicationFiled: March 30, 2018Publication date: October 18, 2018Applicant: Takeda Pharmaceutical Company LimitedInventors: Taiji Asami, Naoki Nishizawa, Ayumu Niida, Yoko Kanematsu, Mari Adachi, Shiro Takekawa, Tomoko Morimoto
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Patent number: 7601868Abstract: The present invention provides a compound represented by the formula or salts thereof, wherein, Ar1, Ar, R, R1, R2, Ra1, Ra2, Ra3, Ra4 and Y have meanings described in the specification, having a melanin-concentrating hormone antagonistic, action and useful as an agent for the prophylaxis or treatment of obesity and the like.Type: GrantFiled: February 12, 2004Date of Patent: October 13, 2009Assignee: Takeda Pharmaceutical Company LimitedInventors: Yuji Ishihara, Makoto Kamata, Shiro Takekawa
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Publication number: 20070173498Abstract: A melanin-concentrating hormone antagonist which comprises a compound of the formula: wherein Ar1 is a cyclic group which may have substituents; X is a spacer having a main chain of 1 to 6 atoms; Y is a bond or a spacer having a main chain of 1 to 6 atoms; Ar is a monocyclic aromatic ring which may be condensed with a 4 to 8 membered non-aromatic ring, and may have further substituents; R1 and R2 are independently hydrogen atom or a hydrocarbon group which may have substituents; R1 and R2, together with the adjacent nitrogen atom, may form a nitrogen-containing hetero ring which may have substituents; R2 may form a spiro ring together with Ar; or R2, together with the adjacent nitrogen atom and Y, may form a nitrogen-containing hetero ring which may have substituents; or a salt thereof; which is useful as an agent for preventing or treating obesity, etc.Type: ApplicationFiled: September 12, 2005Publication date: July 26, 2007Inventors: Kaneyoshi Kato, Jun Terauchi, Masaaki Mori, Nobuhiro Suzuki, Yukio Shimomura, Shiro Takekawa, Yuji Ishihara
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Patent number: 7229986Abstract: A melanin-concentrating hormone antagonist comprising a compound of the formula: wherein R is hydrogen atom or a cyclic group which may be substituted; X is a bond or a spacer having a main chain of 1 to 10 atoms; Y is a spacer having a main chain of 1 to 6 atoms; ring A is benzene ring which may be further substituted; ring B is a 5- to 9-membered nitrogen-containing non-aromatic heterocyclic ring which may be further substituted; R1 and R2 are the same or different and are hydrogen atom, a hydrocarbon group which may be substituted or a heterocyclic group which may be substituted; or R1 and R2, together with the adjacent nitrogen atom, may form a nitrogen-containing heterocyclic ring which may be substituted; or R2, together with the adjacent nitrogen atom and Y, may form a nitrogen-containing heterocyclic ring which may be substituted; or a salt thereof is useful as a preventive or therapeutic agent for obesity, etc.Type: GrantFiled: May 15, 2001Date of Patent: June 12, 2007Assignee: Takeda Pharmaceutical Company Ltd.Inventors: Yuji Ishihara, Jun Terauchi, Nobuhiro Suzuki, Shiro Takekawa, Kazuyoshi Aso
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Patent number: 7183415Abstract: A compound, which has a melanin-concentrating hormone antagonistic action and useful as an agent for preventing or treating obesity, and which is represented by the formula: wherein Ar is a cyclic group optionally having substituent(s); X is a bond or a spacer having a main chain of 1 to 6 atoms; R1 and R2 are the same or different and each is a hydrogen atom or a hydrocarbon group optionally having substituent(s), or R1 and R2 may form, together with the adjacent nitrogen atom, a nitrogen-containing heterocycle optionally having substituent(s); Y is a divalent hydrocarbon group optionally having substituent(s) (except CO); R3 is a hydrogen atom or a hydrocarbon group optionally having substituent(s); and ring A and ring B may further have substituents, and when ring B further has a substituent, the substituent may be linked to R1 to form a ring, or a salt thereof, or a prodrug thereof, is provided.Type: GrantFiled: October 24, 2002Date of Patent: February 27, 2007Assignee: Takeda Pharmaceutical Company LimitedInventors: Yuji Ishihara, Makoto Kamata, Shiro Takekawa, Nobuhiro Suzuki, Koki Kato
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Publication number: 20060223826Abstract: The present invention provide a compound of the formula (I) wherein ring A represents an aromatic ring optionally having substituents; B, Y and Ya are the same or different and each represents a bond, etc.; R1 and R2 are the same or different and each represents a hydrogen atom, etc.; R3 represents a hydrogen atom, etc.; R4 and R5 are the same or different and each represents a hydrogen, etc.; R6 represents an indolyl group optionally having substituents; and Z and Za are the same or different and each represents a hydrogen atom, etc.; or a salt thereof or a prodrug thereof, having a somatostatin receptor binding inhibition activity and is useful for preventing and/or treating diseases associated with somatostatin.Type: ApplicationFiled: November 18, 2003Publication date: October 5, 2006Applicant: Takeda Pharmaceutical Company Limited Intellectual Property DepartmentInventors: Hidenori Abe, Shinichiro Matsunaga, Shiro Takekawa, Masanori Watanabe
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Patent number: 7115750Abstract: A melanin-concentrating hormone antagonist which comprises a compound of the formula: wherein Ar1 is a cyclic group which may have substituents; X is a spacer having a main chain of 1 to 6 atoms; Y is a bond or a spacer having a main chain of 1 to 6 atoms; Ar is a monocyclic aromatic ring which may be condensed with a 4 to 8 membered non-aromatic ring, and may have further substituents; R1 and R2 are independently hydrogen atom or a hydrocarbon group which may have substituents; R1 and R2, together with the adjacent nitrogen atom, may form a nitrogen-containing hetero ring which may have substituents; R2 may form a spiro ring together with Ar; or R2, together with the adjacent nitrogen atom and Y, may form a nitrogen-containing hetero ring which may have substituents; or a salt thereof; which is useful as an agent for preventing or treating obesity, etc.Type: GrantFiled: September 19, 2000Date of Patent: October 3, 2006Assignee: Takeda Pharmaceutical Company LimitedInventors: Kaneyoshi Kato, Jun Terauchi, Masaaki Mori, Nobuhiro Suzuki, Yukio Shimomura, Shiro Takekawa, Yuji Ishihara
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Patent number: 7091247Abstract: A novel biphenyl compound having GPR 14 antagonistic activity. It is a compound represented by the formula (I): wherein R1 represents hydrogen, etc.; X represents 1 to 12 spacers; A represents amino, etc., R2 and R3 each represents a hydrocarbon group, etc.; and rings B and C each represents an optionally further substituted benzene ring, or a salt thereof.Type: GrantFiled: June 28, 2001Date of Patent: August 15, 2006Assignee: Takeda Pharmaceutical Company LimitedInventors: Naoki Tarui, Takashi Santo, Hiroyuki Watanabe, Kazuyoshi Aso, Tetsuo Miwa, Shiro Takekawa
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Publication number: 20060128690Abstract: The present invention provides a compound represented by the formula wherein Ar1 is a cyclic group optionally having substituent(s); R is a hydrogen atom, an optionally halogenated C1-6 alkyl, a phenyl optionally having substituent(s) or a pyridyl optionally having substituent(s); Ra1, Ra2, Ra3 and Ra4 are the same or different and each is a hydrogen atom, an optionally halogenated C1-6 alkyl or the like; Ar is a monocyclic aromatic ring optionally having substituent(s); Y is an optionally halogenated alkylene group; and R1 and R2 are (1) the same or different and each is a hydrogen atom or a C1-6 alkyl, (2) R1 and R2 form a nitrogen-containing heterocycle optionally having substituent(s) together with the adjacent nitrogen atom, or (3) R1 and Y form a nitrogen-containing heterocycle optionally having substituent(s) together with the adjacent nitrogen atom, and R2 is a hydrogen atom or a C1-6 alkyl; provided that when the nitrogen-containing heterocycle formed by R1 and R2 together with the adjacentType: ApplicationFiled: February 12, 2004Publication date: June 15, 2006Inventors: Yuji Ishihara, Makoto Kamata, Shiro Takekawa
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Patent number: 6991908Abstract: The present invention provides a method for screening a compound or its salt that alters the binding property between MCH or its salt and SLC-1 or its salt, characterized by using MCH or its derivative or a salt thereof and SLC-1 or its salt is useful for screening an SLC-1 agonist which can be used not only as an appetite (eating) promoting agent but also as a prophylactic/therapeutic agent for weak pains, atonic bleeding, before and after expulsion, subinvolution of uterus, cesarean section, induced abortion, galactostasis, and the like, and an SLC-1 antagonist which can be used not only as an antiobestic agents (drug), an appetite (eating) modulator, and the like, but also as a prophylactic/therapeutic agent for hyperstimulation, ankylosing uterine contractions, fetal distress, uterine rupture, cervical laceration, preterm delivery, Prader-Wili syndrome and the like.Type: GrantFiled: December 27, 1999Date of Patent: January 31, 2006Assignee: Takeda Chemical Industries, Ltd.Inventors: Masaaki Mori, Yukio Shimomura, Shiro Takekawa, Tsukasa Sugo, Yoshihiro Ishibashi, Chieko Kitada, Nobuhiro Suzuki
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Publication number: 20050245571Abstract: The present invention provide a compound of the formula: wherein X and X? are the same or different and each represents a hydrogen atom, etc.; R1 and R2 are the same or different and each represents a hydrogen atom, etc.; R3 represents a hydrocarbon group optionally having substituents, etc.; R4 represents a hydrogen atom, etc.; Y and Ya are the same or different and each represents a bond or a spacer having a main chain of 1 to 8 atoms; Z and Za are the same or different and each represents a hydrogen atom, etc.; or a salt thereof or a prodrug thereof, having a somatostatin receptor binding inhibitory activity and is useful for preventing and/or treating diseases associated with somatostatin.Type: ApplicationFiled: October 17, 2002Publication date: November 3, 2005Inventors: Hidenori Abe, Shizuo Kasai, Shiro Takekawa, Masanori Watanabe
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Publication number: 20050209213Abstract: A compound, which has a melanin-concentrating hormone antagonistic action and useful as an agent for preventing or treating obesity, and which is represented by the formula: wherein Ar is a cyclic group optionally having substituent(s); X is a bond or a spacer having a main chain of 1 to 6 atoms; R1 and R2 are the same or different and each is a hydrogen atom or a hydrocarbon group optionally having substituent(s), or R1 and R2 may form, together with the adjacent nitrogen atom, a nitrogen-containing heterocycle optionally having substituent(s); Y is a divalent hydrocarbon group optionally having substituent(s) (except CO); R3 is a hydrogen atom or a hydrocarbon group optionally having substituent(s); and ring A and ring B may further have substituents, and when ring B further has a substituent, the substituent may be linked to R1 to form a ring, or a salt thereof, or a prodrug thereof, is provided.Type: ApplicationFiled: October 24, 2002Publication date: September 22, 2005Applicant: Takeda Chemical Industries, Ltd.Inventors: Yuji Ishihara, Makoto Kamata, Shiro Takekawa, Nobuhiro Suzuki, Koki Kato
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Patent number: 6930185Abstract: A melanin-concentrating hormone antagonist comprising a compound of the formula (I): wherein Ar1 is a cyclic group which may be substituted; X and Y are the same or different and are a spacer having a main chain of 1 to 6 atoms; Ar is a condensed polycyclic aromatic ring which may be substituted; R1 and R2 are the same or different and are hydrogen atom or a hydrocarbon group which may be substituted; or R1 and R2, together with the adjacent nitrogen atom, may form a nitrogen-containing heterocyclic ring which may be substituted; or R2, together with the adjacent nitrogen atom and Y, may form a nitrogen-containing heterocyclic ring which may be substituted; or R2, together with the adjacent nitrogen atom, Y and Ar, may form a condensed ring; or a salt thereof is useful as an agent for preventing or treating obesity, etc.Type: GrantFiled: April 26, 2001Date of Patent: August 16, 2005Assignee: Takeda Chemical Industries, Ltd.Inventors: Yuji Ishihara, Nobuhiro Suzuki, Shiro Takekawa
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Publication number: 20040106792Abstract: A novel biphenyl compound having GPR 14 antagonistic activity.Type: ApplicationFiled: December 20, 2002Publication date: June 3, 2004Inventors: Naoki Tauri, Takashi Santo, Hiroyuki Watanabe, Kazuyoshi Aso, Tetsuo Miwa, Shiro Takekawa
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Publication number: 20040077628Abstract: A melanin-concentrating hormone antagonist comprising a compound of the formula (I): 1Type: ApplicationFiled: October 24, 2002Publication date: April 22, 2004Inventors: Yuji Ishihara, Nobuhiro Suzuki, Shiro Takekawa