Patents by Inventor Kiyoshi Kawamura
Kiyoshi Kawamura 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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Patent number: 12110287Abstract: The present invention relates to heterocyclic derivatives which have blocking activities of voltage gated sodium channels as the Nav1.7 and Nav1.8 channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channels are involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: GrantFiled: December 26, 2019Date of Patent: October 8, 2024Assignee: RaQualia Pharma Inc.Inventors: Tatsuya Yamagishi, Kiyoshi Kawamura, Yuji Shishido, Ryuichi Yamaguchi, Mikio Morita, Norikazu Gaja
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Publication number: 20220048892Abstract: The present invention relates to heterocyclic derivatives which have blocking activities of voltage gated sodium channels as the Nav1.7 and Nav1.8 channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channels are involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: ApplicationFiled: December 26, 2019Publication date: February 17, 2022Applicant: RaQualia Pharma Inc.Inventors: Tatsuya YAMAGISHI, Kiyoshi KAWAMURA, Yuji SHISHIDO, Ryuichi YAMAGUCHI, Mikio MORITA, Norikazu GAJA
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Patent number: 11020381Abstract: The present invention relates to biaryloxy derivatives which have blocking activities of voltage gated sodium channels as the TTX-S channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channel is involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: GrantFiled: August 31, 2018Date of Patent: June 1, 2021Assignees: RaQualia Pharma Inc., XuanZhu Pharma Co., Ltd.Inventors: Kiyoshi Kawamura, Tatsuya Yamagishi, Yuji Shishido, Mikio Morita, Ryuichi Yamaguchi, Masashi Ohmi
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Publication number: 20200230123Abstract: The present invention relates to biaryloxy derivatives which have blocking activities of voltage gated sodium channels as the TTX-S channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channel is involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: ApplicationFiled: August 31, 2018Publication date: July 23, 2020Applicants: RaQualia Pharma Inc., XuanZhu Pharma Co., Ltd.Inventors: Kiyoshi KAWAMURA, Tatsuya YAMAGISHI, Yuji SHISHIDO, Mikio MORITA, Ryuichi YAMAGUCHI, Masashi OHMI
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Patent number: 9944634Abstract: The present invention relates to pyrazolopyridine derivatives which have blocking activities of voltage gated sodium channels as the TTX-S channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channels are involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: GrantFiled: October 31, 2013Date of Patent: April 17, 2018Assignee: RaQualia Pharma Inc.Inventors: Kiyoshi Kawamura, Tatsuya Yamagishi, Yoshimasa Arano, Mikio Morita
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Patent number: 9901571Abstract: The present invention relates to novel compounds of a formula (I) or a pharmaceutically acceptable salt or solvate thereof, processes for their preparation, pharmaceutical compositions comprising them and their use in therapy, for example as modulators of the growth hormone secretagogue receptor (also referred to as the ghrelin receptor or GHSR-1a receptor) and/or for the treatment and/or prophylaxis of a disorder mediated by the ghrelin receptor.Type: GrantFiled: November 2, 2015Date of Patent: February 27, 2018Assignee: RaQualia Pharma Inc.Inventors: Yasuhiro Iwata, Kiyoshi Kawamura, Masaki Sudo, Kaoru Shimada, Shinichi Koizumi, Nobuyuki Takahashi, Keiko Obata, Makiko Kuroda
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Patent number: 9873695Abstract: The present invention relates to novel compounds of formula (I) or a pharmaceutically acceptable salt or solvate thereof, processes for their preparation, pharmaceutical compositions containing them and their use in therapy, for example as modulators of the growth hormone secretagogue receptor (also referred to as the ghrelin receptor or GHSR1a receptor) and/or for the treatment and/or prophylaxis of a disorder mediated by the ghrelin receptor.Type: GrantFiled: August 5, 2015Date of Patent: January 23, 2018Assignee: RaQualia Pharma Inc.Inventors: Yasuhiro Iwata, Kiyoshi Kawamura, Masaki Sudo, Kaoru Shimada, Shinichi Koizumi, Nobuyuki Takahashi, Keiko Obata, Makiko Kuroda
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Publication number: 20170304277Abstract: The present invention relates to novel compounds of a formula (I) or a pharmaceutically acceptable salt or solvate thereof, processes for their preparation, pharmaceutical compositions comprising them and their use in therapy, for example as modulators of the growth hormone secretagogue receptor (also referred to as the ghrelin receptor or GHSR-1a receptor) and/or for the treatment and/or prophylaxis of a disorder mediated by the ghrelin receptor.Type: ApplicationFiled: November 2, 2015Publication date: October 26, 2017Applicant: RaQualia Pharma Inc.Inventors: Yasuhiro IWATA, Kiyoshi KAWAMURA, Masaki SUDO, Kaoru SHIMADA, Shinichi KOIZUMI, Nobuyuki TAKAHASHI, Keiko OBATA, Makiko KURODA
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Publication number: 20170197961Abstract: The present invention relates to novel compounds of formula (I) or a pharmaceutically acceptable salt or solvate thereof, processes for their preparation, pharmaceutical compositions containing them and their use in therapy, for example as modulators of the growth hormone secretagogue receptor (also referred to as the ghrelin receptor or GHSRla receptor) and/or for the treatment and/or prophylaxis of a disorder mediated by the ghrelin receptor.Type: ApplicationFiled: August 5, 2015Publication date: July 13, 2017Applicant: RaQualia Pharma Inc.Inventors: Yasuhiro IWATA, Kiyoshi KAWAMURA, Masaki SUDO, Kaoru SHIMADA, Shinichi KOIZUMI, Nobuyuki TAKAHASHI, Keiko OBATA, Makiko KURODA
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Patent number: 9701658Abstract: The present invention relates to amide derivatives which have blocking activities of voltage gated sodium channels as the TTX-S channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channels are involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: GrantFiled: April 25, 2013Date of Patent: July 11, 2017Assignee: RaQualia Pharma Inc.Inventors: Tatsuya Yamagishi, Kiyoshi Kawamura, Mikio Morita
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Patent number: 9302991Abstract: The present invention relates to arylamide derivatives which have blocking activities of voltage gated sodium channels as the TTX-S channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channels are involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: GrantFiled: October 18, 2011Date of Patent: April 5, 2016Assignee: RaQualia Pharma Inc.Inventors: Tatsuya Yamagishi, Kiyoshi Kawamura, Yoshimasa Arano, Mikio Morita
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Patent number: 9187475Abstract: The present invention relates to pyrrolopyridinone derivatives which have blocking activities of voltage gated sodium channels as the TTX-S channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channels are involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: GrantFiled: April 25, 2013Date of Patent: November 17, 2015Assignee: RaQualia Pharma Inc.Inventors: Kiyoshi Kawamura, Mikio Morita, Tatsuya Yamagishi
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Publication number: 20150291582Abstract: The present invention relates to pyrazolopyridine derivatives which have blocking activities of voltage gated sodium channels as the TTX-S channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channels are involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: ApplicationFiled: October 31, 2013Publication date: October 15, 2015Applicant: RaQualia Pharma Inc.Inventors: Kiyoshi Kawamura, Tatsuya Yamagishi, Yoshimasa Arano, Mikio Morita
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Publication number: 20150105393Abstract: The present invention relates to amide derivatives which have blocking activities of voltage gated sodium channels as the TTX-S channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channels are involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: ApplicationFiled: April 25, 2013Publication date: April 16, 2015Inventors: Tatsuya Yamagishi, Kiyoshi Kawamura, Mikio Morita
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Publication number: 20150094306Abstract: The present invention relates to pyrrolopyridinone derivatives which have blocking activities of voltage gated sodium channels as the TTX-S channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channels are involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: ApplicationFiled: April 25, 2013Publication date: April 2, 2015Inventors: Kiyoshi Kawamura, Mikio Morita, Tatsuya Yamagishi
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Publication number: 20140336377Abstract: The present invention relates to arylamide derivatives which have blocking activities of voltage gated sodium channels as the TTX-S channels, and which are useful in the treatment or prevention of disorders and diseases in which voltage gated sodium channels are involved. The invention also relates to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which voltage gated sodium channels are involved.Type: ApplicationFiled: October 18, 2011Publication date: November 13, 2014Applicant: RAQUALIA PHARMA INC.Inventors: Tatsuya Yamagishi, Kiyoshi Kawamura, Yoshimasa Arano, Mikio Morita
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Patent number: 8829026Abstract: The present invention relates to sulfamoyl benzoic acid heterobicyclic derivatives of the formula (I) or a pharmaceutically acceptable salt thereof or a prodrug thereof, processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of various disorders which are mediated via the TRPMb8 receptor.Type: GrantFiled: October 3, 2011Date of Patent: September 9, 2014Assignee: RaQualia Pharma Inc.Inventors: Kiyoshi Kawamura, Yuji Shishido, Masashi Ohmi
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Patent number: 8710165Abstract: A multibranched polymer represented by the following formula (I), and a method for producing the multibranched polymer: where A represents an organic group having 3 or more branched chains, Xa represents a linking group containing any atom of Groups 14 to 16 in the Periodic Table, Y represents a functional group having a structure capable of having an active halogen atom, Q represents an arm moiety having a repeating unit derived from a polymerizable unsaturated bond, m1 represents any integer of 1 to the number of branched chains of A, m2 represents the number of branched chains of A, n1 represents an integer of 0 or 1 or more, and Ra represents an organic group that is not associated with the polymerization reaction.Type: GrantFiled: February 7, 2011Date of Patent: April 29, 2014Assignee: Nippon Soda Co., Ltd.Inventors: Takeshi Niitani, Kiyoshi Kawamura, Akihiro Shirai
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Publication number: 20130210858Abstract: The present invention relates to sulfamoyl benzoic acid heterobicyclic derivatives of the formula (I) or a pharmaceutically acceptable salt thereof or a prodrug thereof, processes for their preparation, pharmaceutical compositions containing them and their use in the treatment of various disorders which are mediated via the TRPM8 receptor.Type: ApplicationFiled: October 3, 2011Publication date: August 15, 2013Applicant: Raqualia Pharma Inc.Inventors: Kiyoshi Kawamura, Yuji Shishido, Masashi Ohmi
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Patent number: 8362038Abstract: This invention provides a compound of formula (I): wherein R1 represents an alkyl group having from 1 to 4 carbon atoms or a halogen atom, R2 represents an alkyl group having from 1 to 4 carbon atoms, R3 represents a hydrogen atom or a hydroxy group, and A represents an oxygen atom or a group of the formula —C(R4)(R5)— (in which R4 represents a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms and R5 represents a hydroxy group or an alkoxy group having from 1 to 4 carbon atoms) or a pharmaceutically acceptable salts thereof. These compounds have 5-HT4 receptor agonistic activity, and thus are useful for the treatment of gastroesophageal reflux disease, non-ulcer dyspepsia, functional dyspepsia, irritable bowel syndrome or the like in mammalian, especially humans.Type: GrantFiled: February 18, 2010Date of Patent: January 29, 2013Assignee: Pfizer Inc.Inventors: Tomoki Kato, Kiyoshi Kawamura, Chikara Uchida