Patents by Inventor Hiroki Kakuta
Hiroki Kakuta 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: 11103489Abstract: There is provided a drug for preventing or treating inflammatory bowel disease, comprising as an active ingredient an RXR agonist which is a compound represented by Formula (1). In Formula (1), it is preferred that: R1 is an alkyl group; R2 is an alkyl group; W is NR3, and R3 is an alkyl group; X1 is CH; Y1 is N; X2 and Y2 are CH; and Z is a carboxyl group. Thus, a drug capable of strongly preventing or treating inflammatory bowel disease while suppressing the onset of side effects is provided.Type: GrantFiled: June 29, 2016Date of Patent: August 31, 2021Assignee: NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventor: Hiroki Kakuta
-
Patent number: 11026932Abstract: A method for treating an inflammatory respiratory disease, comprising administering an effective amount of an RXR agonist represented by formula (1) or (2) as an active ingredient. wherein D, R1, R2, X, Y, Z, R3, R4, X1, Y1, X2, Y2 and Z1 are defined.Type: GrantFiled: September 9, 2016Date of Patent: June 8, 2021Assignee: NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventors: Arihiko Kanehiro, Utako Fujii, Daisuke Morichika, Naohiro Oda, Nobuaki Miyahara, Akihiko Taniguchi, Hiroki Kakuta
-
Patent number: 10940210Abstract: The present invention provides: a complex of a mercaptoundecahydrodecaborate (BSH) and a peptide, the complex for boron neutron capture therapy (BNCT); a method for producing the complex; and a cancer therapy using the complex.Type: GrantFiled: September 10, 2020Date of Patent: March 9, 2021Assignee: National University Corporation Okayama UniversityInventors: Hideki Matsui, Shuichi Furuya, Hiroyuki Michiue, Hiroki Kakuta, Yasuaki Takeuchi
-
Patent number: 10894088Abstract: The present invention provides: a complex of a mercaptoundecahydrodecaborate (BSH) and a peptide, the complex for boron neutron capture therapy (BNCT); a method for producing the complex; and a cancer therapy using the complex.Type: GrantFiled: November 24, 2017Date of Patent: January 19, 2021Assignee: National University Corporation Okayama UniversityInventors: Hideki Matsui, Shuichi Furuya, Hiroyuki Michiue, Hiroki Kakuta, Yasuaki Takeuchi
-
Publication number: 20200397910Abstract: The present invention provides: a complex of a mercaptoundecahydrodecaborate (BSH) and a peptide, the complex for boron neutron capture therapy (BNCT); a method for producing the complex; and a cancer therapy using the complex.Type: ApplicationFiled: September 10, 2020Publication date: December 24, 2020Applicant: National University Corporation Okayama UniversityInventors: HIDEKI MATSUI, Shuichi Furuya, Hiroyuki Michiue, Hiroki Kakuta, Yasuaki Takeuchi
-
Publication number: 20200179353Abstract: A method for treating an inflammatory respiratory disease, comprising administering an effective amount of an RXR agonist represented by formula (1) or (2) as an active ingredient. wherein D, R1, R2, X, Y, Z, R3, R4, X1, Y1, X2, Y2 and Z1 are defined.Type: ApplicationFiled: September 9, 2016Publication date: June 11, 2020Applicant: NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventors: Arihiko KANEHIRO, Utako FUJII, Daisuke MORICHIKA, Naohiro ODA, Nobuaki MIYAHARA, Akihiko TANIGUCHI, Hiroki KAKUTA
-
Publication number: 20200121800Abstract: The present invention provides: a complex of a mercaptoundecahydrodecaborate (BSH) and a peptide, the complex for boron neutron capture therapy (BNCT); a method for producing the complex; and a cancer therapy using the complex.Type: ApplicationFiled: November 24, 2017Publication date: April 23, 2020Applicant: National University Corporation Okayama UniversityInventors: Hideki MATSUI, Shuichi FURUYA, Hiroyuki MICHIUE, Hiroki KAKUTA, Yusuaki TAKEUCHI
-
Patent number: 10285985Abstract: There is provided a pharmaceutical composition for treatment or prevention of a neurodegenerative disease, comprising an RXR agonist as an active ingredient, which is a compound represented by formula (1) or (2). The pharmaceutical composition is effective in treatment or prevention of neurodegenerative diseases such as dementia, Parkinson's disease and multiple sclerosis with reducing side effects such as enlargement of the liver and elevation of blood triglyceride level. In these formulas, A represents CMe2, N-methyl, N-ethyl or N-isopropyl; X represents N, CH or C—CF3; Y and Z represent N or CH; R1 represents methyl, hydroxy, methoxy or ethoxy; R2 represents H, methyl or ethyl; B represents NR3 or CHR3; R3 represents alkyl; and R4 represents H, halogen, alkyl, alkenyl, aryl, alkynyl, alkoxy or acyl.Type: GrantFiled: March 31, 2016Date of Patent: May 14, 2019Assignee: NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventor: Hiroki Kakuta
-
Publication number: 20180185342Abstract: There is provided a drug for preventing or treating inflammatory bowel disease, comprising as an active ingredient an RXR agonist which is a compound represented by Formula (1). In Formula (1), it is preferred that: R1 is an alkyl group; R2 is an alkyl group; W is NR3, and R3 is an alkyl group; X1 is CH; Y1 is N; X2 and Y2 are CH; and Z is a carboxyl group. Thus, a drug capable of strongly preventing or treating inflammatory bowel disease while suppressing the onset of side effects is provided.Type: ApplicationFiled: June 29, 2016Publication date: July 5, 2018Applicant: NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventor: Hiroki KAKUTA
-
Publication number: 20180092888Abstract: There is provided a pharmaceutical composition for treatment or prevention of a neurodegenerative disease, comprising an RXR agonist as an active ingredient, which is a compound represented by formula (1) or (2). The pharmaceutical composition is effective in treatment or prevention of neurodegenerative diseases such as dementia, Parkinson's disease and multiple sclerosis with reducing side effects such as enlargement of the liver and elevation of blood triglyceride level. In these formulas, A represents CMe2, N-methyl, N-ethyl or N-isopropyl; X represents N, CH or C—CF3; Y and Z represent N or CH; R1 represents methyl, hydroxy, methoxy or ethoxy; R2 represents H, methyl or ethyl; B represents NR3 or CHR3; R3 represents alkyl; and R4 represents H, halogen, alkyl, alkenyl, aryl, alkynyl, alkoxy or acyl.Type: ApplicationFiled: March 31, 2016Publication date: April 5, 2018Applicant: NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventor: Hiroki KAKUTA
-
Patent number: 9724434Abstract: There is provided a lysine oligomer derivative, wherein an ?-amino group and a carboxyl group of lysines are linked via a peptide bond, and a group capable of generating or absorbing electromagnetic wave is bonded to a C-terminal carboxyl group, an N-terminal amino group and/or an ?-amino group. This lysine oligomer derivative has the characteristic of specifically accumulating in the cartilage matrix and can generate or absorb an electromagnetic wave, and is, therefore, useful as a cartilage tissue marker.Type: GrantFiled: March 13, 2013Date of Patent: August 8, 2017Assignee: NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventors: Toshitaka Oohashi, Hiroki Kakuta
-
Publication number: 20150080551Abstract: There is provided a lysine oligomer derivative, wherein an ?-amino group and a carboxyl group of lysines are linked via a peptide bond, and a group capable of generating or absorbing electromagnetic wave is bonded to a C-terminal carboxyl group, an N-terminal amino group and/or an ?-amino group. This lysine oligomer derivative has the characteristic of specifically accumulating in the cartilage matrix and can generate or absorb an electromagnetic wave, and is, therefore, useful as a cartilage tissue marker.Type: ApplicationFiled: March 13, 2013Publication date: March 19, 2015Applicant: NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventors: Toshitaka Oohashi, Hiroki Kakuta
-
Patent number: 8389538Abstract: Disclosed is a compound represented by the general formula shown below, which can bind to a retinoid X receptor (RXR), which is one of nuclear receptors, and exhibit an agonistic or antagonistic action. [Wherein, R1 is selected from the group consisting of an alkyl group, an alkenyl group, an alkynyl group and an aryl group. R2 is selected from the group consisting of an alkoxy group, an alkyl group, an alkenyl group, an alkynyl group and an aryl group. W is NR3 or CR3; and R3 is selected from a hydrogen, an alkyl group, an alkenyl group, an alkynyl group and an aryl group. X1 and Y1 are selected from CH or N. X2 and Y2 are selected from CH, CR4 or N. R4 is selected from an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, a halogen, a nitro group and an amino group. Z is selected from a carboxylic acid, a carboxylate ester or a hydroxamic acid, which is bound directly or via an alkyl group, an alkenyl group or an alkynyl group.Type: GrantFiled: February 26, 2008Date of Patent: March 5, 2013Assignee: National University Corporation Okayama UniversityInventors: Hiroki Kakuta, Kenji Sasaki, Kayo Takamatsu, Atsushi Takano, Nobumasa Yakushiji, Kazunori Morohashi, Kenichi Morishita
-
Publication number: 20100120742Abstract: Disclosed is a compound represented by the general formula shown below, which can bind to a retinoid X receptor (RXR), which is one of nuclear receptors, and exhibit an agonistic or antagonistic action. [Wherein, R1 is selected from the group consisting of an alkyl group, an alkenyl group, an alkynyl group and an aryl group. R2 is selected from the group consisting of an alkoxy group, an alkyl group, an alkenyl group, an alkynyl group and an aryl group. W is NR3 or CR3; and R3 is selected from a hydrogen, an alkyl group, an alkenyl group, an alkynyl group and an aryl group. X1 and Y1 are selected from CH or N. X2 and Y2 are selected from CH, CR4 or N. R4 is selected from an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, a halogen, a nitro group and an amino group. Z is selected from a carboxylic acid, a carboxylate ester or a hydroxamic acid, which is bound directly or via an alkyl group, an alkenyl group or an alkynyl group.Type: ApplicationFiled: February 26, 2008Publication date: May 13, 2010Applicant: National University Corporation Okayama UniversityInventors: Hiroki Kakuta, Kenji Sasaki, Kayo Takamatsu, Atsushi Takano, Nobumasa Yakushji, Kazunore Morohashi, Kenichi Morishita
-
Publication number: 20100069443Abstract: This invention provides a novel COX-1-selective inhibitor. This invention relates to a novel compound represented by the formula below or a salt thereof. This invention also relates to an analgesic agent, an antiinflammatory agent, an antitumor agent, an antiplatelet aggregation agent, and a cyclooxygenase-1-selective inhibitor comprising, as an active ingredient, such compound or salt thereof.Type: ApplicationFiled: September 7, 2007Publication date: March 18, 2010Applicant: National University Corporation Okayama UniversityInventors: Hiroki KAKUTA, Kenji SASAKI, Hiroyuki ODA, Xiaoxia ZHENG, Shun HARADA