Patents by Inventor Satoshi Nagato

Satoshi Nagato 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).

  • Publication number: 20230413287
    Abstract: To appropriately perform communication even when transmission with repetition is applied to DL channels transmitted from one or more TRPs. A terminal according to an aspect of the present disclosure includes a receiving section that receives multiple downlink control information transmitted using respective downlink control channels to which transmission with repetition is applied; and a control section that controls, when a downlink shared channel overlaps a resource in a control resource set including a downlink control channel to which the transmission with repetition is applied, not to use resources corresponding to a downlink control channel scheduling the downlink shared channel and a demodulation reference signal resource for an associated downlink control channel, for the downlink shared channel.
    Type: Application
    Filed: November 2, 2021
    Publication date: December 21, 2023
    Applicant: NTT DOCOMO, INC.
    Inventors: Yuki Matsumura, Satoshi Nagato, Weiqi Sun, Jing Wang, Lan Chen
  • Patent number: 9045426
    Abstract: The present inventions provide a method for commercially producing a 1,2 -dihydropyridine-2-one compound represented by the following formula (III-a) wherein the ring A represents an optionally substituted 2-pyridyl group, the ring B represents an optionally substituted phenyl group, and the ring C represents an optionally substituted phenyl group. Further, the invention provides crystals of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2 -dihydropyridin-2-one and production processes therefore.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: June 2, 2015
    Assignee: EISAI R&D MANAGEMENT CO., LTD.
    Inventors: Itaru Arimoto, Satoshi Nagato, Yukiko Sugaya, Yoshio Urawa, Koichi Ito, Hiroyuki Naka, Takao Omae, Akio Kayano, Katsutoshi Nishiura
  • Patent number: 8772497
    Abstract: The present inventions provide a method for commercially producing a 1,2-dihydropyridine-2-one compound represented by the following formula (III-a) wherein the ring A represents an optionally substituted 2-pyridyl group, the ring B represents an optionally substituted phenyl group, and the ring C represents an optionally substituted phenyl group. Further, the invention provides crystals of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one and production processes therefore.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: July 8, 2014
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Itaru Arimoto, Satoshi Nagato, Yukiko Sugaya, Yoshio Urawa, Koichi Ito, Hiroyuki Naka, Takao Omae, Akio Kayano, Katsutoshi Nishiura
  • Publication number: 20140142315
    Abstract: The present inventions provide a method for commercially producing a 1,2-dihydropyridine-2-one compound represented by the following formula (III-a) wherein the ring A represents an optionally substituted 2-pyridyl group, the ring B represents an optionally substituted phenyl group, and the ring C represents an optionally substituted phenyl group. Further, the invention provides crystals of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one and production processes therefore.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: EISAI R&D MANAGEMENT CO., LTD.
    Inventors: Itaru ARIMOTO, Satoshi NAGATO, Yukiko SUGAYA, Yoshio URAWA, Koichi ITO, Hiroyuki NAKA, Takao OMAE, Akio KAYANO, Katsutoshi NISHIURA
  • Patent number: 7939549
    Abstract: The present invention provides a novel compound having an excellent AMPA receptor inhibitory action and/or kainate inhibitory action. A compound represented by the following formula, a salt thereof or hydrates thereof. In the formula, Q indicates NH, O or S; and R1, R2, R3, R4 and R5 are the same as or different from each other and each indicates hydrogen atom, a halogen atom, a C1-6 alkyl group or a group represented by the formula —X-A (wherein X indicates a single bond, an optionally substituted C1-6 alkylene group etc.; and A indicates an optionally substituted C6-14 aromatic hydrocarbocyclic group or 5- to 14-membered aromatic heterocyclic group etc.).
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: May 10, 2011
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Satoshi Nagato, Kohshi Ueno, Koki Kawano, Yoshihiko Norimine, Koichi Ito
  • Publication number: 20100324297
    Abstract: The present inventions provide a method for commercially producing a 1,2-dihydropyridine-2-one compound represented by the following formula (III-a) wherein the ring A represents an optionally substituted 2-pyridyl group, the ring B represents an optionally substituted phenyl group, and the ring C represents an optionally substituted phenyl group. Further, the invention provides crystals of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one and production processes therefore.
    Type: Application
    Filed: August 27, 2010
    Publication date: December 23, 2010
    Inventors: Itaru ARIMOTO, Satoshi Nagato, Yukiko Sugaya, Yoshio Urawa, Koichi Ito, Hiroyuki Naka, Takao Omae, Akio Yayano, Katsutoshi Nishiura
  • Patent number: 7718807
    Abstract: An acid addition salt of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one or a hydrate thereof, wherein the acid is selected from the group consisting of benzenesulfonic acid, p-toluenesulfonic acid, hydrochloric acid, hydrobromic acid, sulfuric acid, methanesulfonic acid, fumaric acid, tartaric acid, succinic acid and benzoic acid.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: May 18, 2010
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Satoshi Nagato, Kohshi Ueno, Hiroshi Ishihara, Yukiko Sugaya, Koichi Ito
  • Publication number: 20090275751
    Abstract: The present invention provides a novel compound having an excellent AMPA receptor inhibitory action and/or kainate inhibitory action. A compound represented by the following formula, a salt thereof or hydrates thereof. In the formula, Q indicates NH, O or S; and R1, R2, R3, R4 and R5 are the same as or different from each other and each indicates hydrogen atom, a halogen atom, a C1-6 alkyl group or a group represented by the formula —X-A (wherein X indicates a single bond, an optionally substituted C1-6 alkylene group etc.; and A indicates an optionally substituted C6-14 aromatic hydrocarbocyclic group or 5- to 14-membered aromatic heterocyclic group etc.).
    Type: Application
    Filed: February 27, 2009
    Publication date: November 5, 2009
    Inventors: Satoshi NAGATO, Kohshi Ueno, Koki Kawano, Yoshihiko Norimine, Koichi Ito, Takaisa Hanada, Masatake Ueno, Hiroyuki Amino, Makoto Ogo, Shinji Hatakeyama, Yoshio Urawa, Hiroyuki Naka, Anthony John Groom, Leanne Rivers, Terrence Smith
  • Patent number: 7563811
    Abstract: The present invention provides a novel compound having an excellent AMPA receptor inhibitory action and/or kainate inhibitory action. A compound represented by the following formula, a salt thereof or hydrates thereof. In the formula, Q indicates NH, O or S; and R1, R2, R3, R4 and R5 are the same as or different from each other and each indicates hydrogen atom, a halogen atom, a C1-6 alkyl group or a group represented by the formula —X-A (wherein X indicates a single bond, an optionally substituted C1-6 alkylene group etc.; and A indicates an optionally substituted C6-14 aromatic hydrocarbocyclic group or 5- to 14-membered aromatic heterocyclic group etc.).
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: July 21, 2009
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Satoshi Nagato, Kohshi Ueno, Koki Kawano, Yoshihiko Norimine, Koichi Ito, Takahisa Hanada, Masataka Ueno, Hiroyuki Amino, Makoto Ogo, Shinji Hatakeyama, Yoshio Urawa, Hiroyuki Naka, Anthony John Groom, Leanne Rivers, Terence Smith
  • Publication number: 20090054654
    Abstract: An acid addition salt of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one or a hydrate thereof, wherein the acid is selected from the group consisting of benzenesulfonic acid, p-toluenesulfonic acid, hydrochloric acid, hydrobromic acid, sulfuric acid, methanesulfonic acid, fumaric acid, tartaric acid, succinic acid and benzoic acid.
    Type: Application
    Filed: April 27, 2007
    Publication date: February 26, 2009
    Inventors: Satoshi Nagato, Kohshi Ueno, Hiroshi Ishihara, Yukiko Sugaya, Koichi Ito
  • Publication number: 20070142640
    Abstract: The present inventions provide a method for commercially producing a 1,2-dihydropyridine-2-one compound represented by the following formula (III-a) wherein the ring A represents an optionally substituted 2-pyridyl group, the ring B represents an optionally substituted phenyl group, and the ring C represents an optionally substituted phenyl group. Further, the invention provides crystals of 3-(2-cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one and production processes therefor.
    Type: Application
    Filed: January 4, 2007
    Publication date: June 21, 2007
    Inventors: Itaru Arimoto, Satoshi Nagato, Yukiko Sugaya, Yoshio Urawa, Koichi Ito, Hiroyuki Naka, Takao Omae, Akio Kayano, Katsutoshi Nishiura
  • Publication number: 20060189622
    Abstract: The present invention provides a novel compound exhibiting an excellent inhibitory action on AMPA receptor and/or kainate receptor. That is, it provides a compound represented by the following formula, a salt thereof or a hydrate of them. In the formula, A1, A2 and A3 are independent of each other and each represents a C3-8 cycloalkyl group, a C3-8 cycloalkenyl group, a 5- to 14-membered non-aromatic heterocyclic group, a C6-14 aromatic hydrocarbon cyclic group or a 5- to 14-membered aromatic heterocyclic group, each of which may be substituted; Q represents O, S or NH; Z represents C or N; X1, X2 and X3 are independent of each other and each represents a single bond, an optionally substituted C1-6 alkylene group, an optionally substituted C2-6 alkenylene group, an optionally substituted C2-6 alkynylene group, —NH—, —O—, —NHCO—, —CONH—, —SO0-2—, etc.
    Type: Application
    Filed: April 21, 2006
    Publication date: August 24, 2006
    Inventors: Satoshi Nagato, Koki Kawano, Koichi Ito, Yoshihiko Norimine, Kohshi Ueno, Takahisa Hanada, Hiroyuki Amino, Makoto Ogo, Shinji Hatakeyama, Masataka Ueno, Anthony Groom, Leanne Rivers, Terence Smith
  • Publication number: 20050245581
    Abstract: The present invention provides a novel compound having an excellent AMPA receptor inhibitory action and/or kainate inhibitory action. A compound represented by the following formula, a salt thereof or hydrates thereof. In the formula, Q indicates NH, O or S; and R1, R2, R3, R4 and R5 are the same as or different from each other and each indicates hydrogen atom, a halogen atom, a C1-6 alkyl group or a group represented by the formula —X-A (wherein X indicates a single bond, an optionally sbutituted C1-6 alkylene group etc.; and A indicates an optionally substituted C6-14 aromatic hydrocarbocyclic group or 5- to 14-membered aromatic heterocyclic group etc.).
    Type: Application
    Filed: July 6, 2005
    Publication date: November 3, 2005
    Inventors: Satoshi Nagato, Kohshi Ueno, Koki Kawano, Yoshihiko Norimine, Koichi Ito, Takahisa Hanada, Masataka Ueno, Hiroyuki Amino, Makoto Ogo, Shinji Hatakeyama, Yoshio Urawa, Hiroyuki Naka, Anthony Groom, Leanne Rivers, Terence Smith
  • Patent number: 6949571
    Abstract: The present invention provides a novel compound having an excellent AMPA receptor inhibitory action and/or kainate inhibitory action. A compound represented by the following formula, a salt thereof or hydrates thereof. In the formula, Q indicates NH, O or S; and R1, R2, R3, R4 and R5 are the same as or different from each other and each indicates hydrogen atom, a halogen atom, a C1-6 alkyl group or a group represented by the formula —X-A (wherein X indicates a single bond, an optionally substituted C1-6 alkylene group etc.; and A indicates an optionally substituted C6-14 aromatic hydrocarbocyclic group or 5- to 14-membered aromatic heterocyclic group etc.).
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: September 27, 2005
    Assignee: Eisai Co., Ltd.
    Inventors: Satoshi Nagato, Kohshi Ueno, Koki Kawano, Yoshihiko Norimine, Koichi Ito, Takahisa Hanada, Masataka Ueno, Hiroyuki Amino, Makoto Ogo, Shinji Hatakeyama, Anthony John Groom, Leanne Rivers, Terence Smith
  • Patent number: 6825192
    Abstract: The present invention provides a hetrodiazinon compound having 2-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptor antagonistic action, which is represented by the following formula (I), a pharmacologically acceptable salt thereof or hydrates thereof. Wherein A represents O, S or a group represented by the formula NR3 (wherein R3 represents hydrogen atom or a lower alkyl group); R1 and R2 are the same as or different from each other and each represents an optionally substituted (hetero)aryl group etc.; and R4 and R5 are the same as or different from each other and each represents hydrogen atom, hydroxy, a halogen atom, nitrile group, nitro group, a lower alkyl group, a (hetero)aryl group etc.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: November 30, 2004
    Assignee: Eisai Co., Ltd.
    Inventors: Koichi Ito, Noritaka Kitazawa, Satoshi Nagato, Akiharu Kajiwara, Tatsuto Fukushima, Shinji Hatakeyama, Takahisa Hanada, Masataka Ueno, Kohshi Ueno, Koki Kawano
  • Patent number: 6737425
    Abstract: The invention provides an N,N-substituted cyclic amine compound represented by the following formula (VIII): wherein A represents an aryl group etc.; E represents a group represented by the formula —CO— or a group represented by the formula —CHOH—; G represents an oxygen atom etc.; J represents an aryl group which may be substituted; R1 represents a lower alkyl group etc.; Alk represents a linear or branched lower alkylene group; n, v, w, x and y are independent of each other and each represents 0 or 1; and p represents 2 or 3, or a pharmacologically acceptable salt thereof. The compound of the present invention or a salt thereof is effective to treat a disease against which calcium antagonism is effective.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: May 18, 2004
    Assignee: Eisai Co., Ltd.
    Inventors: Noboru Yamamoto, Makoto Komatsu, Yuichi Suzuki, Koki Kawano, Teiji Kimura, Koichi Ito, Satoshi Nagato, Yoshihiko Norimine, Tetsuhiro Niidome, Tetsuyuki Teramoto, Yoichi Iimura, Shinji Hatakeyama
  • Publication number: 20040023973
    Abstract: The present invention provides a novel compound having an excellent AMPA receptor inhibitory action and/or kainate inhibitory action. A compound represented by the following formula, a salt thereof or hydrates thereof.
    Type: Application
    Filed: November 26, 2002
    Publication date: February 5, 2004
    Inventors: Satoshi Nagato, Kohshi Ueno, Koki Kawano, Yoshihiko Norimine, Koichi Ito, Takahisa Hanada, Masataka Ueno, Hiroyuki Amino, Makoto Ogo, Shinji Hatakeyama, Yoshio Urawa, Hiroyuki Naka, Anthony John Groom, Leanne Rivers
  • Patent number: 6667412
    Abstract: The present invention provides a novel nitrile compound useful as an intermediate for the production of, for example, N,N-substituted cyclic amine derivatives or phenylacetonitrile derivatives that are useful as a medicine. Specifically it provides a nitrile carboxylic acid compound, nitrile ester compound and nitrile alcohol compound. That is, it provides a nitrile compound represented by the following formula (I): wherein R1 and R2 means substituents; m means 0 or an integer of from 1 to 6; n means 0 or an integer of from 1 to 5; and R3 means carboxyl group, a lower alkoxycarbonyl group or hydroxymethyl group.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: December 23, 2003
    Assignee: Eisai Co., Ltd.
    Inventors: Yuichi Suzuki, Noboru Yamamoto, Koki Kawano, Teiji Kimura, Koichi Ito, Satoshi Nagato, Yoshihiko Norimine, Yoichi Iimura
  • Publication number: 20030225081
    Abstract: The present invention provides a novel compound exhibiting an excellent inhibitory action on AMPA receptor and/or kainate receptor. That is, it provides a compound represented by the following formula, a salt thereof or a hydrate of them.
    Type: Application
    Filed: March 18, 2003
    Publication date: December 4, 2003
    Inventors: Satoshi Nagato, Koki Kawano, Koichi Ito, Yoshihiko Norimine, Koshi Ueno, Takahisa Hanada, Hiroyuki Amino, Makoto Ogo, Shinji Hatakeyama, Masataka Ueno, Anthony John Groom, Leanne Rivers, Terence Smith
  • Patent number: 6281214
    Abstract: A biphenyl derivative represented by the following formula (I) or a pharmacologically acceptable salt thereof: wherein R1, R2, R3, R4, and R5 are defined in the specification, is clinically useful for treating and ameliorating mental disorders such as cerebrovascular disorder, aggressive behavior due to senile dementia, mental excitation, poriomania, delirium, hallucination, hyperkinesia, schizophrenia, emotional disturbance, depression, neurosis, psychophysiologic disorder and anxiety neurosis. The compounds exhibit dopamine 2 receptor antagonism and/or serotonin 2 receptor antagonism.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: August 28, 2001
    Assignee: Eisai Co., Ltd
    Inventors: Kozo Akasaka, Masahiro Yonaga, Akiharu Kajiwara, Kunizo Higurashi, Kohshi Ueno, Satoshi Nagato, Makoto Komatsu, Noritaka Kitazawa, Masataka Ueno, Yoshiharu Yamanishi, Yoshimasa Machida, Yuki Komatsu, Naoyuki Shimomura, Norio Minami, Toshikazu Shimizu, Atsushi Nagaoka