Patents by Inventor Gaku Sekiguchi

Gaku Sekiguchi 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: 9918975
    Abstract: It is desired to provide a pharmaceutical composition containing a compound represented by formula (I) or a pharmaceutically acceptable salt thereof, or a solvate thereof, which exhibits an inhibitory effect on activated blood coagulation factor X, and is useful as an agent for preventing and/or treating thrombosis, wherein the pharmaceutical composition exhibits favorable dissolution properties. The present invention provides a method for producing a pharmaceutical composition containing a compound represented by formula (I), comprising the step of mixing a compound represented by formula (I) or a pharmaceutically acceptable salt thereof, or a solvate thereof, one or more excipients selected from the group consisting of a sugar alcohol and a water-swelling additive, a disintegrant, and a binder under conditions for keeping the maximum water content of the granules during granulation at 10% or less.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: March 20, 2018
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Makoto Kamada, Gaku Sekiguchi, Motonori Kidokoro
  • Patent number: 9827200
    Abstract: Provided are an orally disintegrating tablet that quickly disintegrates when it is placed in the mouth or put into water, provides favorable taste, has a sufficient hardness in general production, transportation and use and is excellent in terms of storage stability, and a process for the production of the same which is excellent in terms of industrial production. An orally disintegrating tablet containing a drug, a crystalline cellulose having a bulk density of 0.23 g/cm3 or less (preferably from 0.10 g/cm3 to 0.23 g/cm3), a sugar alcohol and a pregelatinized starch.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: November 28, 2017
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Gaku Sekiguchi, Ryoichi Hayakawa, Yoshihiro Hara
  • Patent number: 9707296
    Abstract: To provide pharmaceutical preparation exhibiting satisfactory dissolution property in a wide pH range. The pharmaceutical composition is characterized by containing (A) N1-(5-chloropyridin-2-yl)-N2-((1S,2R,4S)-4-[(dimethylamino)carbonyl]-2-{[(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)carbonyl]amino}cyclohexyl)ethanediamide, represented by the following formula (1), a pharmacologically acceptable salt thereof, or a hydrate of any of these, and (B) one or more species selected from the group consisting of a sugar alcohol and a water-swelling additive.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: July 18, 2017
    Assignee: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Masazumi Kojima, Yoshio Kuno, Hiroaki Nakagami, Shinji Sagasaki, Koichi Ishidoh, Gaku Sekiguchi
  • Publication number: 20150342938
    Abstract: To provide pharmaceutical preparation exhibiting satisfactory dissolution property in a wide pH range. The pharmaceutical composition is characterized by containing (A) N1-(5-chloropyridin-2-yl)-N2-((1S,2R,4S)-4-[(dimethylamino)carbonyl]-2-{[(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)carbonyl]amino}cyclohexyl)ethanediamide, represented by the following formula (1), a pharmacologically acceptable salt thereof, or a hydrate of any of these, and (B) one or more species selected from the group consisting of a sugar alcohol and a water-swelling additive.
    Type: Application
    Filed: August 12, 2015
    Publication date: December 3, 2015
    Inventors: Masazumi KOJIMA, Yoshio KUNO, Hiroaki NAKAGAMI, Shinji SAGASAKI, Koichi ISHIDOH, Gaku SEKIGUCHI
  • Patent number: 9149532
    Abstract: To provide pharmaceutical preparation exhibiting satisfactory dissolution property in a wide pH range. The pharmaceutical composition is characterized by containing (A) N1-(5-chloropyridin-2-yl)-N2-((1S,2R,4S)-4-[(dimethylamino)carbonyl]-2-{[(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)carbonyl]amino}cyclohexyl)ethanediamide, represented by the following formula (1), a pharmacologically acceptable salt thereof, or a hydrate of any of these, and (B) one or more species selected from the group consisting of a sugar alcohol and a water-swelling additive.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: October 6, 2015
    Assignee: Daiichi Sanykyo Company, Limited
    Inventors: Masazumi Kojima, Yoshio Kuno, Hiroaki Nakagami, Shinji Sagasaki, Koichi Ishidoh, Gaku Sekiguchi
  • Publication number: 20150110880
    Abstract: Provided are an orally disintegrating tablet that quickly disintegrates when it is placed in the mouth or put into water, provides favorable taste, has a sufficient hardness in general production, transportation and use and is excellent in terms of storage stability, and a process for the production of the same which is excellent in terms of industrial production. An orally disintegrating tablet containing a drug, a crystalline cellulose having a bulk density of 0.23 g/cm3 or less (preferably from 0.10 g/cm3 to 0.23 g/cm3), a sugar alcohol and a pregelatinized starch.
    Type: Application
    Filed: April 23, 2013
    Publication date: April 23, 2015
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Gaku Sekiguchi, Ryoichi Hayakawa, Yoshihiro Hara
  • Publication number: 20130337064
    Abstract: To provide pharmaceutical preparation exhibiting satisfactory dissolution property in a wide pH range. The pharmaceutical composition is characterized by containing (A) N1-(5-chloropyridin-2-yl)-N2-((1S,2R,4S)-4-[(dimethylamino)carbonyl]-2-{[(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)carbonyl]amino}cyclohexyl)ethanediamide, represented by the following formula (1), a pharmacologically acceptable salt thereof, or a hydrate of any of these, and (B) one or more species selected from the group consisting of a sugar alcohol and a water-swelling additive.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 19, 2013
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Masazumi KOJIMA, Yoshio KUNO, Hiroaki NAKAGAMI, Shinji SAGASAKI, Koichi ISHIDOH, Gaku SEKIGUCHI
  • Patent number: 8449896
    Abstract: It is desired to provide a pharmaceutical composition containing a compound represented by formula (I) or a pharmacologically acceptable salt thereof, or a solvate thereof, which exhibits an inhibitory effect on activated blood coagulation factor X (FXa), and is useful as an agent for preventing and/or treating thrombosis, wherein the pharmaceutical composition exhibits favorable dissolution properties. The present invention relates to a solid pharmaceutical composition containing a compound represented by formula (I) or a pharmacologically acceptable salt thereof, or a solvate thereof, wherein the content of the compound represented by formula (I) is 0.5% by weight or more and less than 15% by weight with respect to the total weight of the pharmaceutical composition.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: May 28, 2013
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Makoto Kamada, Motonori Kidokoro, Gaku Sekiguchi
  • Publication number: 20120114711
    Abstract: It is desired to provide a pharmaceutical composition containing a compound represented by formula (I) or a pharmacologically acceptable salt thereof, or a solvate thereof, which exhibits an inhibitory effect on activated blood coagulation factor X (FXa), and is useful as an agent for preventing and/or treating thrombosis, wherein the pharmaceutical composition exhibits favorable dissolution properties. The present invention relates to a solid pharmaceutical composition containing a compound represented by formula (I) or a pharmacologically acceptable salt thereof, or a solvate thereof, wherein the content of the compound represented by formula (I) is 0.5% by weight or more and less than 15% by weight with respect to the total weight of the pharmaceutical composition.
    Type: Application
    Filed: December 16, 2011
    Publication date: May 10, 2012
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Makoto Kamada, Motonori Kidokoro, Gaku Sekiguchi
  • Publication number: 20100081685
    Abstract: To provide pharmaceutical preparation exhibiting satisfactory dissolution property in a wide pH range. The pharmaceutical composition is characterized by containing (A) N1-(5-chloropyridin-2-yl)-N2-((1S,2R,4S)-4-[(dimethylamino)carbonyl]-2-{[(5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-yl)carbonyl]amino}cyclohexyl)ethanediamide, represented by the following formula (1), a pharmacologically acceptable salt thereof, or a hydrate of any of these, and (B) one or more species selected from the group consisting of a sugar alcohol and a water-swelling additive.
    Type: Application
    Filed: September 29, 2009
    Publication date: April 1, 2010
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Masazumi KOJIMA, Yoshio Kuno, Hiroaki Nakagami, Shinji Sagasaki, Koichi Ishidoh, Gaku Sekiguchi