Patents by Inventor Hiroyoshi Koyama

Hiroyoshi Koyama 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: 9320714
    Abstract: The present invention can retain the volume of a tablet large without increasing the thickness of the tablet or the like dimension and prevents a plurality of tablets from sticking to each other even if they are subjected to a film-coating or the like treatment, so as to improve the yield. The tablet is a tablet (1) longer in one direction when seen in plan. The tablet (1) has side edges (6) each of which extends in a longitudinal direction and is formed in the shape of a curve projecting outwardly in plan view. The curve has a radius of curvature (R1) set to at least 1.5 times a length (L) of the tablet. This makes a projected area of the tablet (1) in plan view at least 97% with respect to a projected area of a standard elliptical tablet having opposite end portions each of which is formed by a semi-circle having a diameter of a width (W) of the tablet.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: April 26, 2016
    Assignee: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Masahiko Koike, Hiroyoshi Koyama
  • Patent number: 9101660
    Abstract: The present invention provides a solid preparation containing an insulin sensitizer and an active ingredient (except insulin sensitizers), which is useful as a therapeutic drug for diabetes and the like, and which is superior in preparation characteristics such as content uniformity and dissolution property of the insulin sensitizer and the active ingredient (except insulin sensitizers), preparation hardness and the like.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: August 11, 2015
    Assignee: Takeda Pharmaceutical Company
    Inventors: Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
  • Patent number: 8900638
    Abstract: The present invention provides a solid preparation containing compound (I) [compound (I) is as defined in the specification] or a salt thereof, and metformin hydrochloride, which is useful as a therapeutic drug for diabetes and the like, and superior in the preservation stability. A solid preparation having a first part and a second part: a first part: a part containing compound (I) or a salt thereof and substantially free of metformin hydrochloride a second part: a part containing metformin hydrochloride and substantially free of compound (I) and a salt thereof.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: December 2, 2014
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Kazumichi Yamamoto, Hiroyoshi Koyama
  • Patent number: 8865217
    Abstract: The present invention provides an oral preparation sufficiently masking the bitter taste of pioglitazone and a salt thereof. The present invention provides an oral preparation containing pioglitazone or a salt thereof and alkali metal chloride.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: October 21, 2014
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Kazuhiro Okochi, Hiroyoshi Koyama, Arisa Maeda
  • Patent number: 8263121
    Abstract: The present invention provides a solid preparation containing an insulin sensitizer and an active ingredient (except insulin sensitizers), which shows in vivo dissolution behavior of an insulin sensitizer, which is similar to the dissolution behavior of an insulin sensitizer from “a solid preparation containing an insulin sensitizer alone as an active ingredient”. The present invention provides a solid preparation containing (1) a layer containing an insulin sensitizer, and (2) a layer containing (a) an active ingredient (except insulin sensitizers), (b) microcrystalline cellulose having a mean particle size of 5-25 ?m, (c) microcrystalline cellulose having a mean particle size of 30-100 ?m and (d) polyvinylpyrrolidone K-90.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: September 11, 2012
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
  • Publication number: 20110189282
    Abstract: The present invention can retain the volume of a tablet large without increasing the thickness of the tablet or the like dimension and prevents a plurality of tablets from sticking to each other even if they are subjected to a film-coating or the like treatment, so as to improve the yield. The tablet is a tablet (1) longer in one direction when seen in plan. The tablet (1) has side edges (6) each of which extends in a longitudinal direction and is formed in the shape of a curve projecting outwardly in plan view. The curve has a radius of curvature (R1) set to at least 1.5 times a length (L) of the tablet. This makes a projected area of the tablet (1) in plan view at least 97% with respect to a projected area of a standard elliptical tablet having opposite end portions each of which is formed by a semi-circle having a diameter of a width (W) of the tablet.
    Type: Application
    Filed: April 8, 2011
    Publication date: August 4, 2011
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Masahiko Koike, Hiroyoshi Koyama
  • Patent number: 7976853
    Abstract: The present invention provides a production method of a preparation coated with pioglitazone hydrochloride, which is useful as a therapeutic agent for diabetes and the like, and which is superior in the characteristics of the preparation such as dissolution property of pioglitazone hydrochloride.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: July 12, 2011
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Kazuhiro Ohkouchi, Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
  • Publication number: 20110014299
    Abstract: The present invention provides a solid preparation containing compound (I) [compound (I) is as defined in the specification] or a salt thereof, and metformin hydrochloride, which is useful as a therapeutic drug for diabetes and the like, and superior in the preservation stability. A solid preparation having a first part and a second part: a first part: a part containing compound (I) or a salt thereof and substantially free of metformin hydrochloride a second part: a part containing metformin hydrochloride and substantially free of compound (I) and a salt thereof.
    Type: Application
    Filed: July 16, 2008
    Publication date: January 20, 2011
    Applicant: Takeda Pharmaceutical Company Limited
    Inventors: Kazumichi Yamamoto, Hiroyoshi Koyama
  • Publication number: 20100136122
    Abstract: The present invention provides an oral preparation sufficiently masking the bitter taste of pioglitazone and a salt thereof. The present invention provides an oral preparation containing pioglitazone or a salt thereof and alkali metal chloride.
    Type: Application
    Filed: May 22, 2007
    Publication date: June 3, 2010
    Inventors: Kazuhiro Okochi, Hiroyoshi Koyama, Arisa Maeda
  • Publication number: 20100136127
    Abstract: The present invention provides a solid preparation containing compound (I) [compound (I) is as defined in the specification] or a salt thereof, and metformin hydrochloride, which is useful as a therapeutic drug for diabetes and the like, and superior in the preservation stability. A solid preparation having a first part and a second part: a first part: a part containing compound (I) or a salt thereof and substantially free of metformin hydrochloride a second part: a part containing metformin hydrochloride and substantially free of compound (I) and a salt thereof.
    Type: Application
    Filed: July 16, 2008
    Publication date: June 3, 2010
    Inventors: Kazumichi Yamamoto, Hiroyoshi Koyama
  • Patent number: 7700128
    Abstract: A solid preparation useful as a diabetes-treating agent or the like and excellent in the dissolution properties of an insulin sensitizer and an insulin secretagogue, which comprises an insulin sensitizer, an insulin secretagogue and a polyoxyethylene sorbitan fatty acid ester is provided.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: April 20, 2010
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Kazuhiro Doken, Tetsuya Kawano, Hiroyoshi Koyama, Naoru Hamaguchi
  • Publication number: 20070082047
    Abstract: A chewable tablet comprising a group which contains an acid-labile active ingredient and at least one basic substance selected from alkaline earth metal carbonate, metal oxide and metal hydroxide, and a group which does not contain an acid-labile active ingredient and contains at least one ingredient selected from alkaline earth metal carbonate, metal oxide and metal hydroxide, wherein said chewable tablet is capable of rapidly neutralizing gastric acid and is preferably not enteric-coated, is provided.
    Type: Application
    Filed: November 4, 2004
    Publication date: April 12, 2007
    Inventors: Masae Sugaya, Hiroyoshi Koyama, Naoru Hamaguchi
  • Publication number: 20060286168
    Abstract: The present invention provides a production method of a preparation coated with pioglitazone hydrochloride, which is useful as a therapeutic agent for diabetes and the like and superior in the characteristics of the preparation such as dissolution property of pioglitazone hydrochloride and the like.
    Type: Application
    Filed: July 10, 2003
    Publication date: December 21, 2006
    Inventors: Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
  • Publication number: 20060280794
    Abstract: A solid preparation comprising an insulin sensitizer and an HMG-CoA reductase inhibitor without deteriorating the stabilities of these drugs, wherein said preparation comprises particles containing an insulin sensitizer and particles containing an HMG-CoA reductase inhibitor.
    Type: Application
    Filed: June 3, 2004
    Publication date: December 14, 2006
    Inventors: Naoru Hamaguchi, Hiroyoshi Koyama, Masafumi Misaki
  • Publication number: 20060223870
    Abstract: A solid preparation useful as a diabetes-treating agent or the like and excellent in the dissolution properties of an insulin sensitizer and an insulin secretagogue, which comprises an insulin sensitizer, an insulin secretagogue and a polyoxyethylene sorbitan fatty acid ester is provided.
    Type: Application
    Filed: October 21, 2004
    Publication date: October 5, 2006
    Inventors: Kazuhiro Doken, Tetsuya Kawano, Hiroyoshi Koyama, Naoru Hamaguchi
  • Publication number: 20060141128
    Abstract: The present invention provides a production method of a preparation coated with pioglitazone hydrochloride, which is useful as a therapeutic agent for diabetes and the like, and which is superior in the characteristics of the preparation such as dissolution property of pioglitazone hydrochloride.
    Type: Application
    Filed: January 28, 2004
    Publication date: June 29, 2006
    Inventors: Kazuhiro Ohkouchi, Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
  • Publication number: 20050287207
    Abstract: The present invention provides a solid preparation containing an insulin sensitizer and an active ingredient (except insulin sensitizers), which is useful as a therapeutic drug for diabetes and the like, and which is superior in preparation characteristics such as content uniformity and dissolution property of the insulin sensitizer and the active ingredient (except insulin sensitizers), preparation hardness and the like.
    Type: Application
    Filed: October 6, 2003
    Publication date: December 29, 2005
    Inventors: Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi
  • Publication number: 20050238712
    Abstract: Quickly disintegrating solid preparations which contain: a) an active ingredient; b) D-mannitol having an average particle size of 30 ?m to 300 ?m; c) a disintegrating agent; and d) celluloses.
    Type: Application
    Filed: June 28, 2005
    Publication date: October 27, 2005
    Inventors: Kazuhiro Ohkouchi, Hiroyoshi Koyama
  • Publication number: 20040180085
    Abstract: Quickly disintegrating solid preparations which contain: a) an active ingredient; b) D-mannitol having an average particle size of 30 &mgr;m to 300 &mgr;m; c) a disintegrating agent; and d) celluloses.
    Type: Application
    Filed: March 29, 2004
    Publication date: September 16, 2004
    Inventors: Kazuhiro Ohkouchi, Hiroyoshi Koyama
  • Patent number: 6740339
    Abstract: Quickly disintegrating solid preparations which contain: a) an active ingredient; b) D-mannitol having an average particle size of 30 &mgr;m to 300 &mgr;m; c) a disintegrating agent; and d) celluloses.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: May 25, 2004
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Kazuhiro Ohkouchi, Hiroyoshi Koyama