Patents by Inventor Yohko Akiyama

Yohko Akiyama 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: 9486446
    Abstract: The present invention provides an orally-disintegrating solid preparation comprising fine granules showing controlled release of a pharmaceutically active ingredient, wherein the outermost layer of the fine granules is coated with a coating layer comprising hydroxypropylmethylcellulose and low-substituted hydroxypropylcellulose and breakage of the fine granules during tableting is suppressed.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: November 8, 2016
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Takashi Kurasawa, Yasuko Watanabe, Yohko Akiyama
  • Publication number: 20160128945
    Abstract: A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.
    Type: Application
    Filed: December 28, 2015
    Publication date: May 12, 2016
    Inventors: Yohko AKIYAMA, Takashi KURASAWA, Hiroto BANDO, Naoki NAGAHARA
  • Patent number: 8980322
    Abstract: The present invention provides a controlled release composition showing release of an active ingredient (proton pump inhibitor) controlled in two or more steps at different release rates, which contains 1) a release-controlled part A capable of controlling release of the active ingredient to occur at a predetermined rate, 2) a release-controlled part B capable of controlling release of the active ingredient to occur at a predetermined rate lower than the release rate of the release-controlled part A, and where necessary, 3) a release-controlled part C capable of controlling release of the active ingredient to occur at a predetermined rate faster than the release rate of the release-controlled part B, wherein the release of the active ingredient from the release-controlled part B precedes the release of the active ingredient from the release-controlled part A (when release-controlled part C is contained, the release of the active ingredient from the release-controlled part C precedes the release of the active
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: March 17, 2015
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Naoki Nagahara, Keiko Miyamoto, Yohko Akiyama
  • Patent number: 8784885
    Abstract: A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: July 22, 2014
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Yohko Akiyama, Takashi Kurasawa, Hiroto Bando, Naoki Nagahara
  • Publication number: 20140186448
    Abstract: A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.
    Type: Application
    Filed: March 6, 2014
    Publication date: July 3, 2014
    Inventors: Yohko AKIYAMA, Takashi KURASAWA, Hiroto BANDO, Naoki NAGAHARA
  • Publication number: 20140186449
    Abstract: A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.
    Type: Application
    Filed: March 6, 2014
    Publication date: July 3, 2014
    Inventors: Yohko AKIYAMA, Takashi KURASAWA, Hiroto BANDO, Naoki NAGAHARA
  • Patent number: 8722084
    Abstract: A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: May 13, 2014
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Yohko Akiyama, Takashi Kurasawa, Hiroto Bando, Naoki Nagahara
  • Publication number: 20100316709
    Abstract: The present invention provides an orally-disintegrating solid preparation comprising fine granules showing controlled release of a pharmaceutically active ingredient, wherein the outermost layer of the fine granules is coated with a coating layer comprising hydroxypropylmethylcellulose and low-substituted hydroxypropylcellulose and breakage of the fine granules during tableting is suppressed.
    Type: Application
    Filed: December 27, 2007
    Publication date: December 16, 2010
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Takashi Kurasawa, Yasuko Watanabe, Yohko Akiyama
  • Publication number: 20100285120
    Abstract: A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.
    Type: Application
    Filed: July 19, 2010
    Publication date: November 11, 2010
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Yohko Akiyama, Takashi Kurasawa, Hiroto Bando, Naoki Nagahara
  • Publication number: 20100278911
    Abstract: A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.
    Type: Application
    Filed: July 8, 2010
    Publication date: November 4, 2010
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Yohko Akiyama, Takashi Kurasawa, Hiroto Bando, Naoki Nagahara
  • Publication number: 20100272798
    Abstract: A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.
    Type: Application
    Filed: July 8, 2010
    Publication date: October 28, 2010
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Yohko AKIYAMA, Takashi KURASAWA, Hiroto BANDO, Naoki NAGAHARA
  • Patent number: 7790755
    Abstract: A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: September 7, 2010
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Yohko Akiyama, Takashi Kurasawa, Hiroto Bando, Naoki Nagahara
  • Publication number: 20060177509
    Abstract: The present invention provides a controlled release composition showing release of an active ingredient (proton pump inhibitor) controlled in two or more steps at different release rates, which contains 1) a release-controlled part A capable of controlling release of the active ingredient to occur at a predetermined rate, 2) a release-controlled part B capable of controlling release of the active ingredient to occur at a predetermined rate lower than the release rate of the release-controlled part A, and where necessary, 3) a release-controlled part C capable of controlling release of the active ingredient to occur at a predetermined rate faster than the release rate of the release-controlled part B, wherein the release of the active ingredient from the release-controlled part B precedes the release of the active ingredient from the release-controlled part A (when release-controlled part C is contained, the release of the active ingredient from the release-controlled part C precedes the release of the active
    Type: Application
    Filed: March 16, 2004
    Publication date: August 10, 2006
    Inventors: Naoki Nagahara, Keiko Miyamoto, Yohko Akiyama
  • Publication number: 20060039974
    Abstract: The sustained-release preparation of the present invention, which contains a dipeptidyl peptidase IV inhibitor and a hydrophilic polymer, can appropriately inhibit the DPP-IV activity, and is superior in convenience or compliance.
    Type: Application
    Filed: September 10, 2003
    Publication date: February 23, 2006
    Applicant: TAKEDA PHARMACEUTICAL COMPANY LIMITED
    Inventors: Yohko Akiyama, Yukihiro Matsumoto, Satoru Oi, Nobuhiro Suzuki, Shigetoshi Tsubotani
  • Publication number: 20060013868
    Abstract: A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.
    Type: Application
    Filed: October 15, 2003
    Publication date: January 19, 2006
    Inventors: Yohko Akiyama, Takashi Kurasawa, Hiroto Bando, Naoki Nagahara
  • Publication number: 20040116522
    Abstract: The present invention relates to a pharmaceutical solution containing a physiologically active non-peptide substance, an organic acid and a biocompatible organic solvent, and provides a pharmaceutical solution wherein a physiologically active non-peptide substance is dissolved at a high concentration.
    Type: Application
    Filed: September 25, 2003
    Publication date: June 17, 2004
    Inventors: Yutaka Yamagata, Yukihiro Matsumoto, Yohko Akiyama
  • Publication number: 20040058956
    Abstract: Solid dispersions are provided comprising an HER2 inhibitor which is hardly or not soluble in water and a hydrophilic polymer. These solid dispersions have been improved in the solubility of the HER2 inhibitor, oral absorption and bioavailability in blood.
    Type: Application
    Filed: June 3, 2003
    Publication date: March 25, 2004
    Inventors: Yohko Akiyama, Satoshi Iinuma, Hiroto Bando
  • Publication number: 20040053936
    Abstract: An oral pharmaceutical composition of the present invention, which contains a compound having CCR5 antagonistic action dissolved or dispersed in an amphiphilic substance-containing carrier, shows less dispersion in the blood concentration of a compound having CCR5 antagonistic action or a salt thereof, shows extremely fine oral absorption, and makes a preparation for oral administration useful for the prophylaxis or treatment of various HIV infectious diseases in human.
    Type: Application
    Filed: June 20, 2003
    Publication date: March 18, 2004
    Inventors: Yohko Akiyama, Naoki Nagahara
  • Publication number: 20030078189
    Abstract: Medicinal compositions for oral use to be used as preparations for oral administration showing little scatter in the concentration of a compound, which is insoluble or slightly soluble in water and shows a CCR5 antagonism, or its salt in blood, having very high oral absorbability and being useful in preventing and treating various HIV infections in humans, characterized in that the above-described compound or its salt is dissolved or dispersed in a carrier containing at least one constituent selected from among amphipathic substances, alcohols and lipids.
    Type: Application
    Filed: June 6, 2002
    Publication date: April 24, 2003
    Inventors: Yohko Akiyama, Naoki Nagahara, Yukihiro Matsumoto
  • Publication number: 20020142041
    Abstract: A solid matrix composition which is solid at ambient temperature, which comprises a viscogenic agent, such as an acrylic acid polymer, capable of developing viscosity on contact with water, as dispersed at least in the neighborhood of the surface layer of a matrix particle containing a polyglycerol fatty acid ester or a lipid and an active ingredient. The matrix may be such that a matrix particle containing a polyglycerol fatty acid ester or a lipid and an active ingredient has been coated with a coating composition containing at least one viscogenic agent. Such composition can adhere to the digestive tract and remain there for a prolonged period of time, thereby increasing the bioavailability of the active ingredient. Solid preparations, such as fine granules and granules, contain the above matrix composition.
    Type: Application
    Filed: February 20, 2002
    Publication date: October 3, 2002
    Inventors: Yohko Akiyama, Naoki Nagahara, Shin-ichiro Hirai