Patents by Inventor Rika Matsumoto

Rika Matsumoto 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: 20160090554
    Abstract: A cleaning composition containing an alkoxylated polyalkyleneimine and a sulfonate group-containing copolymer is provided, which exhibits significant improved whiteness maintenance benefit when used to treat fabrics.
    Type: Application
    Filed: September 23, 2015
    Publication date: March 31, 2016
    Inventors: Xiaoli WANG, Xianling ZHAI, Peng QIN, Xiaoyan LIU, Mark Allen SMERZNAK, Patrick Christopher STENGER, Bonny Kay LUI, Praveen Kumar DEPA, William Coffin SHEAROUSE, Stacey Lee VOSTERS, Rachel Marie HILER, Akiko HEMMI, Hirotaka MIZOGUCHI, Rika MATSUMOTO
  • Patent number: 9095512
    Abstract: Spherical base granules comprising a hardly water-soluble drug and suited for film coating thereon are produced by layering spherical core particles with a drug-containing layering liquid comprising both micronized microcrystalline cellulose and an emulsifier therein and therefore having improved suspension stability.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: August 4, 2015
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Yoshihito Yaginuma, Rika Matsumoto
  • Patent number: 8568785
    Abstract: Provided is a process for producing spherical base granules comprising a easily water-soluble drug and suited for film coating by spraying a layering liquid over pharmaceutically inert spherical core particles, thereby coating the particles with a layer comprising the easily water-soluble drug, wherein (1) the spherical core particles have a microcrystalline cellulose content of 30 mass % or greater and a water absorbing capacity of 0.5 cm3/g or greater; and (2) the layering liquid is an aqueous solution comprising at least the easily water-soluble drug and a low water-soluble saccharide.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: October 29, 2013
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Yoshihito Yaginuma, Rika Matsumoto
  • Publication number: 20090324802
    Abstract: Spherical base granules comprising a hardly water-soluble drug and suited for film coating thereon are produced by layering spherical core particles with a drug-containing layering liquid comprising both micronized microcrystalline cellulose and an emulsifier therein and therefore having improved suspension stability.
    Type: Application
    Filed: August 9, 2007
    Publication date: December 31, 2009
    Applicant: ASAHL KASEI CHEMICALS CORPORATION
    Inventors: Yoshihito Yaginuma, Rika Matsumoto
  • Publication number: 20090280186
    Abstract: Provided is a process for producing spherical base granules comprising a easily water-soluble drug and suited for film coating by spraying a layering liquid over pharmaceutically inert spherical core particles, thereby coating the particles with a layer comprising the easily water-soluble drug, wherein (1) the spherical core particles have a microcrystalline cellulose content of 30 mass % or greater and a water absorbing capacity of 0.5 cm3/g or greater; and (2) the layering liquid is an aqueous solution comprising at least the easily water-soluble drug and a low water-soluble saccharide.
    Type: Application
    Filed: July 18, 2007
    Publication date: November 12, 2009
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Yoshihito Yaginuma, Rika Matsumoto
  • Publication number: 20090196934
    Abstract: The characteristic in being coated with film of spherical elementary granules is improved by adjusting a short/long diameter-ratio distribution coefficient to a specific value.
    Type: Application
    Filed: July 25, 2007
    Publication date: August 6, 2009
    Applicant: Asahi Kasei Chemicals Corporation
    Inventors: Yoshihito Yaginuma, Rika Matsumoto
  • Patent number: 7531346
    Abstract: The yeast cell wall fraction comprising cell residues obtained by removing internal soluble components from enzyme-treated yeast, or cell residues obtained by treating the cell residues with acid solution and removing the acid solution-soluble components. By decolorizing the residues with a decolorizing agent, the decolorized yeast cell wall fractions to which excellent physical properties are added, are obtained without impairing the excellent properties of the yeast cell wall fractions before the decolorization. The decolorized yeast cell wall fractions of the present invention have a white color and retain the merit of the yeast cell wall fractions before the decolorization for the use as a coating agent. Further, excellent properties such as the mechanical properties of the yeast cell wall fractions being enhanced and the yeast odor being decreased, are added to the decolorized yeast cell wall fractions.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: May 12, 2009
    Assignees: Kirin Beer Kabushiki Kaisha, Asahi Kasei Chemicals Corporation
    Inventors: Takahiro Eguchi, Tomohiko Nakamura, Syunichi Gomi, Rika Matsumoto
  • Publication number: 20060110402
    Abstract: The yeast cell wall fraction comprising cell residues obtained by removing internal soluble components from enzyme-treated yeast, or cell residues obtained by treating the cell residues with acid solution and removing the acid solution-soluble components. By decolorizing the residues with a decolorizing agent, the decolorized yeast cell wall fractions to which excellent physical properties are added, are obtained without impairing the excellent properties of the yeast cell wall fractions before the decolorization. The decolorized yeast cell wall fractions of the present invention have a white color and retain the merit of the yeast cell wall fractions before the decolorization for the use as a coating agent. Further, excellent properties such as the mechanical properties of the yeast cell wall fractions being enhanced and the yeast odor being decreased, are added to the decolorized yeast cell wall fractions.
    Type: Application
    Filed: August 21, 2003
    Publication date: May 25, 2006
    Applicants: KIRIN BEER KABUSHIKI KAISHA, ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Takahiro Eguchi, Tomohiko Nakamura, Syunichi Gomi, Rika Matsumoto
  • Patent number: RE45810
    Abstract: Provided is a process for producing spherical base granules comprising a easily water-soluble drug and suited for film coating by spraying a layering liquid over pharmaceutically inert spherical core particles, thereby coating the particles with a layer comprising the easily water-soluble drug, wherein (1) the spherical core particles have a microcrystalline cellulose content of 30 mass % or greater and a water absorbing capacity of 0.5 cm3/g or greater; and (2) the layering liquid is an aqueous solution comprising at least the easily water-soluble drug and a low water-soluble saccharide.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: November 24, 2015
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Yoshihito Yaginuma, Rika Matsumoto