Patents by Inventor Ryouji Karinaga

Ryouji Karinaga 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: 10837011
    Abstract: In a method of nucleic acid extraction using a support, the present invention realizes collection of a nucleic acid from a liquid containing the nucleic acid at an extremely low concentration at which collection cannot be achieved with polyacrylamide. A method of extracting a nucleic acid, comprising allowing the nucleic acid to be adsorbed onto a support in the presence of a chaotropic salt and an alcohol in coexistence with an anionic polymer. A reagent for nucleic acid extraction, comprising an anionic polymer, a chaotropic salt, an alcohol and a support.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: November 17, 2020
    Assignee: UNIVERSAL BIO RESEARCH CO., LTD.
    Inventors: Ryouji Karinaga, Tetsuya Ueda, Hideji Tajima
  • Publication number: 20170081656
    Abstract: In a method of nucleic acid extraction using a carrier, the present invention realizes collection of a nucleic acid from a liquid containing the nucleic acid at an extremely low concentration at which collection cannot be achieved with polyacrylamide. A method of extracting a nucleic acid, comprising allowing the nucleic acid to be adsorbed onto a carrier in the presence of a chaotropic salt and an alcohol in coexistence with an anionic polymer. A reagent for nucleic acid extraction, comprising an anionic polymer, a chaotropic salt, an alcohol and a carrier.
    Type: Application
    Filed: March 18, 2015
    Publication date: March 23, 2017
    Applicant: UNIVERSAL BIO RESEARCH CO., LTD.
    Inventors: Ryouji KARINAGA, Tetsuya UEDA, Hideji TAJIMA
  • Publication number: 20160017441
    Abstract: It is an object of the present invention to provide a method for analyzing, in detail, the epigenetic state of stem cells. The present invention provides a method for identifying stem cells, which comprises analyzing the patterns of methylation and demethylation of chromosomal DNA extracted from test stem cells, and correlating the analyzed patterns with the properties of the test stem cells.
    Type: Application
    Filed: January 16, 2014
    Publication date: January 21, 2016
    Applicant: UNIVERSAL BIO RESEARCH CO., LTD.
    Inventors: Hideji TAJIMA, Harumi GINYA, Tomoyuki HATANO, Masaaki TAKAHASHI, Ryouji KARINAGA
  • Publication number: 20130256208
    Abstract: The invention relates to a material for capturing microbes or the like, a device for capturing microbes or the like, a method of capturing microbes or the like, and a method of producing a material for capturing microbes or the like, and has an object of using a pulverizable resin whereby a minor amount of microbes or the like contained in a large amount of a liquid, or microbes or the like contained in a small amount of a liquid can be captured efficiently, quickly, labor-savingly, and reliably. Disclosed is: a material for capturing microbes or the like, which comprises irregular-shaped powdery grains made of a pulverizable adsorbent resin and distributed in a predetermined grain size range, and which can adsorb or bond to a target such as a microbe contained in a liquid; a device for capturing microbes or the like; and a method of capturing microbes or the like.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 3, 2013
    Inventors: Hideji Tajima, Tomoyuki Hatano, Ryouji Karinaga, Madoka Shishido
  • Patent number: 8420379
    Abstract: The invention relates to a material for capturing microbes or the like, a device for capturing microbes or the like, a method of capturing microbes or the like, and a method of producing a material for capturing microbes or the like, and has an object of using a pulverizable resin whereby a minor amount of microbes or the like contained in a large amount of a liquid, or microbes or the like contained in a small amount of a liquid can be captured efficiently, quickly, labor-savingly, and reliably. Disclosed is: a material for capturing microbes or the like, which comprises irregular-shaped powdery grains made of a pulverizable adsorbent resin and distributed in a predetermined grain size range, and which can adsorb or bond to a target such as a microbe contained in a liquid; a device for capturing microbes or the like; and a method of capturing microbes or the like.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: April 16, 2013
    Assignee: Universal Bio Research Co., Ltd.
    Inventors: Hideji Tajima, Tomoyuki Hatano, Ryouji Karinaga, Madoka Shishido
  • Publication number: 20110003367
    Abstract: The invention relates to a material for capturing microbes or the like, a device for capturing microbes or the like, a method of capturing microbes or the like, and a method of producing a material for capturing microbes or the like, and has an object of using a pulverizable resin whereby a minor amount of microbes or the like contained in a large amount of a liquid, or microbes or the like contained in a small amount of a liquid can be captured efficiently, quickly, labor-savingly, and reliably. Disclosed is: a material for capturing microbes or the like, which comprises irregular-shaped powdery grains made of a pulverizable adsorbent resin and distributed in a predetermined grain size range, and which can adsorb or bond to a target such as a microbe contained in a liquid; a device for capturing microbes or the like; and a method of capturing microbes or the like.
    Type: Application
    Filed: January 9, 2009
    Publication date: January 6, 2011
    Inventors: Hideji Tajima, Tomoyuki Hatano, Ryouji Karinaga, Madoka Shishido