Patents by Inventor Kentaro Nagamine

Kentaro Nagamine 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: 8017357
    Abstract: The present invention provides a nucleic acid synthesis method which involves the step of incubating a double-stranded nucleic acid template under conditions that ensure a complementary strand synthesis reaction using a primer as an origin. This method involves the step of placing a region, to which a primer capable of isothermally amplifying the template nucleic acid will anneal, in a condition that ensures base pairing, using an arbitrary primer. The arbitrary primer initiates the complementary strand synthesis reaction, using the double-stranded nucleic acid as a template and DNA polymerases catalyzing the complementary strand synthesis reaction which comprises the destabilization of the double-stranded nucleic acid and strand displacement, thereby providing a region that can undergo base pairing.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: September 13, 2011
    Assignee: Eiken Kagaku Kabushiki Kaisha
    Inventors: Tsugunori Notomi, Kentaro Nagamine
  • Patent number: 7851186
    Abstract: The present invention realized isothermal and rapid polynucleotide synthesis by using as templates polynucleotides having a structure capable of forming loops, and combining a plurality of primers capable of providing a starting point for complementary strand synthesis to such loops. If the LAMP method is applied, all reactions can be carried out isothermally and rapidly since the template polynucleotides themselves can also be synthesized by an isothermal reaction.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: December 14, 2010
    Assignee: Eiken Kagaku Kabushiki Kaisha
    Inventor: Kentaro Nagamine
  • Patent number: 7846695
    Abstract: The present invention realized isothermal and rapid polynucleotide synthesis by using as templates polynucleotides having a structure capable of forming loops, and combining a plurality of primers capable of providing a starting point for complementary strand synthesis to such loops. If the LAMP method is applied, all reactions can be carried out isothermally and rapidly since the template polynucleotides themselves can also be synthesized by an isothermal reaction.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: December 7, 2010
    Assignee: Eiken Kagaku Kabushiki Kaisha
    Inventor: Kentaro Nagamine
  • Patent number: 7745135
    Abstract: A method for detecting the occurrence of nucleic acid syntheses using an enzyme through the use of a generated insoluble substance as an indicator.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: June 29, 2010
    Assignee: Eiken Kagaku Kabushiki Kaisya
    Inventors: Yasuyoshi Mori, Kentaro Nagamine
  • Patent number: 7638280
    Abstract: The method of the present invention is based on a method wherein a nucleic acid is synthesized utilizing the hybridized 3?-end, which is synthesized by complementary strand synthesis, on a specific region of a target nucleotide sequence existing as the nucleotide sequence of the same strand as the origin for the next round of complementary strand synthesis. The hybridization to a specific region, which region is searched for mutations and polymorphisms, is repeatedly carried out according to the present invention. Thus, mutations and polymorphisms in a target nucleotide sequence are exactly copied to the reaction products.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: December 29, 2009
    Assignee: Eiken Kagaku Kabushiki Kaisha
    Inventors: Hidetoshi Kanda, Tsugunori Notomi, Kentaro Nagamine, Toshihiro Yonekawa
  • Publication number: 20090081664
    Abstract: A method for detecting the occurrence of nucleic acid syntheses using an enzyme through the use of a generated insoluble substance as an indicator.
    Type: Application
    Filed: April 21, 2008
    Publication date: March 26, 2009
    Applicant: Eiken Kagaku Kabushiki Kaisya
    Inventors: Yasuyoshi Mori, Kentaro Nagamine
  • Publication number: 20080213842
    Abstract: The present invention realized isothermal and rapid polynucleotide synthesis by using as templates polynucleotides having a structure capable of forming loops, and combining a plurality of primers capable of providing a starting point for complementary strand synthesis to such loops. If the LAMP method is applied, all reactions can be carried out isothermally and rapidly since the template polynucleotides themselves can also be synthesized by an isothermal reaction.
    Type: Application
    Filed: April 15, 2008
    Publication date: September 4, 2008
    Applicant: EIKEN KAGAKU KABUSHIKI KAISHA
    Inventor: Kentaro Nagamine
  • Publication number: 20080213790
    Abstract: The present invention realized isothermal and rapid polynucleotide synthesis by using as templates polynucleotides having a structure capable of forming loops, and combining a plurality of primers capable of providing a starting point for complementary strand synthesis to such loops. If the LAMP method is applied, all reactions can be carried out isothermally and rapidly since the template polynucleotides themselves can also be synthesized by an isothermal reaction.
    Type: Application
    Filed: April 15, 2008
    Publication date: September 4, 2008
    Applicant: EIKEN KAGAKU KABUSHIKI KAISHA
    Inventor: Kentaro Nagamine
  • Patent number: 7374879
    Abstract: A method for detecting the occurrence of nucleic acid syntheses using an enzyme through the use of a generated insoluble substance as an indicator.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: May 20, 2008
    Assignee: Eiken Kagaku Kabushiki Kaisya
    Inventors: Yasuyoshi Mori, Kentaro Nagamine
  • Patent number: 7374913
    Abstract: The present invention realized isothermal and rapid polynucleotide synthesis by using as templates polynucleotides having a structure capable of forming loops, and combining a plurality of primers capable of providing a starting point for complementary strand synthesis to such loops. If the LAMP method is applied, all reactions can be carried out isothermally and rapidly since the template polynucleotides themselves can also be synthesized by an isothermal reaction.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: May 20, 2008
    Assignee: Eiken Kagaku Kabushiki Kaisha
    Inventor: Kentaro Nagamine
  • Publication number: 20070238113
    Abstract: The method of the present invention is based on a method wherein a nucleic acid is synthesized utilizing the hybridized 3?-end, which is synthesized by complementary strand synthesis, on a specific region of a target nucleotide sequence existing as the nucleotide sequence of the same strand as the origin for the next round of complementary strand synthesis. The hybridization to a specific region, which region is searched for mutations and polymorphisms, is repeatedly carried out according to the present invention. Thus, mutations and polymorphisms in a target nucleotide sequence are exactly copied to the reaction products.
    Type: Application
    Filed: December 22, 2006
    Publication date: October 11, 2007
    Applicant: EIKEN KAGAKU KABUSHIKI KAISHA
    Inventors: Hidetoshi Kanda, Tsugunori Notomi, Kentaro Nagamine, Toshihiro Yonekawa
  • Patent number: 7175985
    Abstract: The method of the present invention is based on a method wherein a nucleic acid is synthesized utilizing the hybridized 3?-end, which is synthesized by complementary strand synthesis, on a specific region of a target nucleotide sequence existing as the nucleotide sequence of the same strand as the origin for the next round of complementary strand synthesis. The hybridization to a specific region, which region is searched for mutations and polymorphisms, is repeatedly carried out according to the present invention. Thus, mutations and polymorphisms in a target nucleotide sequence are exactly copied to the reaction products.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: February 13, 2007
    Assignee: Eiken Kagaku Kabushiki Kaisha
    Inventors: Hidetoshi Kanda, Tsugunori Notomi, Kentaro Nagamine, Toshihiro Yonekawa
  • Publication number: 20060141452
    Abstract: This invention relates to a method for selectively and efficiently synthesizing one of the sense or antisense strands of double-stranded nucleic acid. The method for synthesizing single-stranded nucleic acid according to this invention comprises the following steps of: 1) cleaving, with a restriction enzyme, double-stranded DNA having a restriction enzyme recognition sequence at a portion closer to the 5? side than the target sequence in such a manner that a) a fragment having an overhanging 3? terminus is formed, and b) base sequences of the single-stranded regions of the fragments after the cleavage differ from each other; 2) to the single-stranded region of the DNA fragment that was cleaved with the restriction enzyme, annealing a primer having a base sequence complementary to the region on at least its 3? terminus; and 3) synthesizing a nucleic acid by a strand displacement-type polymerase starting from the 3? terminus of the primer.
    Type: Application
    Filed: October 26, 2001
    Publication date: June 29, 2006
    Inventor: Kentaro Nagamine
  • Publication number: 20040038253
    Abstract: The present invention realized isothermal and rapid polynucleotide synthesis by using as templates polynucleotides having a structure capable of forming loops, and combining a plurality of primers capable of providing a starting point for complementary strand synthesis to such loops. If the LAMP method is applied, all reactions can be carried out isothermally and rapidly since the template polynucleotides themselves can also be synthesized by an isothermal reaction.
    Type: Application
    Filed: June 18, 2003
    Publication date: February 26, 2004
    Inventor: Kentaro Nagamine
  • Publication number: 20030207292
    Abstract: The present invention provides a nucleic acid synthesis method which involves the step of incubating a double-stranded nucleic acid template under conditions that ensure a complementary strand synthesis reaction using a primer as an origin. This method involves the step of placing a region, to which a primer capable of isothermally amplifying the template nucleic acid will anneal, in a condition that ensures base pairing, using an arbitrary primer. The arbitrary primer initiates the complementary strand synthesis reaction, using the double-stranded nucleic acid as a template and DNA polymerases catalyzing the complementary strand synthesis reaction which comprises the destabilization of the double-stranded nucleic acid and strand displacement, thereby providing a region that can undergo base pairing.
    Type: Application
    Filed: April 8, 2003
    Publication date: November 6, 2003
    Inventors: Tsugunori Notomi, Kentaro Nagamine
  • Publication number: 20030129632
    Abstract: A method for detecting the occurrence of nucleic acid syntheses using an enzyme through the use of a generated insoluble substance as an indicator.
    Type: Application
    Filed: November 1, 2002
    Publication date: July 10, 2003
    Inventors: Yasuyoshi Mori, Kentaro Nagamine
  • Patent number: 6548272
    Abstract: A gene for a novel transmembrane protein was isolated and its nucleotide sequence was determined. A protein encoded by this gene (TRPC7) has 7 transmembrane regions, and because there is homology with TRP (transient receptor potential), this protein is considered to have calcium channel functions. Further, since a mutation in the TRPC7 gene is frequently observed in patients with manic-depressives insanity, TRPC7 is considered to be a pathogenic gene for bipolar affective disorder.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: April 15, 2003
    Assignee: Eiken Kagaku Kabushiki Kaisya
    Inventors: Nobuyoshi Shimizu, Kentaro Nagamine