Patents by Inventor Toshiya Hosomi

Toshiya Hosomi 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: 9284603
    Abstract: An object of the present invention is to provide an amplification method that inhibits amplification caused by erroneous annealing of a primer. Primers X1 and X2 are used in amplification of a target sequence including a target site showing a polymorphism. The primer X1 includes a sequence A1? and a sequence E1. The sequence A1? is complementary to a partial sequence A1 in a template nucleic acid, and has, in its 3? region, a base x1? complementary to a first base x1 at the target site in a 5? region of the sequence A1. The sequence E1 is noncomplementary to a partial sequence B1 adjacent to the 3? end of the partial sequence A1 in the template nucleic acid, and is bound to the 5? end of the partial sequence A1?. The primer X2 includes a sequence A2?. The sequence A2? is complementary to a partial sequence A2 in the template nucleic acid, and has, in its 3? region, a base x2? complementary to a second base x2 at the target site in a 5? region of the partial sequence A2.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: March 15, 2016
    Assignee: ARKRAY, Inc.
    Inventor: Toshiya Hosomi
  • Patent number: 9200326
    Abstract: The present invention provides a polymorphism detection probe that can identify a different polymorphism in a K-ras gene easily with high reliability and use of the polymorphism detection probe.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: December 1, 2015
    Assignee: ARKRAY, Inc.
    Inventors: Toshiya Hosomi, Mariko Komori
  • Patent number: 9121051
    Abstract: The disclosure relates to a method of measuring gene abundance, including obtaining at least two types of amplification product, each of which contains a single additional base sequence and corresponds to each of at least two genes, by amplifying, in one reaction solution, nucleic acids encoding the at least two genes, whose abundances in nucleic acids contained in a subject sample may be different, using a first primer set, which includes at least two types of first primer, each of which is capable of introducing the single additional base sequence to a resulting amplification product and corresponds to each of the at least two genes, and a second primer for amplifying a nucleic acid containing the single additional base sequence; and determining the abundances of the at least two genes based on detected signals corresponding to the abundances of the at least two types of amplification product.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: September 1, 2015
    Assignee: ARKRAY, Inc.
    Inventors: Toshiya Hosomi, Moeko Ijuin
  • Patent number: 9121839
    Abstract: An analyzing system that enables further expansion of analysis items and automation of analysis. In the analyzing system for performing an analysis using container 1 and an analyzing apparatus, container 1 is a dedicated container previously containing a reagent for a specific analysis item or an expansion container to which a user can freely set an analysis item.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: September 1, 2015
    Assignee: ARKRAY, Inc.
    Inventors: Mitsuharu Hirai, Satoshi Majima, Toshiya Hosomi
  • Patent number: 9115391
    Abstract: The present invention provides a method for detecting a mutation capable of detecting a mutation with high sensitivity and high reliability in one reaction system. Using primers (Xmt) and (Xwt), a target nucleic acid sequence whose objective base to be detected is a mutant-type is amplified with amplification efficiency higher than a target nucleic acid sequence whose objective base to be detected is a normal-type. The (Xmt) is a primer that is complementary to a region including a mutant-type base in the template nucleic acid and has a base complementary to a mutant-type base at a 3? region, and the (Xwt) is a primer that is complementary to a region including a normal-type base in the template nucleic acid and has a base complementary to a normal-type base at a 3? region. It is preferable that amplification efficiency by the (Xmt) with reference to a mutant-type template nucleic acid is higher than that by the (Xwt) with reference to a normal-type template nucleic acid.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: August 25, 2015
    Assignee: ARKRAY, Inc.
    Inventors: Mitsuharu Hirai, Toshiya Hosomi, Aki Iguchi
  • Patent number: 9085803
    Abstract: A probe for detecting a polymorphism in ab1 gene, comprising at least one fluorescence-labeled oligonucleotide.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: July 21, 2015
    Assignee: ARKRAY, Inc.
    Inventor: Toshiya Hosomi
  • Patent number: 9057103
    Abstract: The disclosure relates to probes for detecting a polymorphism in the IL28B gene and in the ITPA gene, and methods of use thereof.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 16, 2015
    Assignee: ARKRAY, Inc.
    Inventors: Kaoru Kurose, Toshiya Hosomi
  • Patent number: 9045797
    Abstract: Disclosed is a method of amplifying a polynucleotide, comprising: (a) mixing primers for amplifying the polynucleotide, a polymerase, nucleotide substrates and a template polynucleotide, and (b) amplifying the polynucleotide by polymerase reaction, wherein the polymerase has an amino acid sequence consisting of SEQ ID NO:1 or an amino acid sequence with at least 85% sequence identity to SEQ ID NO:1, and an amino acid residue corresponding to, or at position 651 of the amino acid sequence has been replaced with glutamic acid.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: June 2, 2015
    Assignee: ARKRAY, Inc.
    Inventors: Toshiya Hosomi, Mitsuharu Hirai
  • Patent number: 8889359
    Abstract: Disclosed is a method of amplifying a polynucleotide, comprising: (a) mixing primers for amplifying the polynucleotide, a polymerase, nucleotide substrates and a template polynucleotide, and (b) amplifying the polynucleotide by polymerase reaction, wherein the polymerase has an amino acid sequence consisting of SEQ ID NO: 1 or an amino acid sequence with at least 85% sequence identity to SEQ ID NO: 1, and wherein an amino acid residue corresponding to position 653 of the amino acid sequence has been replaced with glutamic acid.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: November 18, 2014
    Assignee: ARKRAY, Inc.
    Inventors: Toshiya Hosomi, Mitsuharu Hirai
  • Patent number: 8877910
    Abstract: The present invention relates to probes which detect a polymorphism(s) in exon 12 of the NPM1 gene, a kit therefor, and the method of detecting the polymorphism(s) thereof.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: November 4, 2014
    Assignee: Arkray, Inc.
    Inventor: Toshiya Hosomi
  • Patent number: 8637238
    Abstract: A method is provided in which with respect to an optical detection apparatus including an optical detection unit and a temperature control unit, whether optical signal detection and temperature control are performed accurately, i.e. the performance thereof, can be verified simply with high reliability. With respect to an optical detection apparatus including an optical detection unit for detecting an optical signal of a sample and a temperature control unit for controlling temperature of the sample, the optical signal detection performance and temperature control performance are verified by the following method. First, a standard sample containing a nucleic acid sequence and a strand complementary thereto that have a known optical signal intensity and Tm value is provided, the temperature of the standard sample is increased or decreased with the temperature control unit, and optical signal intensity of the standard sample is measured with the detection unit.
    Type: Grant
    Filed: December 25, 2007
    Date of Patent: January 28, 2014
    Assignee: ARKRAY, Inc.
    Inventors: Mitsuharu Hirai, Toshiya Hosomi, Yuki Yoshinaga
  • Publication number: 20130309663
    Abstract: The disclosure relates to probes for detecting a polymorphism in the IL28B gene and in the ITPA gene, and methods of use thereof.
    Type: Application
    Filed: September 14, 2012
    Publication date: November 21, 2013
    Applicant: ARKRAY, INC.
    Inventors: Kaoru Kurose, Toshiya Hosomi
  • Publication number: 20130143212
    Abstract: The disclosure relates to a method of measuring gene abundance, including obtaining at least two types of amplification product, each of which contains a single additional base sequence and corresponds to each of at least two genes, by amplifying, in one reaction solution, nucleic acids encoding the at least two genes, whose abundances in nucleic acids contained in a subject sample may be different, using a first primer set, which includes at least two types of first primer, each of which is capable of introducing the single additional base sequence to a resulting amplification product and corresponds to each of the at least two genes, and a second primer for amplifying a nucleic acid containing the single additional base sequence; and determining the abundances of the at least two genes based on detected signals corresponding to the abundances of the at least two types of amplification product.
    Type: Application
    Filed: October 31, 2012
    Publication date: June 6, 2013
    Inventors: Toshiya Hosomi, Moeko Ijuin
  • Patent number: 8455192
    Abstract: A primer set for amplifying a region including sites to be detected of SULT1A1*2 and SULT1A1*3 in the SULT1A1 gene by a gene amplification method is provided, wherein the primer set can amplify the region specifically. A pair of primer set is used including a forward primer consisting of the base sequence of SEQ ID NO: 7 as well as a reverse primer consisting of the base sequence of SEQ ID NO: 18. The use of this primer set makes it possible to specifically and efficiently amplify a region including both sites where two types of polymorphisms (SULT1A1*2 and SULT1A1*3) of the SULT1A1 gene are generated.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: June 4, 2013
    Assignee: ARKRAY, Inc.
    Inventor: Toshiya Hosomi
  • Patent number: 8404438
    Abstract: A primer set for amplifying a region including sites to be detected of SULT1A1*2 and SULT1A1*3 in the SULT1A1 gene by a gene amplification method is provided, wherein the primer set can amplify the region specifically. A pair of primer set is used including a forward primer consisting of the base sequence of SEQ ID NO: 7 as well as a reverse primer consisting of the base sequence of SEQ ID NO: 18. The use of this primer set makes it possible to specifically and efficiently amplify, a region including both sites where two types of polymorphisms (SULT1A1*2 and SULT1A1*3) of the SULT1A1 gene are generated.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: March 26, 2013
    Assignee: Arkray, Inc.
    Inventor: Toshiya Hosomi
  • Publication number: 20130017543
    Abstract: Disclosed is a method of amplifying a polynucleotide, comprising: (a) mixing primers for amplifying the polynucleotide, a polymerase, nucleotide substrates and a template polynucleotide, and (b) amplifying the polynucleotide by polymerase reaction, wherein the polymerase has an amino acid sequence consisting of SEQ ID NO:1 or an amino acid sequence with at least 85% sequence identity to SEQ ID NO:1, and an amino acid residue corresponding to, or at position 651 of the amino acid sequence has been replaced with glutamic acid.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 17, 2013
    Applicant: ARKRAY, Inc.
    Inventors: Toshiya Hosomi, Mitsuharu Hirai
  • Publication number: 20130017542
    Abstract: Disclosed is a method of amplifying a polynucleotide, comprising: (a) mixing primers for amplifying the polynucleotide, a polymerase, nucleotide substrates and a template polynucleotide, and (b) amplifying the polynucleotide by polymerase reaction, wherein the polymerase has an amino acid sequence consisting of SEQ ID NO:1 or an amino acid sequence with at least 85% sequence identity to SEQ ID NO:1, and wherein an amino acid residue corresponding to position 653 of the amino acid sequence has been replaced with glutamic acid.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 17, 2013
    Applicant: ARKRAY, Inc.
    Inventors: Toshiya Hosomi, Mitsuharu Hirai
  • Publication number: 20120276534
    Abstract: The present invention relates to probes which detect a polymorphism(s) in exon 12 of the NPM1 gene, a kit therefor, and the method of detecting the polymorphism(s) thereof.
    Type: Application
    Filed: April 27, 2012
    Publication date: November 1, 2012
    Applicant: ARKRAY, Inc.
    Inventor: Toshiya Hosomi
  • Publication number: 20120244540
    Abstract: The present invention provides a polymorphism detection probe that can identify a different polymorphism in a K-ras gene easily with high reliability and use of the polymorphism detection probe.
    Type: Application
    Filed: December 7, 2010
    Publication date: September 27, 2012
    Applicant: ARKRAY , Inc.
    Inventors: Toshiya Hosomi, Mariko Komori
  • Publication number: 20120129174
    Abstract: An object of the present invention is to provide an amplification method that inhibits amplification caused by erroneous annealing of a primer. Primers X1 and X2 are used in amplification of a target sequence including a target site showing a polymorphism. The primer X1 includes a sequence A1? and a sequence E1. The sequence A1? is complementary to a partial sequence A1 in a template nucleic acid, and has, in its 3? region, a base x1? complementary to a first base x1 at the target site in a 5? region of the sequence A1. The sequence E1 is noncomplementary to a partial sequence B1 adjacent to the 3? end of the partial sequence A1 in the template nucleic acid, and is bound to the 5? end of the partial sequence A1?. The primer X2 includes a sequence A2?. The sequence A2? is complementary to a partial sequence A2 in the template nucleic acid, and has, in its 3? region, a base x2? complementary to a second base x2 at the target site in a 5? region of the partial sequence A2.
    Type: Application
    Filed: January 21, 2011
    Publication date: May 24, 2012
    Applicant: ARKRAY, Inc.
    Inventor: Toshiya Hosomi