Patents by Inventor Satoshi Majima
Satoshi Majima 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).
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Patent number: 9523643Abstract: Provided is a protein concentration assay method that uses a protein indicating reagent and that enables highly accurate assay. The protein concentration assay method includes: optically analyzing a color exhibited after a sample to be assayed and a protein indicating reagent are brought into contact with each other; measuring pH of the sample to be assayed; and assaying a concentration of protein in the sample based on the result of the optical analysis, the measured value of pH, and data for protein concentration assay, wherein the protein indicating reagent is a protein indicating reagent whose color varies with pH and a concentration of protein, and the data for protein concentration assay include information indicating a way to assay the result of the optical analysis corresponding to the measured value of pH.Type: GrantFiled: October 15, 2012Date of Patent: December 20, 2016Assignee: ARKRAY, INC.Inventors: Satoshi Majima, Shinya Nakajima
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Patent number: 9175272Abstract: Primer sets for amplifying target regions containing sites to be detected in the UGT1A1 gene by a gene amplification method are provided, wherein the primer sets can amplify the regions specifically Three pairs of primer sets are used including forward primers consisting of the base sequences of SEQ ID NOs: 4 or 81, 21, and 42 as well as reverse primers consisting of the base sequences of SEQ ID NOs: 13 or 91, 29 and 48, respectively. The use of these primer sets makes it possible to amplify three target regions including parts where three types of polymorphisms (UGT1A1*6, UGT1A1*27, and UGT1A1*28) of the UGT1A1 gene are generated, respectively, in the same reaction solution at the same time.Type: GrantFiled: April 1, 2011Date of Patent: November 3, 2015Assignee: ARKRAY, Inc.Inventors: Mitsuharu Hirai, Satoshi Majima
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Patent number: 9157118Abstract: Polymorphism detection probes that can distinguish polymorphisms that have only one different base are provided. At least one oligonucleotide selected from the group consisting of the oligonucleotides of SEQ ID NOS. 4, 23, 30, 47, 57 and 64 is used as a probe in a Tm analysis. A Tm analysis using such probes allows easy detection of specific polymorphisms of the FCGR3A gene, the FCGR2A gene, the IL-10 gene, the TNF ? gene and the TNF ? gene that have an effect on the pharmaceutical effects of antibody drugs or the like. Moreover, such probes allow detection of two or more types of polymorphisms in a single reaction system by introducing two or more types of the probes concomitantly.Type: GrantFiled: October 3, 2008Date of Patent: October 13, 2015Assignee: ARKRAY, Inc.Inventors: Mitsuharu Hirai, Satoshi Majima
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Patent number: 9121839Abstract: 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: GrantFiled: January 21, 2010Date of Patent: September 1, 2015Assignee: ARKRAY, Inc.Inventors: Mitsuharu Hirai, Satoshi Majima, Toshiya Hosomi
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Patent number: 9012619Abstract: Detection probes are provided that are capable of detecting a sequence to be detected containing a mutation even when a sequence not to be detected containing no mutation coexists with the sequence to be detected containing a mutation, which are different only in a single base from each other. At least one oligonucleotide selected from the group consisting of SEQ ID NOs: 2˜16 is used as a probe. Even in a sample containing an abl gene in which a mutation has occurred and an abl gene in which no mutation has occurred, the use of such probes in, for example, Tm analysis allows the mutation to be detected.Type: GrantFiled: February 19, 2008Date of Patent: April 21, 2015Assignee: Arkray, Inc.Inventors: Mitsuharu Hirai, Satoshi Majima, Taira Maekawa, Shinya Kimura
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Patent number: 8357516Abstract: Primer sets for amplifying target regions containing sites to be detected in the UGT1A1 gene by a gene amplification method are provided, wherein the primer sets can amplify the regions specifically. Three pairs of primer sets are used including forward primers consisting of the base sequences of SEQ ID NOs: 4 or 81, 21, and 42 as well as reverse primers consisting of the base sequences of SEQ ID NOs: 13 or 91, 29 and 48, respectively. The use of these primer sets makes it possible to amplify three target regions including parts where three types of polymorphisms (UGT1A1*6, UGT1A1*27, and UGT1A1*28) of the UGT1A1 gene are generated, respectively, in the same reaction solution at the same time.Type: GrantFiled: November 29, 2007Date of Patent: January 22, 2013Assignee: ARKRAY, Inc.Inventors: Mitsuharu Hirai, Satoshi Majima
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Patent number: 8232051Abstract: Primer sets for amplifying two genes (the CYP2C9 gene and the VKORC1 gene) by a gene amplification method are provided, wherein the primer sets can amplify respective target regions of the two genes specifically and efficiently in the same reaction system simultaneously. Two pairs of primer sets are used including forward primers consisting of the base sequences of SEQ ID NOs: 5 and 29 as well as reverse primers consisting of the base sequences of SEQ ID NOs: 18 and 38, respectively. The use of these primer sets makes it possible to specifically amplify target regions including sites where polymorphisms to be detected are generated in the CYP2C9 gene and the VKORC1 gene, in the same reaction solution simultaneously.Type: GrantFiled: March 24, 2008Date of Patent: July 31, 2012Assignee: ARKRAY, Inc.Inventors: Mitsuharu Hirai, Satoshi Majima
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Patent number: 8148079Abstract: A method of producing a PCR amplification product is provided that suppresses an effect of precipitate, turbidity, or the like derived from a whole blood sample on a detection in the detection of an amplified nucleic acid by an optical unit. The amplification product complementary to a target nucleic acid in the whole blood sample is produced by PCR in a condition where a ratio of the whole blood sample in a PCR reaction solution is in the range of 0.1 to 0.9% by volume or 0.01 to 1.8 g/L in term of hemoglobin content. When the PCR is carried out with such conditions, even with an untreated whole blood sample, a monitoring of the amplification product by the optical unit can be done while suppressing the effect of the precipitate or the turbidity.Type: GrantFiled: August 7, 2007Date of Patent: April 3, 2012Assignee: ARKRAY, Inc.Inventors: Yuji Izumizawa, Satoshi Majima
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Publication number: 20120021419Abstract: 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: ApplicationFiled: January 21, 2010Publication date: January 26, 2012Applicant: ARKRAY, Inc.Inventors: Mitsuharu Hirai, Satoshi Majima, Toshiya Hosomi
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Publication number: 20110287421Abstract: Primer sets for amplifying target regions containing sites to be detected in the NAT2 gene by a gene amplification method are provided, wherein the primer sets can amplify the regions specifically. Three pairs of primer sets are used including forward primers consisting of the base sequences of SEQ ID NOs: 7, 33, and 60 as well as reverse primers consisting of the base sequences of SEQ ID NOs: 18, 48 and 81, respectively. The use of these primer sets makes it possible to amplify three target regions including parts where three types of polymorphisms (NAT2*5, NAT2*6, and NAT2*7) of the NAT2 gene are generated, respectively, in the same reaction solution at the same time.Type: ApplicationFiled: April 12, 2011Publication date: November 24, 2011Inventors: Mitsuharu Hirai, Satoshi Majima
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Publication number: 20110281265Abstract: Primer sets for amplifying target regions containing sites to be detected in the UGT1A1 gene by a gene amplification method are provided, wherein the primer sets can amplify the regions specifically Three pairs of primer sets are used including forward primers consisting of the base sequences of SEQ ID NOs: 4 or 81, 21, and 42 as well as reverse primers consisting of the base sequences of SEQ ID NOs: 13 or 91, 29 and 48, respectively. The use of these primer sets makes it possible to amplify three target regions including parts where three types of polymorphisms (UGT1A1*6, UGT1A1*27, and UGT1A1*28) of the UGT1A1 gene are generated, respectively, in the same reaction solution at the same time.Type: ApplicationFiled: April 1, 2011Publication date: November 17, 2011Inventors: Mitsuharu Hirai, Satoshi Majima
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Publication number: 20110244460Abstract: The present invention provides a control detection method for easily detecting a positive control and a negative control simultaneously in one reaction system. An amplification reaction is carried out by adding a control template nucleic acid to a reaction system for detecting controls. The template nucleic acid can be amplified by a primer capable of amplifying an objective target sequence. An amplification region of the control template nucleic acid amplified by the primer can be hybridized with a detection probe capable of hybridizing to the target sequence. A Tm value (TmC) of a double-stranded nucleic acid composed of the amplification region of the control template nucleic acid amplified by the primer and the detection probe is set different from a Tm value (TmA) of a double-stranded nucleic acid composed of the target sequence and the detection probe.Type: ApplicationFiled: December 16, 2009Publication date: October 6, 2011Applicant: ARKRAY, Inc.Inventors: Mitsuharu Hirai, Satoshi Majima, Shinya Nakajima, Tatsuo Kamata
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Patent number: 8021845Abstract: Primer sets for amplifying target regions containing sites to be detected in the obesity gene (the ?2AR gene, the ?3AR gene, and the UCP1 gene) by a gene amplification method are provided, wherein the primer sets can amplify the regions specifically. Three pairs of primer sets are used including forward primers composed of the base sequences of SEQ ID NO: 9 or SEQ ID NO: 109, SEQ ID NO: 25, and SEQ ID NO:43 as well as reverse primers composed of the base sequences of SEQ ID NO: 18, SEQ ID NO: 30, and SEQ ID NO: 63, respectively. The use of these primer sets makes it possible to specifically amplify a target region including a site where a polymorphism to be detected is generated in the ?2AR gene, the ?3AR gene, and the UCP1 gene, in the same reaction solution at the same time.Type: GrantFiled: November 30, 2007Date of Patent: September 20, 2011Assignee: ARKRAY, Inc.Inventors: Mitsuharu Hirai, Satoshi Majima
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Publication number: 20100297617Abstract: Primer sets for amplifying target regions containing sites to be detected in the NAT2 gene by a gene amplification method are provided, wherein the primer sets can amplify the regions specifically. Three pairs of primer sets are used including forward primers consisting of the base sequences of SEQ ID NOs: 7, 33, and 60 as well as reverse primers consisting of the base sequences of SEQ ID NOs: 18, 48 and 81, respectively. The use of these primer sets makes it possible to amplify three target regions including parts where three types of polymorphisms (NAT2*5, NAT2*6, and NAT2*7) of the NAT2 gene are generated, respectively, in the same reaction solution at the same time.Type: ApplicationFiled: November 30, 2007Publication date: November 25, 2010Applicant: ARKRAY, INC.Inventors: Mitsuharu Hirai, Satoshi Majima
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Publication number: 20100273173Abstract: The present invention provides a method for amplifying a target sequence while suppressing inhibition of an amplification reaction in nucleic acid amplification in the presence of the probe. At the time of amplifying the target sequence, as the probe caused to coexist in amplification of the target sequence, a probe having a base sequence in which a melting temperature of the double-stranded nucleic acid is equal to or lower than a reaction temperature of the elongation reaction is used. In the presence of such a probe, for example, annealing of a primer and an elongation reaction from the primer are hardly inhibited by the presence of the probe so that amplification of the target sequence can be conducted sufficiently. Therefore, when a polymorphism of a target site in the target sequence is analyzed by a Tm analysis or the like, high reliability can be achieved.Type: ApplicationFiled: December 25, 2008Publication date: October 28, 2010Applicant: ARKRAY, INC.Inventors: Mitsuharu Hirai, Satoshi Majima, Toshiya Hosomi
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Publication number: 20100216123Abstract: A method of detecting a mutation is provided that uses Tm analysis and is excellent in detection sensitivity. A detection probe consisting of a polynucleotide complementary to a sequence to be detected containing a detection site that has been mutated and an inhibitory polynucleotide complementary to a sequence not to be detected containing the detection site that is unmutated are added to a sample containing a DNA to be detected in which the detection site has been mutated and a DNA not to be detected in which the detection site is unmutated, so that the detection probe is hybridized with the DNA. Then while the hybridization product between the DNA and the detection probe is heated, a signal variation associated with an increase in temperature is measured, then the signal variation is analyzed, and thereby a Tm value is determined, based on which the presence of the mutation is determined.Type: ApplicationFiled: July 27, 2007Publication date: August 26, 2010Applicant: ARKRAY, INC.Inventors: Mitsuharu Hirai, Satoshi Majima, Taira Maekawa, Shinya Kimura
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Publication number: 20100112559Abstract: Primer sets for amplifying target regions containing sites to be detected in the obesity gene (the ?2AR gene, the ?3AR gene, and the UCP1 gene) by a gene amplification method are provided, wherein the primer sets can amplify the regions specifically. Three pairs of primer sets are used including forward primers composed of the base sequences of SEQ ID NO: 9 or SEQ ID NO: 109, SEQ ID NO: 25, and SEQ ID NO:43 as well as reverse primers composed of the base sequences of SEQ ID NO: 18, SEQ ID NO: 30, and SEQ ID NO: 63, respectively. The use of these primer sets makes it possible to specifically amplify a target region including a site where a polymorphism to be detected is generated in the ?2AR gene, the ?3AR gene, and the UCP1 gene, in the same reaction solution at the same time.Type: ApplicationFiled: November 30, 2007Publication date: May 6, 2010Applicant: Arkray, Inc.Inventors: Mitsuharu Hirai, Satoshi Majima
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Publication number: 20100068713Abstract: A probe for detecting a mutation in the JAK2 gene is provided that can detect a target sequence containing a mutation even when the target sequence containing the mutation and a non-target sequence containing no mutation coexist, which are different only in a single base from each other. The probe to be used is an oligonucleotide that is at least one oligonucleotide having a sequence identical to that of a region extending from a cytosine base (C) at position 84 to be considered as the first base to any one of the 17th to 22nd bases in the direction toward the 5? end in exon 12 of the JAK2 gene consisting of the base sequence of SEQ ID NO: 1, with the cytosine base (C) being the 3? end. Even in the case of a sample containing both the JAK2 genes with a mutation that has occurred and without a mutation that has occurred, the use of such a probe in, for example, Tm analysis allows the former mutation to be detected. Preferably, the probe is labeled with a fluorescent dye.Type: ApplicationFiled: July 11, 2008Publication date: March 18, 2010Applicant: ARKRAY, INC.Inventors: Mitsuharu Hirai, Satoshi Majima, Taira Maekawa, Shinya Kimura
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Publication number: 20100047806Abstract: Polymorphism detection probes that can distinguish polymorphisms that have only one different base are provided. At least one oligonucleotide selected from the group consisting of the oligonucleotides of SEQ ID NOS. 4, 23, 30, 47, 57 and 64 is used as a probe in a Tm analysis. A Tm analysis using such probes allows easy detection of specific polymorphisms of the FCGR3A gene, the FCGR2A gene, the IL-10 gene, the TNF ? gene and the TNF 8 gene that have an effect on the pharmaceutical effects of antibody drugs or the like. Moreover, such probes allow detection of two or more types of polymorphisms in a single reaction system by introducing two or more types of the probes concomitantly.Type: ApplicationFiled: October 3, 2008Publication date: February 25, 2010Applicant: ARKRAY, INC.Inventors: Mitsuharu Hirai, Satoshi Majima
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Publication number: 20090269756Abstract: Primer sets for amplifying target regions containing sites to be detected in the CYP2C19 gene by a gene amplification method are provided, wherein the primer sets can amplify the regions specifically. Two pairs of primer sets are used including forward primers consisting of the base sequences of SEQ ID NOs: 12 and 32 as well as reverse primers consisting of the base sequences of SEQ ID NOs: 22 and 48, respectively. The use of these primer sets makes it possible to amplify two target regions including parts where two types of polymorphisms (CYP2C19*2 and CYP2C19*3) of the CYP2C19 gene are generated, respectively, in the same reaction solution at the same time.Type: ApplicationFiled: November 30, 2007Publication date: October 29, 2009Applicant: ARKRAY, INC.Inventors: Satoshi Majima, Yuki Yoshinaga