Patents by Inventor Kazumine Ito
Kazumine Ito 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: 10023860Abstract: [Object] To provide a method of purifying nucleic acids where the operation is simple and the nucleic acids can be extracted in a short time with high efficiency. [Solving Means] A method of purifying nucleic acids including the step of adsorbing substances in a sample containing nucleic acids with an ion exchange resin 10 including a positive ion exchange resin and a negative ion exchange resin. As the positive ion exchange resin, a first positive ion exchange resin and a second positive ion exchange resin having an exclusion limit molecular weight lower than that of the first positive ion exchange resin may be used.Type: GrantFiled: October 17, 2016Date of Patent: July 17, 2018Assignee: Sony CorporationInventors: Tomohiko Nakamura, Naohisa Sakamoto, Tasuku Yotoriyama, Kazumine Ito
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Patent number: 9909164Abstract: There is provided a method for preparing a sample for a nucleic acid amplification reaction, the method including a heating step of applying heat to a nucleic acid-containing sample, and an electrodialysis step of bringing an electrical conductivity of the sample to 2,000 ?S/cm or less.Type: GrantFiled: June 10, 2013Date of Patent: March 6, 2018Assignee: SONY CORPORATIONInventors: Tasuku Yotoriyama, Kazumine Ito, Naohisa Sakamoto, Tomohiko Nakamura
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Publication number: 20170029804Abstract: [Object] To provide a method of purifying nucleic acids where the operation is simple and the nucleic acids can be extracted in a short time with high efficiency. [Solving Means] A method of purifying nucleic acids including the step of adsorbing substances in a sample containing nucleic acids with an ion exchange resin 10 including a positive ion exchange resin and a negative ion exchange resin. As the positive ion exchange resin, a first positive ion exchange resin and a second positive ion exchange resin having an exclusion limit molecular weight lower than that of the first positive ion exchange resin may be used.Type: ApplicationFiled: October 17, 2016Publication date: February 2, 2017Inventors: Tomohiko Nakamura, Naohisa Sakamoto, Tasuku Yotoriyama, Kazumine Ito
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Patent number: 9523091Abstract: The present disclosure provides a nucleic-acid extraction method for carrying out the following procedures in the same cell, the procedures including: performing an ultrasonic process on a sample containing a nucleic acid; adsorbing substances contained in the sample by making use of an adsorption carrier; and condensing the nucleic acid by damming the nucleic acid moving in an electrophoresis phenomenon. In accordance with the nucleic-acid extraction method, it is possible to carry out an ultrasonic process, an adsorption process and an electrophoresis process in the same cell. Thus, it is possible to eliminate an operation to transfer the sample from one cell to another one for each of the processes.Type: GrantFiled: June 26, 2012Date of Patent: December 20, 2016Assignee: Sony CorporationInventors: Tasuku Yotoriyama, Tomohiko Nakamura, Naohisa Sakamoto, Kazumine Ito, Tomoteru Abe, Michihiro Ohnishi
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Patent number: 9498737Abstract: [Object] To provide a method of purifying nucleic acids where the operation is simple and the nucleic acids can be extracted in a short time with high efficiency. [Solving Means] A method of purifying nucleic acids including the step of adsorbing substances in a sample containing nucleic acids with an ion exchange resin 10 including a positive ion exchange resin and a negative ion exchange resin. As the positive ion exchange resin, a first positive ion exchange resin and a second positive ion exchange resin having an exclusion limit molecular weight lower than that of the first positive ion exchange resin may be used.Type: GrantFiled: August 28, 2012Date of Patent: November 22, 2016Assignee: Sony CorporationInventors: Tomohiko Nakamura, Naohisa Sakamoto, Tasuku Yotoriyama, Kazumine Ito
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Publication number: 20150203894Abstract: There is provided a method for preparing a sample for a nucleic acid amplification reaction, the method including a heating step of applying heat to a nucleic acid-containing sample, and an electrodialysis step of bringing an electrical conductivity of the sample to 2,000 ?S/cm or less.Type: ApplicationFiled: June 10, 2013Publication date: July 23, 2015Inventors: Tasuku Yotoriyama, Kazumine Ito, Naohisa Sakamoto, Tomohiko Nakamura
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Publication number: 20140334981Abstract: Provided is a microbead analysis method for a microbead. The microbead is formed in a columnar shape having a top surface and a bottom surface facing each other, as placed almost in parallel, and a side surface extending therefrom, and carries an identification pattern formed on at least one of the top surface and the bottom surface and a substance immobilized on a surface thereof having affinity to an analyte substance. The method includes detecting fluorescence emitted from the microbead surface due to interaction of the analyte substance with the substance having affinity to the analyte substance from a region including a region of the top surface and the bottom surface where there is no identification pattern formed and the side surface.Type: ApplicationFiled: May 23, 2014Publication date: November 13, 2014Applicant: Sony CorporationInventors: Kenzo Machida, Noriyuki Kishii, Mari Ichimura, Kazumine Ito, Takuya Kishimoto, Naohisa Sakamoto
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Publication number: 20140251809Abstract: An apparatus for preparing nucleic acids is provided which includes an anode, a cathode, and a space formed between the anode and the cathode. In addition, in the apparatus described above, the space includes a first porous film provided at an anode side, a second porous film provided at a cathode side, an inlet port which is proved in a region sandwiched between the first porous film and the second porous film and which introduces a specimen containing proteins and nucleic acids into the region, and a gel filter provided between the inlet port and the first porous film.Type: ApplicationFiled: February 18, 2014Publication date: September 11, 2014Applicant: Sony CorporationInventors: Naohisa Sakamoto, Tomohiko Nakamura, Kazumine Ito, Tasuku Yotoriyama
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Publication number: 20140197107Abstract: [Object] To provide a method of purifying nucleic acids where the operation is simple and the nucleic acids can be extracted in a short time with high efficiency. [Solving Means] A method of purifying nucleic acids including the step of adsorbing substances in a sample containing nucleic acids with an ion exchange resin 10 including a positive ion exchange resin and a negative ion exchange resin. As the positive ion exchange resin, a first positive ion exchange resin and a second positive ion exchange resin having an exclusion limit molecular weight lower than that of the first positive ion exchange resin may be used.Type: ApplicationFiled: August 28, 2012Publication date: July 17, 2014Applicant: SONY CORPORATIONInventors: Tomohiko Nakamura, Naohisa Sakamoto, Tasuku Yotoriyama, Kazumine Ito
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Patent number: 8753898Abstract: Provided is a microbead analysis method for a microbead. The microbead is formed in a columnar shape having a top surface and a bottom surface facing each other, as placed almost in parallel, and a side surface extending therefrom, and carries an identification pattern formed on at least one of the top surface and the bottom surface and a substance immobilized on a surface thereof having affinity to an analyte substance. The method includes detecting fluorescence emitted from the microbead surface due to interaction of the analyte substance with the substance having affinity to the analyte substance from a region including a region of the top surface and the bottom surface where there is no identification pattern formed and the side surface.Type: GrantFiled: September 8, 2010Date of Patent: June 17, 2014Assignee: Sony CorporationInventors: Kenzo Machida, Noriyuki Kishii, Mari Ichimura, Kazumine Ito, Takuya Kishimoto, Naohisa Sakamoto
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Patent number: 8701512Abstract: Disclosed herein is a cell for testing microbeads, used for testing microbeads each formed in a cylindrical shape having an upper surface and a lower surface opposite to and substantially parallel to each other and a side surface continuous with the upper and lower surfaces, at least one of the upper surface and the lower surface being provided with an identification pattern, the cell including: a support substrate; and a cover disposed opposite to the support substrate, wherein a space between the support substrate and the cover forms a containing space in which to dispose the microbeads, and the distance between the support substrate and the cover is greater than the thickness of the microbeads and smaller than twice the thickness of the microbeads.Type: GrantFiled: December 10, 2010Date of Patent: April 22, 2014Assignee: Sony CorporationInventors: Naohisa Sakamoto, Noriyuki Kishii, Kazumine Ito
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Publication number: 20130020201Abstract: The present disclosure provides a nucleic-acid extraction method for carrying out the following procedures in the same cell, the procedures including: performing an ultrasonic process on a sample containing a nucleic acid; adsorbing substances contained in the sample by making use of an adsorption carrier; and condensing the nucleic acid by damming the nucleic acid moving in an electrophoresis phenomenon. In accordance with the nucleic-acid extraction method, it is possible to carry out an ultrasonic process, an adsorption process and an electrophoresis process in the same cell. Thus, it is possible to eliminate an operation to transfer the sample from one cell to another one for each of the processes.Type: ApplicationFiled: June 26, 2012Publication date: January 24, 2013Applicant: Sony CorporationInventors: Tasuku Yotoriyama, Tomohiko Nakamura, Naohisa Sakamoto, Kazumine Ito, Tomoteru Abe, Michihiro Ohnishi
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Publication number: 20110138890Abstract: Disclosed herein is a cell for testing microbeads, used for testing microbeads each formed in a cylindrical shape having an upper surface and a lower surface opposite to and substantially parallel to each other and a side surface continuous with the upper and lower surfaces, at least one of the upper surface and the lower surface being provided with an identification pattern, the cell including: a support substrate; and a cover disposed opposite to the support substrate, wherein a space between the support substrate and the cover forms a containing space in which to dispose the microbeads, and the distance between the support substrate and the cover is greater than the thickness of the microbeads and smaller than twice the thickness of the microbeads.Type: ApplicationFiled: December 10, 2010Publication date: June 16, 2011Applicant: SONY CORPORATIONInventors: NAOHISA SAKAMOTO, NORIYUKI KISHII, KAZUMINE ITO
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Publication number: 20110136263Abstract: Provided is a microbead analysis method for a microbead. The microbead is formed in a columnar shape having a top surface and a bottom surface facing each other, as placed almost in parallel, and a side surface extending therefrom, and carries an identification pattern formed on at least one of the top surface and the bottom surface and a substance immobilized on a surface thereof having affinity to an analyte substance. The method includes detecting fluorescence emitted from the microbead surface due to interaction of the analyte substance with the substance having affinity to the analyte substance from a region including a region of the top surface and the bottom surface where there is no identification pattern formed and the side surface.Type: ApplicationFiled: September 8, 2010Publication date: June 9, 2011Applicant: Sony CorporationInventors: Kenzo Machida, Noriyuki Kishii, Mari Ichimura, Kazumine Ito, Takuya Kishimoto, Naohisa Sakamoto
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Publication number: 20090302223Abstract: A method of measuring a terahertz wave includes the steps of: starting input of a pulse signal showing that scale marks have been detected, which are arranged at equal intervals along a moving direction of a movable stage which can move in a direction in which an optical path length of incident pulse light is contracted or extended; and taking signals outputted at pulse intervals of the pulse light from a terahertz wave detecting section by synchronizing the timing with the pulse signal.Type: ApplicationFiled: June 9, 2009Publication date: December 10, 2009Applicant: Sony CorporationInventors: Sakuya Tamada, Kazumine Ito
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Patent number: 6775215Abstract: An optical disk apparatus for recording information of copyright on an optical disk where desired data are recorded by repetition of pits or marks. The apparatus comprises a recording means for recording the copyright information by irradiating a laser beam onto the optical disk in such a manner as to repeatedly form, in a predetermined area of the optical disk, local regions which cause greater changes in the return-light receiving result as compared with the pits or marks. On the optical disk, the existence ratio of the local regions for recording the copyright information is set to be less than 0.3 in the circumferential direction of the disk. In a reproduction mode, the copyright information recorded like a bar code for example can be exactly reproduced with certainty.Type: GrantFiled: June 6, 2001Date of Patent: August 10, 2004Assignee: Sony CorporationInventors: Seiji Kobayashi, Kazumine Ito, Toshihiro Horigome
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Patent number: 6418103Abstract: Disclosed are an apparatus for initializing an optical recording medium to be initialized with stability and ease without employing any focus servo means, and a phase-changing optical recording medium initialized by the initializing apparatus to have a recording layer in a uniform crystalline state over an entire area of the medium which takes part in recording and reproduction of an information signal. In the apparatus for initializing a phase-changing optical recording medium, a laser beam emitted from a laser beam source is irradiated to a recording layer, in an amorphous state, formed in an optical recording medium to be initialized, which is a pre-stage member of the phase-changing optical recording medium, for changing the recording layer into a crystalline state. The laser beam source, e.g.Type: GrantFiled: September 9, 1999Date of Patent: July 9, 2002Assignee: Sony CorporationInventors: Kazumine Ito, Manami Nakamura, Osamu Kawakubo, Hiroshi Kawase
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Patent number: 6373814Abstract: A method of initializing a phase-change optical disk which is capable of preventing enlargement of an amount of jitter which takes place when the number of overwriting operations does not exceed several times. The surface of the phase-change optical disk, on which information signals will be recorded, is crystallized. Then, signals are recorded with marks and spaces in grooves along tracks of the phase-change optical disk so that initialization is performed. The initialization is performed in such a manner that the length of each of spaces is shorter than a shortest length of spaces of information signals.Type: GrantFiled: January 9, 1998Date of Patent: April 16, 2002Assignee: Sony CorporationInventors: Yutaka Kasami, Kazumine Ito
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Publication number: 20020024904Abstract: An optical disk apparatus for recording information of copyright on an optical disk where desired data are recorded by repetition of pits or marks. The apparatus comprises a recording means for recording the copyright information by irradiating a laser beam onto the optical disk in such a manner as to repeatedly form, in a predetermined area of the optical disk, local regions which cause greater changes in the return-light receiving result as compared with the pits or marks. On the optical disk, the existence ratio of the local regions for recording the copyright information is set to be less than 0.3 in the circumferential direction of the disk. In a reproduction mode, the copyright information recorded like a bar code for example can be exactly reproduced with certainty.Type: ApplicationFiled: June 6, 2001Publication date: February 28, 2002Applicant: SONY CORPORATIONInventors: Seiji Kobayashi, Kazumine Ito, Toshihiro Horigome
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Publication number: 20010012262Abstract: A method of initializing a phase-change optical disk which is capable of preventing enlargement of an amount of jitter which takes place when the number of overwriting operations does not exceed several times. The surface of the phase-change optical disk, on which information signals will be recorded, is crystallized. Then, signals are recorded with marks and spaces in grooves along tracks of the phase-change optical disk so that initialization is performed. The initialization is performed in such a manner that the length of each of spaces is shorter than a shortest length of spaces of information signals.Type: ApplicationFiled: January 9, 1998Publication date: August 9, 2001Inventors: YUTAKA KASAMI, KAZUMINE ITO