Patents by Inventor Ryutaro Akiyoshi

Ryutaro Akiyoshi 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).

  • Publication number: 20230131011
    Abstract: A detection method of a target molecule in a specimen includes a (target molecule)-(labeled binding molecule)-(capturing molecule) complex forming step of reacting the target molecule in the specimen, a capturing molecule that binds to the target molecule, and a labeled binding molecule that binds to the target molecule and which is labeled with an enzyme that catalyzes a reaction to produce ATP, to form a complex formed of the target molecule, the capturing molecule, and the labeled binding molecule, a step of removing the labeled binding molecules which did not bind to the target molecule, an ATP production step of producing ATP by reacting the (target molecule)-(labeled binding molecule)-(capturing molecule) complex with a substrate of the enzyme that catalyzes a reaction to produce ATP, an ATP amplification step of amplifying the produced ATP, and an ATP detection step of detecting the amplified ATP.
    Type: Application
    Filed: May 21, 2021
    Publication date: April 27, 2023
    Inventor: Ryutaro AKIYOSHI
  • Publication number: 20220056559
    Abstract: To provide an Al—Mg—Si-based aluminum alloy sheet excellent in formability with excellent breaking elongation and work hardenability. An Al—Mg—Si-based aluminum alloy sheet excellent in formability contains Mg: 0.3 mass % or more and 0.45 mass % or less and Si: 0.6 mass % or more and 1.75 mass % or less with the balance being Al and inevitable impurities, in which, when content of the Mg is expressed [Mg] in terms of mass % and content of the Si is expressed [Si] in terms of mass %, [Si]/[Mg] is more than 2.5, a height of a first exothermic peak appearing in a temperature range of 210° C. or above and below 260° C. in a differential scanning thermal analysis curve is 20 ?W/mg or more, and a height of a second exothermic peak appearing in a temperature range of 260° C. or above and 370° C. or below in a differential scanning thermal analysis curve is 18 ?W/mg or more.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 24, 2022
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Shiwei KANG, Ryutaro AKIYOSHI
  • Publication number: 20220041995
    Abstract: A selection method of an iPS cell includes: at a reprogramming process to culture a cell including a plurality of combinations of initializing factors labelled with luminescent genes that are different with each other, acquiring a photon number per unit area or a photon number per unit time of each of the luminescent genes of the cell; judging whether the acquired photon number is more than a threshold that is predetermined for the acquired photon number; and when the acquired photon number is more than the threshold, selecting this cell as an objective cell for a next process.
    Type: Application
    Filed: September 1, 2021
    Publication date: February 10, 2022
    Applicant: OLYMPUS CORPORATION
    Inventor: Ryutaro AKIYOSHI
  • Publication number: 20200158719
    Abstract: A cell specifying method includes, for a first cell population including cells into which a nucleic acid encoding plural kinds of reprogramming factors necessary for reprogramming of somatic cells, and a nucleic acid encoding a luminescent reporter protein configured to be co-expressed with a kind of the plural kinds of reprogramming factors are introduced, acquiring a first luminescence image concerning luminescence caused by expression of the luminescent reporter protein, dividing the first cell population into second cell populations, for the second cell populations, acquiring a second luminescence image concerning luminescence caused by expression of the luminescent reporter protein, selecting objective cells from the first cell population based on the first luminescence image, and specifying the objective cells in the second cell populations based on the first luminescence image and the second luminescence image.
    Type: Application
    Filed: January 27, 2020
    Publication date: May 21, 2020
    Applicant: OLYMPUS CORPORATION
    Inventor: Ryutaro AKIYOSHI
  • Publication number: 20190352727
    Abstract: The disclosed technology provides a method for analyzing a somatic cell reprogramming, the method including acquiring luminescence images associated with luminescences attributed to expression of luminescent reporter proteins during a period of culturing cells transfected with a nucleic acid encoding plural types of transcription factors required for the somatic cell reprogramming and a nucleic acid encoding the luminescent reporter proteins configured to be co-expressed with at least one of the plural types of transcription factors in S12, quantifying luminescence intensities of the luminescences based on the luminescence images in S13, and evaluating expression states of the transcription factors to be co-expressed with the luminescent reporter proteins based on the luminescence intensities in S14, in which the expression states are indicators for evaluating whether a pluripotency has been acquired in the cell reprogramming process.
    Type: Application
    Filed: March 9, 2019
    Publication date: November 21, 2019
    Applicant: Olympus Corporation
    Inventor: Ryutaro Akiyoshi
  • Publication number: 20180103845
    Abstract: A method for assessing irritancy to a biological sample of the present invention is a method for assessing irritancy of a chemical to a three-dimensional biological sample having a plurality of layers in the depth direction and includes: image acquisition step of acquiring, at different depths of the biological sample, fluorescence images of a nuclei of cells in at least one group of a living cell group and a dead cell group in the biological sample exposed to the chemical, the nuclei of cells in at least one group being labeled with a fluorescent marker; and assessment step of calculating the ratio of the number of cells in the at least one cell group existing in the depth direction on the basis of the plurality of fluorescence images.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 19, 2018
    Applicant: OLYMPUS CORPORATION
    Inventor: Ryutaro AKIYOSHI
  • Patent number: 9523082
    Abstract: The present invention relates to a luciferase derived from a Malaysian Luciola firefly, the luciferase having a maximum luminescent wavelength of 557 nm at pH 8, or the luciferase inducing luminescence having 1.5 times or more the luminous intensity of luminescence induced by Photinus pyralis firefly luciferase.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: December 20, 2016
    Assignees: OLYMPUS CORPORATION, NIMURA GENETIC SOLUTIONS CO., LTD., PERAK STATE DEVELOPMENT CORPORATION
    Inventors: Ryutaro Akiyoshi, Katsunori Ogo, Hirobumi Suzuki
  • Patent number: 9328334
    Abstract: An object of the invention is to provide a novel and useful luciferase. The luciferase according to the embodiments of the invention is derived from Lucidina accensa.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: May 3, 2016
    Assignee: OLYMPUS CORPORATION
    Inventors: Katsunori Ogo, Ryutaro Akiyoshi, Mariko Murai, Takashi Kinebuchi, Hirobumi Suzuki
  • Patent number: 9234186
    Abstract: The present invention relates to a luciferase derived from a star-worm belonging to genus Diplocladon, the luciferase inducing luminescence such that a maximum luminous wavelength falls within a range of 557 to 562 nm over the entire pH range of 5.5 to 8.0, or the luciferase inducing luminescence having 1.5 times the luminous intensity of luminescence induced by Photinus pyralis firefly luciferase.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: January 12, 2016
    Assignees: OLYMPUS CORPORATION, NIMURA GENETIC SOLUTIONS CO., LTD., PERAK STATE DEVELOPMENT CORPORATION
    Inventors: Ryutaro Akiyoshi, Katsunori Ogo, Hirobumi Suzuki
  • Publication number: 20150291938
    Abstract: The present invention relates to a luciferase derived from a Malaysian Luciola firefly, the luciferase having a maximum luminescent wavelength of 557 nm at pH 8, or the luciferase inducing luminescence having 1.5 times or more the luminous intensity of luminescence induced by Photinus pyralis firefly luciferase.
    Type: Application
    Filed: April 11, 2014
    Publication date: October 15, 2015
    Applicants: OLYMPUS CORPORATION, PERAK STATE DEVELOPMENT CORPORATION, NIMURA GENETIC SOLUTIONS CO., LTD.
    Inventors: Ryutaro AKIYOSHI, Katsunori OGO, Hirobumi SUZUKI
  • Patent number: 8722376
    Abstract: According to one embodiment, the present invention relates to luciferase derived from Malaysian Luciola firefly, the luciferase having a maximum luminescent wavelength of 580 nm at pH 8, or the luciferase indicating 23.3 times or more of luminescent intensity in comparison to that of Rhodamine 6G.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: May 13, 2014
    Assignees: Olympus Corporation, Nimura Genetic Solutions Co., Ltd., Perak State Development Corporation
    Inventors: Katsunori Ogo, Ryutaro Akiyoshi, Hirobumi Suzuki
  • Publication number: 20140080199
    Abstract: An object of the invention is to provide a novel and useful luciferase. The luciferase according to the embodiments of the invention is derived from Lucidina accensa.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 20, 2014
    Applicant: OLYMPUS CORPORATION
    Inventors: Katsunori OGO, Ryutaro AKIYOSHI, Mariko MURAI, Takashi KINEBUCHI, Hirobumi SUZUKI
  • Publication number: 20140073031
    Abstract: The present invention relates to a luciferase derived from a star-worm belonging to genus Diplocladon, the luciferase inducing luminescence such that a maximum luminous wavelength falls within a range of 557 to 562 nm over the entire pH range of 5.5 to 8.0, or the luciferase inducing luminescence having 1.5 times the luminous intensity of luminescence induced by Photinus pyralis firefly luciferase.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 13, 2014
    Applicants: OLYMPUS CORPORATION, PERAK STATE DEVELOPMENT CORPORATION, NIMURA GENETIC SOLUTIONS CO., LTD.
    Inventors: Ryutaro AKIYOSHI, Katsunori OGO, Hirobumi SUZUKI
  • Publication number: 20130040326
    Abstract: According to one embodiment, the present invention relates to luciferase derived from Malaysian Luciola firefly, the luciferase having a maximum luminescent wavelength of 580 nm at pH 8, or the luciferase indicating 23.3 times or more of luminescent intensity in comparison to that of Rhodamine 6G.
    Type: Application
    Filed: August 20, 2012
    Publication date: February 14, 2013
    Applicants: OLYMPUS CORPORATION, PERAK STATE DEVELOPMENT CORPORATION, NIMURA GENETIC SOLUTIONS CO., LTD.
    Inventors: Katsunori OGO, Ryutaro AKIYOSHI, Hirobumi SUZUKI
  • Publication number: 20120270247
    Abstract: Disclosed is a luminescence measuring method which can produce a luminous intensity depending on the amount of a substance to be measured even when the substance occurs in a biological sample in an amount equal to or more than a given amount, and which can achieve quantitative measurement. The method is characterized by includes preparing a biological sample containing a luminescence-associated protein which is can react with a substance occurring in the biological sample in amount equal to or more than a given amount and which has a Km value equal to or higher than a predetermined value so that the luminous intensity can be quantified depending on the amount of the substance, measuring the luminescence intensity emitted from the biological sample, and outputting a result of the measurement on a regions and/or part of the biological sample.
    Type: Application
    Filed: March 16, 2012
    Publication date: October 25, 2012
    Applicant: OLYMPUS CORPORATION
    Inventors: Ryutaro AKIYOSHI, Hirobumi SUZUKI
  • Patent number: 8163661
    Abstract: Disclosed is a luminescence measuring method which can produce a luminous intensity depending on the amount of a substance to be measured even when the substance occurs in a biological sample in an amount equal to or more than a given amount, and which can achieve quantitative measurement. The method is characterized by includes preparing a biological sample containing a luminescence-associated protein which is can react with a substance occurring in the biological sample in amount equal to or more than a given amount and which has a Km value equal to or higher than a predetermined value so that the luminous intensity can be quantified depending on the amount of the substance, measuring the luminescence intensity emitted from the biological sample, and outputting a result of the measurement on a regions and/or part of the biological sample.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: April 24, 2012
    Assignee: Olympus Corporation
    Inventors: Ryutaro Akiyoshi, Hirobumi Suzuki
  • Publication number: 20100219353
    Abstract: A novel apparatus and a novel method of imaging a luminescence phenomenon of a sample of biological origin using an optical image formation device are provided. In the inventive method and apparatus, an illumination image acquired by illuminating the sample and a luminescence image acquired with the light emitted by a luminescence phenomenon of a cell in the sample without illuminating it are superposed to generate a superposition image. In the superposition image, an analysis region is determined. Thereby, even when the light detected in a luminescence observation is feeble, a luminescent cell and/or a luminescent site in a cell in a sample can be specified.
    Type: Application
    Filed: December 26, 2006
    Publication date: September 2, 2010
    Applicant: OLYMPUS CORPORATION
    Inventors: Ryutaro Akiyoshi, Hirobumi Suzuki, Morinao Fukuoka
  • Publication number: 20100209949
    Abstract: Disclosed is a luminescence measuring method which can produce a luminous intensity depending on the amount of a substance to be measured even when the substance occurs in a biological sample in an amount equal to or more than a given amount, and which can achieve quantitative measurement. The method is characterized by includes preparing a biological sample containing a luminescence-associated protein which is can react with a substance occurring in the biological sample in amount equal to or more than a given amount and which has a Km value equal to or higher than a predetermined value so that the luminous intensity can be quantified depending on the amount of the substance, measuring the luminescence intensity emitted from the biological sample, and outputting a result of the measurement on a regions and/or part of the biological sample.
    Type: Application
    Filed: March 17, 2010
    Publication date: August 19, 2010
    Applicant: OLYMPUS CORPORATION
    Inventors: Ryutaro AKIYOSHI, Hirobumi SUZUKI