Patents by Inventor Takeshi Matsuoka

Takeshi Matsuoka 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: 11959116
    Abstract: The present invention addresses the problem of providing a method for producing nicotinamide mononucleotide, that produces nicotinamide mononucleotide using a single enzyme and using nucleoside monophosphate, pyrophosphate, and nicotinamide as starting materials. This problem is solved by a nicotinamide mononucleotide production method that includes at least the following steps 1) and 2): 1) a first step of producing phosphoribosyl diphosphate by the action of substantially one enzyme on nucleoside monophosphate and pyrophosphate; and 2) a second step of producing nicotinamide mononucleotide by the action of only substantially the aforementioned one enzyme on nicotinamide and the phosphoribosyl diphosphate that is the product of the first step.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: April 16, 2024
    Assignee: ASAHI KASEI PHARMA CORPORATION
    Inventors: Takeshi Matsuoka, Tatsuya Hirata, Masaru Yamakoshi
  • Publication number: 20240029699
    Abstract: To provide a sound-insulating sheet member capable of being installed in a location with a limited installation space and allowing for insulation of low-frequency sound, and a sound-insulating structure body including the sound-insulating sheet member. A sound-insulating sheet member including a sheet portion having rubber elasticity, and a plurality of protrusion portions that is provided on at least one face of the sheet portion and that has rubber elasticity, in which at least one of the protrusion portions and a region of the sheet portion, where the protrusion portions are provided, contains a space portion.
    Type: Application
    Filed: September 27, 2023
    Publication date: January 25, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kazuma Inoue, Takahiro Komamura, Yuya Saito, Takeshi Matsuoka
  • Publication number: 20230125968
    Abstract: The present invention addresses the problem of providing a method for producing nicotinamide mononucleotide, that produces nicotinamide mononucleotide using a single enzyme and using nucleoside monophosphate, pyrophosphate, and nicotinamide as starting materials. This problem is solved by a nicotinamide mononucleotide production method that includes at least the following steps 1) and 2): 1) a first step of producing phosphoribosyl diphosphate by the action of substantially one enzyme on nucleoside monophosphate and pyrophosphate; and 2) a second step of producing nicotinamide mononucleotide by the action of only substantially the aforementioned one enzyme on nicotinamide and the phosphoribosyl diphosphate that is the product of the first step.
    Type: Application
    Filed: October 26, 2022
    Publication date: April 27, 2023
    Applicant: Asahi Kasei Pharma Corporation
    Inventors: Takeshi MATSUOKA, Tatsuya HIRATA, Masaru YAMAKOSHI
  • Publication number: 20220042067
    Abstract: The present invention provides a method for assisting a prediction of how likely a shunt trouble occurs, comprising a step of determining that the shunt trouble likely occurs, when a mevalonic acid concentration in a sample derived from a hemodialyzed patient is equal to or more than a preset cutoff value or increases with time.
    Type: Application
    Filed: September 27, 2019
    Publication date: February 10, 2022
    Applicants: ASAHI KASEI PHARMA CORPORATION, JAPAN COMMUNITY HEALTH CARE ORGANIZATION
    Inventors: Takeshi MATSUOKA, Shigeru UEDA, Satoru SANADA, Manabu KANDA, Hiroshi KITAMURA
  • Patent number: 10975411
    Abstract: The present invention provides a method for measuring the concentration of an analyte in a test solution wherein the analyte is mevalonic acid and/or 3-hydroxymethylglutaryl coenzyme A, comprising the following steps (p) and (q): (p) a step of allowing an enzyme that catalyzes a reaction represented by Reaction Formula 1 and an enzyme that catalyzes a reaction represented by Reaction Formula 2 to act on a test solution containing mevalonic acid and/or 3-hydroxymethylglutaryl coenzyme A in the presence of a hydrogen acceptor X, a hydrogen donor Y, and coenzyme A; and (q) a step of measuring an amount of: a reduced hydrogen acceptor X that is produced; or an oxidized hydrogen donor Y that is produced; or a hydrogen acceptor X that is decreased; or a hydrogen donor Y that is decreased, wherein the hydrogen donor Y and the reduced hydrogen acceptor X are not the same.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: April 13, 2021
    Assignee: ASAHI KASEI PHARMA CORPORATION
    Inventor: Takeshi Matsuoka
  • Publication number: 20170037443
    Abstract: The present invention provides a method for measuring the concentration of an analyte in a test solution wherein the analyte is mevalonic acid and/or 3-hydroxymethylglutaryl coenzyme A, comprising the following steps (p) and (q): (p) a step of allowing an enzyme that catalyzes a reaction represented by Reaction Formula 1 and an enzyme that catalyzes a reaction represented by Reaction Formula 2 to act on a test solution containing mevalonic acid and/or 3-hydroxymethylglutaryl coenzyme A in the presence of a hydrogen acceptor X, a hydrogen donor Y, and coenzyme A; and (q) a step of measuring an amount of: a reduced hydrogen acceptor X that is produced; or an oxidized hydrogen donor Y that is produced; or a hydrogen acceptor X that is decreased; or a hydrogen donor Y that is decreased, wherein the hydrogen donor Y and the reduced hydrogen acceptor X are not the same.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 9, 2017
    Applicant: ASAHI KASEI PHARMA CORPORATION
    Inventor: Takeshi MATSUOKA
  • Patent number: 9458491
    Abstract: The present invention provides a method for measuring the concentration of an analyte in a test solution wherein the analyte is mevalonic acid and/or 3-hydroxymethylglutaryl coenzyme A, comprising the following steps (p) and (q): (p) a step of allowing an enzyme that catalyzes a reaction represented by Reaction Formula 1 and an enzyme that catalyzes a reaction represented by Reaction Formula 2 to act on a test solution containing mevalonic acid and/or 3 -hydroxymethylglutaryl coenzyme A in the presence of a hydrogen acceptor X, a hydrogen donor Y, and coenzyme A; and (q) a step of measuring an amount of: a reduced hydrogen acceptor X that is produced; or an oxidized hydrogen donor Y that is produced; or a hydrogen acceptor X that is decreased; or a hydrogen donor Y that is decreased, wherein the hydrogen donor Y and the reduced hydrogen acceptor X are not the same.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: October 4, 2016
    Assignee: ASAHI KASEI PHARMA CORPORATION
    Inventor: Takeshi Matsuoka
  • Patent number: 9357702
    Abstract: An engine-powered work tool includes: a shaft extending in a first direction; an engine at a rear end portion of the shaft; a fuel tank disposed below the engine in a second direction perpendicular to the first direction; and a stand fixed to the engine. The stand includes a fastening portion fixed to a front end portion of the engine, and a curved portion extending from the fastening portion and curving toward a rear end portion of the engine. The curved portion provides a lower end portion positioned downstream of a bottom end portion of the fuel tank in the second direction. The lower end portion has a distal end positioned upstream of the rear end portion of the fuel tank in the first direction, the distal end and the bottom end of the fuel tank defining a gap therebetween in the second direction.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: June 7, 2016
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hideki Watanabe, Naoki Tsuruoka, Masayoshi Goto, Takeshi Matsuoka, Hiroyuki Hasegawa, Norihide Tao
  • Publication number: 20150047210
    Abstract: An engine-powered work tool includes: a shaft extending in a first direction; an engine at a rear end portion of the shaft; a fuel tank disposed below the engine in a second direction perpendicular to the first direction; and a stand fixed to the engine. The stand includes a fastening portion fixed to a front end portion of the engine, and a curved portion extending from the fastening portion and curving toward a rear end portion of the engine. The curved portion provides a lower end portion positioned downstream of a bottom end portion of the fuel tank in the second direction. The lower end portion has a distal end positioned upstream of the rear end portion of the fuel tank in the first direction, the distal end and the bottom end of the fuel tank defining a gap therebetween in the second direction.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 19, 2015
    Inventors: Hideki Watanabe, Naoki Tsuruoka, Masayoshi Goto, Takeshi Matsuoka, Hiroyuki Hasegawa, Norihide Tao
  • Patent number: 8268017
    Abstract: Provided are a method of stabilizing a leuco dye storable as a liquid for a long time, a method of reducing nonspecific color development thereof at a time of a color development reaction, and a stable liquid reagent composition using the methods. The inventors of the present invention found that coexistence of the leuco dye with a specific reducing agent resulted in suppression of self color development and its remarkably improved stability in a solution, and that when a color development reaction of the leuco dye with hydrogen peroxide was performed, coexistence of the leuco dye, in a reaction solution, with another dye which had an absorption spectrum not influencing a measurement wavelength of the leuco dye and did not react with hydrogen peroxide suppressed nonspecific color development and lowered a reagent blank value, which was applied to an analytical reagent.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: September 18, 2012
    Assignee: Asahi Kasei Pharma Corporation
    Inventors: Shigeru Ueda, Takeshi Matsuoka, Akihiko Kan
  • Patent number: 8118204
    Abstract: To provide a compact portable fastening tool which can be easily pushed at its handle portion onto a punched side, even in case a magazine is attached at an inclination with respect to the horizon, so that it can be easily used even in a narrow place. An electric fastening tool 1 comprises: a housing 2 having a handle portion 2B formed to extend from a trunk portion 2A; an ejection unit attached to the lower portion of the housing 2; a magazine 5 attached to the ejection unit; a motor housed in the housing 2; a battery pack 3 for driving the motor; a flywheel rotationally driven by the motor; a follower shaft selectively rotated by the kinetic energy of the flywheel; and a plunger adapted to be linearly moved in the housing 2 by the rotation of the follower shaft thereby to drive the nail fed into the ejection unit.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: February 21, 2012
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Hideki Ishida, Hitoshi Tsuzuki, Takeshi Matsuoka
  • Publication number: 20120040387
    Abstract: The present invention provides a method for measuring the concentration of an analyte in a test solution wherein the analyte is mevalonic acid and/or 3-hydroxymethylglutaryl coenzyme A, comprising the following steps (p) and (q): (p) a step of allowing an enzyme that catalyzes a reaction represented by Reaction Formula 1 and an enzyme that catalyzes a reaction represented by Reaction Formula 2 to act on a test solution containing mevalonic acid and/or 3-hydroxymethylglutaryl coenzyme A in the presence of a hydrogen acceptor X, a hydrogen donor Y, and coenzyme A; and (q) a step of measuring an amount of: a reduced hydrogen acceptor X that is produced; or an oxidized hydrogen donor Y that is produced; or a hydrogen acceptor X that is decreased; or a hydrogen donor Y that is decreased, wherein the hydrogen donor Y and the reduced hydrogen acceptor X are not the same.
    Type: Application
    Filed: January 19, 2009
    Publication date: February 16, 2012
    Applicant: ASAHI KASEI PHARMA CORPORATION
    Inventor: Takeshi Matsuoka
  • Patent number: 7943337
    Abstract: There is provided a method for specifically determining a glycated ?-chain N-terminal of glycated hemoglobin using enzymes without a separation operation, and a determination reagent kit therefor. A protease that cleaves a glycated amino acid and/or a glycated peptide from a glycated ?-chain N-terminal without substantially cleaving a glycated amino acid or a glycated peptide from a glycated ?-chain N-terminal of glycated hemoglobin or a fragment thereof is screened. The method of specifically determining a glycated ?-chain N-terminal of glycated hemoglobin and the determination reagent kit are provided by using the protease obtained by the screening method. According to the present invention, a glycated ?-chain N-terminal of glycated hemoglobin can specifically be determined without a separation operation.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: May 17, 2011
    Assignees: Asahi Kasei Pharma Corporation, Ichibiki Co., Ltd.
    Inventors: Takeshi Matsuoka, Shinji Koga, Takuji Kouzuma
  • Patent number: 7709232
    Abstract: The present invention relate to a method of detecting a genetic recombinant by using the PCR method. A method of quantitatively detecting method is provided whereby the total content ratio of the genetic recombinants and the individual content ratio of the genetic recombinant in a population containing plural genetic recombinant lines can be quantified. The method of the present invention comprises performing PCR for the DNA sequence specific to the recombinant and the endogenous DNA sequence shared by the species corresponding to the recombinant using, as a standard molecule, a molecule containing the DNA sequence specific to the recombinant and the endogenous DNA sequence shared by the species on the single molecule, and determining the content ratio of the number of molecules thereof.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: May 4, 2010
    Assignees: National Food Research Institute, Asahi Breweries, Ltd.
    Inventors: Akihiro Hino, Takeshi Matsuoka, Hideo Kuribara, Tomoaki Yoshimura, Yoichiro Shindo, Satoshi Futo, Machiko Ogawa
  • Publication number: 20090317851
    Abstract: There is provided a method for specifically determining a glycated ?-chain N-terminal of glycated hemoglobin using enzymes without a separation operation, and a determination reagent kit therefor. A protease that cleaves a glycated amino acid and/or a glycated peptide from a glycated ?-chain N-terminal without substantially cleaving a glycated amino acid or a glycated peptide from a glycated ?-chain N-terminal of glycated hemoglobin or a fragment thereof is screened. The method of specifically determining a glycated ?-chain N-terminal of glycated hemoglobin and the determination reagent kit are provided by using the protease obtained by the screening method. According to the present invention, a glycated ?-chain N-terminal of glycated hemoglobin can specifically be determined without a separation operation.
    Type: Application
    Filed: July 21, 2009
    Publication date: December 24, 2009
    Applicants: ASAHI KASEI PHARMA CORPORATION, ICHIBIKI CO., LTD.
    Inventors: TAKESHI MATSUOKA, SHINJI KOGA, TAKUJI KOUZUMA
  • Publication number: 20090266863
    Abstract: To provide a compact portable fastening tool which can be easily pushed at its handle portion onto a punched side, even in case a magazine is attached at an inclination with respect to the horizon, so that it can be easily used even in a narrow place. An electric fastening tool 1 comprises: a housing 2 having a handle portion 2B formed to extend from a trunk portion 2A; an ejection unit attached to the lower portion of the housing 2; a magazine 5 attached to the ejection unit; a motor housed in the housing 2; a battery pack 3 for driving the motor; a flywheel rotationally driven by the motor; a follower shaft selectively rotated by the kinetic energy of the flywheel; and a plunger adapted to be linearly moved in the housing 2 by the rotation of the follower shaft thereby to drive the nail fed into the ejection unit.
    Type: Application
    Filed: September 1, 2006
    Publication date: October 29, 2009
    Inventors: Hideki Ishida, Hitoshi Tsuzuki, Takeshi Matsuoka
  • Patent number: 7588910
    Abstract: There is provided a method for specifically determining a glycated ?-chain N-terminal of glycated hemoglobin using enzymes without a separation operation, and a determination reagent kit therefor. A protease that cleaves a glycated amino acid and/or a glycated peptide from a glycated ?-chain N-terminal without substantially cleaving a glycated amino acid or a glycated peptide from a glycated ?-chain N-terminal of glycated hemoglobin or a fragment thereof is screened. The method of specifically determining a glycated ?-chain N-terminal of glycated hemoglobin and the determination reagent kit are provided by using the protease obtained by the screening method. According to the present invention, a glycated ?-chain N-terminal of glycated hemoglobin can specifically be determined without a separation operation.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: September 15, 2009
    Assignees: Asahi Kasei Pharma Corporation, Ichibiki Co., Ltd.
    Inventors: Takeshi Matsuoka, Shinji Koga, Takuji Kouzuma, Issei Yoshioka, Atsuhisa Nishimura, Homare Itou, Toshihiko Kumazawa, Takashi Kuroyanagi
  • Patent number: 7490746
    Abstract: A power tool includes a hook portion having a hook holding portion, which is provided in a housing and has engaging teeth provided in the housing. A hook having a shaft portion is inserted into the hook holding portion and provided with fitting teeth meshing with the engaging teeth An elastic body is adapted to push the hook against a handle portion at all times, and a slip-off preventing part holding portion is adapted to move the hook in a direction of an axis thereof against a force of the elastic body and to cancel the mesh between the teeth to thereby enable the hook to turn.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: February 17, 2009
    Assignee: Hitachi koki Co., Ltd.
    Inventors: Masato Sakai, Takeshi Matsuoka, Chikai Yoshimizu, Masanori Watanabe, Katsuhiro Oomori, Takuya Teranishi
  • Publication number: 20080295259
    Abstract: Provided are a method of stabilizing a leuco dye storable as a liquid for a long time, a method of reducing nonspecific color development thereof at a time of a color development reaction, and a stable liquid reagent composition using the methods. The inventors of the present invention found that coexistence of the leuco dye with a specific reducing agent resulted in suppression of self color development and its remarkably improved stability in a solution, and that when a color development reaction of the leuco dye with hydrogen peroxide was performed, coexistence of the leuco dye, in a reaction solution, with another dye which had an absorption spectrum not influencing a measurement wavelength of the leuco dye and did not react with hydrogen peroxide suppressed nonspecific color development and lowered a reagent blank value, which was applied to an analytical reagent.
    Type: Application
    Filed: February 21, 2008
    Publication date: December 4, 2008
    Applicant: ASAHI KASEI PHARMA CORPORATION
    Inventors: Shigeru UEDA, Takeshi MATSUOKA, Akihiko KAN
  • Patent number: D589056
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: March 24, 2009
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Takeshi Matsuoka, Masanori Okada, Masato Sakai