Patents by Inventor Naoki Manta

Naoki Manta 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).

  • IRON (III) CITRATE, SUBSTANTIALLY FREE OF BETA-IRON HYDROXIDE OXIDE
    Publication number: 20210032186
    Abstract: This invention provides a method for producing high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, and medical uses thereof.
    Type: Application
    Filed: March 11, 2020
    Publication date: February 4, 2021
    Applicant: Japan Tobacco Inc.
    Inventors: Koji Ando, Naoki Manta
  • Method for producing 7h-pyrrolo[2, 3-d]pyrimidine derivative and intermediate thereof
    Patent number: 10822354
    Abstract: The present invention provides a method for producing a 7H-pyrrolo[2,3-d]pyrimidine derivative that is useful as a janus kinase (JAK) inhibitor; an intermediate of the 7H-pyrrolo[2,3-d]pyrimidine derivative; and a method for producing the intermediate. The present invention provides a method for producing 3-[(3S,4R)-3-methyl-6-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,6-diazaspiro[3.4]octan-1-yl]-3-oxopropanenitrile, which uses a salt of an organic acid and (3S,4R)-3-methyl-1,6-diazaspiro[3.4]octane-1-carboxylic acid benzyl.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: November 3, 2020
    Assignee: Japan Tobacco Inc.
    Inventors: Takahiro Yamasaki, Yoshinori Hara, Takayuki Sakai, Kengo Murakami, Katsuyoshi Hara, Naoki Manta
  • Method for Producing 7h-pyrrolo[2, 3-d]pyrimidine Derivative and Intermediate Thereof
    Publication number: 20190062346
    Abstract: The present invention provides a method for producing a 7H-pyrrolo[2,3-d]pyrimidine derivative that is useful as a janus kinase (JAK) inhibitor; an intermediate of the 7H-pyrrolo[2,3-d]pyrimidine derivative; and a method for producing the intermediate. The present invention provides a method for producing 3-[(3S,4R)-3-methyl-6-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,6-diazaspiro[3.4]octan-1-yl]-3-oxopropanenitrile, which uses a salt of an organic acid and (3S,4R)-3-methyl-1,6-diazaspiro[3.4]octane-1-carboxylic acid benzyl.
    Type: Application
    Filed: July 6, 2016
    Publication date: February 28, 2019
    Inventors: Takahiro Yamasaki, Yoshinori Hara, Takayuki Sakai, Kengo Murakami, Katsuyoshi Hara, Naoki Manta
  • IRON (III) CITRATE, SUBSTANTIALLY FREE OF BETA-IRON HYDROXIDE OXIDE
    Publication number: 20180016220
    Abstract: This invention provides a method for producing high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, and medical uses thereof.
    Type: Application
    Filed: March 3, 2017
    Publication date: January 18, 2018
    Applicant: Japan Tobacco Inc.
    Inventors: Koji Ando, Naoki Manta
  • Iron (III) citrate, substantially free of beta-iron hydroxide oxide
    Patent number: 9624155
    Abstract: This invention provides a method for producing high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, and medical uses thereof.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: April 18, 2017
    Assignee: Japan Tobacco Inc.
    Inventors: Koji Ando, Naoki Manta
  • IRON (III) CITRATE, SUBSTANTIALLY FREE OF BETA-IRON HYDROXIDE OXIDE
    Publication number: 20150025138
    Abstract: This invention provides a method for producing high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, and medical uses thereof.
    Type: Application
    Filed: February 19, 2014
    Publication date: January 22, 2015
    Applicant: Japan Tobacco Inc.
    Inventors: Koji Ando, Naoki Manta
  • IRON (III) CITRATE, SUBSTANTIALLY FREE OF BETA-IRON HYDROXIDE OXIDE
    Publication number: 20120238622
    Abstract: This invention provides a method for producing high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, high-purity iron(III) citrate substantially free of beta-iron hydroxide oxide, and medical uses thereof.
    Type: Application
    Filed: January 18, 2012
    Publication date: September 20, 2012
    Applicant: Japan Tobacco Inc.
    Inventors: Koji Ando, Naoki Manta