Patents by Inventor Yusuke Yamai

Yusuke Yamai 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).

  • 2-ALKYLCARBONYL[2,3-b]FURAN-4,9-DIONE PRODUCTION METHOD AND PRODUCTION INTERMEDIATE THEREFOR
    Publication number: 20220315551
    Abstract: Provided is a method for producing a substance related to 2-alkylcarbonylnaphtho[2,3-b]furan-4,9-dione that is suitable for industrial production. The present disclosure provides: a method for producing two production intermediates for 2-alkylcarbonyl[2,3-b]furan-4,9-dione by reacting commercially available 2-hydroxy-1,4-naphthoquinone with equally inexpensive, commercially available induced N,N-substituted formamide dimethyl acetal, and further reacting the product with an inexpensive commercially available 2-halo-1,4-diketone compound in the presence of water; and a substance related to the same.
    Type: Application
    Filed: June 12, 2020
    Publication date: October 6, 2022
    Applicant: SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Yoko TAKAHASHI, Yusuke YAMAI
  • NOVEL BICYCLIC HETEROCYCLIC COMPOUND
    Publication number: 20130303535
    Abstract: The invention provides a compound for the treatment or prophylaxis of pathology involving SNS, specifically diseases such as neuropathic pain, nociceptive pain, dysuria, multiple sclerosis and the like.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 14, 2013
    Inventors: Katsunori TSUBOI, Yusuke YAMAI, Hitoshi WATANABE, Hironori KINOSHITA
  • Bicyclic heterocyclic compound
    Patent number: 8471038
    Abstract: The invention provides a compound for the treatment or prophylaxis of pathology involving SNS, specifically diseases such as neuropathic pain, nociceptive pain, dysuria, multiple sclerosis and the like.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: June 25, 2013
    Assignee: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Katsunori Tsuboi, Yusuke Yamai, Hitoshi Watanabe, Hironori Kinoshita
  • NOVEL BICYCLIC HETEROCYCLIC COMPOUND
    Publication number: 20110294804
    Abstract: The invention provides a compound for the treatment or prophylaxis of pathology involving SNS, specifically diseases such as neuropathic pain, nociceptive pain, dysuria, multiple sclerosis and the like.
    Type: Application
    Filed: December 25, 2009
    Publication date: December 1, 2011
    Applicant: DAINIPPON SUMITOMO PHARMA CO., LTD.
    Inventors: Katsunori Tsubio, Yusuke Yamai, Hitoshi Watanabe, Hironori Kinoshita