Patents by Inventor So Yasui

So Yasui 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).

  • Salts of compounds and crystals thereof
    Patent number: 11691990
    Abstract: The present invention provides crystals of (1R,3R,15E,28R,29R,30R,31R,34R,36R,39S,41R)-29,41-Difluoro-34,39-bis(sulfanyl)-2,33,35,38,40,42-hexaoxa-4,6,9,11,13,18,20,22,25,27-decaaza-34?5,39?5-diphosphaoctacyclo[28.6.4.13,36.128,31.04,8.07,12.019,24.023,27]dotetraconta-5,7,9,11,15,19,21,23,25-nonaene-34,39-dione (Compound (I)) ammonium salts, Compound (I) sodium salts, or Compound (I), possessing a potential to be used as drug substance in pharmaceuticals.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: July 4, 2023
    Assignee: Eisai R&D Management Co., LTD
    Inventors: Jun Niijima, Hirofumi Kuroda, So Yasui, Yoko Ito, Ikuo Kushida
  • SALTS OF COMPOUNDS AND CRYSTALS THEREOF
    Publication number: 20210198282
    Abstract: The present invention provides crystals of (1R,3R,15E,28R,29R,30R,31R,34R,36R,39S,41R)-29,41-Difluoro-34,39-bis(sulfanyl)-2,33,35,38, 40,42-hexaoxa-4,6,9,11,13,18,20,22,25,27-decaaza-34?5,39?5-diphosphaoctacyclo[28.6.4.13,36.128,31.04,8.07,12.019,24.023,27]dotetraconta-5,7,9,11,15,19,21,23,25-nonaene-34,39-dione (Compound (I)) ammonium salts, Compound (I) sodium salts, or Compound (I), possessing a potential to be used as drug substance in pharmaceuticals.
    Type: Application
    Filed: August 14, 2019
    Publication date: July 1, 2021
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Jun NIIJIMA, Hirofumi KURODA, So YASUI, Yoko ITO, Ikuo KUSHIDA
  • Pyrazolo[1,5-a]pyrimidine compound
    Patent number: 10227349
    Abstract: The disclosure provides pyrazolo[1,5-a]pyrimidine compounds, and pharmaceutically acceptable salts thereof, having protease-activated receptor 2 (PAR2) inhibitory action, pharmaceutical compositions containing the same, and methods of treatment using the same.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: March 12, 2019
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Richard Clark, Tetsuya Kawahara, Daisuke Iida, Shinsuke Hirota, Yasuaki Kamada, Toshiyuki Ohfusa, Naoki Yoneda, Fumiyoshi Matsuura, So Yasui
  • PYRAZOLO[1,5-a]PYRIMIDINE COMPOUND
    Publication number: 20180057499
    Abstract: The compounds represented by formulas (I) to (XVIII) or pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: August 29, 2017
    Publication date: March 1, 2018
    Inventors: Richard Clark, Tetsuya Kawahara, Daisuke Iida, Shinsuke Hirota, Yasuaki Kamada, Toshiyuki Ohfusa, Naoki Yoneda, Fumiyoshi Matsuura, So Yasui
  • Prodrug of triazolone compound
    Patent number: 8436009
    Abstract: By oral administration of a compound represented by the following Formula (I): the blood level of Compound (IV): which has an excellent inhibitory action against blood coagulation factor VIIa and the anticoagulant action, reaches a level sufficient for expression of its pharmacological actions. Therefore, the compound of the present invention is useful as a therapeutic and/or prophylactic agent for diseases caused by thrombus formation.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: May 7, 2013
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Richard Clark, Fumiyoshi Matsuura, Masanobu Shinoda, Shinsuke Hirota, Kazunobu Kira, Hiroshi Azuma, Atsushi Takemura, So Yasui, Kazutomi Kusano, Masaki Mikamoto, Takao Omae
  • PRODRUG OF TRIAZOLONE COMPOUND
    Publication number: 20130053563
    Abstract: By oral administration of a compound represented by the following Formula (I): the blood level of Compound (IV): which has an excellent inhibitory action against blood coagulation factor VIIa and the anticoagulant action, reaches a level sufficient for expression of its pharmacological actions. Therefore, the compound of the present invention is useful as a therapeutic and/or prophylactic agent for diseases caused by thrombus formation.
    Type: Application
    Filed: May 18, 2011
    Publication date: February 28, 2013
    Applicant: EISAI R&D MANAGEMENT CO., LTD.
    Inventors: Richard Clark, Fumiyoshi Matsuura, Masanobu Shinoda, Shinsuke Hirota, Kazunobu Kira, Hiroshi Azuma, Atsushi Takemura, So Yasui, Kazutomi Kusano, Masaki Mikamoto, Takao Omae