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Yoshiaki OHASHI

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  • Ibaraki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Salt of pentacyclic compound and crystal thereof
    • Patent number 11,420,980
    • Issue date Aug 23, 2022
    • Eisai R&D Management Co., Ltd.
    • Kenshi Yoshida
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Pentacyclic heterocycles
    • Patent number 11,358,972
    • Issue date Jun 14, 2022
    • Eisai R&D Management Co., Ltd.
    • Yoshiaki Ohashi
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Pentacyclic heterocycles
    • Patent number 11,267,821
    • Issue date Mar 8, 2022
    • Eisai R&D Management Co., Ltd.
    • Yoshiaki Ohashi
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Pentacyclic compound
    • Patent number 10,239,889
    • Issue date Mar 26, 2019
    • Eisai R&D Management Co., Ltd.
    • Yoshiaki Ohashi
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Pyranodipyridine compound
    • Patent number 9,738,656
    • Issue date Aug 22, 2017
    • Eisai R&D Management Co., Ltd.
    • Toshiki Kurokawa
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Pyrrolidin-3-ylacetic acid derivative
    • Patent number 8,476,301
    • Issue date Jul 2, 2013
    • Eisai R&D Management Co., Ltd.
    • Ichiro Yoshida
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Oxymethyl boron compounds
    • Patent number 7,696,347
    • Issue date Apr 13, 2010
    • Eisai R&D Management Co., Ltd.
    • Keigo Tanaka
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Nitrogen-containing condensed cyclic compound having a pyrazolyl gr...
    • Patent number 7,074,801
    • Issue date Jul 11, 2006
    • Eisai Co., Ltd.
    • Ichiro Yoshida
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

  • Information Patent Application

    SALT OF PENTACYCLIC COMPOUND AND CRYSTAL THEREOF
    • Publication number 20210024541
    • Publication date Jan 28, 2021
    • Eisai R&D Management Co., Ltd.
    • Kenshi Yoshida
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    PENTACYCLIC HETEROCYCLES
    • Publication number 20200283452
    • Publication date Sep 10, 2020
    • Eisai R&D Management Co., Ltd.
    • Yoshiaki Ohashi
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    PENTACYCLIC COMPOUND
    • Publication number 20190071452
    • Publication date Mar 7, 2019
    • Eisai R&D Management Co., Ltd.
    • Yoshiaki Ohashi
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Pyranodipyridine Compound
    • Publication number 20170137436
    • Publication date May 18, 2017
    • Eisai R&D Management Co., Ltd.
    • Toshiki Kurokawa
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Application

    PYRROLIDIN-3-YLACETIC ACID DERIVATIVE
    • Publication number 20130065925
    • Publication date Mar 14, 2013
    • Eisai R&D Management Co., Ltd.
    • Ichiro YOSHIDA
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Oxymethyl Boron Compounds
    • Publication number 20080242859
    • Publication date Oct 2, 2008
    • Eisai R&D Management Co., Ltd
    • Keigo Tanaka
    • C07 - ORGANIC CHEMISTRY