Patents by Inventor Etsuya Okamoto

Etsuya Okamoto 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).

  • Immunostimulator, pharmaceutical composition, and food or beverage
    Patent number: 11559543
    Abstract: Provided is an immunostimulator containing: chitosan and/or a chitosan derivative each having a weight-average molecular weight of 10k to 1000k; and an anionic surfactant, the immunostimulator being in particulate form. Also provided are a pharmaceutical composition and an alimentary product, each containing the immunostimulator as an active ingredient.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: January 24, 2023
    Assignee: ZENOGEN PHARMA CO., LTD.
    Inventors: Etsuya Okamoto, Hiroaki Kodama
  • IMMUNOSTIMULATOR, PHARMACEUTICAL COMPOSITION, AND FOOD OR BEVERAGE
    Publication number: 20210069234
    Abstract: Provided is an immunostimulator containing: chitosan and/or a chitosan derivative each having a weight-average molecular weight of 10k to 1000k; and an anionic surfactant, the immunostimulator being in particulate form. Also provided are a pharmaceutical composition and an alimentary product, each containing the immunostimulator as an active ingredient.
    Type: Application
    Filed: August 2, 2017
    Publication date: March 11, 2021
    Inventors: Etsuya OKAMOTO, Hiroaki KODAMA
  • Pyrene-Based Organic Compound, Transistor Material and Light-Emitting Transistor Device
    Publication number: 20090179196
    Abstract: The object is to provide a light-emitting transistor material which is high in both luminescent property and mobility when used as a light-emitting transistor device. A light-emitting transistor device is provided in which light emission of a specific pyrene-based organic compound is used for a light-emitting layer of a transistor device.
    Type: Application
    Filed: March 20, 2007
    Publication date: July 16, 2009
    Inventors: Chihaya Adachi, Takahito Oyamada, Hiroyuki Uchiuzou, Seiji Akiyama, Takayoshi Takahashi, Kumiko Takenouchi, Masaki Shimizu, Tamejiro Hiyama, Etsuya Okamoto