Patents by Inventor Junya Koga

Junya Koga 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).

  • MEMBER FOR OPTICAL GLASS MANUFACTURING APPARATUS
    Publication number: 20230017610
    Abstract: Provided is a member for optical glass manufacturing apparatus. The member is used for optical glass manufacturing apparatus and exposed to a gas containing a halogen element in a high temperature environment of 1100° C. or higher. The member includes dense ceramics containing silicon nitride as a main component, and a porosity of a surface layer of the member is smaller than a porosity of the inside of the member.
    Type: Application
    Filed: November 19, 2020
    Publication date: January 19, 2023
    Inventors: Masato HASHIMOTO, Junya KOGA, Toshikazu SAKIMOTO
  • Swimming training equipment
    Patent number: D941415
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: January 18, 2022
    Inventor: Junya Koga