Patents by Inventor Toshimasa HOSHINO

Toshimasa HOSHINO 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).

  • Ink fill device, ink filling method, ink cartridge manufacturing method and ink cartridge
    Patent number: 10099481
    Abstract: A joint section of a fill device is coupled to a supply opening of an ink cartridge, and a pressing force section presses an inside plug of the ink cartridge into the supply opening, to press down the inside plug against a biasing unit and release an opening to connect an ink fill section with an ink container. A first pump is operated and fills ink to the inside of the ink container. After the filling, the joint section separates from the supply opening, and the inside plug seals the supply opening by the biasing unit. Ink is filled with no spilling, into the ink container having an ink supply section with valve, and the ink cartridge can be manufactured with good efficiency.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: October 16, 2018
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Eijiro Arimura, Toshimasa Hoshino
  • INK FILL DEVICE, INK FILLING METHOD, INK CARTRIDGE MANUFACTURING METHOD AND INK CARTRIDGE
    Publication number: 20170246873
    Abstract: A joint section of a fill device is coupled to a supply opening of an ink cartridge, and a pressing force section presses an inside plug of the ink cartridge into the supply opening, to press down the inside plug against a biasing unit and release an opening to connect an ink fill section with an ink container. A first pump is operated and fills ink to the inside of the ink container. After the filling, the joint section separates from the supply opening, and the inside plug seals the supply opening by the biasing unit. Ink is filled with no spilling, into the ink container having an ink supply section with valve, and the ink cartridge can be manufactured with good efficiency.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 31, 2017
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Eijiro ARIMURA, Toshimasa HOSHINO