Patents by Inventor Michio Maeda

Michio Maeda 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).

  • Patent number: 4870432
    Abstract: An ink-jet printing apparatus comprises a thermal printing head having heating elements, and a film nozzle member having a plurality of holes for holding an ink and a plurality of connecting grooves for connecting same of the plurality of holes, said plurality of connecting grooves being formed in a surface thereof opposing the heating elements of the thermal printing head. While the heating elements are selectively heated, bubbles are formed in the heated ink filled in the plurality of holes in the film nozzle member as it passes over the heating elements, said bubbles being formed adjacently to the heating elements, and the ink ejected from the plurality of holes by the pressure created by the bubbles is attached to a printing member conveyed near the film nozzle member in the vicinity of the thermal printing head, thereby performing printing.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: September 26, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Michio Maeda, Kiyoshi Hashimoto
  • Patent number: 4403950
    Abstract: A fixing device comprises a first rotatable roller in a fixed position, a heater provided in the first rotatable roller for heating the same, and a second rotatable roller facing the first rotatable roller and capable of being in contact therewith. The second rotatable roller is supported movably by shifting members. Each shifting member separates the second rotatable roller from the first roller at normal temperature and presses the second roller against the first rotatable roller when the shifting member is deformed by heat from the first roller heated by the heater.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: September 13, 1983
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventor: Michio Maeda