Patents Assigned to Jiro Hori
  • Marker with pump and follower
    Patent number: 5249875
    Abstract: A marker including a cylindrical ink reservoir formed in a body, a slide plug inserted into the ink reservoir, a pen element slidably installed at the end of the body in the axial direction, and an elastic sealing member for pressuring ink and sending it to the pen element. For writing, ink is supplied to the pen element by the elastic sealing member and adequate ink is constantly contained in the pen element.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: October 5, 1993
    Assignee: Jiro Hori
    Inventors: Jiro Hori, Katsumi Hori
  • Writing instrument with overflow chamber and return to supply
    Patent number: 4509876
    Abstract: A writing instrument of an extremely simple structure in which stored ink previously extruded upon increase of the internal pressure of an ink chamber is subsequently sucked up by decrease of the internal pressure of the ink chamber and returned to the ink chamber, thereby preventing the outputting of ink drops in a downward orientation of pen, particularly when a large amount of ink is stored.
    Type: Grant
    Filed: June 14, 1983
    Date of Patent: April 9, 1985
    Assignees: Kotobuki & Co., Jiro Hori
    Inventor: Jiro Hori