Patents by Inventor Hisaaki Matsui

Hisaaki Matsui 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).

  • Injection molding machine with a mold core drive apparatus
    Patent number: 5310331
    Abstract: In a core drive apparatus for an injection molding machine, a servomotor is used as a drive source to drive movable cores which, in conjunction with mold parts, define molding cavities. The servomotor is connected to a control device for controlling the drive of various injection molding machine units including the servomotor. The servomotor is connected to the movable cores by a driven shaft, gears, and screw shafts formed integrally with the movable cores, by attaching a movable mold body to a movable mold mounting section supporting the driven shaft. One end of the driven shaft is fitted on an output shaft of the servomotor attached to a movable platen so that attachment of a mold to the molding machine is facilitated.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: May 10, 1994
    Assignee: Fanuc Ltd
    Inventors: Shuichi Wakebe, Hisaaki Matsui, Motohiro Nagaya