Patents by Inventor Hirofumi Ogihara

Hirofumi Ogihara 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).

  • Method and system for controlling injection molding apparatus
    Patent number: 5861118
    Abstract: An injection molding machine includes a feedback control system for controlling both the speed and position of a control object, such as a movable platen or an injection screw. The feedback control system includes a driving mechanism connected to the control object and a monitor monitoring the position of the control object. The monitor transmits signals representative of the sensed position of the control object. A speed control system controls the driving mechanism until the control object reaches a threshold position. Thereafter, a position control system controls the driving mechanism. A switch is provided to change the feedback control system from the speed control system to the position control system.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: January 19, 1999
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Syuichi Hokino, Hirofumi Ogihara
  • Method of injection control for injection molding machine
    Patent number: 5514311
    Abstract: Holding pressure-intended changeover speed Vh (provided, Vh.noteq.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: May 7, 1996
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Miyuki Shimizu, Syuichi Hokino, Hirofumi Ogihara