Patents by Inventor Hiroaki Ookubo

Hiroaki Ookubo 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).

  • Platen clutch mechanism
    Patent number: 4710046
    Abstract: A printer having a platen mounted on a shaft rotatably and a line indexing driving gear with a releasable clutch mechanism which couples selectively the platen and driving gear for line-by-line indexing or manual indexing of the platen.The clutch mechanism includes a first clutch means fixed on the shaft and a second clutch means which is moveable along the shaft with a knob.The driving gear mounted on the shaft rotatably engages with the second clutch.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: December 1, 1987
    Assignee: Matsushita Electric Industrial Co. Ltd.
    Inventor: Hiroaki Ookubo
  • Electric platen driving device with manual override
    Patent number: 4697943
    Abstract: The present invention relates to a driving device of platen used in printing devices such as typewriters, printers, etc., which is equipped with a motor, a first gear adapted to transmit the output from this motor and provided with notches on part thereof, a second gear which is intermittently driven by continuous rotation of this first gear and a platen driven through this second gear. A pawl holds the platen in place, but allows manual rotation thereof.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: October 6, 1987
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Hiroaki Ookubo