Patents by Inventor Masao Ohkjita

Masao Ohkjita 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).

  • Disk drive device with unified actuator assembly
    Patent number: 5109310
    Abstract: A magnetic disk drive device for reading from or writing to a magnetic disk having an actuator assembly composed of a yoke plate, an actuator housing magnetic heads, a stopper for restricting the range of rotation of the actuator, and a solenoid bracket housing an actuator locking mechanism, wherein the actuator assembly is assembled as a single unit for mounting to and removing from the disk drive device.
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: April 28, 1992
    Assignee: Alps Electric Co., Ltd.
    Inventors: Masao Ohkjita, Makito Takikawa, Isao Asano