Patents by Inventor Yoshiyuki Akiyama

Yoshiyuki Akiyama 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).

  • Patent number: 5200938
    Abstract: A disk magazine (1) for containing a plurality of disks (8) includes a detachable lid (4) for covering its disk outlet (2), openable to take out the disks, a plurality of disk-pushers (6) for pushing out the disks (8) one by one through the outlet (2). This arrangement prevents dust from entering or disks from popping out of the magazine when the disk magazine (1) is not in use. A compact recording/reproducing apparatus provided detachably with the disk magazine (1) can be constructed using a single motor (85) to drive a pushing lever (87) for selectively thrusting the disk pushers (6) to selectively push disks (8) out of the disk magazine (1), and using upper and lower disk feed rollers for loading the pushed disk (8) onto, or unloading it from, a recording/reproducing drive unit.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: April 6, 1993
    Assignee: Sony Corporation
    Inventors: Yoshiyuki Akiyama, Nobuyuki Hara