Patents by Inventor Noboru Fukukawa

Noboru Fukukawa 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).

  • Disc driving device
    Patent number: 4797769
    Abstract: A disc driving device having a housing in which are formed by cutting a pair of front bearing portions in the vicinity of a disc drive motor mounting hole and a pair of rear bearing portions at predetermined distances from the front bearing portions, characterized in that a cutting tool relief slot contiguous to the rear bearing portions and deeper than a cutting allowance for those rear bearing portions is provided in the housing so that a cutting tool can move efficiently along the relief slot when it is moved from one rear bearing portion to the other.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: January 10, 1989
    Assignee: Alps Electric Co., Ltd.
    Inventors: Hiroaki Sasaki, Kazuo Hasegawa, Noboru Fukukawa, Masanori Yata