Patents by Inventor Hideo Amatsu

Hideo Amatsu 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).

  • Storage receptacle for magnetic tape cassette
    Patent number: 4067629
    Abstract: A storage receptacle for a magnetic tape cassette which comprises a housing having spaced apart, parallel side walls which, between their forward edges, define an opening of the housing, and a holder pivotally connected with the housing for swinging movement through such opening between an opened position in which the holder projects forwardly from the housing for slidably receiving and relinquishing a cassette, and a closed position in which the holder cooperates with the housing for enclosing a cassette cradled in the holder between spaced apart side walls of the holder; flexibly resilient stop elements project inwardly from one of the side walls of the holder so as to be deflected out of the path of a cassette during its slidable insertion and removal in respect to the holder, while such stop elements return to their normal positions for engaging reel hubs of a cassette, and thereby resisting turning of the supply and takeup reels when the cassette is fully inserted or cradled in the cassette.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: January 10, 1978
    Assignee: Sony Corporation
    Inventors: Hideo Amatsu, Kazumi Fujimoto, Kishio Ikeda
  • Storage receptacle for magnetic tape cassette
    Patent number: 4055372
    Abstract: In a storage receptacle for a magnetic tape cassette comprising a housing having spaced apart, parallel side walls which, between their forward edges, define an opening of the housing, and a holder pivotally connected with the housing for swinging movement through such opening between an opened position in which the holder projects forwardly from the housing for receiving and relinquishing a cassette, and a closed position in which the holder cooperates with the housing for enclosing a cassette in the receptacle; the pivotal connection of the holder with the housing provides a fulcrum for the holder which is spaced rearwardly from the center of gravity of the holder with a cassette therein in all positions of the holder ranging from its closed position to its opened position so that the force of gravity urges the holder from its closed position to its opened position upon the release of a latch provided for releasably retaining the holder in its closed position, and such fulcrum for the holder is shifted forw
    Type: Grant
    Filed: April 6, 1976
    Date of Patent: October 25, 1977
    Assignee: Sony Corporation
    Inventors: Keizaburo Tozawa, Hideo Amatsu, Shinichiro Takahashi, Kazumi Fujimoto, Kishio Ikeda