Patents by Inventor Kensasku Abe

Kensasku Abe 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).

  • Wireless headphone
    Patent number: 5095382
    Abstract: A wireless headphone in which an infra-red light signal transmitted from a transmitting apparatus is received and reproduced as an audible sound by a headphone unit portion. A first light receiving element is provided on a top portion of a head band portion of the headphone so that, when a listener wears the wireless headphone, a light receiving surface included in the first light receiving element is directed rearward. Second and third light receiving elements are provided on the pair of headphone unit portions so that, when the listener wears the wireless headphone light receiving surfaces included in the second and third light receiving elements are directed forward.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: March 10, 1992
    Assignee: Sony Corporation
    Inventor: Kensasku Abe