Patents by Inventor Hidenori Banjo

Hidenori Banjo 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).

  • Method for recording signals/reproducing signals on/from film
    Patent number: 5101397
    Abstract: A method for recording signals on, and reproducing them from, a film for signal recording and reproduction, in which after coherent light is used to produce interference bands of light in accordance with signals, the interference bands of light are recorded on the film. In reproduction, the reproduction light by the coherent light is projected to an interference band section on the film, and diffractive light produced in the interference band section is detected for signal reproduction. That is, the interference bands of light corresponding to signals are recorded and reproduced. Recording and reproduction, therefore, can be effected with high fidelity and high quality without a change in sound characteristics likely to caused by film condition and an optical system.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: March 31, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Hidenori Banjo