Patents by Inventor Yoh Mita

Yoh Mita 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).

  • Electroluminescent device including dichroic and infrared reflecting components
    Patent number: 3932881
    Abstract: A light source having an infrared-emitting diode and a luminescent material excitable in a step-like manner for converting the infrared radiation to visible rays comprises an optical cavity enclosing the luminescent material. A portion of the cavity wall is a dichroic filter that is substantially transparent to the visible rays but reflects the infrared radiation. The other cavity wall reflect the infrared radiation in particular.
    Type: Grant
    Filed: March 7, 1975
    Date of Patent: January 13, 1976
    Assignee: Nippon Electric Co., Inc.
    Inventors: Yoh Mita, Eiji Nagasawa