Patents by Inventor Toshikazu IJlRO

Toshikazu IJlRO 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).

  • Publication number: 20210088707
    Abstract: To provide an optical element and an optical circuit enabling easy integration. An optical element has a quarter-wave plate formed on the X-Y plane and laminated in the Z-axis direction in three-dimensional space X, Y, Z. The groove in the wave plate is curved, and the angle relative to the Y-axis varies continuously in the range of 0° to 180°. The optical element separates and converts incoming circularly polarized light into light passing therethrough and circularly polarized light reversely rotating a given angle toward the X axis from the Z axis, and outputs the light.
    Type: Application
    Filed: July 13, 2018
    Publication date: March 25, 2021
    Inventors: Takayuki KAWASHIMA, Shojiro KAWAKAMI, Toshikazu IJlRO, Takafumi CHIBA