Patents by Inventor TATSUYA MATOU

TATSUYA MATOU 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: 20240022040
    Abstract: A surface emitting laser according to one embodiment of the present disclosure includes: a substrate having a convex part provided on a surface thereof; and a vertical resonator structure formed on the substrate, and including an active layer, a first semiconductor layer, and a current blocking layer. The first semiconductor layer is a semiconductor layer of a first conductivity type having a step structure part having a shape conforming to the convex part at a location facing the convex part. The current blocking layer is a semiconductor layer of a second conductivity type different from the first conductivity type and having an opening in which an inner peripheral surface is in contact with an outer peripheral surface of the step structure part.
    Type: Application
    Filed: October 20, 2021
    Publication date: January 18, 2024
    Inventors: RINTARO KODA, YASUTAKA HIGA, GO HIRANO, SHUHEI YAMAGUCHI, TATSUYA MATOU, HIDEKI WATANABE