Patents by Inventor Noriyoshi SAKAI

Noriyoshi SAKAI 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).

  • EUROPIUM ACTIVATING BETA-TYPE SIALON PHOSPHOR, AND LIGHT-EMITTING DEVICE
    Publication number: 20240026221
    Abstract: An europium activating ?-type sialon phosphor contains at least one kind of element selected from the group made of yttrium, titanium, and gadolinium, wherein the total content of the at least one kind of element is more than 0 ppm and less than 1000 ppm.
    Type: Application
    Filed: September 6, 2021
    Publication date: January 25, 2024
    Applicant: Denka Company Limited
    Inventors: Noriyoshi SAKAI, Ryousuke KONDO, Tomohiro NOMIYAMA, Keita KOBAYASHI