Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11084979 | Europium-activated alkaline-earth chloroapatite phosphor and light-emitting device thereof | Naotoshi Matsuda, Tatsunori Itoga, Masahiko Yamakawa, Yasuhiro Shirakawa | 2021-08-10 |
| 11005010 | Phosphor and method of manufacturing same, and LED lamp | Yoshitaka Funayama, Yumi Kanno, Tsutomu Ishii, Yasuhiro Shirakawa | 2021-05-11 |