Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10804432 | Free-standing substrate comprising polycrystalline group 13 element nitride and light-emitting element using same | Yoshitaka Kuraoka, Mikiya Ichimura, Takayuki Hirao | 2020-10-13 |
| 10734548 | Free-standing substrate comprising polycrystalline group 13 element nitride and light-emitting element using same | Yoshitaka Kuraoka, Mikiya Ichimura, Takayuki Hirao | 2020-08-04 |
| 10707373 | Polycrystalline gallium nitride self-supported substrate and light emitting element using same | Morimichi Watanabe, Kei Sato, Yoshitaka Kuraoka, Tsutomu Nanataki | 2020-07-07 |
| 10598369 | Heat discharge structures for light source devices and light source systems | Masahiko Namerikawa, Takashi Yoshino, Yoshitaka Kuraoka | 2020-03-24 |