Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12378471 | Phosphor, light-emitting device, illumination device, image display device, and indicator lamp for vehicle | Tomoyuki Kurushima, Atsushi Ooishi, Naoto Hirosaki | 2025-08-05 |
| 11697765 | Phosphor and light-emitting equipment using phosphor | Naoto Hirosaki, Hajime Yamamoto | 2023-07-11 |
| 11084980 | Phosphor and light-emitting equipment using phosphor | Naoto Hirosaki, Hajime Yamamoto | 2021-08-10 |
| 10072207 | Phosphor and light-emitting equipment using phosphor | Naoto Hirosaki, Hajime Yamamoto | 2018-09-11 |
| 9738829 | Phosphor and light-emitting equipment using phosphor | Naoto Hirosaki, Hajime Yamamoto | 2017-08-22 |
| 8409470 | Phosphor and light-emitting equipment using phosphor | Naoto Hirosaki, Hajime Yamamoto | 2013-04-02 |
| 8148887 | Light emitting diode lamp and light emitting device | Naoto Hirosaki, Ken Sakuma, Hajime Yamamoto | 2012-04-03 |
| 7833436 | Multinary oxynitride phosphor, and light emitting device, image display, illuminating device and phosphor-containing composition using the same, and multinary oxynitride | Satoshi Shimooka, Masayoshi Mikami, Naoto Kijima, Hiroyuki Imura, Kentaro Horibe | 2010-11-16 |
| 7573190 | Light emitting element and lighting instrument | Naoto Hirosaki, Ken Sakuma, Hajime Yamamoto | 2009-08-11 |
| 6676853 | Phosphor for vacuum ultraviolet excitation material | Tadashi Endo, Keiji Ono, Susumu Miyazaki | 2004-01-13 |
| 6527978 | Phosphor for vacuum ultraviolet ray-exciting light-emitting element | Tadashi Endo, Keiji Ono, Susumu Miyazaki | 2003-03-04 |