Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6274890 | Semiconductor light emitting device and its manufacturing method | Hiroaki Oshio, Iwao Matsumoto, Tsuguo Uchino, Hiroshi Nagasawa, Tadashi Umegi | 2001-08-14 |
| 5841177 | Multicolor light emitting device | Toshiaki Tanaka, Norio Fujimura | 1998-11-24 |
| 5763901 | Semiconductor light-emitting device and method for manufacturing the device | Toshiaki Tanaka, Norio Fujimura | 1998-06-09 |
| 5753940 | Light-emitting diode having narrow luminescence spectrum | — | 1998-05-19 |
| 5491349 | Multi-color light emitting device | Hiroshi Nagasawa, Hitoshi Kawasaki | 1996-02-13 |
| 5324962 | Multi-color semiconductor light emitting device | Hiroshi Nagasawa, Hitoshi Kawasaki | 1994-06-28 |
| 5289082 | LED lamp | — | 1994-02-22 |