Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6735230 | Semiconductor luminous elements and semiconductor laser | Ken Nakahara | 2004-05-11 |
| 6711198 | Light source device for laser beam printer | Jun Ichihara, Hisayoshi Kitajima, Ken Nakahara, Haruo Tanaka | 2004-03-23 |
| 6680959 | Semiconductor light emitting device and semiconductor laser | Norikazu Ito | 2004-01-20 |
| 6674098 | ZnO compound semiconductor light emitting element | Shigeru Niki, Paul Fons, Kakuya Iwata, Hidemi Takasu, Ken Nakahara | 2004-01-06 |