Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6737623 | Photo-detecting semiconductor device and an apparatus having such a photo-detecting semiconductor device | Hiroshi Suzunaga | 2004-05-18 |
| 6724376 | LED driving circuit and optical transmitting module | Katsuji Kaminishi | 2004-04-20 |
| 6690340 | Light-emitting diode driving circuit and optical transmission module using the same | Katsuji Kaminishi | 2004-02-10 |