Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469838 | Illumination device having light intensity distribution converting elements | Fumihiro Tawa | 2002-10-22 |
| 6359851 | Optical information detection apparatus | Nobuhide Aoyama | 2002-03-19 |
| 6356395 | Light intensity distribution converting device and optical data storage apparatus | Fumihiro Tawa | 2002-03-12 |