Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803556 | Photoelectric sensor and method of detecting an object to be detected using the same | — | 2004-10-12 |
| 6774357 | Photoelectric switch device having detection result indicators | Koji Fukumura | 2004-08-10 |
| 6717523 | Photoelectric switch | — | 2004-04-06 |