Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6140633 | Multi-optical-path photoelectric switch | Koumei Iwasaki | 2000-10-31 |
| 6111995 | Multi-optical-path photoelectric switch | Koumei Iwasaki | 2000-08-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6140633 | Multi-optical-path photoelectric switch | Koumei Iwasaki | 2000-10-31 |
| 6111995 | Multi-optical-path photoelectric switch | Koumei Iwasaki | 2000-08-29 |