Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6414603 | Method for displaying state of multi-optical-axis photoswitch and multi-optical-axis photoswitch adapted to the method | Akiji Yamaguchi, Toshio Okada | 2002-07-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6414603 | Method for displaying state of multi-optical-axis photoswitch and multi-optical-axis photoswitch adapted to the method | Akiji Yamaguchi, Toshio Okada | 2002-07-02 |