Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6678999 | Object sensing system for use with automatic swing door | Shigeaki Sasaki | 2004-01-20 |
| 5963000 | Object sensor system for automatic swing door | Koji Tsutsumi | 1999-10-05 |
| 5828302 | Door sensor with self-diagnosing function | Koji Tsutsumi, Shigeaki Sasaki | 1998-10-27 |