Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6127943 | Audible traffic signal for visually impaired persons using multiple sound outputs | Masaki Tauchi, Hajime Sawai, Jinro Takato, Takashi Yoshiura, Toru Suzuki | 2000-10-03 |