Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4438373 | Low pressure metal vapor discharge lamp | Yoshio Watanabe, Teruichi Tomura | 1984-03-20 |
| 4335331 | Low pressure metal vapor discharge lamp | Yoshio Watanabe, Teruichi Tomura | 1982-06-15 |