Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871947 | Apparatus for automatically correcting arc position of high pressure discharge lamp | Makoto Yasuda | 1989-10-03 |
| 4803406 | High-pressure discharge lamp operating circuit | Makoto Yasuda, Seiichi Murayama, Yoji Arai, Fuzio Yamada | 1989-02-07 |