Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4935772 | Method of and apparatus for controlling photographic printing lamp light output | Hiromitsu Wakui | 1990-06-19 |
| 4912621 | Current-balance switching regulator | Kazuo Kobayashi, Hiroo Tanaka, Katsuyuki Asahi, Osamu Kinoshita | 1990-03-27 |