Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9271350 | Lighting control circuit, lamp, and lighting control method using the lighting control circuit | Masaharu Urano, Shigemi Hagiwara | 2016-02-23 |
| 5479433 | Direct current arc furnace | Toshimichi Maki, Hiroyuki Yamashita, Yoshimi Kawazu | 1995-12-26 |