Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797088 | Safety device for oil burner | Kazuharu Nakamura, Yoshio Mito, Yutaka Nakanishi, Toshihiko Yamada | 1989-01-10 |
| 4714426 | Ignition system for oil burner | Yutaka Nakanishi, Toshihiko Yamada, Takashi Kawai | 1987-12-22 |