Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872829 | Fire-extinguishing device for oil burner | Kazuharu Nakamura, Yoshio Mito, Yutaka Nakanishi, Toshihiko Yamada, Kenji Nakamura | 1989-10-10 |
| 4810185 | Fire-extinguishing device for oil burner | Kazuharu Nakamura, Yoshio Mito, Yutaka Nakanishi, Toshihiko Yamada, Kenji Nakamura | 1989-03-07 |