Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5413479 | Discharge-type ignition device for oil burner | Yutaka Nakanishi, Toshihiko Yamada | 1995-05-09 |
| 5169306 | Multi-cylinder combustion structure for oil burner | — | 1992-12-08 |
| 5087195 | Combustion cylinder structure for oil burner | Yutaka Nakanishi | 1992-02-11 |