Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5769622 | Gas combustion apparatus | Yutaka Aoki, Tetsuya Ohara | 1998-06-23 |
| 5599181 | Combustion apparatus having a built-in storage battery | Yutaka Aoki, Yuzuru Watanabe | 1997-02-04 |