Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8584742 | Heat exchanger | Masayoshi Usui, Yasuaki Hashimoto, Koichi Hayashi, Shigeyuki Ishida, Tetsuo Ogata +2 more | 2013-11-19 |
| 7093650 | Heat conduction pipe externally covered with fin member | Yasuaki Hashimoto | 2006-08-22 |
| 6851723 | Ring joint, connection structure for connecting piping and ring joint, and method of connecting ring joint and piping | Masayoshi Usui | 2005-02-08 |