Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7011150 | Tube structure of multitubular heat exchanger | Hirokazu Yokoyama, Noboru Shirako | 2006-03-14 |
| 5884589 | Cooling apparatus for heat exchanger | Yuichi Sakamoto, Ichiro Hirami, Yoshihiro Kato | 1999-03-23 |