Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6021846 | Duplex heat exchanger | Hironaka Sasaki, Hirohiko Watanabe, Nobuaki Goh | 2000-02-08 |
| 5743328 | Duplex heat exchanger | Hironaka Sasaki, Hirohiko Watanabe, Nobuaki Goh | 1998-04-28 |
| 5529116 | Duplex heat exchanger | Hironaka Sasaki, Hirohiko Watanabe, Nobuaki Goh | 1996-06-25 |
| 5033540 | Consolidated duplex heat exchanger | Hironaka Sasaki | 1991-07-23 |