Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8720735 | Pressure vessel | Susumu Terada, Tatsuo Nishihara | 2014-05-13 |
| 5930894 | Method for manufacturing heat exchangers | Rei Oikawa | 1999-08-03 |
| 5718285 | Heat exchanger and method for manufacturing heat exchangers | Rei Oikawa | 1998-02-17 |