Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5573062 | Heat transfer tube for absorption refrigerating machine | Tatsuo Yoshisue, Takeshi Nishizawa, Gou Isobe | 1996-11-12 |
| 5186252 | Heat transmission tube | Takeshi Nishizawa | 1993-02-16 |