Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6675880 | Air heater for recovering a heat of exhaust gas | Masao Namba, Kenzo Miura, Yoshitada Tomoyasu, Hidehiro Kiuchi, Yasuaki Harada +2 more | 2004-01-13 |
| 4968363 | Method of preventing corrosion of a material against hydrochloric acid | Koji Hashimoto, Asahi Kawashima, Katsuhiko Asami | 1990-11-06 |