Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6202703 | Corrosion resistant copper alloy tube and fin-tube heat exchanger | Motohisa Miyafuji, Kenju Minamoto, Mitsuhiro Ohkubo, Ryoichi Ozaki, Akinori Tsuchiya | 2001-03-20 |
| 5769129 | Cold-and hot-water supply copper-alloy pipe with inner-surface protective film, method for manufacturing same, and hot-water supply heat exchanger | Motohisa Miyafuji, Kenju Minamoto | 1998-06-23 |