Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4907646 | Heat exchanger | Osamu Aoyagi, Shoichi Yokoyama, Eiji Nakatsuno, Shotaro Ito | 1990-03-13 |
HK
Hirotada Kaneko
Overall (All Time): #3,897,816 of 4,157,543Top 95%
1
Patents All Time