Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6298878 | Ball cock for railway vehicle | Yoshio Asano, Osamu Akamatsu, Mitsumasa Morita | 2001-10-09 |
| 6161582 | Ball cock for railway vehicle | Yoshio Asano, Osamu Akamatsu, Mitsumasa Morita | 2000-12-19 |