Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6298878 | Ball cock for railway vehicle | Yoshio Asano, Osamu Akamatsu, Yoshio Suetaka | 2001-10-09 |
| 6161582 | Ball cock for railway vehicle | Yoshio Asano, Osamu Akamatsu, Yoshio Suetaka | 2000-12-19 |
| 5988771 | Pressure control valve equipped with a solenoid valve | Kazunori Sakamoto, Yoshihiro Kitagawa, Yasuo Nakao, Tadashige Eto, Hiroaki Fukushita | 1999-11-23 |