Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10465590 | Changeover valve | Munehiro Tsubosaka, Yusuke Hiramatsu, Yasushi Okamoto, Kazuya Okamoto | 2019-11-05 |
| 9683476 | Exhaust gas purification device | Yoshinobu Nagata | 2017-06-20 |