Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11125342 | Spool valve | Takahiro Minatani, Keiichi Nishikawa, Yoshinori Tanaka, Naofumi Yoshida | 2021-09-21 |
| 10907748 | Flow path switching valve and manufacturing method therefor | Akihiro Ito, Masayuki Kouketsu, Keiichi Nishikawa, Takahiro Minatani | 2021-02-02 |