Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11852260 | Time delay valve and flow rate controller | Akira Tadano | 2023-12-26 |
| D984588 | Flow control valve | Akira Tadano | 2023-04-25 |
| 11339806 | Flow controller and driving apparatus including the same | Hirosuke Yamada, Kenji Fukushima | 2022-05-24 |
| 10871175 | Speed controller | Hirosuke Yamada, Naoyuki Suga, Masahiko Yoshiwara | 2020-12-22 |
| D875886 | Switching valve | — | 2020-02-18 |
| D875887 | Switching valve | — | 2020-02-18 |
| D858704 | Flow control valve | Hirosuke Yamada, Naoyuki Suga, Masahiko Yoshiwara | 2019-09-03 |
| D855153 | Flow control valve | Hirosuke Yamada, Naoyuki Suga, Masahiko Yoshiwara | 2019-07-30 |
| D854658 | Flow control valve | Hirosuke Yamada, Naoyuki Suga, Masahiko Yoshiwara | 2019-07-23 |
| D844751 | Flow control valve | Hirosuke Yamada, Naoyuki Suga, Masahiko Yoshiwara | 2019-04-02 |
| D753268 | Flow-rate control valve | — | 2016-04-05 |
| D736896 | Flow-rate control valve | — | 2015-08-18 |