Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11105436 | Pipe alignment mechanism of butterfly valve | Takashi Nasu | 2021-08-31 |
| 11073213 | Butterfly valve | Takashi Nasu | 2021-07-27 |
| 11054042 | Eccentric butterfly valve | Takashi Nasu | 2021-07-06 |