Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11530758 | Vacuum ejector and seal valve unit | Toru Nakayama, Yasuhiro Ushijima | 2022-12-20 |
| 11428342 | Vacuum ejector and seal valve unit | Toru Nakayama, Yasuhiro Ushijima | 2022-08-30 |
| 11266280 | Dust removing device and dust removing system | Yoshifumi Ohtsu, Toru Nakayama, Shigeyuki Eguchi, Koichi Konno, Junichi Inaba +3 more | 2022-03-08 |
| 11225889 | Silencer and ejector in which silencer is used | Toru Nakayama, Masayuki Enomoto, Masayoshi Yamamoto | 2022-01-18 |