Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10801507 | Vacuum pump, spiral plate provided in vacuum pump, rotating cylinder and method for manufacturing spiral plate | — | 2020-10-13 |
| 10662957 | Vacuum exhaust mechanism, compound type vacuum pump, and rotating body part | Manabu Nonaka | 2020-05-26 |