Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5120208 | Molecular drag pump with rotors moving in same direction | Takeshi Toyoshima | 1992-06-09 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5120208 | Molecular drag pump with rotors moving in same direction | Takeshi Toyoshima | 1992-06-09 |