Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6186756 | Shaft structure in screw rotor of screw fluid assembly | Yukihiro Kojima, Noboru Toda | 2001-02-13 |
| 6139298 | Shaft structure in screw rotor of screw fluid assembly | Yukihiro Kojima, Noboru Toda | 2000-10-31 |