Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6551178 | Reamer with adjustable expansion/contraction, and bore finishing machine comprising the same | Junichi Tanaka, Eiji Takezawa | 2003-04-22 |
| 6203410 | Reamer with adjustable expansion/contraction, and bore finishing machine comprising the same | Junichi Tanaka, Eiji Takezawa | 2001-03-20 |