Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6983540 | Method for manufacturing elastic cylindrical body and method for manufacturing elastic roll | Mitsuru Tsunokawa, Atsuo Tanaka | 2006-01-10 |
| 6498493 | Electric potential detector, device tester and method of detecting electric potential | — | 2002-12-24 |
| 5753165 | Process for producing a hard roll | Atsuo Watanabe, Kenjiro Nakayama | 1998-05-19 |