Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6840842 | Burnishing pad, burnishing machine equipped with burnishing pad and burnishing method | Miyoko Hirai, Yukio Suzuki, Kazuo Irobe, Yoshihiro Suzuki, Naohiko Shimono +1 more | 2005-01-11 |
| 4219151 | Card verification system using stored functions | — | 1980-08-26 |