Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810553 | Disposable brush | Kazuya Otsuji, Yasuki Tsutsumi, Kaoru Hamada, Jun Yamamoto, Keiichiro Sugai +3 more | 2004-11-02 |
| 6729230 | Calendar roll cleaning apparatus | Kenichi Tanihata | 2004-05-04 |