Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810553 | Disposable brush | Kazuya Otsuji, Masayuki Okawa, Kaoru Hamada, Jun Yamamoto, Keiichiro Sugai +3 more | 2004-11-02 |
| 6802281 | Absorbent mat for excreta treatment | Kazuya Otsuji, Hiromi Yamaguchi, Nobuya Sato | 2004-10-12 |