Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8726839 | Material for treating excretion of pet | Jun Yamamoto, Hiroyuki Yamada | 2014-05-20 |
| 7891320 | Sheet for pets | Kazuya Otsuji, Jun Yamamoto | 2011-02-22 |
| D629930 | Electric PAR lamp | Henry E. Cotter, William H. Hessen, William L. McCracken | 2010-12-28 |
| 7128023 | Pet toilet | Kazuya Otsuji, Jun Yamamoto | 2006-10-31 |
| 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 |
| 6578520 | Absorbent mat for excreta treatment | Kazuya Otsuji, Hiromi Yamaguchi, Nobuya Sato | 2003-06-17 |
| 6047435 | Cleaning cloth and cleaning apparatus | Youichi Suzuki, Keiji Abe, Sachiko Aoki, Fumihiko Yoshiro, Harunobu Hirayama +1 more | 2000-04-11 |
| 5953784 | Cleaning cloth and cleaning apparatus | Youichi Suzuki, Keiji Abe, Sachiko Aoki, Fumihiko Yoshiro, Harunobu Hirayama +1 more | 1999-09-21 |