Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6554817 | Device for disposing excrement | Syuei Tamura, Hiroshi Sakai, Kimio Sato | 2003-04-29 |
| 6443939 | Device for disposing excrement | Syuei Tamura, Hiroshi Sakai, Kimio Sato | 2002-09-03 |