Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8230816 | Freestanding pet barrier | Satoshi Hirokawa | 2012-07-31 |
| 7954456 | Freestanding pet barrier | Satoshi Hirokawa | 2011-06-07 |
| 7739983 | Freestanding pet barrier | Satoshi Hirokawa | 2010-06-22 |
| 7568449 | Freestanding pet barrier | Satoshi Hirokawa | 2009-08-04 |
| D579609 | Freestanding pet barrier | Satoshi Hirokawa | 2008-10-28 |
| 7395784 | Pet toilet | Satoshi Hirokawa | 2008-07-08 |