Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1010804 | Sensor for excrement detection | Kazuhiro Kakehata, Hiroshi Katayanagi | 2024-01-09 |
| 5467974 | Paper sheet stacking mechanism for mail sorting system | Tadashi Ishiwata, Tetsuo Ogata | 1995-11-21 |