Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D645851 | Keyboard for mobile phone | Koichi Sadatsuki, Yosuke Shimizu | 2011-09-27 |
| D645461 | Hinge for mobile phone | Koichi Sadatsuki, Yosuke Shimizu | 2011-09-20 |
| D641332 | Mobile phone | Koichi Sadatsuki, Yosuke Shimizu | 2011-07-12 |