Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D739376 | Speaker box | — | 2015-09-22 |
| D732023 | Wireless receiver | — | 2015-06-16 |
| D691818 | Digital photo frame | Kazuhiko Shibata, Hitoshi Nakagawa | 2013-10-22 |
| D680525 | Portable computer | Katsuyoshi Deto, Ryuji Miki, Hitoshi Nakagawa, Kazuhiko Shibata, Ryoichi Yagi +1 more | 2013-04-23 |
| D676044 | Portable computer | Hitoshi Nakagawa, Kazuhiko Shibata, Ryoichi Yagi, Sugiko Honda, Ryuji Miki | 2013-02-12 |