Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9225893 | Information display device and display driving method | Yasutake Kawashima | 2015-12-29 |
| 8912886 | Power management system for electronic shelf labels and the like | Hidetaka Fujisawa, Masao Yamamoto | 2014-12-16 |
| 4386856 | Miniature electronic device having time informing sound generating function | — | 1983-06-07 |