Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8949043 | Surface inspecting apparatus and method for calibrating same | Kenji Oka, Kenji Mitomo | 2015-02-03 |
| 4978129 | Electronic game apparatus | Kenichi Inui | 1990-12-18 |
| 4569029 | Check calculator | Koichi Hatta | 1986-02-04 |
| 4528638 | Shopping calculator with comparison feature | Koichi Hatta | 1985-07-09 |
| 4511138 | Game calculating apparatus | Toshihiko Sumitani | 1985-04-16 |