Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5371694 | Scientific calculator | Fumiaki Kawawaki | 1994-12-06 |
| 5253191 | Electronic computer capable of entering unary operator using prefix notation | Fumiaki Kawawaki | 1993-10-12 |
| 5249147 | Electronic apparatus provided with device of calculating complex numbers | Fumiaki Kawawaki | 1993-09-28 |
| 5241489 | Electronic computer with fraction and exponent display | Fumiaki Kawawaki, Noboru Akizuki | 1993-08-31 |
| 5079732 | Multi-functional electronic desk calculator | Fumiaki Kawawaki, Noboru Akizuki | 1992-01-07 |
| 5065359 | Desk top calculator with access sequence control system for various constants | Fumiaki Kawawaki | 1991-11-12 |