Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5197022 | Overflow detection calculator and method of overflow determination | Hiroshi Ushiki, Akira Masuda | 1993-03-23 |
| 4958151 | Display control circuit | Hiroshi Ushiki | 1990-09-18 |
| 4701748 | Key circuit | Hiroshi Ushiki | 1987-10-20 |