Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D328089 | Electronic calculator multi-function programmable | — | 1992-07-21 |
| D320225 | Memory card for electronic calculator | Yukinori Ido | 1991-09-24 |
| D317782 | Multi-function programmable electronic calculator | — | 1991-06-25 |