Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5052002 | Method of detecting and indicating errors in a memory device | — | 1991-09-24 |
| 4901320 | Self-correcting semiconductor memory device and microcomputer incorporating the same | Kikuzo Sawada, Nobuhiro Tomari, Tomoaki Yoshida | 1990-02-13 |
| 4843224 | IC card | Satoshi Ohta | 1989-06-27 |
| 4812634 | IC card with a solar battery | Satoshi Ohta, Hideo Yamamoto, Keiji Kumagai | 1989-03-14 |