Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6069676 | Sequential color display device | — | 2000-05-30 |
| 4962485 | Noncontacting IC card supplied with power from an outside source | Yoshiaki Kato, Tutomu Ojima, Hiromi Ishikawa | 1990-10-09 |