Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5043228 | Heat-sensitive transferring medium of delayed sending type | Tadatoshi Ohtsu | 1991-08-27 |
| 4948446 | Heat-sensitive transferring medium of delayed sending type | Tadatoshi Ohtsu | 1990-08-14 |
| 4857410 | Multi-type heat-sensitive transferring medium | — | 1989-08-15 |
| 4689274 | Multi-type heat-sensitive transferring medium | — | 1987-08-25 |
| 4631232 | Heat-sensitive transferring recording medium | Osamu Ikawa | 1986-12-23 |
| 4567113 | Heat-sensitive transferring recording medium | Tadatoshi Ohtsu | 1986-01-28 |