Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855279 | Heat-sensitive recording material | Akinori Okada, Hirokazu Ohkura | 1989-08-08 |
| 4837197 | Heat-sensitive recording material | Masahiro Higuchi, Hirokazu Ohkura | 1989-06-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855279 | Heat-sensitive recording material | Akinori Okada, Hirokazu Ohkura | 1989-08-08 |
| 4837197 | Heat-sensitive recording material | Masahiro Higuchi, Hirokazu Ohkura | 1989-06-06 |