Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888322 | Recording material containing leuco dye | Naoki Saito | 1989-12-19 |
| 4864024 | Leuco dyes | Kozo Sato | 1989-09-05 |
| 4839333 | Recording material containing leuco dye | Naoki Saito, Kozo Sato | 1989-06-13 |
| 4812440 | Recording material containing leuco dye | Ken Iwakura | 1989-03-14 |
| 4803148 | Light-sensitive material containing silver halide, reducing agent and polymerizable compound | Kozo Sato | 1989-02-07 |
| 4800148 | Light-sensitive material containing silver halide, reducing agent and polymerizable compound | Kozo Sato | 1989-01-24 |