Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5084593 | Leuco dyes and recording material employing the same | Hiroshi Gotoh, Shigeru Kusakata | 1992-01-28 |
| 5057154 | Leuco dyes and recording material employing the same | Shigeru Kusakata, Hiroshi Gotoh | 1991-10-15 |
| 5008238 | Leuco dyes and recording material employing the same | Hiroshi Gotoh, Shigeru Kusakata | 1991-04-16 |
| 4939117 | Leuco dyes and recording material employing the same | Shigeru Kusakata, Hiroshi Gotoh | 1990-07-03 |
| 4847385 | Cyanine dyes | Shigeru Kusakata, Aimi Suzuki | 1989-07-11 |