Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374749 | Red dye and its solution | Kazuhito Kusaka, Sachio Wakayama, Yoshihiro Sekino, Kazuyoshi Kawazu | 1994-12-20 |
| 5283347 | Dye and its solution | Kazuhito Kusaka, Sachio Wakayama, Yoshihiro Sekino, Kazuyoshi Kawazu | 1994-02-01 |