Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5252371 | Rewritable photochromic optical disk | Hitoshi Taniguchi, Fumio Matsui, Tsuneki Okazaki | 1993-10-12 |
| 4771060 | Novel skin-whitening agent | Yoshinori Nakagawa, Toshiko Suda | 1988-09-13 |
| 4380629 | Styryl-like compounds showing a color-developing and bleaching behavior with improved stability and prolonged lifetime | Akio Yamashita | 1983-04-19 |
| 4314058 | Indolins styryl-like compounds | Seiko Torikoshi | 1982-02-02 |