Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7569211 | Ascorbic acid derivatives and skin-whitening cosmetics | Hiroharu Shibayama, Koichi Ueda, Satoshi Tachibana, Hiroshi Nishikawa, Masaru Yamabe | 2009-08-04 |
| 7282597 | Ascorbic acid derivatives and skin-whitening cosmetics | Hiroharu Shibayama, Koichi Ueda, Satoshi Tachibana, Hiroshi Nishikawa, Masaru Yamabe | 2007-10-16 |