Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6140321 | Polymorphs of donepezil hydrochloride and process for production | Akio Imai, Hideaki Watanabe, Takashi Kajima, Yasushi Ishihama, Akiyo Ohtsuka | 2000-10-31 |
| 5985864 | Polymorphs of donepezil hydrochloride and process for production | Akio Imai, Hideaki Watanabe, Takashi Kajima, Yasushi Ishihama, Akiyo Ohtsuka +1 more | 1999-11-16 |
| 5560907 | Whitening embellisher | Itaru Sakai, Kana Satoh, Yutaka Morita, Takashi Hibi, Yoshio Tanabe +2 more | 1996-10-01 |
| 5427775 | Whitening embellisher | Itaru Sakai, Kana Satoh, Yutaka Morita, Takashi Hibi, Yoshio Tanabe +2 more | 1995-06-27 |