Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6543770 | Card inverting device, card game machine, and card inverting method | Toshiyuki Kaji, Jiro Yoshida, Tomoyuki Kawano, Takuya Kawakami, Hiroshi Yagi +2 more | 2003-04-08 |
| 6538161 | Fluorescent substances | Tadao Nakaya, Akio Tajima, Hidemasa Mouri | 2003-03-25 |
| 6528657 | Fluorescent carbazole derivative | Tadao Nakaya, Akio Tajima, Hidemasa Mouri | 2003-03-04 |