Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6235064 | Dye containing polarizing film | Kazuya Ogino, Narutoshi Hayashi, Takashi Omura | 2001-05-22 |
| 5700296 | Azo compound and a polarizing film containing the same | Kazuya Ogino, Kaneo Yokoyama, Narutoshi Hayashi, Takashi Omura | 1997-12-23 |
| 5609796 | Dye containing polarizing film | Kazuya Ogino, Narutohsi Hayashi, Takashi Omura | 1997-03-11 |
| 5496949 | Pyrazine derivatives | Ichiro Toida, Nanao Watanabe, Toshikazu Ura | 1996-03-05 |