Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6698883 | Curable composition and photochromic cured article | Hironobu Nagou, Toshiaki Otani | 2004-03-02 |
| 6646104 | Process for production of sulfur compounds | Katsuhiro Mori, Tadashi Hara | 2003-11-11 |
| 6525194 | Chromene compound | Shingo Matsuoka, Hironobu Nagou | 2003-02-25 |
| 6469076 | Chromene compounds | Yasuko Komuro | 2002-10-22 |
| 6362248 | Photochromic polymerizable composition | Tadashi Hara, Yuichiro Kawabata, Hironobu Nagoh | 2002-03-26 |
| 6340765 | Chromene compound | Yuichiro Kawabata | 2002-01-22 |
| 6197225 | Chromene compound | Tsuneyoshi Tanizawa, Tadashi Hara, Yuichiro Kawabata, Hironobu Nagoh | 2001-03-06 |
| 6194511 | Photochromic curable composition | Tadashi Hara | 2001-02-27 |
| 6141135 | Photochromic composition | Hironobu Nagoh, Yuichiro Kawabata | 2000-10-31 |
| 6110400 | Fulgimide compound and use thereof and composition containing said compound | Hironobu Nagoh, Tsuneyoshi Tanizawa | 2000-08-29 |
| 5808100 | Chromene compounds and photochromic materials | Tadashi Hara | 1998-09-15 |
| 5693830 | Process for preparing the spiropyrone compounds | Satoshi Imura, Takashi Kobayakawa | 1997-12-02 |
| 5621017 | Photochromic composition and method producing photochromic cured product | Takashi Kobayakawa | 1997-04-15 |