Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6866795 | Ultraviolet-absorbing film containing a fluorescent brightening agent | Takashi Usami, Tadahisa Sato, Katsuyoshi Yamakawa | 2005-03-15 |
| 6682662 | Fluorescent lamp cover and lighting fixture | Takashi Usami, Tadahisa Sato, Katsuyoshi Yamakawa | 2004-01-27 |
| 5002853 | Positive working photosensitive composition | Toshiaki Aoai | 1991-03-26 |
| 4701399 | Photosensitive composition with 2-halomethyl-5-substituted-1,3,4-oxadiazole | Tadao Toyama, Akira Nagashima | 1987-10-20 |
| 4557994 | Light-sensitive printing plate with patterned matting layer | Eiji Nakakita, Toshiyuki Sekiya | 1985-12-10 |
| 4536464 | Photosensitive composition with o-quinonediazide compound and condensate of dihydric phenol and aldehyde or ketone | Akira Nagashima, Akira Hasegawa, Toshiaki Aoai | 1985-08-20 |
| 4505793 | Photopolymerizable compositions | Koji Tamoto, Akira Umehara, Masayuki Iwasaki, Yoshimasa Aotani | 1985-03-19 |
| 4504573 | Photopolymerizable compositions | Shun-ichi Ishikawa, Koji Tamoto, Fumiaki Shinozaki | 1985-03-12 |
| 4493884 | Light-sensitive composition | Akira Nagashima | 1985-01-15 |
| 4399210 | Photosensitive compositions | Akira Nagashima | 1983-08-16 |