Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7038744 | Polarizing plate having a stretched film on a side thereof and liquid crystal display employing the same | Koji Tasaka, Hiroki Umeda, Takatoshi Yajima | 2006-05-02 |
| 6881457 | Optical compensation film, viewing angle compensation integral type polarizing plate and liquid crystal display apparatus | Koji Tasaka, Takatoshi Yajima, Hiroki Umeda | 2005-04-19 |
| 6814914 | Cellulose ester film, its manufacturing method, optical retardation film, optical compensation sheet, elliptic polarizing plate, and image display | Koji Tasaka, Hiroki Umeda, Takatoshi Yajima | 2004-11-09 |
| 6740370 | Optical film and liquid crystal display using the same | Toshiaki Shibue, Makoto Honda, Nobuo Kubo, Hiroki Umeda, Sota Kawakami +1 more | 2004-05-25 |
| 6623811 | Optical film and liquid crystal display using the same | Toshiaki Shibue, Makoto Honda, Nobuo Kubo, Hiroki Umeda, Sota Kawakami +1 more | 2003-09-23 |
| 6503581 | Optical film and liquid crystal display using the same | Toshiaki Shibue, Makoto Honda, Nobuo Kubo, Hiroki Umeda, Sota Kawakami +1 more | 2003-01-07 |
| 5972713 | Method for determining total chlorine amount and a kit for determining total chlorine amount | Minoru Takada, Masayuki Numa | 1999-10-26 |