Issued Patents 2003
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667794 | Collimator utilizing wavelength selective reflection and backlight system | Kohei Arakawa, Fumihiko Mochizuki, Kenichi Nakagawa | 2003-12-23 |
| 6645397 | Liquid crystal composition, color filter and optical film | — | 2003-11-11 |
| 6610216 | OPTICALLY ACTIVE COMPOUND, PHOTOREACTIVE CHIRAL AGENT, LIQUID CRYSTAL COMPOSITION, METHOD FOR CHANGING HELICAL STRUCTURE OF LIQUID CRYSTAL, METHOD FOR FIXING HELICAL STRUCTURE OF LIQUID CRYSTAL, LIQUID CRYSTAL COLOR FILTER, OPTICAL FILM, AND RECORDING MEDIUM | Masatoshi Yumoto, Keiichiro Hayashi | 2003-08-26 |
| 6593984 | Quarter wave plate comprising two optically anisotropic layers | Kohei Arakawa, Ken Kawata | 2003-07-15 |
| 6589445 | LIGHT-REACTION TYPE OPTICALLY ACTIVE COMPOUND, LIGHT-REACTION TYPE CHIRAL AGENT, LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL COLOR FILTER, OPTICAL FILM, RECORDING MEDIUM, AND METHOD OF CHANGING TWIST STRUCTURE OF LIQUID CRYSTAL | Takekatsu Sugiyama, Keiichiro Hayashi | 2003-07-08 |
| 6519016 | Phase retarder comprising two optically anisotropic layers | Ken Kawata, Kohei Arakawa | 2003-02-11 |
| 6519017 | Liquid crystal display comprising liquid crystal cell, linearly polarizing membrane, cholesteric liquid crystal layer and quarter wave plate | Ken Kawata, Kohei Arakawa | 2003-02-11 |