Issued Patents All Time
Showing 76–100 of 122 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6909478 | Method for producing cholesteric liquid crystal color filters | Yuichi Wakata | 2005-06-21 |
| 6902687 | OPTICALLY ACTIVE ISOSORBIDE DERIVATIVE AND OPTICALLY ACTIVE ISOMANNIDE DERIVATIVE, PRODUCTION METHODS THEREOF, PHOTO-REACTIVE CHIRAL AGENT, LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL COLOR FILTER, OPTICAL FILM AND RECORDING MEDIUM, METHOD FOR CHANGING HELICAL STRUCTURE OF LIQUID CRYSTAL AND METHOD FOR FIXING HELICAL STRUCTURE OF LIQUID CRYSTAL | Masatoshi Yumoto, Keiichiro Hayashi, Ryuichi Kuroiwa | 2005-06-07 |
| 6893585 | Liquid crystal composition, selectively reflective film and method for producing the same | — | 2005-05-17 |
| 6875483 | Liquid crystal composition comprising liquid crystal molecules and alignment promoter | Ken Kawata, Hiroshi Takeuchi, Koushin Matsuoka | 2005-04-05 |
| 6853423 | Quarter wave plate comprising two optically anisotropic layers | Kohei Arakawa, Ken Kawata | 2005-02-08 |
| 6846540 | OPTICALLY ACTIVE POLYESTERAMIDES, PHOTOREACTIVE CHIRAL AGENTS, LIQUID CRYSTAL COMPOSITIONS, LIQUID CRYSTAL COLOR FILTERS, OPTICAL FILMS AND RECORDING MEDIA, AS WELL AS METHOD FOR CHANGING HELICAL STRUCTURE OF LIQUID CRYSTALS, AND METHOD FOR FIXING HELICAL STRUCTURE OF LIQUID CRYSTALS | Masatoshi Yumoto, Keiichiro Hayashi, Ryuichi Kuroiwa | 2005-01-25 |
| 6800219 | Liquid crystal composition, selectively reflective film and liquid crystal color filter | Masatoshi Yumoto | 2004-10-05 |
| 6800220 | OPTICALLY ACTIVE POLYESTER, PHOTOREACTIVE CHIRAL AGENT, LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL COLOR FILTER, OPTICAL FILM, RECORDING MEDIUM, METHOD OF CHANGING THE HELICAL STRUCTURE OF A LIQUID CRYSTAL, AND METHOD OF FIXING THE HELICAL STRUCTURE OF A LIQUID CRYSTAL | Masatoshi Yumoto, Kouya Kawabata | 2004-10-05 |
| 6788369 | Cholesteric liquid crystal color filter and process for producing the same | — | 2004-09-07 |
| 6778237 | Polarizing element | Kohei Arakawa | 2004-08-17 |
| 6686980 | Anisotropic film containing a copolymer including a monomer containing a dichroic dye and liquid crystal display containing the antisotropic film | — | 2004-02-03 |
| 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 |
| 6485798 | Optical compensatory sheet comprising substrate and optically anisotropic layer | Eiichiro Aminaka, Ken Kawata, Shigeki Yokoyama | 2002-11-26 |
| 6400433 | Circularly polarizing plate comprising linearly polarizing membrane and quarter wave plate | Kohei Arakawa, Ken Kawata | 2002-06-04 |
| 6338808 | Liquid crystal composition comprising liquid crystal molecules and alignment promoter | Ken Kawata, Shigeki Yokoyama, Koushin Matsuoka, Hiroshi Takeuchi | 2002-01-15 |
| 6337111 | Optically anisotropic thin film and process for producing the same | — | 2002-01-08 |
| 6219170 | Light modulation device, exposing device and display unit | Koichi Kimura | 2001-04-17 |
| 5943113 | Method of producing a liquid crystal display unit | — | 1999-08-24 |
| 5919397 | Ferroelectric liquid crystal composition | Kanetsugu Terashima, Makoto Kikuchi, Fusayuki Takeshita, Kenji Furakawa | 1999-07-06 |