Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6441127 | Alignment treating agent for liquid crystal cell | Kiyoshi Sawahata, Yoshihiro Tsuruoka, Hiroyoshi Fukuro | 2002-08-27 |
| 6196050 | Method of removing siloxanes from silicon compound gases and apparatus therefor, and siloxane content analyzing method and analyzing apparatus | Takuya Ikeda | 2001-03-06 |
| 5952557 | Apparatus for analyzing a silicon compound gas for siloxane content | Takuya Ikeda | 1999-09-14 |
| 5900532 | Method of removing siloxanes from silicon compound gases and apparatus therefor | Takuya Ikeda | 1999-05-04 |
| 5861534 | Diaminobenzene derivatives and polyimides prepared therefrom | Takayasu Nihira, Yoshio Miyamoto, Hideyuki Endo | 1999-01-19 |
| 5665856 | Diaminobenzene derivatives and polyimides prepared therefrom | Takayasu Nihira, Yoshio Miyamoto, Hideyuki Endo | 1997-09-09 |
| 5607732 | Treating method for aligning liquid crystal molecules and liquid crystal display device | Yoshio Miyamoto, Hideyuki Endo | 1997-03-04 |
| 5608033 | Liquid crystal alignment film | Takayasu Nihira, Yoshio Miyamoto, Hideyuki Endo | 1997-03-04 |
| 5422419 | Agent for alignment treatment for a liquid crystal cell | Makoto Mishina | 1995-06-06 |
| 5420233 | Agent for vertical orientation treatment | Hideyuki Isogai | 1995-05-30 |
| 5350539 | Alignment treating agent for liquid crystal cell | Makoto Mishina | 1994-09-27 |
| 5298590 | Liquid crystal alignment treating agent | Hideyuki Isogai, Yoshihiro Tsuruoka, Hiroyoshi Fukuro | 1994-03-29 |
| 5288588 | Positive photosensitive polyimide resin composition comprising an o-quinone diazide as a photosensitive compound | Masahiko Yukawa, Noriaki Kohtoh | 1994-02-22 |
| 5153304 | Fluorine containing diaminobenzene derivatives and its use | Yu Nagase, Yuriko Takamura, Noriaki Kohtoh, Hiroyoshi Fukuro | 1992-10-06 |
| 5144078 | Fluorine containing diaminobenzene derivatives and its use | Yu Nagase, Yuriko Takamura, Noriaki Kohtoh, Hiroyoshi Fukuro | 1992-09-01 |
| 5111318 | Ferroelectric liquid crystal element | Noriaki Kohtoh, Hiroyoshi Fukuro | 1992-05-05 |
| 5053480 | Polyimide resin from cyclobutane tetracarboxylic acid dianhydride | Noriaki Koto, Hideo Suzuki, Kanji Otsuka | 1991-10-01 |
| RE33342 | Liquid crystal aligning agent from tetracarboxylic acid dianhydride, diamine and monoamine | Noriaki Kohtoh, Hiroyoshi Fukuro | 1990-09-18 |
| 4929658 | Composition for liquid crystal aligning agent | Noriaki Kohtoh, Yoshihiro Tsuruoka, Hiroyoshi Fukuro | 1990-05-29 |
| 4749777 | Liquid crystal aligning agent from tetracarboxylic acid dianhydride, diamine and monoamine | Noriaki Kohtoh, Hiroyoshi Fukuro | 1988-06-07 |
| 4424321 | Process for producing copolymer of ethylene | Kazumi Tsubaki, Noriaki Koto | 1984-01-03 |
| 4398006 | Process for producing polybutene-1 | Kazumi Tsubaki, Noriaki Koto | 1983-08-09 |