AT

Ayako Takeichi

Hoechst Gmbh: 5 patents #756 of 4,020Top 20%
Overall (All Time): #663,764 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6549188 Ferroelectric liquid-crystal display with wide range of working temperatures Barbara Hornung, Hans-Rolf Dubal 2003-04-15
6171519 Ferroelectric liquid crystal mixture Toshiaki Nonaka, Li Ji, Kazuya Nagao, Rainer Wingen, Javier Manero +2 more 2001-01-09
6022492 Difluorophenyl pyrimidyl pyridine derivatives and the use thereof in liquid crystal mixtures Toshiaki Nonaka, Ji Li, Barbara Hornung, Javier Manero, Wolfgang Schmidt +1 more 2000-02-08
5880804 Process for producing ferroelectric liquid crystal device Hidemasa Yamaguchi, Toshiaki Nonaka, Kei Li 1999-03-09
5876628 Compounds for use in liquid-crystal composition Gerhard Illian, Hubert Schlosser, Ingrid Muller, Thoshiaki Nonaka, Kazuya Nagao +2 more 1999-03-02
5844653 Liquid crystal mixture Thoshiaki Nonaka, Kazuya Nagao, Hidemasa Yamaguchi 1998-12-01
5779935 Ferroelectric liquid crystal mixture Gerhard Illian 1998-07-14
5695683 Ferroelectric liquid crystal mixture Gerhard Illian 1997-12-09