Inventor
TAKEUCHI KIYOFUMI
JP44 patents
⚠️ This page may combine multiple inventors who share the name “TAKEUCHI KIYOFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DAINIPPON INK & CHEMICALS
33 patentsUS5863457AJan 26, 1999
Polymerizable liquid crystal composition and optically anisotropic film comprising the same
DAINIPPON INK & CHEMICALS91 citations98
US5327271AJul 5, 1994
Liquid crystal device employing polymer network on one substrate and alignment layer or polymer network on other substrate
DAINIPPON INK & CHEMICALS111 citations97
US5296952AMar 22, 1994
Double-layer liquid crystal device having a three dimensional network structure
DAINIPPON INK & CHEMICALS59 citations95
US6010642AJan 4, 2000
Azine derivative, process for the preparation thereof, nematic liquid crystal composition and liquid crystal display system comprising same
DAINIPPON INK & CHEMICALS24 citations92
US7067179B1Jun 27, 2006
Fused ring compound
DAINIPPON INK & CHEMICALS23 citations89
US8860912B2Oct 14, 2014
Liquid crystal display device
DAINIPPON INK & CHEMICALS19 citations84
US7198827B1Apr 3, 2007
Nematic liquid crystal composition and liquid crystal display device using the same
DAINIPPON INK & CHEMICALS16 citations84
US6582626B2Jun 24, 2003
Polymerizable compound, polymerizable liquid crystal composition containing the same, and optically anisotropic medium made from the composition
DAINIPPON INK & CHEMICALS10 citations74
US6287646B1Sep 11, 2001
Fluorine-substituted-4-alkenylbenzoic acid and derivatives thereof, and nematic liquid crystal composition containing cyanophenyl benzoate derivatives and liquid crystal display system using the same
DAINIPPON INK & CHEMICALS9 citations74
US5178794AJan 12, 1993
Alkylene glycol derivative and liquid crystal mixture containing the same
DAINIPPON INK & CHEMICALS7 citations74
US4431853AFeb 14, 1984
Dicyclohexylethane derivatives
DAINIPPON INK & CHEMICALS17 citations73
US9587175B2Mar 7, 2017
Nematic liquid crystal composition
DAINIPPON INK & CHEMICALS3 citations72
US9321961B2Apr 26, 2016
Nematic liquid crystal composition
DAINIPPON INK & CHEMICALS4 citations72
US9181484B2Nov 10, 2015
Compound having 2-fluorophenyloxymethane structure
DAINIPPON INK & CHEMICALS6 citations72
US9442321B2Sep 13, 2016
Liquid crystal display device
DAINIPPON INK & CHEMICALS5 citations71
US7871540B2Jan 18, 2011
Polymerizable liquid crystal composition
DAINIPPON INK & CHEMICALS5 citations63
US6693223B1Feb 17, 2004
Fluorine-substituted-4-alkenylbenzoic acid and derivatives thereof, and nematic liquid crystal composition containing cyanophenyl benzoate derivatives and liquid crystal display system using the same
DAINIPPON INK & CHEMICALS5 citations63
US5208386AMay 4, 1993
Fluorine-substituted compound containing ether bond
DAINIPPON INK & CHEMICALS4 citations63
US5171472ADec 15, 1992
Phenylcyclohexyldioxane derivatives having an ether bond for electro-optical displays
DAINIPPON INK & CHEMICALS2 citations63
US5166448ANov 24, 1992
Intermediate for preparing fluorine-substituted compound containing ether bond
DAINIPPON INK & CHEMICALS4 citations63
US5068462ANov 26, 1991
Fluorine-substituted compound containing ether bond and intermediate thereof
DAINIPPON INK & CHEMICALS2 citations63
US9487700B2Nov 8, 2016
Liquid crystal display device
DAINIPPON INK & CHEMICALS2 citations61
US7112290B2Sep 26, 2006
Liquid crystal composition and liquid crystal display element
DAINIPPON INK & CHEMICALS1 citations52
US6607791B1Aug 19, 2003
Liquid crystal composition
DAINIPPON INK & CHEMICALS1 citations52
US5315024AMay 24, 1994
Cyano-substituted compound containing ether bond
DAINIPPON INK & CHEMICALS1 citations52
US5266235ANov 30, 1993
Phenylbicyclohexanol ester derivative
DAINIPPON INK & CHEMICALS0 citations52
US5152920AOct 6, 1992
Phenylbicyclohexanol ester derivative
DAINIPPON INK & CHEMICALS1 citations52
US4964616AOct 23, 1990
Tricyclic cyclohexenyl cyclohexane derivative
DAINIPPON INK & CHEMICALS0 citations52
US9605208B2Mar 28, 2017
Nematic liquid crystal composition
DAINIPPON INK & CHEMICALS1 citations51
US7232592B2Jun 19, 2007
Nematic liquid crystal composition containing indane compound
DAINIPPON INK & CHEMICALS1 citations51
US7108896B2Sep 19, 2006
Method of increasing helical twisting power, optically active compound, liquid crystal compostion containing the same, and liquid crystal display device
DAINIPPON INK & CHEMICALS0 citations42
US10544365B2Jan 28, 2020
Nematic liquid crystal composition
DAINIPPON INK & CHEMICALS0 citations41
US8361343B2Jan 29, 2013
Nematic liquid crystal composition and bistable nematic liqud crystal display
DAINIPPON INK & CHEMICALS0 citations41