Inventor · disambiguated record
Sadao Takehara
Also filed as: TAKEHARA SADAO
23 granted patents·1 pending application·205 citations·filing 1987–2003
95Inventor score
Top patents by PatentIndex Score
24 records- 0187US6468607B1Naphthalene derivative and liquid crystal composition comprising the sameDAINIPPON INK & CHEMICALS·Filed 1999·Granted Oct 22, 2002·30 cites·21 claims
- 0278US7067179B1Fused ring compoundDAINIPPON INK & CHEMICALS·Filed 1999·Granted Jun 27, 2006·23 cites·15 claims
- 0370US6287646B1Fluorine-substituted-4-alkenylbenzoic acid and derivatives thereof, and nematic liquid crystal composition containing cyanophenyl benzoate derivatives and liquid crystal display system using the sameDAINIPPON INK & CHEMICALS·Filed 1998·Granted Sep 11, 2001·9 cites·16 claims
- 0469US7145047B2Naphthalene derivative and liquid crystal composition comprising the sameDAINIPPON INK & CHEMICALS·Filed 2002·Granted Dec 5, 2006·4 cites·5 claims
- 0569US6582626B2Polymerizable compound, polymerizable liquid crystal composition containing the same, and optically anisotropic medium made from the compositionDAINIPPON INK & CHEMICALS·Filed 2001·Granted Jun 24, 2003·10 cites·4 claims
- 0668US4997942A2,4-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the sameDAINIPPON INK & CHEMICALS·Filed 1989·Granted Mar 5, 1991·6 cites·5 claims
- 0765US6010642AAzine derivative, process for the preparation thereof, nematic liquid crystal composition and liquid crystal display system comprising sameDAINIPPON INK & CHEMICALS·Filed 1997·Granted Jan 4, 2000·24 cites·20 claims
- 0863US4828754ANovel liquid crystalline compounds having substituentsDAINIPPON INK & CHEMICALS·Filed 1988·Granted May 9, 1989·17 cites·21 claims
- 0960US6693223B1Fluorine-substituted-4-alkenylbenzoic acid and derivatives thereof, and nematic liquid crystal composition containing cyanophenyl benzoate derivatives and liquid crystal display system using the sameDAINIPPON INK & CHEMICALS·Filed 2003·Granted Feb 17, 2004·5 cites·3 claims
- 1059US6399035B1Reduction purification method of nitrogen oxide-containing exhaust gasCOSMO RES INST·Filed 1999·Granted Jun 4, 2002·19 cites·10 claims
- 1159US4914224AOptically active carboxylic acid derivatives and liquid crystalline compositions comprising themDAINIPPON INK & CHEMICALS·Filed 1987·Granted Apr 3, 1990·12 cites·3 claims
- 1256US7214835B21,7,8-Trifluoronaphthalene-2-naphthol, and method for producing liquid crystal compound using sameDAINIPPON INK & CHEMICALS·Filed 2003·Granted May 8, 2007·1 cites·8 claims
- 1353US5061398AOptically active lactone derivative, intermediate therefor, process for producing the intermediate, liquid-crystal composition, and liquid-crystal display deviceDAINIPPON INK & CHEMICALS·Filed 1990·Granted Oct 29, 1991·5 cites·28 claims
- 1451US6030590AReduction purification method of nitrogen oxide-containing exhaust gasCOSMO SOGO KENKYUSHO KK·Filed 1996·Granted Feb 29, 2000·16 cites·4 claims
- 1545US6746728B1Compound having tetrahydronaphthalene skeleton and liquid crystal composition containing sameDAINIPPON INK & CHEMICALS·Filed 1999·Granted Jun 8, 2004·3 cites·27 claims
- 1645US4943386ALiquid crystalline compounds having substituentsDAINIPPON INK & CHEMICALS·Filed 1988·Granted Jul 24, 1990·8 cites·19 claims
- 1742US2002053659A1Fluorine-substituted-4-alkenylbenzoic acid and derivatives thereof, and nematic liquid crystal composition containing cyanophenyl benzoate derivatives and liquid crystal display system using the sameDAINIPPON INK & CHEMICALS·Filed 2001·Application pending·0 cites
- 1837US5536443ACyclic hydrocarbon derivative and liquid crystal composition containing the sameDAINIPPON INK & CHEMICALS·Filed 1995·Granted Jul 16, 1996·3 cites·9 claims
- 1937US5474707ACyclic hydrocarbon derivative and liquid crystal composition containing the sameDAINIPPON INK & CHEMICALS·Filed 1994·Granted Dec 12, 1995·4 cites·20 claims
- 2036US5128472A2,5-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the sameDAINIPPON INK & CHEMICALS·Filed 1990·Granted Jul 7, 1992·3 cites·5 claims
- 2133US4911862AOptically active carboxylic acid derivatives and liquid crystalline compositions comprising themDAINIPPON INK & CHEMICALS·Filed 1988·Granted Mar 27, 1990·2 cites·8 claims
- 2230US5324451ALactic acid derivatives and liquid crystal compositions containing the sameDAINIPPON INK & CHEMICALS·Filed 1992·Granted Jun 28, 1994·1 cites·32 claims
- 2329US6913797B1Decahydronaphthalene derivativeDAINIPPON INK & CHEMICALS·Filed 1999·Granted Jul 5, 2005·0 cites·23 claims
- 2427US5064564AOptically active compound, intermediate therefor, process for producing the intermediate, and liquid-crystal compositionDAINIPPON INK & CHEMICALS·Filed 1990·Granted Nov 12, 1991·0 cites·11 claims
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