Inventor · disambiguated record
Takayuki Higashii
Also filed as: HIGASHII TAKAYUKI
42 granted patents·1 pending application·182 citations·filing 1987–2014
97Inventor score
Files withSUMITOMO CHEMICAL CO41RES INST INNOVATIVE TECH EARTH1RES INST OF INNOVATIVE TECH FOR THE EARTH1
Top patents by PatentIndex Score
43 records- 0187US6403832B1Process for producing optically active 3,3,3-Trifluoro-2-Hydroxy-2-Methylpropionic acid, and salt thereofSUMITOMO CHEMICAL CO·Filed 2000·Granted Jun 11, 2002·14 cites·7 claims
- 0281US6277998B1Production process and intermediate of tetrazole compoundSUMITOMO CHEMICAL CO·Filed 2000·Granted Aug 21, 2001·9 cites·7 claims
- 0380US5235068AProcess for producing acylaromatic compoundsSUMITOMO CHEMICAL CO·Filed 1992·Granted Aug 10, 1993·25 cites·26 claims
- 0478US5874593AProduction process and intermediate of tetrazole compoundSUMITOMO CHEMICAL CO·Filed 1995·Granted Feb 23, 1999·15 cites·11 claims
- 0577US6894190B2Process for producing optically active 3,3,3-trifluoro-2-hydroxy-2-methylpropionic acid, and salt thereofSUMITOMO CHEMICAL CO·Filed 2003·Granted May 17, 2005·6 cites·4 claims
- 0674US5658489ADiphenylacetylene compound, process for preparing the same and liquid crystal composition and element comprising the sameSUMITOMO CHEMICAL CO·Filed 1994·Granted Aug 19, 1997·13 cites·20 claims
- 0771US9636628B2Aqueous solution which efficiently absorbs and recovers carbon dioxide in exhaust gas, and method for recovering carbon dioxide using sameRES INST OF INNOVATIVE TECH FOR THE EARTH·Filed 2013·Granted May 2, 2017·3 cites·5 claims
- 0868US6191289B1Production process and intermediate of tetrazole compoundSUMITOMO CHEMICAL CO·Filed 1998·Granted Feb 20, 2001·10 cites·10 claims
- 0964US6653507B2Process for producing optically active 3,3,3-trifluoro-2-hydroxy-2-methylpropionic acid, and salt thereofSUMITOMO CHEMICAL CO·Filed 2002·Granted Nov 25, 2003·2 cites·10 claims
- 1060US4957867AProduction of cyclopentenones by enzyme resolutionSUMITOMO CHEMICAL CO·Filed 1987·Granted Sep 18, 1990·10 cites·37 claims
- 1159US6762306B2Chiral ligandSUMITOMO CHEMICAL CO·Filed 2002·Granted Jul 13, 2004·2 cites·2 claims
- 1258US5779934AFluorine-containing optically active compound, process for preparing the same and liquid crystal mixture and liquid crystal element comprising the sameSUMITOMO CHEMICAL CO·Filed 1995·Granted Jul 14, 1998·7 cites·15 claims
- 1355US5238598AOptically active aromatic compounds, preparation process thereof, and liquid crystal compositions and elementsSUMITOMO CHEMICAL CO·Filed 1990·Granted Aug 24, 1993·5 cites·8 claims
- 1455US5002693ANovel optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elementsSUMITOMO CHEMICAL CO·Filed 1988·Granted Mar 26, 1991·5 cites·13 claims
- 1554US5707547ATrans-olefin compounds, method for production thereof, liquid crystal composition containing the same as active ingredient, and liquid crystal element using said compositionSUMITOMO CHEMICAL CO·Filed 1994·Granted Jan 13, 1998·10 cites·3 claims
- 1652US6030546ATrans-olefin compounds, method for production thereof, liquid crystal composition containing the same as active ingredient, and liquid crystal element using said compositionSUMITOMO CHEMICAL CO·Filed 1997·Granted Feb 29, 2000·4 cites·14 claims
- 1752US4812585AProcess for producing 2-aceylfuran derivativesSUMITOMO CHEMICAL CO·Filed 1987·Granted Mar 14, 1989·4 cites·22 claims
- 1849US5659051AProcess of producing 2-cyano-4-oxo-4H-benzopyran compoundsSUMITOMO CHEMICAL CO·Filed 1994·Granted Aug 19, 1997·4 cites·13 claims
- 1948US5013479AOptically active ether derivatives, preparation process therefor, liquid crystal materials and an optical switching elementSUMITOMO CHEMICAL CO·Filed 1990·Granted May 7, 1991·8 cites·9 claims
- 2047US5447659AOptically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elementsSUMITOMO CHEMICAL CO·Filed 1994·Granted Sep 5, 1995·2 cites·16 claims
- 2146US5597929AProduction process of 2-(tetrazol-5-yl)-4-oxo-4H-benzopyranSUMITOMO CHEMICAL CO·Filed 1995·Granted Jan 28, 1997·3 cites·17 claims
- 2244US2016001220A1Liquid for absorbing and collecting carbon dioxide in gas, and method for collecting carbon dioxide with use of sameRES INST INNOVATIVE TECH EARTH·Filed 2014·Application pending·0 cites
- 2343US5389293AOptically active benzene derivatives, process for producing the same and liquid-crystalline composition containing said derivatives as liquid-crystalline compound and light switching elementsSUMITOMO CHEMICAL CO·Filed 1992·Granted Feb 14, 1995·2 cites·16 claims
- 2441US6930189B2Chiral ligandSUMITOMO CHEMICAL CO·Filed 2003·Granted Aug 16, 2005·0 cites·2 claims
- 2540US5338484AOptically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elementsSUMITOMO CHEMICAL CO·Filed 1993·Granted Aug 16, 1994·1 cites·1 claims
- 2639US5662828ACompound having unsaturated side chain, process for preparing the same, liquid crystalline polymer prepared from the same, liquid crystal mixture and display elementSUMITOMO CHEMICAL CO·Filed 1995·Granted Sep 2, 1997·5 cites·12 claims
- 2738US5637736AProcess for preparing 1-bromoalkylbenzene derivatives and intermediates thereofSUMITOMO CHEMICAL CO·Filed 1994·Granted Jun 10, 1997·1 cites·8 claims
- 2838US5332675AOptically active aromatic carboxylic acid derivatives and process for producing the sameSUMITOMO CHEMICAL CO·Filed 1992·Granted Jul 26, 1994·1 cites·8 claims
- 2938US5124070AOptically active ester derivatives, preparation process thereof, liquid crystal materials and a light switching elementSUMITOMO CHEMICAL CO·Filed 1989·Granted Jun 23, 1992·1 cites·13 claims
- 3037US5019298AOptically active aromatic carboxylic acid derivatives and process for producing the sameSUMITOMO CHEMICAL CO·Filed 1988·Granted May 28, 1991·1 cites·4 claims
- 3136US7279537B2Transition metal complexes and polymerization catalystsSUMITOMO CHEMICAL CO·Filed 2003·Granted Oct 9, 2007·0 cites·6 claims
- 3235US5554317ACompound having unsaturated side chain, process for preparing the same, liquid crystalline polymer prepared from the same, liquid crystal mixture and display elementSUMITOMO CHEMICAL CO·Filed 1994·Granted Sep 10, 1996·3 cites·7 claims
- 3334US5545345ALiquid crystal mixture and liquid crystal element comprsing the sameSUMITOMO CHEMICAL CO·Filed 1994·Granted Aug 13, 1996·3 cites·8 claims
- 3434US5539115APhenylpyrimidine derivatives, process for preparing the same, liquid crystal composition containing said derivatives as active ingredient, and liquid crystal elements using such compositionsSUMITOMO CHEMICAL CO·Filed 1993·Granted Jul 23, 1996·0 cites·17 claims
- 3534US5274168AOptically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elementsSUMITOMO CHEMICAL CO·Filed 1992·Granted Dec 28, 1993·2 cites·1 claims
- 3633US5723610AAlcohol reactants for forming phenylpyrimidine derivatives and process for preparing said alcoholsSUMITOMO CHEMICAL CO·Filed 1996·Granted Mar 3, 1998·0 cites·4 claims
- 3733US5693251AOptically active benzene derivatives, process for producing the same and liquid-crystalline composition containing said derivatives as liquid-crystalline compound and light switching elementsSUMITOMO CHEMICAL CO·Filed 1994·Granted Dec 2, 1997·0 cites·7 claims
- 3832US5741438AOptically active biphenyl derivative, process for preparation thereof, liquid crystal composition containing the same as an effective component, and liquid crystal element using the sameSUMITOMO CHEMICAL CO·Filed 1995·Granted Apr 21, 1998·0 cites·7 claims
- 3932US5534188AAcetylene derivatives, process for producing the same, liquid crystal composition containing the same as an active ingredient, and liquid crystal element using said liquid crystal compositionSUMITOMO CHEMICAL CO·Filed 1993·Granted Jul 9, 1996·0 cites·3 claims
- 4032US5385693AOptically active ester derivatives, preparation process thereof, liquid crystal materials and a light switching elementSUMITOMO CHEMICAL CO·Filed 1993·Granted Jan 31, 1995·0 cites·1 claims
- 4131US5422038AOptically active naphthalene derivative, process for preparation thereof, liquid crystal composition containing the same as effective component, and liquid crystal element using the sameSUMITOMO CHEMICAL CO·Filed 1993·Granted Jun 6, 1995·0 cites·11 claims
- 4230US5326871AOptically active pyrimidine compound, process for producing the same and liquid crystal composition containing the sameSUMITOMO CHEMICAL CO·Filed 1992·Granted Jul 5, 1994·0 cites·10 claims
- 4329US5374376AOptically active aromatic compounds, preparation process therefor, liquid crystal materials and a light switching elementSUMITOMO CHEMICAL CO·Filed 1993·Granted Dec 20, 1994·1 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →