Inventor · disambiguated record
Masaya Kitayama
Also filed as: KITAYAMA MASAYA
37 granted patents·6 pending applications·161 citations·filing 1996–2007
96Inventor score
Files withUENO SEIYAKU OYO KENKYUJO KK35UENO RYUZO4LEF TECHNOLOGY INC1UENO FINE CHEMICAL IND1UENO SEIYAKO OYO KENKYUJO KK1
Top patents by PatentIndex Score
43 records- 0187US6984712B2Liquid-crystal polyester resinUENO SEIYAKU OYO KENKYUJO KK·Filed 2002·Granted Jan 10, 2006·26 cites·5 claims
- 0285US5973126AAzo compounds and process for producing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 1997·Granted Oct 26, 1999·22 cites·9 claims
- 0383US7179401B2Thermotropic liquid-crystalline polymerUENO SEIYAKU OYO KENKYUJO KK·Filed 2002·Granted Feb 20, 2007·21 cites·19 claims
- 0471US7608371B2Method of modifying liquid crystal polymersLEF TECHNOLOGY INC·Filed 2007·Granted Oct 27, 2009·4 cites·18 claims
- 0570US6409812B1AZO compounds and process for producing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 1999·Granted Jun 25, 2002·20 cites·15 claims
- 0669US6664341B2Liquid-crystal polyester resin compositionUENO SEIYAKU OYO KENKYUJO KK·Filed 2001·Granted Dec 16, 2003·8 cites·6 claims
- 0768US6005085ACondensed azo compounds and process for preparing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 1998·Granted Dec 21, 1999·13 cites·12 claims
- 0867US7355071B2Method for preparing 2,6-naphthalene dicarboxylic acidUENO SEIYAKU OYO KENKYUJO KK·Filed 2005·Granted Apr 8, 2008·1 cites·17 claims
- 0967US6849742B2Binaphthol derivative and process for producing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 2002·Granted Feb 1, 2005·3 cites·13 claims
- 1064US5786523ANaphthol derivatives and process for producing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 1997·Granted Jul 28, 1998·7 cites·4 claims
- 1160US6802989B1Liquid crystal polyester resinUENO SEIYAKU OYO KENKYUJO KK·Filed 2001·Granted Oct 12, 2004·4 cites·6 claims
- 1260US5965715ABisazo compounds and process for the preparation thereofUENO SEIYAKU OYO KENKYUJO KK·Filed 1997·Granted Oct 12, 1999·7 cites·9 claims
- 1359US6451988B1Naphthol derivativesUENO SEIYAKU OYO KENKYUJO KK·Filed 2001·Granted Sep 17, 2002·1 cites·7 claims
- 1459US6451109B1Columnar crystals of 6-hydroxy-2-naphthoic acid and process for manufacturing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 2000·Granted Sep 17, 2002·2 cites·9 claims
- 1557US6388045B1Liquid-crystalline polymerUENO SEIYAKU OYO KENKYUJO KK·Filed 2000·Granted May 14, 2002·4 cites·16 claims
- 1653US6673962B2Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and process for producing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 2002·Granted Jan 6, 2004·1 cites·11 claims
- 1751US6284924B1CompoundsUENO SEIYAKU OYO KENKUJO KK·Filed 2000·Granted Sep 4, 2001·1 cites·1 claims
- 1850US7304182B2Crystalline parahydroxybenzoic acid anhydride and process for preparing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 2004·Granted Dec 4, 2007·0 cites·10 claims
- 1949US5770766AMethod for separating and purifying hydroxynaphtalenecarboxylic acidsUENO SEIYAKU OYO KENKYUJO KK·Filed 1996·Granted Jun 23, 1998·5 cites·3 claims
- 2048US7238769B2Method for joining liquid-crystalline polyester resin composition parts and jointed article made of liquid-crystalline polyester resin compositionUENO SEIYAKU OYO KENKYUJO KK·Filed 2005·Granted Jul 3, 2007·0 cites·22 claims
- 2148US6020470AWater-soluble azo compounds and process for producing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 1998·Granted Feb 1, 2000·4 cites·3 claims
- 2246US2007010647A1Liquid-crystal polyester resinUENO RYUZO·Filed 2004·Application pending·0 cites
- 2345US6639092B2Metal salt of binaphthol derivative and method for preparing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 2002·Granted Oct 28, 2003·0 cites·8 claims
- 2445US6084101ANaphtol derivative and process for producing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 1997·Granted Jul 4, 2000·2 cites·3 claims
- 2543US7449608B2Naphthol derivative and charge control agent comprising the sameUENO FINE CHEMICAL IND·Filed 2002·Granted Nov 11, 2008·2 cites·8 claims
- 2641US6403827B1Crystal of 2-hydroxynaphthalene-3-carboxylic acid and process for the preparation thereofUENO SEIYAKU OYO KENKYUJO KK·Filed 2000·Granted Jun 11, 2002·0 cites·7 claims
- 2741US2007043235A1Process for preparing 3-nitro-4-alkoxybenzoic acidUENO SEIYAKU OYO KENKYUJO KK·Filed 2004·Application pending·0 cites
- 2840US5847233ANaphthol derivatives and process for producing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 1997·Granted Dec 8, 1998·1 cites·1 claims
- 2939US2006205952A1Aminocarbonyl naphthol derivative, cyanonaphthol derivative, and method for producing themUENO RYUZO·Filed 2004·Application pending·0 cites
- 3038US7030261B2Method for preparing 2-hydroxy-6-ureidocarbonyl naphthalene derivativeUENO SEIYAKU OYO KENKYUJO KK·Filed 2005·Granted Apr 18, 2006·0 cites·4 claims
- 3138US2005043564A1Process for dehydrating hydrous sodium beta-naphtholateUENO SEIYAKU OYO KENKYUJO KK·Filed 2004·Application pending·0 cites
- 3237US2006183939A1Process for production of hydroxybenzoic acidsUENO RYUZO·Filed 2004·Application pending·0 cites
- 3336US6891072B2Process for production of dimers or aromatic monohydroxyl compoundsUENO SEIYAKU OYO KENKYUJO KK·Filed 2002·Granted May 10, 2005·0 cites·2 claims
- 3435US6562998B1Granules of 2-hydroxynaphthalene-3-carboxylic acid and method for preparing the sameUENO SEIYAKO OYO KENKYUJO KK·Filed 2000·Granted May 13, 2003·0 cites·9 claims
- 3534US6252104B1Naphthol derivatives and process for producing the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 1996·Granted Jun 26, 2001·0 cites·4 claims
- 3634US6239263B1Water-soluble azo compounds and process for the preparation thereofUENO SEIYAKU OYO KENKYUJO KK·Filed 1998·Granted May 29, 2001·1 cites·4 claims
- 3733US7169523B2Charge controllersUENO SEIYAKU OYO KENKYUJO KK·Filed 2003·Granted Jan 30, 2007·0 cites·4 claims
- 3833US6133475AProcess for producing 2-hydroxynaphthalene-3,6-dicarboxylic acidUENO SEIYAKU OYO KENKYUJO KK·Filed 1998·Granted Oct 17, 2000·1 cites·19 claims
- 3933US2006052632A1Process for production of hydroxygbenzoic acidsUENO RYUZO·Filed 2003·Application pending·0 cites
- 4032US7074536B2Alkylenebisnaphtol derivative and charge control agent which consists of the sameUENO SEIYAKU OYO KENKYUJO KK·Filed 2002·Granted Jul 11, 2006·0 cites·6 claims
- 4127US6548703B1Toning agentUENO SEIYAKU OYO KENKYUJO KK·Filed 1999·Granted Apr 15, 2003·0 cites·6 claims
- 4227US6194608B1Process for separating and purifying alkali metal salts of hydroxynaphthalenecarboxylic acidsUENO SEIYAKU OYO KENKYUJO KK·Filed 1998·Granted Feb 27, 2001·0 cites·5 claims
- 4326US6072042ABis(aminocarbonylnaphthol) derivativeUENO SEIYAKU OYO KENKYUJO KK·Filed 1997·Granted Jun 6, 2000·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →