Inventor · disambiguated record
Keiji Watanabe
Also filed as: WATANABE KEIJI
118 granted patents·32 pending applications·1,568 citations·filing 1977–2024
99Inventor score
Top patents by PatentIndex Score
150 records- 0196US6329125B2Chemically amplified resist compositions and process for the formation of resist patternsFUJITSU LTD·Filed 2000·Granted Dec 11, 2001·154 cites·1 claims
- 0296US6013416AChemically amplified resist compositions and process for the formation of resist patternsFUJITSU LTD·Filed 1996·Granted Jan 11, 2000·164 cites·15 claims
- 0396US5968713AChemically amplified resist compositions and process for the formation of resist patternsFUJITSU LTD·Filed 1997·Granted Oct 19, 1999·165 cites·20 claims
- 0493US9349895B2Encapsulating material for solar cell and solar cell moduleIKENAGA SHIGENOBU·Filed 2011·Granted May 24, 2016·14 cites·14 claims
- 0593US8772625B2Encapsulating material for solar cell and solar cell moduleIKENAGA SHIGENOBU·Filed 2011·Granted Jul 8, 2014·18 cites·15 claims
- 0693US8449783B2Method of manufacturing liquid ejection head substrateWATANABE KEIJI·Filed 2012·Granted May 28, 2013·10 cites·7 claims
- 0792US6200725B1Chemically amplified resist compositions and process for the formation of resist patternsFUJITSU LTD·Filed 1997·Granted Mar 13, 2001·105 cites·8 claims
- 0891US6342562B1Silicon-containing polymer, process for its production, resist composition employing it, pattern-forming method and electronic device fabrication methodFUJITSU LTD·Filed 2000·Granted Jan 29, 2002·41 cites·9 claims
- 0989US4797593ACathode for electron tubeMITSUBISHI ELECTRIC CORP·Filed 1986·Granted Jan 10, 1989·47 cites·30 claims
- 1088US8866157B2Semiconductor device and method of fabricating the semiconductor deviceFUJITSU LTD·Filed 2013·Granted Oct 21, 2014·9 cites·20 claims
- 1187US8148049B2Ink jet recording head and manufacturing method of the sameMURAYAMA HIROYUKI·Filed 2007·Granted Apr 3, 2012·10 cites·8 claims
- 1287US4319158AElectrode for discharge lampMITSUBISHI ELECTRIC CORP·Filed 1979·Granted Mar 9, 1982·22 cites·2 claims
- 1385US9991415B2Display device and method of producing display deviceSHARP KK·Filed 2015·Granted Jun 5, 2018·5 cites·9 claims
- 1485US9040811B2Solar-cell sealant and solar-cell module using sameIKENAGA SHIGENOBU·Filed 2011·Granted May 26, 2015·4 cites·15 claims
- 1584US5250242AMethod of producing ceramic sintered body having dense ceramic membraneNIPPON KOKAN KK·Filed 1990·Granted Oct 5, 1993·41 cites·12 claims
- 1683US8047632B2Ink jet recording headCANON KK·Filed 2009·Granted Nov 1, 2011·7 cites·9 claims
- 1783US7488569B2Negative resist composition, a method for forming a resist pattern thereof, and a method for fabricating a semiconductor deviceFUJITSU LTD·Filed 2006·Granted Feb 10, 2009·5 cites·18 claims
- 1883US4924137ACathode for electron tubeMITSUBISHI ELECTRIC CORP·Filed 1989·Granted May 8, 1990·30 cites·9 claims
- 1981US7335701B2Magnetic disk drive having a surface coating on a magnetic diskFUJITSU LTD·Filed 2006·Granted Feb 26, 2008·3 cites·5 claims
- 2081US4136227AElectrode of discharge lampMITSUBISHI ELECTRIC CORP·Filed 1977·Granted Jan 23, 1979·17 cites·4 claims
- 2180US10990085B2Machine-tool-state determination system and machine-tool-state determination methodHITACHI LTD·Filed 2019·Granted Apr 27, 2021·2 cites·6 claims
- 2279US11181441B2Sensor systemHITACHI LTD·Filed 2018·Granted Nov 23, 2021·1 cites·6 claims
- 2379US10894409B2Method of manufacturing a liquid ejection headCANON KK·Filed 2018·Granted Jan 19, 2021·1 cites·14 claims
- 2479US7923080B2Liquid crystal display and manufacturing method of sameFUJITSU LTD·Filed 2006·Granted Apr 12, 2011·6 cites·9 claims
- 2579US6541077B1Silicon-containing polymer, process for its production, resist composition employing it, pattern-forming method and electronic device fabrication methodFUJITSU LTD·Filed 2001·Granted Apr 1, 2003·16 cites·15 claims
- 2679US6303727B1Linear triene compound and copolymerMITSUI CHEMICALS INC·Filed 1999·Granted Oct 16, 2001·21 cites·9 claims
- 2778US9608083B2Semiconductor deviceFUJITSU LTD·Filed 2015·Granted Mar 28, 2017·2 cites·10 claims
- 2878US8152276B2Liquid jet head, method for manufacturing liquid jet head, and method for forming structure for liquid jet headMURAYAMA HIROYUKI·Filed 2009·Granted Apr 10, 2012·5 cites·9 claims
- 2978US5906481APiezoelectric fluid pumpFUJITSU LTD·Filed 1996·Granted May 25, 1999·41 cites·18 claims
- 3077US8037603B2Ink jet head and producing method thereforCANON KK·Filed 2007·Granted Oct 18, 2011·5 cites·10 claims
- 3177US5021213AMethod of casting powderNIPPON KOKAN KK·Filed 1990·Granted Jun 4, 1991·27 cites·13 claims
- 3276US6063871AMetallocene polyethylene blend compositionsMITSUI PETROCHEMICAL IND·Filed 1996·Granted May 16, 2000·40 cites·2 claims
- 3375US9595630B2Solar cell sealing material, method for manufacturing solar cell sealing material, and solar cell moduleIKENAGA SHIGENOBU·Filed 2012·Granted Mar 14, 2017·1 cites·15 claims
- 3475US9324808B2Semiconductor device, power-supply unit, amplifier and method of manufacturing semiconductor deviceFUJITSU LTD·Filed 2013·Granted Apr 26, 2016·3 cites·4 claims
- 3575US7619854B2Product including filmed screwFUJITSU LTD·Filed 2006·Granted Nov 17, 2009·2 cites·10 claims
- 3675US7534750B2Composition, magnetic recording medium, head slider, and magnetic recording deviceFUJITSU LTD·Filed 2005·Granted May 19, 2009·3 cites·9 claims
- 3774US5910392AResist composition, a process for forming a resist pattern and a process for manufacturing a semiconductor deviceFUJITSU LTD·Filed 1997·Granted Jun 8, 1999·46 cites·17 claims
- 3873US9610773B2Method for producing liquid-ejection-head substrate and liquid-ejection-head substrate produced by the sameCANON KK·Filed 2016·Granted Apr 4, 2017·1 cites·13 claims
- 3973US6670309B2Method and apparatus for preparing fluorine-based solventFUJITSU LTD·Filed 2001·Granted Dec 30, 2003·13 cites·9 claims
- 4073US6052261AMethod for manufacturing magnetoresistance headFUJITSU LTD·Filed 1996·Granted Apr 18, 2000·23 cites·28 claims
- 4173US4418300AMetal vapor discharge lamp with heat insulator and starting aidMITSUBISHI ELECTRIC CORP·Filed 1980·Granted Nov 29, 1983·16 cites·7 claims
- 4272US7081277B1Magnetic disk drive having a surface coating on a magnetic diskFUJITSU LTD·Filed 2000·Granted Jul 25, 2006·7 cites·19 claims
- 4370US9714262B2Composition for forming passivation layer, semiconductor substrate having passivation layer, method of producing semiconductor substrate having passivation layer, photovoltaic cell element, method of producing photovoltaic cell element and photovoltaic cellHITACHI CHEMICAL CO LTD·Filed 2013·Granted Jul 25, 2017·1 cites·8 claims
- 4470US7244368B2Manufacturing process of a magnetic head, magnetic head, pattern formation methodFUJITSU LTD·Filed 2003·Granted Jul 17, 2007·8 cites·14 claims
- 4570US5240813APolysilphenylenesiloxane, production process thereof, and resist material and semiconductor device formed thereofFUJITSU LTD·Filed 1990·Granted Aug 31, 1993·27 cites·5 claims
- 4669US5560870AComposition for forming an electrically conductive layer to be used in patterningFUJITSU LTD·Filed 1995·Granted Oct 1, 1996·19 cites·7 claims
- 4768US8487384B2Semiconductor device, power-supply unit, amplifier and method of manufacturing semiconductor deviceNAKAMURA NORIKAZU·Filed 2012·Granted Jul 16, 2013·2 cites·6 claims
- 4867US11400725B2Liquid ejection apparatusCANON KK·Filed 2021·Granted Aug 2, 2022·0 cites·14 claims
- 4967US7439010B2Alkali-soluble siloxane polymer, positive type resist composition, resist pattern, process for forming the same, electronic device and process for manufacturing the sameFUJITSU LTD·Filed 2005·Granted Oct 21, 2008·2 cites·15 claims
- 5067US6744896B2Electret microphoneCITIZEN ELECTRONICS·Filed 2002·Granted Jun 1, 2004·12 cites·4 claims
Showing the top 50 of 150 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →