Inventor · disambiguated record
Kenji Fujii
Also filed as: FUJII KENJI
151 granted patents·56 pending applications·852 citations·filing 1978–2025
99Inventor score
Files withCANON KK47SHONAN GOSEI JUSHI SEISAKUSHO34ROHM CO LTD25OMRON HEALTHCARE CO LTD24KAMIYAMA TAKAO7
Top patents by PatentIndex Score
207 records- 0197US7300596B2Method of manufacturing liquid discharge headCANON KK·Filed 2006·Granted Nov 27, 2007·39 cites·9 claims
- 0296US7287847B2Method of manufacturing ink jet recording head, ink jet recording head, and ink jet cartridgeCANON KK·Filed 2004·Granted Oct 30, 2007·59 cites·4 claims
- 0395US9780069B2Semiconductor deviceROHM CO LTD·Filed 2015·Granted Oct 3, 2017·13 cites·20 claims
- 0495US7523553B2Method of manufacturing ink jet recording headCANON KK·Filed 2007·Granted Apr 28, 2009·20 cites·5 claims
- 0593US7901064B2Ink jet recording head with ink filter formed of a plurality of stacked filmsCANON KK·Filed 2007·Granted Mar 8, 2011·18 cites·5 claims
- 0693US7398797B2Pipe lining methodSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2007·Granted Jul 15, 2008·18 cites·14 claims
- 0792US10163850B2Semiconductor deviceROHM CO LTD·Filed 2017·Granted Dec 25, 2018·7 cites·11 claims
- 0892US8429820B2Method of manufacturing liquid discharge headKOYAMA SHUJI·Filed 2011·Granted Apr 30, 2013·11 cites·13 claims
- 0991US10158268B2Brushless DC motor and ventilation device having same mounted thereinPANASONIC IP MAN CO LTD·Filed 2014·Granted Dec 18, 2018·10 cites·6 claims
- 1091US7862158B2Method of manufacturing ink jet recording head, ink jet cartridgeCANON KK·Filed 2007·Granted Jan 4, 2011·10 cites·4 claims
- 1191US7475966B2Liquid discharge recording head and method for manufacturing sameCANON KK·Filed 2005·Granted Jan 13, 2009·14 cites·7 claims
- 1291US2025357405A1Semiconductor deviceROHM CO LTD·Filed 2025·Application pending·0 cites
- 1388US9873255B2Liquid ejection head and method of manufacturing the sameCANON KK·Filed 2016·Granted Jan 23, 2018·3 cites·2 claims
- 1488US7481246B2Lateral pipe lining material and lateral pipe lining methodSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2007·Granted Jan 27, 2009·19 cites·12 claims
- 1587US9789690B2Method for manufacturing liquid ejection headCANON KK·Filed 2016·Granted Oct 17, 2017·3 cites·15 claims
- 1687US8148049B2Ink jet recording head and manufacturing method of the sameMURAYAMA HIROYUKI·Filed 2007·Granted Apr 3, 2012·10 cites·8 claims
- 1786US8240339B2Existing pipe rehabilitation methodKAMIYAMA TAKAO·Filed 2009·Granted Aug 14, 2012·16 cites·8 claims
- 1886US7708033B2Lining material and pipeline lining methodSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2007·Granted May 4, 2010·15 cites·20 claims
- 1986US7165578B2Method for laying a rehabilitating pipeSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2005·Granted Jan 23, 2007·26 cites·20 claims
- 2085US9919526B2Method for manufacturing liquid discharge headCANON KK·Filed 2014·Granted Mar 20, 2018·3 cites·20 claims
- 2183US12400988B2Semiconductor device with semiconductor element and plural first and second leadsROHM CO LTD·Filed 2023·Granted Aug 26, 2025·0 cites·14 claims
- 2283US9809027B2Method of manufacturing structure and method of manufacturing liquid ejection headCANON KK·Filed 2015·Granted Nov 7, 2017·2 cites·9 claims
- 2383US8047632B2Ink jet recording headCANON KK·Filed 2009·Granted Nov 1, 2011·7 cites·9 claims
- 2483US7891784B2Liquid ejection head and method for manufacturing liquid ejection headCANON KK·Filed 2008·Granted Feb 22, 2011·6 cites·11 claims
- 2583US7017613B2Segment for rehabilitating pipe assemblySHONAN GOSEI JUSHI SEISAKUSHO·Filed 2005·Granted Mar 28, 2006·14 cites·10 claims
- 2682US10625506B2Method for manufacturing liquid discharge headCANON KK·Filed 2018·Granted Apr 21, 2020·1 cites·20 claims
- 2782US7886121B2Storage systemHITACHI LTD·Filed 2006·Granted Feb 8, 2011·11 cites·15 claims
- 2882US7819435B2Rehabilitating pipe for repairing existing pipe and method for repairing existing pipeSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2005·Granted Oct 26, 2010·13 cites·21 claims
- 2982US7028716B2Method for rehabilitating an existing pipeSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2005·Granted Apr 18, 2006·13 cites·15 claims
- 3081US8715442B2Lateral pipe lining material and lateral pipe lining methodKAMIYAMA TAKAO·Filed 2011·Granted May 6, 2014·6 cites·20 claims
- 3181US8128204B2Liquid ejection head and method for manufacturing liquid ejection headOZAKI NORIYASU·Filed 2011·Granted Mar 6, 2012·4 cites·3 claims
- 3281US7503349B2Lateral pipe lining material and lateral pipe lining method using sameSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2007·Granted Mar 17, 2009·11 cites·18 claims
- 3380US8360108B2Method for rehabilitating existing pipes, and rehabilitation pipe segment used in the rehabilitating methodSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2009·Granted Jan 29, 2013·10 cites·18 claims
- 3480US7955026B2Method for rehabilitating a manholeSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2009·Granted Jun 7, 2011·9 cites·11 claims
- 3580US7753502B2Method of manufacturing ink jet recording head, ink jet recording head, and ink jet cartridgeCANON KK·Filed 2007·Granted Jul 13, 2010·4 cites·8 claims
- 3680US7506895B2Segment for a rehabilitating pipeSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2005·Granted Mar 24, 2009·11 cites·20 claims
- 3780US4297133AMethod and means for adding treating agent for molten metalYOSHIDA IRON WORKS CO LTD·Filed 1980·Granted Oct 27, 1981·12 cites·13 claims
- 3879US7930824B2Method of manufacturing ink jet recording headCANON KK·Filed 2009·Granted Apr 26, 2011·4 cites·7 claims
- 3979US7156124B2Segment for rehabilitating an existing pipe and a rehabilitating pipe assembled using segmentsSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2005·Granted Jan 2, 2007·10 cites·20 claims
- 4079US7121305B2Method for lining an existing pipe and collar for protecting a lining materialSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2005·Granted Oct 17, 2006·10 cites·18 claims
- 4178US9090067B2Method for manufacturing liquid discharge headCANON KK·Filed 2014·Granted Jul 28, 2015·2 cites·9 claims
- 4277US9355988B2Semiconductor deviceROHM CO LTD·Filed 2015·Granted May 31, 2016·2 cites·30 claims
- 4377US9162459B2Liquid ejection headCANON KK·Filed 2014·Granted Oct 20, 2015·2 cites·16 claims
- 4477US8065523B2External storage apparatus and method of preventing information leakageFUJII KENJI·Filed 2008·Granted Nov 22, 2011·9 cites·20 claims
- 4577US8037603B2Ink jet head and producing method thereforCANON KK·Filed 2007·Granted Oct 18, 2011·5 cites·10 claims
- 4677US7713374B2Pipeline lining methodSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2007·Granted May 11, 2010·4 cites·17 claims
- 4777US7322382B2Segment for a rehabilitating pipeSHONAN GOSEI JUSHI SEISAKUSHO·Filed 2005·Granted Jan 29, 2008·9 cites·11 claims
- 4876US11257777B2Semiconductor deviceROHM CO LTD·Filed 2019·Granted Feb 22, 2022·1 cites·16 claims
- 4976US8342659B2Liquid discharge head and method for manufacturing the sameCANON KK·Filed 2010·Granted Jan 1, 2013·4 cites·13 claims
- 5076US7406956B2Device for enhancing combustion efficiencyFUJII KENJI·Filed 2005·Granted Aug 5, 2008·8 cites·2 claims
Showing the top 50 of 207 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →