Inventor · disambiguated record
Kenji Niwa
Also filed as: NIWA KENJI
38 granted patents·4 pending applications·570 citations·filing 1985–2025
98Inventor score
Files withHITACHI KOKI KK9MARUZEN PRODUCTS CO LTD7TOYOTA MOTOR CO LTD4MERZEN PRODUCTS INC3NIWA KENJI3
Top patents by PatentIndex Score
42 records- 0194US7275326B2Portable electric cutting apparatusHITACHI KOKI KK·Filed 2005·Granted Oct 2, 2007·18 cites·9 claims
- 0294US4673554AMethod of purifying tantalumSUMITOMO CHEMICAL CO·Filed 1985·Granted Jun 16, 1987·62 cites·11 claims
- 0393US7281332B2Portable cutting toolHITACHI KOKI KK·Filed 2005·Granted Oct 16, 2007·20 cites·12 claims
- 0493US6932402B2Console boxTOYODA GOSEI KK·Filed 2003·Granted Aug 23, 2005·66 cites·21 claims
- 0589US7103979B2Portable electric cutting device with blower mechanismHITACHI KOKI KK·Filed 2003·Granted Sep 12, 2006·39 cites·38 claims
- 0689US7004527B2Console boxTOYODA GOSEI KK·Filed 2005·Granted Feb 28, 2006·31 cites·9 claims
- 0788US7861417B2Portable electric cutting apparatusHITACHI KOKI KK·Filed 2007·Granted Jan 4, 2011·10 cites·19 claims
- 0887USD476555SClip spring memberMARUZEN PRODUCTS CO LTD·Filed 2001·Granted Jul 1, 2003·37 cites·1 claims
- 0984US7866051B2Portable cutting toolHITACHI KOKI KK·Filed 2005·Granted Jan 11, 2011·12 cites·13 claims
- 1084US7434321B2Portable cutting toolHITACHI KOKI KK·Filed 2005·Granted Oct 14, 2008·11 cites·9 claims
- 1182US6076414AShift range control system for automatic transmissionsTOYOTA MOTOR CO LTD·Filed 1997·Granted Jun 20, 2000·35 cites·6 claims
- 1278US7874075B2Portable cutting machineHITACHI KOKI KK·Filed 2008·Granted Jan 25, 2011·7 cites·3 claims
- 1378USD476881SClip spring memberMARUZEN PRODUCTS CO LTD·Filed 2001·Granted Jul 8, 2003·23 cites·1 claims
- 1477US8032274B2Diagnostic system for automatic transmissionTOYOTA MOTOR CO LTD·Filed 2007·Granted Oct 4, 2011·8 cites·12 claims
- 1576US7645187B2Air-conditioning ductTOYODA GOSEI KK·Filed 2006·Granted Jan 12, 2010·5 cites·7 claims
- 1676US7605513B2Electric tool having electric motor with first and second coils having first and second coil bundles of different innermost peripheral lengthHITACHI KOKI KK·Filed 2005·Granted Oct 20, 2009·8 cites·15 claims
- 1771US5597752AMethod for manufacturing LDD type semiconductor device with complete self-alignmentNEC CORP·Filed 1995·Granted Jan 28, 1997·33 cites·13 claims
- 1867US6067492ADisplay system for automatic transmissionsTOYOTA MOTOR CO LTD·Filed 1997·Granted May 23, 2000·35 cites·25 claims
- 1963US2025249497A1Method of manufacturing floor memberFUTABA IND CO LTD·Filed 2025·Application pending·0 cites
- 2057US7343651B2BuckleMERZEN PRODUCTS INC·Filed 2007·Granted Mar 18, 2008·2 cites·4 claims
- 2157US5062963AMethod and apparatus for removing sludge from a spray boothDEVILBISS CANADA LIMITED·Filed 1990·Granted Nov 5, 1991·30 cites·6 claims
- 2254US11353632B2Multi-lens array, light source device, and projectorSEIKO EPSON CORP·Filed 2021·Granted Jun 7, 2022·0 cites·10 claims
- 2353US8926024B2Motorized cutter, motorized cutter with wheels, and cutting methodSHIMA YUKIHIRO·Filed 2010·Granted Jan 6, 2015·1 cites·15 claims
- 2453USD575670SBuckleMERZEN PRODUCTS CO LTD·Filed 2006·Granted Aug 26, 2008·10 cites·1 claims
- 2552US8655576B2Fuel-saving drive recommendation system and fuel-saving drive recommendation methodNIWA KENJI·Filed 2010·Granted Feb 18, 2014·2 cites·7 claims
- 2650US2008196987A1Stopper structure and vibration-proofing structure for vehicleTOYOTA MOTOR CO LTD·Filed 2008·Application pending·0 cites
- 2749USD575671SFastenerMERZEN PRODUCTS INC·Filed 2006·Granted Aug 26, 2008·7 cites·1 claims
- 2849US4741989APositive photoresist aqueous developer solution containing quaternary ammonium hydroxide with aliphatic ketone or cyclic ether alone or with amine as development modifierSUMITOMO CHEMICAL CO·Filed 1986·Granted May 3, 1988·9 cites·8 claims
- 2945USD476554SClip spring memberMARUZEN PRODUCTS CO LTD·Filed 2001·Granted Jul 1, 2003·5 cites·1 claims
- 3045US6218721B1Semiconductor device and method of manufacturing the sameNEC CORP·Filed 1998·Granted Apr 17, 2001·12 cites·14 claims
- 3144US5848472ARotatable circular saw with parallelism adjustment functionHITACHI KOKI KK·Filed 1996·Granted Dec 15, 1998·11 cites·3 claims
- 3243US6271817B1Method of driving liquid crystal display device that reduces afterimagesSEIKO EPSON CORP·Filed 1999·Granted Aug 7, 2001·10 cites·44 claims
- 3341US10807648B2FrameFUTABA IND CO LTD·Filed 2016·Granted Oct 20, 2020·0 cites·18 claims
- 3441USD450771SPaper clipMARUZEN PRODUCTS CO LTD·Filed 2000·Granted Nov 20, 2001·4 cites·1 claims
- 3540USD573655SName plateMERZEN PRODUCTS INC·Filed 2006·Granted Jul 22, 2008·4 cites·1 claims
- 3637US6371426B1Holder of a rod-shaped memberMARUZEN PRODUCTS COMPANY LTD·Filed 2000·Granted Apr 16, 2002·0 cites·4 claims
- 3736USD476553SClip spring memberMARUZEN PRODUCTS CO LTD·Filed 2001·Granted Jul 1, 2003·2 cites·1 claims
- 3834US2013327307A12-cycle engine and engine-powered working machine having the sameNIWA KENJI·Filed 2012·Application pending·0 cites
- 3933USD500210SHolderMARUZEN PRODUCTS CO LTD·Filed 2003·Granted Dec 28, 2004·1 cites·1 claims
- 4033US2015287250A1Vehicle state storage deviceNIWA KENJI·Filed 2013·Application pending·0 cites
- 4130USD448806SPaper clipMARUZEN PRODUCTS CO LTD·Filed 2000·Granted Oct 2, 2001·0 cites·1 claims
- 4225USD464364SPart support toolMARUZEN PRODUCTS COMPANY LTD·Filed 2001·Granted Oct 15, 2002·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →