Inventor · disambiguated record
Kazutaka Iwata
Also filed as: IWATA KAZUTAKA
34 granted patents·18 pending applications·3,252 citations·filing 2006–2021
98Inventor score
Top patents by PatentIndex Score
52 records- 0198US10562160B2Impact tool and method of controlling impact toolHITACHI KOKI KK·Filed 2013·Granted Feb 18, 2020·611 cites·19 claims
- 0298US9314908B2Impact toolTANIMOTO HIDEYUKI·Filed 2010·Granted Apr 19, 2016·1.1k cites·5 claims
- 0398US8931576B2Power tool for performing soft-start control appropriated for motor loadIWATA KAZUTAKA·Filed 2011·Granted Jan 13, 2015·1k cites·14 claims
- 0498US8074731B2Impact toolIWATA KAZUTAKA·Filed 2008·Granted Dec 13, 2011·59 cites·4 claims
- 0598US7330006B2Power toolHITACHI KOKI KK·Filed 2006·Granted Feb 12, 2008·56 cites·11 claims
- 0697US8360166B2Rotary striking toolHITACHI KOKI KK·Filed 2010·Granted Jan 29, 2013·46 cites·10 claims
- 0797US8253285B2Power toolYOSHIDA KENICHIROU·Filed 2008·Granted Aug 28, 2012·43 cites·9 claims
- 0896US9793847B2Electric power toolHITACHI KOKI KK·Filed 2016·Granted Oct 17, 2017·7 cites·2 claims
- 0996US9391491B2Power toolHITACHI KOKI KK·Filed 2013·Granted Jul 12, 2016·15 cites·7 claims
- 1096US8541913B2Power toolYOSHIDA KENICHIROU·Filed 2012·Granted Sep 24, 2013·19 cites·3 claims
- 1196US8084901B2Power toolOOMORI KATSUHIRO·Filed 2008·Granted Dec 27, 2011·39 cites·12 claims
- 1295US9314855B2Electric boring toolOOKUBO TAKAHIRO·Filed 2010·Granted Apr 19, 2016·50 cites·8 claims
- 1395US9114519B2Electric rotating toolIWATA KAZUTAKA·Filed 2009·Granted Aug 25, 2015·41 cites·19 claims
- 1493US9616558B2Impact toolNISHIKAWA TOMOMASA·Filed 2010·Granted Apr 11, 2017·19 cites·7 claims
- 1591US10033323B2Electric power toolIWATA KAZUTAKA·Filed 2012·Granted Jul 24, 2018·7 cites·18 claims
- 1689US10505473B2Electric toolHITACHI KOKI KK·Filed 2015·Granted Dec 10, 2019·4 cites·11 claims
- 1789US10183384B2Power toolHITACHI KOKI KK·Filed 2014·Granted Jan 22, 2019·11 cites·8 claims
- 1889US9555537B2Portable toolHITACHI KOKI KK·Filed 2013·Granted Jan 31, 2017·12 cites·15 claims
- 1989US8607892B2Rotary striking toolIIMURA YOSHIO·Filed 2010·Granted Dec 17, 2013·14 cites·7 claims
- 2088US10525579B2Electric toolHITACHI KOKI KK·Filed 2015·Granted Jan 7, 2020·5 cites·11 claims
- 2188US9048699B2Power toolOOMORI KATSUHIRO·Filed 2009·Granted Jun 2, 2015·27 cites·11 claims
- 2288US8925645B2Oil pulse toolHARADA TETSUHIRO·Filed 2009·Granted Jan 6, 2015·23 cites·5 claims
- 2382US11070160B2Electric power toolKOKI HOLDINGS CO LTD·Filed 2018·Granted Jul 20, 2021·1 cites·17 claims
- 2482US8640789B2Oil pulse toolHARADA TETSUHIRO·Filed 2009·Granted Feb 4, 2014·18 cites·7 claims
- 2581US10171011B2Electric toolHITACHI KOKI KK·Filed 2014·Granted Jan 1, 2019·4 cites·11 claims
- 2680US8067913B2Power toolWATABE SHINJI·Filed 2008·Granted Nov 29, 2011·25 cites·10 claims
- 2778US11770088B2Electric power toolKOKI HOLDINGS CO LTD·Filed 2021·Granted Sep 26, 2023·0 cites·8 claims
- 2877US11675014B2Power toolKOKI HOLDINGS CO LTD·Filed 2021·Granted Jun 13, 2023·0 cites·11 claims
- 2976US11099241B2Power toolHITACHI KOKI KK·Filed 2014·Granted Aug 24, 2021·1 cites·11 claims
- 3071US9768713B2Electric toolHITACHI KOKI KK·Filed 2014·Granted Sep 19, 2017·2 cites·4 claims
- 3169US9769990B2Power toolHITACHI KOKI KK·Filed 2013·Granted Sep 26, 2017·1 cites·15 claims
- 3268US11440166B2Impact tool and method of controlling impact toolKOKI HOLDINGS CO LTD·Filed 2020·Granted Sep 13, 2022·0 cites·16 claims
- 3352US11511387B2Electric toolKOKI HOLDINGS CO LTD·Filed 2017·Granted Nov 29, 2022·0 cites·12 claims
- 3451US10411620B2Power toolHITACHI KOKI KK·Filed 2016·Granted Sep 10, 2019·0 cites·11 claims
- 3547US2015047866A1Electric tool and fastening method using the sameHITACHI KOKI KK·Filed 2013·Application pending·0 cites
- 3645US2013008679A1Power ToolHITACHI KOKI KK·Filed 2011·Application pending·0 cites
- 3745US2013025892A1Power ToolHITACHI KOKI KK·Filed 2011·Application pending·0 cites
- 3844US2012318550A1Impact toolTANIMOTO HIDEYUKI·Filed 2011·Application pending·0 cites
- 3944US2012191250A1Power toolIWATA KAZUTAKA·Filed 2010·Application pending·0 cites
- 4043US2013333910A1Impact toolTANIMOTO HIDEYUKI·Filed 2010·Application pending·0 cites
- 4143US2013186661A1Power ToolOKUBO TAKAHIRO·Filed 2011·Application pending·0 cites
- 4243US2013028674A1Drilling DeviceHITACHI KOKI KK·Filed 2011·Application pending·0 cites
- 4343US2013189041A1Power ToolABE SATOSHI·Filed 2011·Application pending·0 cites
- 4443US2012073846A1Power toolHIRAI SHOUICHI·Filed 2011·Application pending·0 cites
- 4543US2016111984A1Power toolHITACHI KOKI KK·Filed 2014·Application pending·0 cites
- 4643US2014151080A1Electric power toolABE SATOSHI·Filed 2012·Application pending·0 cites
- 4742US2015222212A1Electric power toolHITACHI KOKI KK·Filed 2013·Application pending·0 cites
- 4841US2015042246A1Electric tool and fastening method using the sameHITACHI KOKI KK·Filed 2013·Application pending·0 cites
- 4940US2017012572A1Work toolHITACHI KOKI KK·Filed 2015·Application pending·0 cites
- 5038US2015303842A1Impact toolHITACHI KOKI KK·Filed 2013·Application pending·0 cites
Showing the top 50 of 52 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →