Inventor · disambiguated record
Tatsuyoshi Maruyama
Also filed as: MARUYAMA TATSUYOSHI
23 granted patents·3 pending applications·179 citations·filing 1997–2019
95Inventor score
Files withHITACHI AUTOMOTIVE SYSTEMS STEERING LTD9HITACHI AUTOMOTIVE SYSTEMS LTD7UNISIA JECS CORP6UNISIA JKC STEERING SYS CO LTD2HITACHI LTD1
Top patents by PatentIndex Score
26 records- 0187US9004221B2Torque sensor and power steering system using the torque sensorHITACHI AUTOMOTIVE SYSTEMS STEERING LTD·Filed 2013·Granted Apr 14, 2015·13 cites·19 claims
- 0283US9694847B2Torque detection structure for power steering device, and power steering device using sameHITACHI AUTOMOTIVE SYSTEMS STEERING LTD·Filed 2014·Granted Jul 4, 2017·8 cites·18 claims
- 0383US9314835B2Power steering apparatus and method of manufacturing power steering apparatusHITACHI AUTOMOTIVE SYSTEMS STEERING LTD·Filed 2014·Granted Apr 19, 2016·7 cites·18 claims
- 0482US9212892B2Steering angle sensorHITACHI AUTOMOTIVE SYSTEMS STEERING LTD·Filed 2013·Granted Dec 15, 2015·8 cites·19 claims
- 0577US9086269B2Steering angle sensor and electric power steering device employing the sameHITACHI AUTOMOTIVE SYSTEMS STEERING LTD·Filed 2013·Granted Jul 21, 2015·5 cites·20 claims
- 0673US9505431B2Rotation detection device and power steering deviceHITACHI AUTOMOTIVE SYSTEMS STEERING LTD·Filed 2014·Granted Nov 29, 2016·6 cites·20 claims
- 0772US9302700B2Torque sensor and power steering system using the torque sensorHITACHI AUTOMOTIVE SYSTEMS STEERING LTD·Filed 2013·Granted Apr 5, 2016·6 cites·20 claims
- 0871US9448129B2Torque sensor unitHITACHI AUTOMOTIVE SYSTEMS STEERING LTD·Filed 2013·Granted Sep 20, 2016·4 cites·16 claims
- 0971US8579071B2Power steering system and method for assembling the power steering systemYOSHIDA OSAMU·Filed 2012·Granted Nov 12, 2013·4 cites·20 claims
- 1068US11807312B2Power steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Nov 7, 2023·2 cites·14 claims
- 1166US6041883AFlow controlling apparatus for power steering systemsUNISIA JECS CORP·Filed 1997·Granted Mar 28, 2000·30 cites·13 claims
- 1266US5921342APower assisted steering apparatus for automotive vehicleUNISIA JECS CORP·Filed 1997·Granted Jul 13, 1999·19 cites·12 claims
- 1364US7469912B2Bracket of steering rack housingHITACHI LTD·Filed 2004·Granted Dec 30, 2008·11 cites·18 claims
- 1463US5950757APower steering devicesUNISIA JECS CORP·Filed 1997·Granted Sep 14, 1999·21 cites·9 claims
- 1545US11383758B2Power steering apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2018·Granted Jul 12, 2022·0 cites·7 claims
- 1645US7320480B2Structure for fixing steering-gear housingUNISIA JKC STEERING SYS CO LTD·Filed 2004·Granted Jan 22, 2008·5 cites·17 claims
- 1744US2021220901A1Method for manufacturing steering shaft of steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2019·Application pending·0 cites
- 1842US5975232APower assisted steering apparatus for automotive vehicleUNISIA JECS CORP·Filed 1997·Granted Nov 2, 1999·11 cites·6 claims
- 1942US2019382047A1Power steering apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2017·Application pending·0 cites
- 2041US7036624B2Power steering systemUNISIA JKC STEERING SYS CO LTD·Filed 2004·Granted May 2, 2006·1 cites·13 claims
- 2140US10814416B2Method for producing threaded shaft for power steering device, and power steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Oct 27, 2020·0 cites·6 claims
- 2240US9919729B2Power steering systemHITACHI AUTOMOTIVE SYSTEMS STEERING LTD·Filed 2014·Granted Mar 20, 2018·0 cites·14 claims
- 2339US6105711APower steering systemUNISIA JECS CORP·Filed 1998·Granted Aug 22, 2000·10 cites·14 claims
- 2436US10464593B2Power steering apparatus and method of manufacturing power steering apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Granted Nov 5, 2019·0 cites·11 claims
- 2536US6035958APower assist apparatus for steering systemUNISIA JECS CORP·Filed 1997·Granted Mar 14, 2000·8 cites·10 claims
- 2634US2017008555A1Power steering device and method for manufacturing ball screw for power steering deviceHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →