Inventor · disambiguated record
Ryouichi Takahata
Also filed as: TAKAHATA RYOUICHI
6 granted patents·3 pending applications·7 citations·filing 2011–2022
68Inventor score
Files withJTEKT CORP4HITACHI ASTEMO LTD1HITACHI LTD1JOHNSON CONTROLS-HITACHI AIR CONDITIONING TECH (HONG KONG) LTD1PROTERIAL LTD1
Top patents by PatentIndex Score
9 records- 0183US9748887B2Permanent magnet synchronous motor and winding-switching motor driving device, and refrigeration air conditioner and electric vehicle using sameHITACHI LTD·Filed 2015·Granted Aug 29, 2017·7 cites·12 claims
- 0258US12489328B2Rotary electric machine and electric drive systemHITACHI ASTEMO LTD·Filed 2022·Granted Dec 2, 2025·0 cites·8 claims
- 0356US2025167602A1Rotary electric machinePROTERIAL LTD·Filed 2022·Application pending·0 cites
- 0451US8833334B2Oil pump apparatusWATANABE KENTARO·Filed 2011·Granted Sep 16, 2014·0 cites·7 claims
- 0550US10712054B2Thermoacoustic deviceJTEKT CORP·Filed 2017·Granted Jul 14, 2020·0 cites·11 claims
- 0647US10808968B2Thermoacoustic cooling deviceJTEKT CORP·Filed 2017·Granted Oct 20, 2020·0 cites·6 claims
- 0741US10739043B2Conveying deviceJTEKT CORP·Filed 2017·Granted Aug 11, 2020·0 cites·8 claims
- 0835US2016061288A1FlywheelJTEKT CORP·Filed 2015·Application pending·0 cites
- 0929US2017117762A1Permanent-magnet dynamo-electric machine and compressor using the sameJOHNSON CONTROLS-HITACHI AIR CONDITIONING TECH (HONG KONG) LTD·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →