Inventor · disambiguated record
Toshiaki Oka
Also filed as: OKA TOSHIAKI
23 granted patents·2 pending applications·238 citations·filing 1999–2023
94Inventor score
Files withTOKIN CORP5TOSHIBA MITSUBISHI ELEC IND4TOSHIBA MITSUBISHI ELEC INC3YAMATAKE CORP3OKA TOSHIAKI2
Top patents by PatentIndex Score
25 records- 0196US7403404B2Power inverter system and method of correcting supply voltage of the sameTOSHIBA MITSUBISHI ELEC INC·Filed 2005·Granted Jul 22, 2008·47 cites·5 claims
- 0286US6320767B1Inverter apparatusTOSHIBA KK·Filed 1999·Granted Nov 20, 2001·107 cites·12 claims
- 0380US7091690B1Power conversion deviceTOSHIBA MITSUBISHI ELEC INC·Filed 2005·Granted Aug 15, 2006·13 cites·6 claims
- 0477US7489487B2Multi-level power converterTOSHIBA MITSUBISHI ELEC INC·Filed 2006·Granted Feb 10, 2009·14 cites·18 claims
- 0577US7437267B2Sewage inflow amount predicting device and method, and server deviceYAMATAKE CORP·Filed 2002·Granted Oct 14, 2008·12 cites·3 claims
- 0674US11081999B2Power conversion apparatusTOSHIBA MITSUBISHI ELEC IND·Filed 2020·Granted Aug 3, 2021·1 cites·8 claims
- 0772US6507505B2Power conversion deviceTOSHIBA KK·Filed 2001·Granted Jan 14, 2003·27 cites·19 claims
- 0868US8760896B2Multilevel regeneration drive systemOKA TOSHIAKI·Filed 2010·Granted Jun 24, 2014·3 cites·22 claims
- 0963US7519473B2Device and method for estimating occurrence distribution of unascertained water and recording mediumYAMATAKE CORP·Filed 2004·Granted Apr 14, 2009·0 cites·1 claims
- 1058US11056262B2Inductive element and LC filterTOYOTA JIDOSHOKKI KK·Filed 2018·Granted Jul 6, 2021·1 cites·2 claims
- 1158USD906965SInductorTOKIN CORP·Filed 2018·Granted Jan 5, 2021·8 cites·1 claims
- 1254US8248828B2Medium voltage inverter systemMORISHITA TAKASHI·Filed 2009·Granted Aug 21, 2012·4 cites·21 claims
- 1353US10509079B2Inverter test apparatusTOSHIBA MITSUBISHI ELECTRICAL IND SYSTEMS CORPORATION·Filed 2016·Granted Dec 17, 2019·1 cites·6 claims
- 1452US12119163B2InductorTOKIN CORP·Filed 2020·Granted Oct 15, 2024·0 cites·6 claims
- 1552US6793806B2Water distribution amount predicting systemYAMATAKE CORP·Filed 2002·Granted Sep 21, 2004·0 cites·4 claims
- 1649US2025286278A1Antenna deviceTOKIN CORP·Filed 2023·Application pending·0 cites
- 1747US10130017B2Device provided with electromagnetic interference suppression bodyTOKIN CORP·Filed 2015·Granted Nov 13, 2018·0 cites·9 claims
- 1844US10536105B2Power conversion apparatusTOSHIBA MITSUBISHI ELEC IND·Filed 2018·Granted Jan 14, 2020·0 cites·7 claims
- 1943US10729044B2Electronic device and method for disposing electromagnetic interference suppressorTOKIN CORP·Filed 2016·Granted Jul 28, 2020·0 cites·12 claims
- 2043US10069452B2Motor driving systemTOSHIBA MITSUBISHI ELEC IND·Filed 2016·Granted Sep 4, 2018·0 cites·3 claims
- 2142US9685884B2Seven-level inverter apparatusTOSHIBA MITSUBISHI-ELECTRIC IND SYSTEMS CORP·Filed 2013·Granted Jun 20, 2017·0 cites·5 claims
- 2239US8427173B2Open fuse detection by neutral point shiftOKA TOSHIAKI·Filed 2009·Granted Apr 23, 2013·0 cites·16 claims
- 2339US2011266884A1Electric power transmission apparatus and noncontact electric power transmission systemNEC TOKIN CORP·Filed 2010·Application pending·0 cites
- 2437US11218079B2Power conversion deviceTOSHIBA MITSUBISHI ELEC IND·Filed 2018·Granted Jan 4, 2022·0 cites·11 claims
- 2531US9716317B2Antenna device, communication module, portable electronic apparatus, and communication method using portable electronic apparatusCHATANI KENICHI·Filed 2011·Granted Jul 25, 2017·0 cites·10 claims
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