Inventor · disambiguated record
Takahisa Kageyama
Also filed as: KAGEYAMA TAKAHISA
13 granted patents·2 pending applications·201 citations·filing 1995–2018
90Inventor score
Top patents by PatentIndex Score
15 records- 0191US5729118AVariable speed induction generator-motor with controllable excitation frequencyTOSHIBA KK·Filed 1995·Granted Mar 17, 1998·97 cites·8 claims
- 0284US6967452B2Operation apparatus with auto correction of position data of electric fadersYAMAHA CORP·Filed 2003·Granted Nov 22, 2005·32 cites·22 claims
- 0382US9548685B2Over-voltage prevention device and current rectifying circuitTOSHIBA KK·Filed 2015·Granted Jan 17, 2017·3 cites·15 claims
- 0479US10291159B2Control system, controller, and control method for wound induction machineTOSHIBA KK·Filed 2018·Granted May 14, 2019·2 cites·7 claims
- 0575US8031887B2Audio signal processing systemYAMAHA CORP·Filed 2007·Granted Oct 4, 2011·4 cites·9 claims
- 0673US6169677B1Power converting system multiplexed with voltage dividing transformers, the voltage transformers, and controller for the systemTOSHIBA KK·Filed 1999·Granted Jan 2, 2001·47 cites·12 claims
- 0770US9344015B2Variable speed control apparatus and operation methodTOSHIBA KK·Filed 2014·Granted May 17, 2016·2 cites·8 claims
- 0869US10458384B2Pumped-storage power generation control device and pumped-storage power generation control methodTOSHIBA KK·Filed 2016·Granted Oct 29, 2019·1 cites·12 claims
- 0969US7403616B2Electronic apparatus, data recording method for the electronic apparatus, and storage medium storing program for executing the data recording methodYAMAHA CORP·Filed 2001·Granted Jul 22, 2008·9 cites·7 claims
- 1068US8031886B2Audio signal processing systemYAMAHA CORP·Filed 2007·Granted Oct 4, 2011·2 cites·13 claims
- 1158US8121314B2Mixing apparatus, mixing method, and mixing programKAGEYAMA TAKAHISA·Filed 2005·Granted Feb 21, 2012·1 cites·9 claims
- 1257US9300185B2Flywheel power generating facility and method of operating sameTOSHIBA KK·Filed 2013·Granted Mar 29, 2016·1 cites·8 claims
- 1341US9478972B2Over-voltage prevention deviceTOSHIBA KK·Filed 2015·Granted Oct 25, 2016·0 cites·2 claims
- 1433US2016042103A1Test apparatus, test method and test system for variable speed controllerTOSHIBA KK·Filed 2015·Application pending·0 cites
- 1527US2002015504A1Mixing apparatus with recording/reproducing functionFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →