Inventor · disambiguated record
Yoichi Okubo
Also filed as: OKUBO YOICHI
34 granted patents·2 pending applications·678 citations·filing 1982–2016
97Inventor score
Files withHITACHI INT ELECTRIC INC23MITSUBISHI ELECTRIC CORP4UBE INDUSTRIES3KOKUSAI ELECTRIC CO LTD2HOYA LENS CORP1
Top patents by PatentIndex Score
36 records- 0198US7427895B1Doherty amplifier with improved linearityHITACHI INT ELECTRIC INC·Filed 2006·Granted Sep 23, 2008·78 cites·13 claims
- 0294US4506518ACooling control system and expansion valve thereforTAIHEIYO KOGYO KK·Filed 1984·Granted Mar 26, 1985·172 cites·23 claims
- 0392US7847630B2AmplifierHITACHI INT ELECTRIC INC·Filed 2005·Granted Dec 7, 2010·23 cites·4 claims
- 0490US8030995B2Power circuit used for an amplifierHITACHI INT ELECTRIC INC·Filed 2009·Granted Oct 4, 2011·21 cites·4 claims
- 0589US8014443B2Non-linear distortion detection method and distortion compensation amplifying deviceHITACHI INT ELECTRIC INC·Filed 2008·Granted Sep 6, 2011·20 cites·7 claims
- 0686US6931239B2Peak limiter and multi-carrier amplification apparatusHITACHI INT ELECTRIC INC·Filed 2002·Granted Aug 16, 2005·28 cites·12 claims
- 0785US8035444B2Amplifier apparatusHITACHI INT ELECTRIC INC·Filed 2009·Granted Oct 11, 2011·17 cites·3 claims
- 0885US7142615B2Distortion compensatorHITACHI INT ELECTRIC INC·Filed 2002·Granted Nov 28, 2006·37 cites·14 claims
- 0983US7626455B2Distortion compensation apparatusHITACHI INT ELECTRIC INC·Filed 2008·Granted Dec 1, 2009·13 cites·3 claims
- 1082US6714073B2Predistortion type distortion compensation amplification apparatusHITACHI INT ELECTRIC INC·Filed 2002·Granted Mar 30, 2004·28 cites·2 claims
- 1180US4528351APlastic lensHOYA LENS CORP·Filed 1982·Granted Jul 9, 1985·38 cites·3 claims
- 1279US10457269B2Vehicle energy management deviceMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Oct 29, 2019·4 cites·9 claims
- 1376US5689355ARepeater using optical cables for radio paging systemKOKUSAI ELECTRIC CO LTD·Filed 1996·Granted Nov 18, 1997·107 cites·6 claims
- 1473US6904267B2Amplifying deviceHITACHI INT ELECTRIC INC·Filed 2002·Granted Jun 7, 2005·14 cites·18 claims
- 1571US7714648B2Amplifying systemHITACHI INT ELECTRIC INC·Filed 2006·Granted May 11, 2010·7 cites·3 claims
- 1668US9184792B2Charging communication system and charging equipmentMITSUBISHI ELECTRIC CORP·Filed 2013·Granted Nov 10, 2015·3 cites·18 claims
- 1768US6741128B2Distortion canceling circuitHITACHI INT ELECTRIC INC·Filed 2002·Granted May 25, 2004·15 cites·3 claims
- 1863US7846546B2Electrically conducting-inorganic substance-containing silicon carbide-based fine particles, electromagnetic wave absorbing material and electromagnetic wave absorberUBE INDUSTRIES·Filed 2006·Granted Dec 7, 2010·3 cites·15 claims
- 1962US6698224B2Electronic apparatus having at least two electronic parts operating at different temperaturesHITACHI INT ELECTRIC INC·Filed 2002·Granted Mar 2, 2004·11 cites·9 claims
- 2060US6753728B2Distortion reducing circuitHITACHI INT ELECTRIC INC·Filed 2002·Granted Jun 22, 2004·10 cites·3 claims
- 2158US9153989B2Power monitoring system and electric vehicleMATSUNAGA TAKANORI·Filed 2012·Granted Oct 6, 2015·2 cites·7 claims
- 2256US7149497B2Radio signal receiving deviceHITACHI INT ELECTRIC INC·Filed 2002·Granted Dec 12, 2006·4 cites·10 claims
- 2355US7583239B2Wireless communications deviceHITACHI INT ELECTRIC INC·Filed 2006·Granted Sep 1, 2009·2 cites·3 claims
- 2454US7719364B2High frequency power amplifierHITACHI INT ELECTRIC INC·Filed 2009·Granted May 18, 2010·3 cites·7 claims
- 2552US6856196B2Distortion compensatorHITACHI INT ELECTRIC INC·Filed 2003·Granted Feb 15, 2005·7 cites·18 claims
- 2650US7719353B2LINC amplifying deviceHITACHI INT ELECTRIC INC·Filed 2009·Granted May 18, 2010·2 cites·1 claims
- 2750US6271723B1Distortion compensating deviceKOKUSAI ELECTRIC CO LTD·Filed 2000·Granted Aug 7, 2001·7 cites·31 claims
- 2847US9139163B2Electric-powered vehicleMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Sep 22, 2015·0 cites·5 claims
- 2942US9346366B2Charge/discharge systemSATAKE TOSHIHIDE·Filed 2013·Granted May 24, 2016·0 cites·6 claims
- 3042US6959174B2Amplifying deviceHITACHI INT ELECTRIC INC·Filed 2002·Granted Oct 25, 2005·0 cites·8 claims
- 3142US2009206927A1AmplifierHITACHI INT ELECTRIC INC·Filed 2009·Application pending·0 cites
- 3240US9932021B2Vehicle collision prevention apparatusMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Apr 3, 2018·0 cites·13 claims
- 3339US6809588B2Distortion compensation circuitHITACHI INT ELECTRIC INC·Filed 2002·Granted Oct 26, 2004·2 cites·18 claims
- 3435US2006155088A1Crystalline polymer exhibiting solid phase transition phenomenon and use thereofUBE INDUSTRIES·Filed 2004·Application pending·0 cites
- 3534US6968210B2Receiving apparatusHITACHI INT ELECTRIC INC·Filed 2002·Granted Nov 22, 2005·0 cites·16 claims
- 3632US6773634B2Conductive polymer composition and PTC elementUBE INDUSTRIES·Filed 2001·Granted Aug 10, 2004·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →