Inventor · disambiguated record
Takao Maruyama
Also filed as: MARUYAMA TAKAO
22 granted patents·4 pending applications·399 citations·filing 1979–2020
95Inventor score
Files withNEC CORP6SONY CORP5YOKOGAWA ELECTRIC CORP5SONY INTERACTIVE ENTERTAINMENT INC3NISSAN MOTOR2
Top patents by PatentIndex Score
26 records- 0196US4264743APolyurethane foam sealing material and process for producing the sameNHK SPRING CO LTD·Filed 1979·Granted Apr 28, 1981·215 cites·11 claims
- 0285US6399468B2Semiconductor device and method of manufacturing the sameSANYO ELECTRIC CO·Filed 2001·Granted Jun 4, 2002·35 cites·5 claims
- 0382US4954920AThin film magnetic headNEC CORP·Filed 1987·Granted Sep 4, 1990·29 cites·1 claims
- 0480US7799485B2Fuel cell system and composition for electrodeNISSAN MOTOR·Filed 2005·Granted Sep 21, 2010·4 cites·61 claims
- 0580US7099247B2Disk drive apparatusSONY CORP·Filed 2005·Granted Aug 29, 2006·4 cites·6 claims
- 0680US5555147AMR/inductive combined thin film magnetic head capable of reducing occurrence of a short circuitNEC CORP·Filed 1994·Granted Sep 10, 1996·31 cites·6 claims
- 0777US6559504B2Lateral double diffused MOS transistorSANYO ELECTRIC CO·Filed 2002·Granted May 6, 2003·20 cites·6 claims
- 0873US10591735B2Head-mounted display device and image display systemSONY INTERACTIVE ENTERTAINMENT INC·Filed 2015·Granted Mar 17, 2020·2 cites·5 claims
- 0969US6605185B2Method of manipulating dryer steam pressure in paper machine during grade change and apparatus for the methodYOKOGAWA ELECTRIC CORP·Filed 2001·Granted Aug 12, 2003·8 cites·4 claims
- 1067US7042821B2Disk drive apparatus for optimum motor controlSONY CORP·Filed 2002·Granted May 9, 2006·6 cites·6 claims
- 1165US6904331B2Method of paper machine control and apparatus for the methodYOKOGAWA ELECTRIC CORP·Filed 2002·Granted Jun 7, 2005·6 cites·18 claims
- 1257US7006413B2Disk driving apparatusSONY CORP·Filed 2002·Granted Feb 28, 2006·3 cites·5 claims
- 1355US5140484AMagnetoresistive head having electrodes with a predetermined length and positioned to form a predetermined angle with the head surfaceNEC CORP·Filed 1991·Granted Aug 18, 1992·10 cites·2 claims
- 1454US8304856B2Semiconductor deviceMITA KEIJI·Filed 2010·Granted Nov 6, 2012·1 cites·8 claims
- 1554US6597140B2Sensorless motor starting systemSONY CORP·Filed 2001·Granted Jul 22, 2003·9 cites·2 claims
- 1652US2023372570A1Aroma chemical presentation apparatusSONY INTERACTIVE ENTERTAINMENT INC·Filed 2020·Application pending·0 cites
- 1751US4750070AThin film magnetic head with a magnetic gap spacer of a thermally decomposed polymerNEC CORP·Filed 1987·Granted Jun 7, 1988·8 cites·20 claims
- 1850US5235484ALow profile magnetic transducer assembly with negative pressure sliderNEC CORP·Filed 1991·Granted Aug 10, 1993·8 cites·4 claims
- 1946US9953128B2Identification apparatus, control apparatus, identification method, program, and identification systemSONY CORP·Filed 2012·Granted Apr 24, 2018·0 cites·15 claims
- 2043US2011223502A1Fuel Reforming Apparatus And Fuel Cell SystemNISSAN MOTOR·Filed 2003·Application pending·0 cites
- 2140US2017207629A1Industrial demand response enabling system, industrial demand response enabling method, and programYOKOGAWA ELECTRIC CORP·Filed 2017·Application pending·0 cites
- 2239US2017161849A1Industry demand-response control system and industry demand-response control methodYOKOGAWA ELECTRIC CORP·Filed 2017·Application pending·0 cites
- 2338US10353207B2Head-mounted display device and video display systemSONY INTERACTIVE ENTERTAINMENT INC·Filed 2015·Granted Jul 16, 2019·0 cites·6 claims
- 2436US8391111B2Optical pickup control circuit and optical disc drive deviceMARUYAMA TAKAO·Filed 2011·Granted Mar 5, 2013·0 cites·10 claims
- 2529US5471349ADrive circuit for a dual-element magnetic head assembly which includes an encodor, flip-flop circuit, record bit adding circuit, and record amplifierNEC CORP·Filed 1994·Granted Nov 28, 1995·0 cites·7 claims
- 2627US6547930B2Method for estimating dryer vapor pressure in papermaking machine and apparatus thereforYOKOGAWA ELECTRIC CORP·Filed 2001·Granted Apr 15, 2003·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →