Inventor · disambiguated record
Takeshi Nakao
Also filed as: MAEDA TAKESHI · NAKAO TAKESHI
78 granted patents·17 pending applications·1,966 citations·filing 1984–2024
99Inventor score
Top patents by PatentIndex Score
95 records- 0199US7345400B2Surface acoustic wave deviceMURATA MANUFACTURING CO·Filed 2007·Granted Mar 18, 2008·184 cites·9 claims
- 0298US7327071B2Surface acoustic wave deviceMURATA MANUFACTURING CO·Filed 2006·Granted Feb 5, 2008·111 cites·7 claims
- 0398US5390061AMultilayer magnetoresistance effect-type magnetic headHITACHI LTD·Filed 1991·Granted Feb 14, 1995·156 cites·27 claims
- 0498US5377178AData recording/reproducing method and apparatus using a recording medium having clock marks recorded in a wobbled track for read/write synchronizationHITACHI LTD·Filed 1992·Granted Dec 27, 1994·198 cites·38 claims
- 0596US4901325ASemiconductor laser deviceHITACHI LTD·Filed 1988·Granted Feb 13, 1990·81 cites·19 claims
- 0695US6687099B2Magnetic head with conductors formed on endlayers of a multilayer film having magnetic layer coercive force differenceHITACHI LTD·Filed 2002·Granted Feb 3, 2004·33 cites·10 claims
- 0795US5361244AOptical head and information recording apparatusHITACHI LTD·Filed 1992·Granted Nov 1, 1994·93 cites·17 claims
- 0895US4622564AOptical information recording apparatusHITACHI LTD·Filed 1984·Granted Nov 11, 1986·51 cites·16 claims
- 0994US7418772B2Method for manufacturing a surface acoustic waveMURATA MANUFACTURING CO·Filed 2007·Granted Sep 2, 2008·26 cites·3 claims
- 1094US5726837AMultilayer magnetoresistance effect-type magnetic headHITACHI LTD·Filed 1994·Granted Mar 10, 1998·43 cites·24 claims
- 1193US7411334B2Surface acoustic wave apparatus and manufacturing method thereforMURATA MANUFACTURING CO·Filed 2007·Granted Aug 12, 2008·23 cites·3 claims
- 1293US5568331AMethod of head positioning and magnetic recording disk drive using the sameHITACHI LTD·Filed 1990·Granted Oct 22, 1996·67 cites·22 claims
- 1392US7009468B2Surface acoustic wave device and electronic device using the sameMURATA MANUFACTURING CO·Filed 2002·Granted Mar 7, 2006·54 cites·18 claims
- 1491US5325244AMagnetic recording data storage systemHITACHI LTD·Filed 1992·Granted Jun 28, 1994·55 cites·12 claims
- 1590US12034427B2Acoustic wave deviceMURATA MANUFACTURING CO·Filed 2021·Granted Jul 9, 2024·2 cites·17 claims
- 1689US6011674AMagnetoresistance effect multilayer film with ferromagnetic film sublayers of different ferromagnetic material compositionsHITACHI LTD·Filed 1996·Granted Jan 4, 2000·33 cites·6 claims
- 1786US6483677B2Magnetic disk apparatus including magnetic head having multilayered reproducing element using tunneling effectHITACHI LTD·Filed 2001·Granted Nov 19, 2002·11 cites·6 claims
- 1886US6125087AOptical pickup for optical disk apparatusHITACHI LTD·Filed 1997·Granted Sep 26, 2000·50 cites·6 claims
- 1985US6154105ASurface acoustic wave device with specific electrode materials and quartz substrate euler anglesMURATA MANUFACTURING CO·Filed 1999·Granted Nov 28, 2000·45 cites·20 claims
- 2085US5093822AHigh-density magnetic recording and optical reproducing apparatusHITACHI LTD·Filed 1990·Granted Mar 3, 1992·39 cites·16 claims
- 2185US5020041AMagneto-optical memory apparatus having a floating magnetic headHITACHI LTD·Filed 1988·Granted May 28, 1991·31 cites·23 claims
- 2284US7208860B2Surface acoustic wave deviceMURATA MANUFACTURING CO·Filed 2005·Granted Apr 24, 2007·10 cites·17 claims
- 2384US5060208AMagnetooptical recording method and apparatus utilizing shift adjustmentHITACHI LTD·Filed 1988·Granted Oct 22, 1991·30 cites·18 claims
- 2484US5043960AOverwritable magneto-optic recording and reproducing apparatusHITACHI LTD·Filed 1988·Granted Aug 27, 1991·29 cites·19 claims
- 2583US7209018B2Surface acoustic wave deviceMURATA MANUFACTURING CO·Filed 2004·Granted Apr 24, 2007·20 cites·24 claims
- 2682US7339304B2Surface acoustic wave deviceMURATA MANUFACTURING CO·Filed 2004·Granted Mar 4, 2008·23 cites·35 claims
- 2781US7230365B2Surface acoustic wave apparatus and manufacturing method thereforMURATA MANUFACTURING CO·Filed 2003·Granted Jun 12, 2007·20 cites·34 claims
- 2881US6946930B2Surface acoustic wave device and electronic device using the sameMURATA MANUFACTURING CO·Filed 2002·Granted Sep 20, 2005·22 cites·18 claims
- 2981US6437668B1Surface acoustic wave resonator, surface acoustic wave device, and communication device using shear horizontal wavesMURATA MANUFACTURING CO·Filed 2000·Granted Aug 20, 2002·22 cites·18 claims
- 3079US6278593B1Magnetoresistance effect elements and magnetic heads using the tunneling magnetoresistive effectHITACHI LTD·Filed 1999·Granted Aug 21, 2001·17 cites·64 claims
- 3178US5315573ANon-linear optical saturable absorber layer in an optical disk to discriminate wavelength above or below a threshold level of intensityHITACHI LTD·Filed 1992·Granted May 24, 1994·26 cites·16 claims
- 3278US5235591AStack type optical disc apparatus, sealed and separate type optical head therefor and optical disc mediumHITACHI LTD·Filed 1991·Granted Aug 10, 1993·27 cites·34 claims
- 3377US6369491B1Surface acoustic wave device and method for manufacturing the sameMURATA MANUFACTURING CO·Filed 2000·Granted Apr 9, 2002·17 cites·10 claims
- 3476US7218039B2Surface acoustic wave deviceMURATA MANUFACTURING CO·Filed 2006·Granted May 15, 2007·7 cites·8 claims
- 3575US6784764B2End-surface reflection type surface acoustic wave filterMURATA MANUFACTURING CO·Filed 2002·Granted Aug 31, 2004·15 cites·15 claims
- 3675US5404344ARecording/reproducing optical head producing focusing error signal from zero-th order diffracted light and tracking error signal from first order diffracted lightHITACHI LTD·Filed 1993·Granted Apr 4, 1995·23 cites·12 claims
- 3775US5270987AMagneto-optical recording and reproducing method, magneto-optical memory apparatus and magneto-optical recording medium thereforHITACHI LTD·Filed 1990·Granted Dec 14, 1993·22 cites·53 claims
- 3874US7876021B2Surface acoustic wave device including an IDT defined by a metal filled in grooves in a piezoelectric substrateMURATA MANUFACTURING CO·Filed 2009·Granted Jan 25, 2011·7 cites·5 claims
- 3974US6272097B1Optical head and apparatus for recording and reproducing optical information through the use of the optical headHITACHI LTD·Filed 1999·Granted Aug 7, 2001·25 cites·25 claims
- 4073US9196818B2Boundary acoustic wave deviceMURATA MANUFACTURING CO·Filed 2013·Granted Nov 24, 2015·3 cites·8 claims
- 4173US7569972B2Surface acoustic wave deviceMURATA MANUFACTURING CO·Filed 2008·Granted Aug 4, 2009·7 cites·3 claims
- 4273US5490133AOptical information processing apparatus and method of controlling position of optical spot and reproducing signalsHITACHI LTD·Filed 1991·Granted Feb 6, 1996·22 cites·31 claims
- 4372US8427032B2Surface acoustic wave deviceNISHIYAMA KENJI·Filed 2012·Granted Apr 23, 2013·4 cites·6 claims
- 4471US8436510B2Boundary acoustic wave deviceYAMANE TAKASHI·Filed 2010·Granted May 7, 2013·3 cites·8 claims
- 4571US7034433B2Surface acoustic wave deviceMURATA MANUFACTURING CO·Filed 2002·Granted Apr 25, 2006·10 cites·12 claims
- 4669US7054120B2Magnetic apparatus with perpendicular recording medium and head having multilayered reproducing element using tunneling effectHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted May 30, 2006·7 cites·7 claims
- 4769US5930220ATracking method for optical disk apparatus using diffraction lightHITACHI LTD·Filed 1996·Granted Jul 27, 1999·22 cites·4 claims
- 4868US6836196B2Surface acoustic wave apparatus utilizing a leaky surface acoustic waveMURATA MANUFACTURING CO·Filed 2002·Granted Dec 28, 2004·11 cites·21 claims
- 4967US6865786B2Method for manufacturing a surface acoustic wave device using a shear horizontal type surface acoustic waveMURATA MANUFACTURING CO·Filed 2003·Granted Mar 15, 2005·9 cites·5 claims
- 5066US7701113B2Acoustic wave device and method for fabricating the sameMURATA MANUFACTURING CO·Filed 2008·Granted Apr 20, 2010·3 cites·14 claims
Showing the top 50 of 95 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →