Inventor · disambiguated record
Shigemi Maeda
Also filed as: MAEDA SHIGEMI
91 granted patents·8 pending applications·1,378 citations·filing 1979–2021
99Inventor score
Top patents by PatentIndex Score
99 records- 0196US5420838ADisk recording and reproducing deviceSHARP KK·Filed 1993·Granted May 30, 1995·94 cites·20 claims
- 0296US5182741AOptical disk recording/reproducing device utilizing a constant angular velocity method with a constant linear velocity formatted optical diskSHARP KK·Filed 1990·Granted Jan 26, 1993·87 cites·32 claims
- 0392US5343452AData recording/reproducing apparatus of simultaneously performing both reproducing and recording from and in a single recording mediumSHARP KK·Filed 1992·Granted Aug 30, 1994·60 cites·3 claims
- 0492US5153861ARecording/reproducing deviceSHARP KK·Filed 1989·Granted Oct 6, 1992·52 cites·30 claims
- 0592US5005164ARecording and reproducing apparatusSHARP KK·Filed 1988·Granted Apr 2, 1991·46 cites·17 claims
- 0689US8411538B2Optical information storage medium reproduction apparatus and control method of the sameYAMAMOTO MASAKI·Filed 2010·Granted Apr 2, 2013·7 cites·2 claims
- 0788US6751173B1Optical disk and optical disk apparatusSHARP KK·Filed 2000·Granted Jun 15, 2004·24 cites·13 claims
- 0888US6028828ADisk type recording medium and disk recording and reproducing deviceSHARP KK·Filed 1997·Granted Feb 22, 2000·48 cites·7 claims
- 0988US5315571AInformation recording and reproducing device providing faster access time to a recording mediumSHARP KK·Filed 1993·Granted May 24, 1994·44 cites·14 claims
- 1087US8189444B2Optical information recording medium and optical information processing apparatusMORI GO·Filed 2008·Granted May 29, 2012·5 cites·6 claims
- 1187US4958337ADisk recording checking method for determining if a disk is defective by the number of errors presentSHARP KK·Filed 1989·Granted Sep 18, 1990·37 cites·7 claims
- 1287US4862443ASync signal detection apparatus for accurately synchronizing reproduced dataSHARP KK·Filed 1987·Granted Aug 29, 1989·34 cites·3 claims
- 1386US5870375ADisk-shaped recording medium with a groove section having a wobbling side wallSHARP KK·Filed 1996·Granted Feb 9, 1999·39 cites·14 claims
- 1486US5432768AMethod and device for data management in optical recording mediumSHARP KK·Filed 1993·Granted Jul 11, 1995·33 cites·1 claims
- 1585US7194674B2Adaptive waveform equalization for viterbi-decodable signal and signal quality evaluation of viterbi-decodable signalSHARP KK·Filed 2003·Granted Mar 20, 2007·19 cites·40 claims
- 1685US6201784B1Disk type recording medium having zones with address information recorded in grooves and recording and reproducing device thereforSHARP KK·Filed 1999·Granted Mar 13, 2001·36 cites·6 claims
- 1784US8169869B2Recording parameter setting device and method using pulse sequencesADACHI YOSHIHISA·Filed 2010·Granted May 1, 2012·4 cites·11 claims
- 1884US8072856B2Recording/reproducing device and method using pulse sequences, and information recording mediumADACHI YOSHIHISA·Filed 2010·Granted Dec 6, 2011·4 cites·12 claims
- 1984US5764607AMethod and apparatus for controlling digital copying of digitally recorded informationSHARP KK·Filed 1996·Granted Jun 9, 1998·42 cites·16 claims
- 2084US5434829AInformation reproducing apparatus for properly synchronizing the reproducing of recorded informationSHARP KK·Filed 1993·Granted Jul 18, 1995·35 cites·14 claims
- 2183US4788674AOptical disc record reproducing apparatusSHARP KK·Filed 1986·Granted Nov 29, 1988·28 cites·8 claims
- 2282US7835254B2Optical recording condition setting method, optical recording/reproducing device, control program, and recording mediumSHARP KK·Filed 2005·Granted Nov 16, 2010·4 cites·20 claims
- 2381US8072864B2Recording/reproducing device and method using pulse sequences and information recording mediumADACHI YOSHIHISA·Filed 2010·Granted Dec 6, 2011·3 cites·13 claims
- 2481US6600715B2Optical reproducing device and control method thereofSHARP KK·Filed 2001·Granted Jul 29, 2003·15 cites·13 claims
- 2581US5457667AData recording/reproducing apparatus with alternating access of compressed worksSHARP KK·Filed 1993·Granted Oct 10, 1995·31 cites·13 claims
- 2681US5005165AMethod for managing information on a storage media without losing information due to effectsSHARP KK·Filed 1988·Granted Apr 2, 1991·25 cites·7 claims
- 2780US6584050B1Optical recording device, optical reproducing device, and optical memory mediumSHARP KK·Filed 2000·Granted Jun 24, 2003·14 cites·12 claims
- 2880US5953297ADisk-shaped recording medium and disk recording or reproducing deviceSHARP KK·Filed 1998·Granted Sep 14, 1999·29 cites·12 claims
- 2979US5434991AMethod and apparatus for recording and reproducing information in black on a rewritable recording mediumSHARP KK·Filed 1991·Granted Jul 18, 1995·84 cites·6 claims
- 3079US5142521ARecording/reproducing deviceSHARP KK·Filed 1990·Granted Aug 25, 1992·28 cites·45 claims
- 3178US5377167ARecording/reproducing deviceSHARP KK·Filed 1993·Granted Dec 27, 1994·26 cites·50 claims
- 3277US6125085AOptical recording method and device for optimally controlling the width of the recording marksSHARP KK·Filed 1998·Granted Sep 26, 2000·29 cites·43 claims
- 3376US5093820AOptical disk recording/reproducing deviceSHARP KK·Filed 1990·Granted Mar 3, 1992·24 cites·22 claims
- 3475US6771576B2Optical reproduction apparatusSHARP KK·Filed 2001·Granted Aug 3, 2004·10 cites·26 claims
- 3573US7903519B2Recording mark formation method, information recording device, information recording method, and information recording mediumSHARP KK·Filed 2006·Granted Mar 8, 2011·2 cites·18 claims
- 3672US6741527B2Magneto-optical recording medium and magneto-optical recording and reproducing device capable of controlling reproduction power based on long recorded marksSHARP KK·Filed 2000·Granted May 25, 2004·9 cites·10 claims
- 3772US6327240B1Optical disc and optical disc driveSONY CORP·Filed 1998·Granted Dec 4, 2001·20 cites·3 claims
- 3872US5317549AInformation recording and reproducing apparatusSHARP KK·Filed 1992·Granted May 31, 1994·20 cites·21 claims
- 3972US4310838AInstruction controlled audio visual systemSHARP KK·Filed 1979·Granted Jan 12, 1982·19 cites·46 claims
- 4071US7027370B2Optical recording device and optical recording method, control program for the optical recording device, and computer-readable recording medium recording the control programSHARP KK·Filed 2001·Granted Apr 11, 2006·8 cites·28 claims
- 4171US5083301AOptical card recording and reproducing deviceSHARP KK·Filed 1989·Granted Jan 21, 1992·17 cites·8 claims
- 4270US6765860B2Optical disc and optical driveSONY CORP·Filed 2001·Granted Jul 20, 2004·6 cites·14 claims
- 4369US4924447AOptical memory device for recording, reproducing or erasing information onto a recording medium, including a recorded region detecting circuit.SHARP KK·Filed 1987·Granted May 8, 1990·12 cites·4 claims
- 4468US8130457B2Magnetic recording/reproducing apparatus and method for determining magnetic recording conditionNAKANO IKUO·Filed 2007·Granted Mar 6, 2012·1 cites·10 claims
- 4567US8159912B2Recording parameter setting device, program thereof, computer-readable recording medium containing the program, information recording medium, recording/reproducing device, and recording parameter setting methodADACHI YOSHIHISA·Filed 2008·Granted Apr 17, 2012·0 cites·16 claims
- 4667US6392970B1Reproducing light quantity control method for optical memory device, and reproducing light quantity control device, and optical recording mediumSHARP KK·Filed 1998·Granted May 21, 2002·19 cites·12 claims
- 4765US6909677B1Optical disk, optical reproduction device, and optical recording deviceSHARP KK·Filed 2000·Granted Jun 21, 2005·5 cites·16 claims
- 4865US4999824AMagneto-optical memory deviceSHARP KK·Filed 1989·Granted Mar 12, 1991·10 cites·2 claims
- 4965US2010232269A1Optical information storage medium reproduction apparatus and control method of the sameSHARP KK·Filed 2008·Application pending·0 cites
- 5064US8982194B2Image watching glasses identification device, image watching system, pair of image watching glasses, image watching glasses identification program, computer-readable recording medium, and display deviceMORI GO·Filed 2011·Granted Mar 17, 2015·1 cites·1 claims
Showing the top 50 of 99 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →