Inventor · disambiguated record
Akio Fukushima
Also filed as: FUKUSHIMA AKIO
60 granted patents·14 pending applications·772 citations·filing 1979–2020
99Inventor score
Top patents by PatentIndex Score
74 records- 0195US8680632B2Magnetoresistive element and magnetic memoryDAIBOU TADAOMI·Filed 2011·Granted Mar 25, 2014·25 cites·19 claims
- 0293US8107281B2Magnetoresistive element and magnetic memoryKAI TADASHI·Filed 2010·Granted Jan 31, 2012·23 cites·12 claims
- 0393US7764136B2Microwave transmission line integrated microwave generating element and microwave transmission line integrated microwave detecting elementJAPAN SCIENCE & TECH AGENCY·Filed 2006·Granted Jul 27, 2010·56 cites·7 claims
- 0493US7556869B2Electronic device and wiring with a current induced cooling effect, and an electronic device capable of converting a temperature difference into voltageNAT INST OF ADVANCED IND SCIEN·Filed 2005·Granted Jul 7, 2009·28 cites·6 claims
- 0590US6023935AAir conditionerMITSUBISHI ELECTRIC CORP·Filed 1998·Granted Feb 15, 2000·82 cites·22 claims
- 0689US9087980B2Magnetoresistive element and magnetic memoryTOSHIBA KK·Filed 2014·Granted Jul 21, 2015·8 cites·19 claims
- 0789US8208292B2Magnetoresistive element and magnetic memoryKAI TADASHI·Filed 2012·Granted Jun 26, 2012·13 cites·15 claims
- 0889US8159906B2Address generating and detecting method and reproducing and recording apparatusIKEDA MASAKAZU·Filed 2009·Granted Apr 17, 2012·8 cites·8 claims
- 0989US6002655AOptical disc apparatus accessing method and system thereforHITACHI LTD·Filed 1997·Granted Dec 14, 1999·41 cites·5 claims
- 1088US4771610AMultiroom air conditionerMITSUBISHI ELECTRIC CORP·Filed 1987·Granted Sep 20, 1988·78 cites·10 claims
- 1187US9219227B2Magnetoresistive element and magnetic memoryTOSHIBA KK·Filed 2014·Granted Dec 22, 2015·6 cites·20 claims
- 1287US9182304B2Power meter, power measurement method, program and storage mediumNAMIKI TSUYOSHI·Filed 2011·Granted Nov 10, 2015·15 cites·9 claims
- 1386US5528574ADisk reproducing apparatus capable of increasing speed of access to disks recorded at constant linear velocityHITACHI LTD·Filed 1994·Granted Jun 18, 1996·38 cites·8 claims
- 1484US8013408B2Negative-resistance device with the use of magneto-resistive effectCANON ANELVA CORP·Filed 2009·Granted Sep 6, 2011·11 cites·9 claims
- 1584US4458502AAir conditioning deviceMITSUBISHI ELECTRIC CORP·Filed 1982·Granted Jul 10, 1984·47 cites·25 claims
- 1682US8705269B2Magnetoresistive element and magnetic memoryNAGASE TOSHIHIKO·Filed 2011·Granted Apr 22, 2014·6 cites·18 claims
- 1782US6552970B2Optical disk apparatusHITACHI LTD·Filed 2002·Granted Apr 22, 2003·11 cites·5 claims
- 1881US8502331B2Magnetoresistive effect element, magnetic memoryKITAGAWA EIJI·Filed 2011·Granted Aug 6, 2013·5 cites·14 claims
- 1981US7113613B2Watermark information detection methodHITACHI LTD·Filed 2002·Granted Sep 26, 2006·29 cites·4 claims
- 2081US6643231B2Optical disc apparatus and methodHITACHI LTD·Filed 2002·Granted Nov 4, 2003·9 cites·6 claims
- 2176US8521795B2Random number generating deviceFUKUSHIMA AKIO·Filed 2008·Granted Aug 27, 2013·8 cites·12 claims
- 2275US6108291AOptical disc apparatus accessing method and system thereforHITACHI LTD·Filed 1999·Granted Aug 22, 2000·17 cites·4 claims
- 2374US8325576B2Optical disc, optical disc recording apparatus, optical disc reproducing apparatus, information recording method, information reproducing method, and information recording-reproducing methodNISHIMURA KOICHIRO·Filed 2009·Granted Dec 4, 2012·2 cites·20 claims
- 2472US8289820B2Address generating and detecting method and reproducing and recording apparatusIKEDA MASAKAZU·Filed 2012·Granted Oct 16, 2012·2 cites·5 claims
- 2570US7961582B2Optical disk recording apparatus, laser diode driving apparatus and recording signal generating apparatusHITACHI LTD·Filed 2005·Granted Jun 14, 2011·1 cites·10 claims
- 2670US6317403B1Optical disc apparatus accessing method and system thereforHITACHI LTD·Filed 1999·Granted Nov 13, 2001·14 cites·2 claims
- 2769US7145851B2Optical disk apparatus and information recording apparatusHITACHI LTD·Filed 2003·Granted Dec 5, 2006·8 cites·24 claims
- 2869US6262957B1Method and apparatus for automatically discriminating types of optical disksHITACHI LTD·Filed 1997·Granted Jul 17, 2001·20 cites·12 claims
- 2968US6452889B2Optical disc apparatus accessing method and system thereforHITACHI LTD·Filed 2001·Granted Sep 17, 2002·4 cites·6 claims
- 3065US7395431B2Data encryption method, recording medium, data transfer apparatus, and encrypted data decryption methodHITACHI LTD·Filed 2002·Granted Jul 1, 2008·5 cites·16 claims
- 3163US8331214B2Optical recording medium capable of increasing the number of wobble address bits and method for recording and reproducing thereofFUKUSHIMA AKIO·Filed 2009·Granted Dec 11, 2012·0 cites·6 claims
- 3263US2009310457A1Optical Disk Recording Apparatus, Laser Diode Driving Apparatus and Recording Signal Generating ApparatusHITACHI LTD·Filed 2009·Application pending·0 cites
- 3362US5546381ASpread spectrum communication system and method, using sequentially phase shifted M-sequence codesPIONEER ELECTRONIC CORP·Filed 1995·Granted Aug 13, 1996·26 cites·13 claims
- 3461US4526010ASeparation type air conditionerMITSUBISHI ELECTRIC CORP·Filed 1981·Granted Jul 2, 1985·22 cites·10 claims
- 3560US7289721B1Method and apparatus for data reproductionHITACHI LTD·Filed 2000·Granted Oct 30, 2007·3 cites·24 claims
- 3658US8144567B2Optical disc and optical disc apparatusFUKUSHIMA AKIO·Filed 2009·Granted Mar 27, 2012·0 cites·13 claims
- 3757US8320222B2Semiconductor integrated circuit and disk recording and reproducing drive using the sameNAKANO NORIHIKO·Filed 2011·Granted Nov 27, 2012·1 cites·45 claims
- 3857US8014259B2Multi layer optical disc and optical disc apparatus capable of coping with the multi layer optical discHITACHI LTD·Filed 2008·Granted Sep 6, 2011·0 cites·6 claims
- 3957US6484318B1CATV communication system and method for the internet connectionPIONEER ELECTRONIC CORP·Filed 1997·Granted Nov 19, 2002·43 cites·35 claims
- 4056US8179752B2Optical disc apparatus thereforISHIKAWA YOSHINORI·Filed 2009·Granted May 15, 2012·0 cites·10 claims
- 4156US7839728B2Optical disc recording deviceHITACHI LTD·Filed 2005·Granted Nov 23, 2010·0 cites·8 claims
- 4255US8165453B2Method and apparatus for data reproductionFUKUSHIMA AKIO·Filed 2007·Granted Apr 24, 2012·0 cites·15 claims
- 4355US5299634AIndoor unit of a ventilation system, ventilation and air conditionerMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Apr 5, 1994·21 cites·1 claims
- 4454US8488437B2Information recording medium, address generation and detection method, and reproducing and recording apparatusesHITACHI CONSUMER ELECTRONICS·Filed 2012·Granted Jul 16, 2013·0 cites·5 claims
- 4553US4959733AMotor rotation control apparatus with motor rotational frequency memoryHITACHI LTD·Filed 1988·Granted Sep 25, 1990·10 cites·20 claims
- 4653US2009086607A1Optical Information Recording and Reproducing ApparatusHITACHI LTD·Filed 2008·Application pending·0 cites
- 4752US12165009B2Quantum bit cell and quantum bit integrated circuitAIST·Filed 2020·Granted Dec 10, 2024·0 cites·6 claims
- 4851US9230628B2Magnetic memoryTOSHIBA KK·Filed 2014·Granted Jan 5, 2016·0 cites·22 claims
- 4951US8264921B2Optical disc recording deviceFUKUSHIMA AKIO·Filed 2010·Granted Sep 11, 2012·0 cites·9 claims
- 5051US7671852B2Display device, display method, and computer productPIONEER CORP·Filed 2006·Granted Mar 2, 2010·0 cites·14 claims
Showing the top 50 of 74 patent records by PatentIndex Score.
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