Inventor · disambiguated record
Yuji Sakai
Also filed as: SAKAI YUJI · SUNAHARA TOSHITAKA
93 granted patents·33 pending applications·987 citations·filing 1978–2025
99Inventor score
Top patents by PatentIndex Score
126 records- 0197US7203015B2Method and apparatus for decoding sync marks in a diskTOSHIBA KK·Filed 2004·Granted Apr 10, 2007·135 cites·17 claims
- 0296US7872829B2Method and apparatus for offset control in a disk driveTOSHIBA KK·Filed 2008·Granted Jan 18, 2011·29 cites·5 claims
- 0396US7257172B2Signal processing device utilizing partial response maximum likelihood detectionTOSHIBA KK·Filed 2003·Granted Aug 14, 2007·71 cites·15 claims
- 0495US11273464B2Substrate processing apparatusTOKYO ELECTRON LTD·Filed 2020·Granted Mar 15, 2022·10 cites·12 claims
- 0592US5010430AHead slider arrangement for magnetic disk storage deviceTOSHIBA KK·Filed 1988·Granted Apr 23, 1991·57 cites·21 claims
- 0687US9620394B2Liquid treatment apparatusTOKYO ELECTRON LTD·Filed 2014·Granted Apr 11, 2017·8 cites·9 claims
- 0787US7499340B2Semiconductor memory device and defect remedying method thereofHITACHI LTD·Filed 2008·Granted Mar 3, 2009·8 cites·18 claims
- 0887US7489468B2Method and apparatus for head positioning control in a disk driveTOSHIBA KK·Filed 2006·Granted Feb 10, 2009·8 cites·11 claims
- 0987US7460324B2Head amplifier circuit with function for degaussing residual magnetism of recording headTOSHIBA KK·Filed 2005·Granted Dec 2, 2008·9 cites·2 claims
- 1087US7411753B2Method and apparatus for magnetization test of write head in a disk driveTOSHIBA KK·Filed 2005·Granted Aug 12, 2008·8 cites·4 claims
- 1187US4255682AMultipolar resolverOKUMA MACHINERY WORKS LTD·Filed 1979·Granted Mar 10, 1981·38 cites·6 claims
- 1286US12014335B2Maintenance apparatus, maintenance method, and recording medium having recorded thereon maintenance programADVANTEST CORP·Filed 2022·Granted Jun 18, 2024·1 cites·18 claims
- 1386US7057844B2Method and apparatus for head positioning control in a disk driveTOSHIBA KK·Filed 2005·Granted Jun 6, 2006·7 cites·9 claims
- 1486US4200051ACollapsible tube and method of manufactureKYODO PRINTING CO LTD·Filed 1978·Granted Apr 29, 1980·29 cites·12 claims
- 1585US6515913B2Semiconductor memory device and defect remedying method thereofHITACHI LTD·Filed 2001·Granted Feb 4, 2003·22 cites·5 claims
- 1684US6335884B1Semiconductor memory device and defect remedying method thereofHITACHI LTD·Filed 2000·Granted Jan 1, 2002·22 cites·5 claims
- 1783US8723618B2Power combiner/distributor and transmitter using the power combiner/distributorHIROTA AKIMICHI·Filed 2011·Granted May 13, 2014·10 cites·17 claims
- 1882US6212089B1Semiconductor memory device and defect remedying method thereofHITACHI LTD·Filed 2000·Granted Apr 3, 2001·18 cites·5 claims
- 1981US7203101B2Semiconductor memory device and defect remedying method thereofHITACHI ULSI SYS CO LTD·Filed 2006·Granted Apr 10, 2007·5 cites·6 claims
- 2079US5305159AMagnetic disk apparatusTOSHIBA KK·Filed 1991·Granted Apr 19, 1994·30 cites·7 claims
- 2178US7920355B2Method and apparatus for reproducing servo data from a discrete track media in a disk driveTOSHIBA KK·Filed 2009·Granted Apr 5, 2011·3 cites·7 claims
- 2278US7345929B2Semiconductor memory device and defect remedying method thereofHITACHI LTD·Filed 2007·Granted Mar 18, 2008·4 cites·10 claims
- 2376US7307224B2Semiconductor device having a mount boardELPIDA MEMORY INC·Filed 2006·Granted Dec 11, 2007·6 cites·9 claims
- 2476US5602771ASemiconductor memory device and defect remedying method thereofHITACHI LTD·Filed 1993·Granted Feb 11, 1997·43 cites·11 claims
- 2576US5579256ASemiconductor memory device and defect remedying method thereofHITACHI LTD·Filed 1995·Granted Nov 26, 1996·45 cites·6 claims
- 2675US9835845B2Scanning endoscopeOLYMPUS CORP·Filed 2016·Granted Dec 5, 2017·2 cites·8 claims
- 2775US2025331703A1Medical manipulator and medical manipulator systemOLYMPUS CORP·Filed 2025·Application pending·0 cites
- 2875US2025331941A1Medical manipulator and medical manipulator systemOLYMPUS CORP·Filed 2025·Application pending·0 cites
- 2974US6657901B2Semiconductor device formed in a rectangle region on a semiconductor substrate including a voltage generating circuitHITACHI LTD·Filed 2002·Granted Dec 2, 2003·11 cites·41 claims
- 3073US9629517B2Scanning endoscope systemOLYMPUS CORP·Filed 2014·Granted Apr 25, 2017·7 cites·6 claims
- 3173US5331492AMagnetic disk system having a magnetoresistive head provided thereinTOSHIBA KK·Filed 1991·Granted Jul 19, 1994·23 cites·4 claims
- 3273US4851933AMagnetic disk apparatus having magnetic head with pre-erase gapTOSHIBA KK·Filed 1987·Granted Jul 25, 1989·19 cites·12 claims
- 3371US9543646B2Antenna control device and antenna apparatusMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Jan 10, 2017·3 cites·8 claims
- 3471US8767023B2Scanning image display device and method of controlling the sameSAKAI YUJI·Filed 2012·Granted Jul 1, 2014·3 cites·14 claims
- 3571US7893770B2Power amplification deviceMITSUBISHI ELECTRIC CORP·Filed 2007·Granted Feb 22, 2011·7 cites·2 claims
- 3671US6898130B2Semiconductor memory device and defect remedying method thereofHITACHI VLSI ENG·Filed 2003·Granted May 24, 2005·9 cites·6 claims
- 3770US7016236B2Semiconductor memory device and defect remedying method thereofHITACHI ULSI SYS CO LTD·Filed 2005·Granted Mar 21, 2006·2 cites·10 claims
- 3870US6456160B1Feedforward amplifierMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Sep 24, 2002·18 cites·8 claims
- 3970US5555142AMagnetic disk systemTOSHIBA KK·Filed 1994·Granted Sep 10, 1996·20 cites·14 claims
- 4069US8882658B2Endoscope systemOLYMPUS MEDICAL SYSTEMS CORP·Filed 2013·Granted Nov 11, 2014·4 cites·4 claims
- 4169US7009792B2Method and apparatus for data reproducing in a disk driveTOSHIBA KK·Filed 2003·Granted Mar 7, 2006·7 cites·12 claims
- 4269US6963459B2Method and apparatus for optimizing auto gain control of read channel in a disk driveTOSHIBA KK·Filed 2002·Granted Nov 8, 2005·7 cites·9 claims
- 4369US6049500ASemiconductor memory device and defect remedying method thereofHITACHI LTD·Filed 1998·Granted Apr 11, 2000·28 cites·10 claims
- 4468US10234532B2Tracking system, tracking method, and non-transitory computer-readable recording medium storing programMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Mar 19, 2019·4 cites·9 claims
- 4568US8740092B2IC tag and electronic apparatusSAKAI YUJI·Filed 2012·Granted Jun 3, 2014·2 cites·14 claims
- 4668US5021898AHead positioning control method and apparatusTOSHIBA KK·Filed 1988·Granted Jun 4, 1991·15 cites·15 claims
- 4767US9251456B2RFID information medium and article to which the medium is attachedOMURA KUNIO·Filed 2007·Granted Feb 2, 2016·4 cites·7 claims
- 4867US8760983B2Information recording apparatus, information playback apparatus, and formatting methodTOSHIBA KK·Filed 2013·Granted Jun 24, 2014·2 cites·11 claims
- 4966US9215969B2Scanning endoscope system and method of operation of scanning endoscope systemOLYMPUS MEDICAL SYSTEMS CORP·Filed 2014·Granted Dec 22, 2015·3 cites·6 claims
- 5066US8120712B2Channel selection in a receiver for terrestrial digital television broadcastingSAKAI YUJI·Filed 2007·Granted Feb 21, 2012·2 cites·6 claims
Showing the top 50 of 126 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →