Inventor · disambiguated record
Gary W. Calfee
Also filed as: CALFEE GARY W
19 granted patents·2 pending applications·131 citations·filing 1997–2023
93Inventor score
Top patents by PatentIndex Score
21 records- 0196US11942122B1Determining absolute position on HDD spiral patterns using dual TDMR readersTOSHIBA KK·Filed 2023·Granted Mar 26, 2024·6 cites·20 claims
- 0290US11205450B2Split-actuator disk drive that uses microactuator feedforward to reduce effects of cross-actuator couplingTOSHIBA KK·Filed 2020·Granted Dec 21, 2021·3 cites·20 claims
- 0390US11189310B1Split-actuator disk drive that uses microactuator feedforward to reduce effects of cross-actuator couplingTOSHIBA KK·Filed 2020·Granted Nov 30, 2021·3 cites·20 claims
- 0488US5982571ADisk drive with closed loop commutator and actuator oscillatorQUANTUM CORP·Filed 1997·Granted Nov 9, 1999·61 cites·61 claims
- 0585US9865290B1Single surface in-drive eraseTOSHIBA KK·Filed 2017·Granted Jan 9, 2018·9 cites·20 claims
- 0681US11688423B2Split-actuator disk drive that uses microactuator feedforward to reduce effects of cross-actuator couplingTOSHIBA KK·Filed 2021·Granted Jun 27, 2023·1 cites·20 claims
- 0781US7215498B2Dynamic stroke optimization in the self servo-write processMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 8, 2007·15 cites·59 claims
- 0880US10665257B2Parallel micro-actuator SSW writingTOSHIBA KK·Filed 2018·Granted May 26, 2020·4 cites·6 claims
- 0980US7274527B2Method for optimizing dynamic stroke in the self servo-write processMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 25, 2007·14 cites·41 claims
- 1074US7095580B2Methods to determine gross and fine positioning on a reference surface of a mediaMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 22, 2006·10 cites·21 claims
- 1171US11960760B2Seek scheduling in a split actuator driveTOSHIBA KK·Filed 2023·Granted Apr 16, 2024·0 cites·20 claims
- 1271US11036436B2Seek scheduling in a split actuator driveTOSHIBA KK·Filed 2019·Granted Jun 15, 2021·1 cites·17 claims
- 1359US11942123B1Measuring VCM radial location using flex circuit shape during spiral writeTOSHIBA KK·Filed 2023·Granted Mar 26, 2024·0 cites·20 claims
- 1458US2021096764A1Seek scheduling in a split actuator driveTOSHIBA KK·Filed 2019·Application pending·0 cites
- 1557US9824708B2Spiral write launch while servoing on reference guide spiralsTOSHIBA KK·Filed 2015·Granted Nov 21, 2017·1 cites·20 claims
- 1657US7092182B2Marker-zone to determine gross positioning on a reference surface of a mediaMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 15, 2006·3 cites·23 claims
- 1756US11227631B2Parallel micro-actuator SSW writingTOSHIBA KK·Filed 2020·Granted Jan 18, 2022·0 cites·18 claims
- 1850US11508403B1Reducing the effect of actuator cross-coupling in split actuator drivesTOSHIBA KK·Filed 2021·Granted Nov 22, 2022·0 cites·16 claims
- 1948US2008239556A1Linearizing position error signal using spiral servo informationTOSHIBA AMERICA INF SYST·Filed 2007·Application pending·0 cites
- 2037US9691421B2Writing spirals with accurate slope on a disk drive mediaTOSHIBA KK·Filed 2015·Granted Jun 27, 2017·0 cites·21 claims
- 2137US9311941B1Erase coarse guide spiral-based in-drive erase processTOSHIBA KK·Filed 2015·Granted Apr 12, 2016·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →