Inventor · disambiguated record
Masahito Kobayashi
Also filed as: KOBAYASHI MASAHITO
71 granted patents·5 pending applications·1,025 citations·filing 1981–2025
99Inventor score
Files withWESTERN DIGITAL TECH INC20HITACHI LTD18TOKYO ELECTRON LTD18NONAKA KEIICHIRO6HITACHI GLOBAL STORAGE TECH3
Top patents by PatentIndex Score
76 records- 0198US10991390B2Head assembly with suspension system for a tape embedded driveWESTERN DIGITAL TECH INC·Filed 2019·Granted Apr 27, 2021·40 cites·14 claims
- 0296US7009415B2Probing method and probing apparatusTOKYO ELECTRON LTD·Filed 2004·Granted Mar 7, 2006·117 cites·12 claims
- 0394US11688420B2Hybrid dedicated and dynamic servo for tapeWESTERN DIGITAL TECH INC·Filed 2021·Granted Jun 27, 2023·4 cites·19 claims
- 0494US11662367B2Inspection apparatus and inspection methodTOKYO ELECTRON LTD·Filed 2021·Granted May 30, 2023·2 cites·7 claims
- 0594US11393498B2Head assembly with suspension system for a tape embedded driveWESTERN DIGITAL TECH INC·Filed 2021·Granted Jul 19, 2022·4 cites·20 claims
- 0694US11340283B2Testing deviceTOKYO ELECTRON LTD·Filed 2019·Granted May 24, 2022·9 cites·9 claims
- 0794US9792938B1Data storage device communicating servo information between servo channels of multiple actuatorsWESTERN DIGITAL TECH INC·Filed 2017·Granted Oct 17, 2017·19 cites·18 claims
- 0894US4511990ADigital processor with floating point multiplier and adder suitable for digital signal processingHITACHI LTD·Filed 1981·Granted Apr 16, 1985·126 cites·11 claims
- 0992US11990164B1Tape head assembly with single beam, actuator and spring adaptorWESTERN DIGITAL TECH INC·Filed 2023·Granted May 21, 2024·3 cites·22 claims
- 1092US6933736B2ProberTOKYO ELECTRON LTD·Filed 2003·Granted Aug 23, 2005·62 cites·7 claims
- 1192US6407876B1Magnetic disk apparatus having an accelerometer for detecting acceleration in the positioning direction of the magnetic headHITACHI LTD·Filed 2001·Granted Jun 18, 2002·37 cites·8 claims
- 1290US10950265B1Data storage device configured with manufacture PCB for concurrent write/read operationWESTERN DIGITAL TECH INC·Filed 2020·Granted Mar 16, 2021·6 cites·20 claims
- 1390US10410657B1Data storage device employing nominal and adaptive multi-actuator decouplerWESTERN DIGITAL TECH INC·Filed 2019·Granted Sep 10, 2019·9 cites·11 claims
- 1488US6724563B2Two-stage actuator with sensitivity function preventing disturbances at all frequenciesHITACHI LTD·Filed 2001·Granted Apr 20, 2004·29 cites·6 claims
- 1588US5936792APositioning adaptive control method and positioning device as well as information storage deviceHITACHI LTD·Filed 1996·Granted Aug 10, 1999·55 cites·34 claims
- 1687US9934803B1Data storage device attenuating multiple actuator coupling disturbanceWESTERN DIGITAL TECH INC·Filed 2017·Granted Apr 3, 2018·8 cites·24 claims
- 1787US6898039B2Positioning control device for two-stage actuatorHITACHI LTD·Filed 2003·Granted May 24, 2005·22 cites·9 claims
- 1887US6624982B2Magnetic disk recording apparatusHITACHI LTD·Filed 2001·Granted Sep 23, 2003·25 cites·25 claims
- 1986US7173790B2Magnetic disk apparatus with dual stage actuatorHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Feb 6, 2007·8 cites·18 claims
- 2084US8619379B2Patterned media with an alternating series of concentric servo zones and overlap zonesNONAKA KEIICHIRO·Filed 2011·Granted Dec 31, 2013·8 cites·35 claims
- 2183US5404255ADisk apparatus and its control methodHITACHI LTD·Filed 1993·Granted Apr 4, 1995·34 cites·22 claims
- 2281US6777968B1Probing method and probing apparatus in which steady load is applied to main chuckTOKYO ELECTRON LIMTED·Filed 2000·Granted Aug 17, 2004·28 cites·11 claims
- 2380US8630051B2Patterned media with an alternating series of concentric servo zones and overlap zonesNONAKA KEIICHIRO·Filed 2011·Granted Jan 14, 2014·6 cites·35 claims
- 2480US6483659B1Disk drivesHITACHI LTD·Filed 1999·Granted Nov 19, 2002·38 cites·6 claims
- 2579US7465218B2Probe polishing method and probe polishing memberTOKYO ELECTRON LTD·Filed 2006·Granted Dec 16, 2008·5 cites·19 claims
- 2678US11935562B2Magnetic recording device having redundant servo readers and method for using sameWESTERN DIGITAL TECH INC·Filed 2022·Granted Mar 19, 2024·1 cites·23 claims
- 2778US6297656B1Probe-test method and proberTOKYO ELECTRON LTD·Filed 1998·Granted Oct 2, 2001·58 cites·12 claims
- 2877US6707633B2Magnetic disk device including coarse and micro actuatorsHITACHI LTD·Filed 2001·Granted Mar 16, 2004·12 cites·6 claims
- 2976US11417360B1Tape support system with a load-unload mechanismWESTERN DIGITAL TECH INC·Filed 2021·Granted Aug 16, 2022·1 cites·20 claims
- 3076US11295773B1Data storage device demodulating digital data based on number of servo stripes in servo frameWESTERN DIGITAL TECH INC·Filed 2021·Granted Apr 5, 2022·1 cites·24 claims
- 3176US10176835B1Data storage device employing predictive oversampling for servo controlWESTERN DIGITAL TECH INC·Filed 2018·Granted Jan 8, 2019·3 cites·25 claims
- 3275US7397257B2Detection method/device of probe's tip location using a transparent film attached to a substate having plurality of electrodes, and a storage medium for implementing the methodTOKYO ELECTRON LTD·Filed 2007·Granted Jul 8, 2008·5 cites·16 claims
- 3375US4620292AArithmetic logic unit for floating point data and/or fixed point dataHITACHI LTD·Filed 1985·Granted Oct 28, 1986·45 cites·20 claims
- 3474US6920009B2Magnetic disk apparatus and position control method for magnetic head slider thereofHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jul 19, 2005·9 cites·11 claims
- 3573US11169204B2Temperature control device, temperature control method, and inspection apparatusTOKYO ELECTRON LTD·Filed 2019·Granted Nov 9, 2021·1 cites·15 claims
- 3673US6153997ADisk apparatus and method of controlling disk apparatusHITACHI LTD·Filed 1999·Granted Nov 28, 2000·28 cites·8 claims
- 3772US8531794B2Patterned media with an alternating series of concentric servo zones and overlap zonesNONAKA KEIICHIRO·Filed 2011·Granted Sep 10, 2013·3 cites·24 claims
- 3871US9214304B2Switch unitMATSUMOTO TAKUYA·Filed 2011·Granted Dec 15, 2015·3 cites·7 claims
- 3970US10896695B1Data storage device comprising dual channel preamp circuitWESTERN DIGITAL TECH INC·Filed 2020·Granted Jan 19, 2021·1 cites·13 claims
- 4070US8670207B2Servo pattern compatible with planarization constraints of patterned media and use of a single master templateNONAKA KEIICHIRO·Filed 2011·Granted Mar 11, 2014·2 cites·20 claims
- 4168US8625219B2Patterned media with an alternating series of concentric servo zones and overlap zonesNONAKA KEIICHIRO·Filed 2011·Granted Jan 7, 2014·2 cites·35 claims
- 4268US7151644B2Magnetic disk apparatus and position control method for magnetic head slider thereofHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Dec 19, 2006·1 cites·11 claims
- 4367US5986845AApparatus for positioning magnetic head and method of the sameHITACHI LTD·Filed 1997·Granted Nov 16, 1999·20 cites·19 claims
- 4467US2025379097A1Stage, inspection device, and method of operating stageTOKYO ELECTRON LTD·Filed 2025·Application pending·0 cites
- 4566US10665255B1Data storage device disabling swinging of spindle motor speed based on PESWESTERN DIGITAL TECH INC·Filed 2019·Granted May 26, 2020·2 cites·19 claims
- 4666US6335845B1Magnetic disk apparatus having an accelerometer for detecting acceleration in the positioning direction of the magnetic headHITACHI LTD·Filed 1996·Granted Jan 1, 2002·19 cites·8 claims
- 4765US12259419B2Test device and probe polishing methodTOKYO ELECTRON LTD·Filed 2021·Granted Mar 25, 2025·0 cites·5 claims
- 4864US10650992B2Switch deviceTOYO DENSO KK·Filed 2018·Granted May 12, 2020·1 cites·8 claims
- 4964US8526132B2Servo patterning compatible with planarization of patterned magnetic disksALBRECHT THOMAS R·Filed 2010·Granted Sep 3, 2013·1 cites·20 claims
- 5063US6819522B2Positioning control apparatusHITACHI LTD·Filed 2002·Granted Nov 16, 2004·5 cites·16 claims
Showing the top 50 of 76 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →