Inventor

Gerardo A. Bertero

Inventor

Redwood City, CA, US

Overview

1997–2021

Patent span

Physics

Primary field (CPC G)

Patents· 56 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer47%

Y10TTechnical subjects covered by former us classification13%

G11CStatic stores7%

H01LSemiconductor devices6%

H10NElectric solid-state devices not otherwise provided for5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

H01FMagnets4%

H10BElectronic memory devices4%

B29CShaping or joining of plastics3%

B82YSpecific uses or applications of nanostructures3%

PatentTitleYear

11,081,174Set/reset methods for crystallization improvement in phase change memories2021 10,868,245Phase change memory device with crystallization template and method of making the same2020 10,839,897Set/reset methods for crystallization improvement in phase change memories2020 10,788,547Voltage-controlled interlayer exchange coupling magnetoresistive memory device and method of operating thereof2020 10,700,093Ferroelectric memory devices employing conductivity modulation of a thin semiconductor material or a two-dimensional charge carrier gas and methods of operating the same2020 10,121,501Free layer magnetic reader that may have a reduced shield-to-shield spacing2018 10,115,428HAMR media structure having an anisotropic thermal barrier layer2018 10,068,601Free layer only magnetic reader that may have a reduced shield-to-shield spacing and a multilayer side bias2018 9,886,977'Dual cap layers for heat-assisted magnetic recording media'2018 9,830,936Magnetic read head with antiferromagentic layer2017 9,824,711'Soft underlayer for heat assisted magnetic recording media'2017 9,786,305'Magnetic read apparatus having multiple read sensors with reduced sensor spacing usable in two-dimensional magnetic recording applications'2017 9,786,301'Apparatuses and methods for providing thin shields in a multiple sensor array'2017 9,715,889'Read sensor having an insulating layer capable of use in two-dimensional magnetic recording'2017 9,705,072'Spin transfer torque tunneling magnetoresistive device having a laminated free layer with perpendicular magnetic anisotropy'2017 9,666,214'Free layer magnetic reader that may have a reduced shield-to-shield spacing'2017 9,431,039'Multiple sensor array usable in two-dimensional magnetic recording'2016 9,431,032'Electrical connection arrangement for a multiple sensor array usable in two-dimensional magnetic recording'2016 9,269,382'Method and system for providing a read transducer having improved pinning of the pinned layer at higher recording densities'2016 9,245,556'Disk drive employing multiple read elements to increase radial band for two-dimensional magnetic recording'2016 9,236,560'Spin transfer torque tunneling magnetoresistive device having a laminated free layer with perpendicular magnetic anisotropy'2016 9,214,172'Method of manufacturing a magnetic read head'2015 9,183,867'Systems and methods for forming implanted capping layers in magnetic media for magnetic recording'2015 9,171,575'Data storage device detecting media defects by writing opposite polarity test pattern'2015 9,135,935'Customized head gimbal assembly bonding skew angle for adjusting two-dimensional magnetic recording reader alignment'2015 9,087,527'Apparatus and method for middle shield connection in magnetic recording transducers'2015 9,070,406'Disk drive configuring one-dimensional and two-dimensional recording areas based on read element spacing'2015 9,047,880'Heat assisted magnetic recording method for media having moment keeper layer'2015 9,042,058'Shield designed for middle shields in a multiple sensor array'2015 9,034,492'Systems and methods for controlling damping of magnetic media for heat assisted magnetic recording'2015 9,001,630'Energy assisted magnetic recording medium capable of suppressing high DC readback noise'2015 8,988,812'Multi-sensor array configuration for a two-dimensional magnetic recording (TDMR) operation'2015 8,970,988'Electric gaps and method for making electric gaps for multiple sensor arrays'2015 8,908,333'Shield designed for middle shields in a multiple sensor array'2014 8,891,207'Connection schemes for a multiple sensor array usable in two-dimensional magnetic recording'2014 8,867,322'Systems and methods for providing thermal barrier bilayers for heat assisted magnetic recording media'2014 8,743,666'Energy assisted magnetic recording medium capable of suppressing high DC readback noise'2014 8,658,292'Systems and methods for controlling damping of magnetic media for assisted magnetic recording'2014 8,605,382'Disk drive to load a head to a load/unload (LUL) zone of a disk'2013 8,597,723'Perpendicular magnetic recording medium with single domain exchange-coupled soft magnetic underlayer and device incorporating same'2013 8,565,050'Heat assisted magnetic recording media having moment keeper layer'2013 8,488,276'Perpendicular magnetic recording medium with grain isolation magnetic anistropy layer'2013 8,394,243'Sputtered cobalt oxide for perpendicular magnetic recording medium with low media noise'2013 7,656,615'Perpendicular magnetic recording disk with a soft magnetic layer having a discrete track recording pattern'2010 7,608,193'Perpendicular magnetic discrete track recording disk'2009 7,549,209'Method of fabricating a magnetic discrete track recording disk'2009 7,179,549'Magnetic recording medium having novel underlayer structure'2007 7,147,790'Perpendicular magnetic discrete track recording disk'2006 7,070,870'Magnetic media with improved exchange coupling'2006 6,899,959'Magnetic media with improved exchange coupling'2005 6,893,748'Soft magnetic film for perpendicular recording disk'2005 6,730,420'Magnetic thin film recording media having extremely low noise and high thermal stability'2004 6,500,567'Ultra-thin nucleation layer for magnetic thin film media and the method for manufacturing the same'2002 6,482,505'Multi-layer texture layer'2002 6,150,015'Ultra-thin nucleation layer for magnetic thin film media and the method for manufacturing the same'2000 5,660,930'Multilayered thin films for perpendicular magnetic recording'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997Based in Stanford, CA, US· patent location history

2000–2007Patents assigned to KOMAG INC (9)· patent assignee history

2000–2021Based in Redwood City, CA, US· patent location history

2013–2018Patents assigned to WESTERN DIGITAL TECH INC (10)· patent assignee history

2013–2017Patents assigned to WD MEDIA LLC (8)· patent assignee history

2014–2018Patents assigned to WESTERN DIGITAL FREMONT LLC (10)· patent assignee history

2016–2017Patents assigned to WESTERN DIGITAL (FREMONT) LLC (8)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WESTERN DIGITAL FREMONT LLC	10	2014–2018
WESTERN DIGITAL TECH INC	10	2013–2018
KOMAG INC	9	2000–2007
WD MEDIA LLC	8	2013–2017
WESTERN DIGITAL (FREMONT) LLC	8	2016–2017

Locations

Location	Patents	Span
Redwood City, California, US	55	2000–2021
Stanford, California, US	1	1997