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For the Inventor, By the Inventor

Saratoga, CA, United States of America

Ernesto Esteban Marinero

This inventor holds 56 USPTO granted patents and 1 published patent application, primarily in Magnetic Recording Technology (CPC class G11B). Top assignees: Hitachi Global Storage Technologies Netherlands B.v., Hgst Netherlands, B.v., International Business Machines Corporation. Active years: 1997-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ernesto Esteban Marinero. Retrieved from https://idiyas.com/inventor/ernesto-esteban-marinero

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 56 

% Patents Active = 39.3

Average Co-Inventor Count = 2.7

ph-index = 9

Forward Citations = 331(Granted Patents)

Forward Citations (Not Self Cited) = 297(Dec 10, 2025)


Inventors with similar research interests:


Company Filing History:

goldMedal39 out of 2,636 
 
Hitachi Global Storage Technologies Netherlands B.v.
 patents
silverMedal8 out of 987 
 
Hgst Netherlands, B.v.
 patents
bronzeMedal8 out of 166,409 
 
International Business Machines Corporation
 patents
4. 1 out of 52 
 
Hitachi Global Storage Technologies
 patents

Years Active: 1997-2016

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Areas of Expertise:
Magnetic Recording
Graphene Electronics
Magnetoresistive Sensors
Perpendicular Magnetic Recording
Quantum Well Structures
Magnetic Field Sensors
Patterned Media
Extraordinary Magnetoresistive
Multilayer Structures
Annealing Method
Sputtering Module
Integrated Servo
56 patents (USPTO):Explore Patents
1. 9305571 - Magnetic devices and magnetic media with graphene overcoat (2016-04-05),
2. 9147423 - Method for improving a patterned perpendicular magnetic recording disk with annealing (2015-09-29),
3. 9127365 - Generation of multilayer structures in a single sputtering module of a multi-station magnetic recording media fabrication tool (2015-09-08),
4. 9040180 - Perpendicular magnetic recording disk with multiple magnetic layers and intermediate dual nucleation films for control of grain size (2015-05-26),
5. 8650749 - Method for manufacturing graphene electronics (2014-02-18),
6. 8618587 - Quantum well graphene structure formed on a dielectric layer having a flat surface (2013-12-31),
7. 8587897 - Magnetic field sensor (2013-11-19),
8. 8541116 - Patterned perpendicular magnetic recording disk drive and medium with patterned exchange bridge layer below the data islands (2013-09-24),
9. 8320232 - Patterned perpendicular magnetic recording medium with multiple magnetic layers and interlayers (2012-11-27),
10. 8274763 - Magnetoresistive sensor having a quantum well structure and a P-doped trapping layer to prevent surface charge carriers from migrating to the quantum well structure (2012-09-25),
11. 8268461 - Patterned perpendicular magnetic recording medium with ultrathin oxide film and reduced switching field distribution (2012-09-18),
12. 8227842 - Quantum well graphene structure (2012-07-24),
13. 8193455 - Graphene electronics fabrication (2012-06-05),
14. 8189302 - Magnetic field sensor with graphene sense layer and ferromagnetic biasing layer below the sense layer (2012-05-29),
15. 8166633 - Method for manufacturing an extraordinary magnetoresistive (EMR) device with novel lead structure (2012-05-01),

Title: The Innovative Contributions of Ernesto Esteban Marinero

Introduction

Ernesto Esteban Marinero is a prolific inventor based in Saratoga, California, who has made significant contributions to the field of magnetic devices and media technologies. With an impressive portfolio of 56 patents, Marinero's work focuses on advancing the capabilities and efficiencies of magnetic recording systems.

Latest Patents

Marinero's recent patents showcase his expertise in magnetic technologies, particularly utilizing graphene in various applications. One such patent details a magnetic disk that incorporates a recording layer topped with a graphene overcoat. This innovative design may include a nucleation layer that enhances the performance between the recording layer and the graphene layer. Additionally, his methods involve forming a nucleation layer above a magnetic layer and utilizing SiC to create a robust graphene layer through controlled heating processes. Another noteworthy patent involves improving patterned perpendicular magnetic recording disks through a meticulous annealing method which enhances coercivity, saturation magnetization, and thermal stability, demonstrating his commitment to innovation in magnetic data storage.

Career Highlights

Throughout his career, Marinero has collaborated with leading companies in the technology sector, including Hitachi Global Storage Technologies B.V. and International Business Machines Corporation (IBM). His work with these esteemed organizations has allowed him to push the boundaries of what is possible in magnetic storage technologies.

Collaborations

Marinero's journey has also been marked by collaborations with talented professionals such as Bruce Alvin Gurney and Brian Rodrick York. Working alongside such esteemed colleagues has contributed to his success and the evolution of his inventions, fostering an environment of creativity and innovation.

Conclusion

Ernesto Esteban Marinero continues to be a significant figure in the realm of magnetic technologies, with his numerous patents reflecting his dedication to advancing the field. His inventive spirit and collaborative efforts ensure that he remains at the forefront of innovation, shaping the future of data storage solutions.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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