Calvin S Lo

This inventor holds 193 USPTO granted patents and 3 published patent applications, primarily in Magnetic Tape Technology (CPC class G11B5-00813). Top assignees: International Business Machines Corporation, Globalfoundries Inc.. Active years: 2002-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Calvin S Lo. Retrieved from https://idiyas.com/inventor/calvin-s-lo

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

USPTO Granted Patents = 193 (Patent Applications = 3)

% Patents Active = 42.5

Average Co-Inventor Count = 2.7

ph-index = 16

Forward Citations = 1,024(Granted Patents)

Forward Citations (Not Self Cited) = 462(Dec 10, 2025)

Inventors with similar research interests:

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Location History:

San Jose, CA (US) (2013)
Saratoga, CA (US) (2002 - 2022)

Company Filing History:

192 out of 166,351

International Business Machines Corporation

Years Active: 2002-2022

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Areas of Expertise:

Magnetic Tape

Tape Head Module

Transducer Structure

Protective Layer

Thermal Management

Magnetoresistive Sensor

Write Transducer

Thin Film

Electrical Shielding

Air Bearing

Wrap Angle

Flexible Media

193 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11488629 - Protective layer for mitigating protruding defects in magnetic tape recording media (2022-11-01),

2. 11393501 - Protective layer for mitigating protruding defects in magnetic tape recording media (2022-07-19),

3. 11322175 - Protective layer for mitigating protruding defects in magnetic tape recording media (2022-05-03),

4. 11189306 - Reduced-stress tape head module (2021-11-30),

5. 11114117 - Process for manufacturing magnetic head having a servo read transducer structure with dielectric gap liner and a data read transducer structure with an embedded wear layer between thin and thick shield portions (2021-09-07),

6. 11074930 - Read transducer structure having an embedded wear layer between thin and thick shield portions (2021-07-27),

7. 11056132 - Multichannel tape head module having thermally settable transducer pitch and method of setting pitch thereof (2021-07-06),

8. 11037587 - Tunnel magnetoresistive sensor having conductive ceramic layers (2021-06-15),

9. 11031031 - Forming recessed portions in a tape head module to provide an air bearing between a tape medium and a tape bearing surface of the tape head module (2021-06-08),

10. 10997994 - Current-perpendicular-to-plane (CPP) read transducer structure having flux guide and pinned soft bias layer for stabilizing sensor and flux guide (2021-05-04),

11. 10984823 - Write transducers having high moment layer (2021-04-20),

12. 10971176 - Tunnel magnetoresistive sensor with adjacent gap having chromium alloy seed layer and refractory material layer (2021-04-06),

13. 10930306 - Magnetic measurement of head span spacing (2021-02-23),

14. 10902868 - Tape head module having recessed portion to provide an air bearing between a tape medium and a tape bearing surface of the module (2021-01-26),

15. 10902867 - Interconnect die for multichannel tape head assembly (2021-01-26),

Title: Calvin S Lo: Innovating Magnetic Tape Recording Media

Introduction:

Calvin S Lo is a prolific inventor hailing from Saratoga, CA, whose expertise lies in the field of magnetic tape recording media. With an impressive portfolio of 193 patents, Lo has made significant contributions to the development of protective layers for mitigating protruding defects in magnetic tape recording media. This article explores Lo's latest patents, career highlights, and notable collaborations.

Latest Patents:

One of Lo's recent patents, "Protective layer for mitigating protruding defects in magnetic tape recording media," showcases his expertise in this field. This patent introduces a method for forming a magnetic recording medium that involves the creation of a protective layer with specific materials to address protruding defects. By incorporating a magnetic layer above an underlayer, Lo's invention offers improved performance and reliability in tape recording media.

Career Highlights:

Throughout his career, Lo has worked with renowned companies such as IBM (International Business Machines Corporation) and GlobalFoundries Inc. His collaborations with these industry giants have further fueled his innovative pursuits. Lo's continuous dedication to improving magnetic tape recording media has earned him recognition as a prominent figure in the field.

Collaborations:

Lo's work has not only been individualistic but has also involved collaboration with talented individuals. Notably, Lo has collaborated with esteemed colleagues such as Robert G Biskeborn and Jason Liang. These collaborations have further enriched Lo's industry knowledge and have led to groundbreaking advancements in magnetic tape recording media.

Conclusion:

Calvin S Lo's remarkable contributions to the field of magnetic tape recording media are evident through his extensive patent portfolio, including his recent invention focused on mitigating protruding defects. His work has not only been instrumental in advancing the technology but has also made a significant impact on the industry. With a career that includes working with industry-leading companies and collaborating with talented individuals, Lo continues to shape the future of magnetic tape recording media.

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]

3 patents pending: