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Fremont, CA, United States of America

Hmt Technology Corporation

USPTO Granted Patents = 54

Forward Citations = 1,204

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35 inventors (with patents filed for the assignee):

Brij B Lal (28 out of 28 patents)

Atef H Eltoukhy (13 out of 26 patents)

Michael A Russak (13 out of 13 patents)

4. Tadashi Shinohara (12 out of 14 patents)

5. Allen J Bourez (9 out of 16 patents)

6. Bruce M Harper (7 out of 26 patents)

7. Ming M Yang (5 out of 17 patents)

8. Sudhir S Malhotra (5 out of 13 patents)

9. James L Chao (5 out of 5 patents)

10. Yassin Mehmandoust (5 out of 7 patents)

11. Ga-Lane Chen (3 out of 275 patents)

12. Hoang Viet Nguyen (2 out of 35 patents)

13. Hsiao-Chu Tsai (2 out of 2 patents)

14. Hoa Van Do (2 out of 2 patents)

15. Chao Gao (1 out of 3 patents)

Core Competencies:

Thin Film Medium

Magnetic Recording Disk

Sputtering Method

Multilayer Magnetic Medium

Texturing Apparatus

Polishing Composition

Disc-Handling Apparatus

Coercivity Gradient

Nitrogen-Containing Barrier

Carbon Overcoat

Substrate Bias

Deposited Underlayer

54 patents: Sort by Forward Citations

1. 6358636 - Thin overlayer for magnetic recording disk (2002-03-19),

2. 6303217 - Longitudinal recording medium with a dual underlayer (2001-10-16),

3. 6274063 - Metal polishing composition (2001-08-14),

4. 6210819 - Magnetic recording media having a CrTi underlayer deposited under a substrate bias (2001-04-03),

5. 6146737 - Magnetic recording medium having a nitrogen-containing barrier layer (2000-11-14),

6. 6063248 - Process chamber isolation system in a deposition apparatus (2000-05-16),

7. 6007924 - Magnetic recording medium having a multilayer magnetic recording (1999-12-28),

8. 5978091 - Laser-bump sensor method and apparatus (1999-11-02),

9. 5964651 - Apparatus for polishing planar substrates through rotating plates (1999-10-12),

10. 5938902 - Disc-handling apparatus (1999-08-17),

11. 5922442 - Magnetic recording medium having a CoCr alloy interlayer of a low (1999-07-13),

12. 5897798 - Laser texturing apparatus employing a rotating mirror (1999-04-27),

13. 5849386 - Magnetic recording medium having a prelayer (1998-12-15),

14. 5834731 - Laser texturing apparatus with bernoulli holder (1998-11-10),

15. 5834111 - Multilayered magnetic recording medium with coercivity gradient (1998-11-10),

Company Overview

Hmt Technology Corporation, based in Fremont, CA, specializes in the development and manufacturing of advanced magnetic recording media. The company focuses on innovative technologies such as thin film mediums and multilayer magnetic media, utilizing sophisticated techniques like sputtering methods and texturing apparatus. Hmt Technology is dedicated to enhancing the performance of magnetic recording disks through its expertise in coercivity gradients and polishing compositions, positioning itself as a key player in the magnetic media industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

54 Patents

#47 in Fremont, CA

#1,547 in California

#6,568 in US

#13,140 in the World

Fremont, CA, United States of America

Hmt Technology Corporation

Forward Citations = 1,204

35 inventors:

Brij B Lal (28 out of 28 patents)

Atef H Eltoukhy (13 out of 26 patents)

Michael A Russak (13 out of 13 patents)

4. Tadashi Shinohara (12 out of 14 patents)

5. Allen J Bourez (9 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hmt Technology Corporation. Retrieved from https://idiyas.com/company/hmt-technology

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

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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