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Minneapolis, MN, United States of America

Magnetic Peripherals Inc.

USPTO Granted Patents = 175

Forward Citations = 3,233

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152 inventors (with patents filed for the assignee):

Vadim B Minuhin (11 out of 21 patents)

Allan L Holmstrand (10 out of 13 patents)

Amarjit S Brar (9 out of 12 patents)

4. Jagdish P Sharma (8 out of 8 patents)

5. Douglas J Hennenfent (7 out of 15 patents)

6. James A Duff (6 out of 9 patents)

7. Alan G Kracke (6 out of 8 patents)

8. Beat G Keel (5 out of 26 patents)

9. Donald W Janz (4 out of 12 patents)

10. Gregory S Mowry (4 out of 38 patents)

11. Lloyd C Goss (4 out of 22 patents)

12. Craig M Perlov (4 out of 4 patents)

13. Peter K George (4 out of 11 patents)

14. Louis G Gitzendanner (4 out of 6 patents)

15. Tuan P Tran (4 out of 4 patents)

Core Competencies:

Thin Film Media

Spindle Motor

Magnetic Recording

Adaptive Readback

Magnetoresistive Sensor

Data Storage

Ceramic Materials

Disk Drive

Surface Treatment

High Density Recording

Error Correction

Actuator Control

175 patents: Sort by Forward Citations

1. 5162158 - Low noise magnetic thin film longitudinal media (1992-11-10),

2. 5118577 - Plasma treatment for ceramic materials (1992-06-02),

3. 5108781 - Process for manufacturing selectively textured magnetic recording media (1992-04-28),

4. 5107378 - Adaptive magnetic recording and readback system (1992-04-21),

5. 5098874 - Improved ceramic head pad materials (1992-03-24),

6. 5093595 - Spindle motor having reduced torque ripple (1992-03-03),

7. 5062021 - Selectively textured magnetic recording media (1991-10-29),

8. 5050026 - Vertical flat coil for head actuator (1991-09-17),

9. 4987766 - Method for determining the micro impact energy capacity of the surface (1991-01-29),

10. 4982300 - Restrictively damped actuator mount for disc drives (1991-01-01),

11. 4975398 - High impact strength ceramic composite head pad material (1990-12-04),

12. 4970615 - Pole design for thin film magnetic heads (1990-11-13),

13. 4962437 - Thin film servo head employing the inactive transducer coils to cancel (1990-10-09),

14. 4949579 - Apparatus for gripping high density disk packs for precision balancing (1990-08-21),

15. 4942658 - Method for manufacturing a magnetic head core with a flux gap having a (1990-07-24),

Magnetic Peripherals Inc., based in Minneapolis, MN, specializes in the development and manufacturing of advanced magnetic recording media. The company focuses on core technologies such as thin film media, spindle motors, and magnetic recording systems, which are essential for high-performance data storage solutions. Their expertise extends to adaptive readback techniques, magnetoresistive sensors, and the use of ceramic materials in disk drives, positioning them as a key player in the evolving landscape of data storage technology.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

175 Patents

#15 in Minneapolis, MN

#59 in Minnesota

#2,297 in US

#4,740 in the World

Minneapolis, MN, United States of America

Magnetic Peripherals Inc.

Forward Citations = 3,233

152 inventors:

Vadim B Minuhin (11 out of 21 patents)

Allan L Holmstrand (10 out of 13 patents)

Amarjit S Brar (9 out of 12 patents)

4. Jagdish P Sharma (8 out of 8 patents)

5. Douglas J Hennenfent (7 out of 15 patents)

Please report any incorrect information to [email protected]

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