Company Filing History:

25 out of 32

Censtor Corporation

patents

2 out of 8,679

Seagate Technology Incorporated

patents

Years Active: 1983-2006

where 'Filed Patents' based on already Granted Patents

27 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 7095585 - Hard disk drive for perpendicular recording with transducer having submicron gap between pole tips (2006-08-22),

2. 6804085 - Hard drive system interface between a disk surface and a transducer contacting the surface during communication (2004-10-12),

3. 6600631 - Transducer/flexure/conductor structure for electromagnetic read/write system (2003-07-29),

4. 6535361 - Contact planar magnetoresistive head (2003-03-18),

5. 6493191 - Planar magnetic ring head for contact recording with a rigid disk (2002-12-10),

6. 6411470 - Durable, low-vibration, dynamic-contact hard disk drive system (2002-06-25),

7. 6320725 - Hard disk drive having ring head with predominantly perpendicular media fields (2001-11-20),

8. 6212047 - Hard disk drive with magnetoresistive head and perpendicular media (2001-04-03),

9. 6198607 - Contact planar magnetoresistive head (2001-03-06),

10. 6160685 - Hard disk drive with lightly contacting head (2000-12-12),

11. 5949612 - Low friction sliding hard disk drive system (1999-09-07),

12. 5885131 - Interactive device for lapping transducers (1999-03-23),

13. 5632669 - Interactive method for lapping transducers (1997-05-27),

14. 5557488 - Gimbaled micro-head/flexure/conductor assembly and system (1996-09-17),

15. 5490027 - Gimbaled micro-head/flexure/conductor assembly and system (1996-02-06),

Title: **Harold J Hamilton: A Pioneer in Hard Disk Drive Innovation**

Introduction

Harold J Hamilton, based in Santa Clara, CA, has made significant contributions to the field of data storage, particularly through his innovative work on hard disk drives. With an impressive portfolio of 27 patents, Hamilton has played a vital role in enhancing the efficiency and performance of information storage systems.

Latest Patents

Among Hamilton's noteworthy patents is the design of a hard disk drive for perpendicular recording. This invention features a transducer with a loop of ferromagnetic material and pole tips separated by a nonferromagnetic gap. The small separation allows for a larger perpendicular magnetic field component during writing, which favors perpendicular recording over the traditional longitudinal method. The alignment of the medium's easy axis of magnetization also supports this innovative approach.

Another of his significant patents involves a unique interface between a disk surface and the transducer during communication. This electromagnetic read/write system is characterized by a contact interface formed by a pole-structure-carrying wear pad. The innovative design, which includes a buffed and generally planarized topography on the recording surface, results in enhanced durability and longevity during long-term read/write operations.

Career Highlights

Throughout his career, Harold J Hamilton has worked with prominent companies in the tech industry, including Censtor Corporation and Seagate Technology Incorporated. His work with these organizations has solidified his reputation as a leading innovator in the hard disk drive sector.

Collaborations

Hamilton has collaborated with notable colleagues, including Timothy W Martin and Robert D Hempstead, further amplifying the impact of his work in the realm of data storage technology. These collaborations have led to advancements that have shaped the current landscape of hard drive technology.

Conclusion

Harold J Hamilton's ongoing commitment to innovation is evident in his extensive patent portfolio and collaborative achievements. His contributions continue to influence the design and functionality of hard disk drives, ensuring that data storage systems remain at the forefront of technological advancements. Through his inventive spirit, Hamilton has left a lasting mark on the industry, paving the way for future developments.

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