Company Filing History:

23 out of 164,108

International Business Machines Corporation

patents

1 out of 2,636

Hitachi Global Storage Technologies Netherlands B.v.

patents

where one patent can have more than one assignee

Years Active: 1995-2025

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25 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D1068560 - Vehicle (2025-04-01),

2. 6747850 - Merged magnetic head with a first pole piece notching layer (2004-06-08),

3. 6683759 - First pole piece of a write head with a notching layer in a combined magnetic head (2004-01-27),

4. 6655009 - Dual mask process for making second pole piece layer of multiple write heads with high resolution narrow track width second pole tip (2003-12-02),

5. 6570743 - READ HEAD WITH HIGH AND LOW RESISTANCE LEAD LAYERS WHEREIN THE HIGH RESISTANCE LEAD LAYERS ARE CONNECTED TO A READ SENSOR AND EXTEND PERPENDICULAR FROM AN AIR BEARING SURFACE (ABS) OF THE READ HEAD BEYOND A BACK RECESSED EDGE OF THE SENSOR WHERE THE HIGH RESISTANCE LEAD LAYERS ARE CONNECTED TO THE LOW RESISTANCE LAYERS (2003-05-27),

6. 6542331 - Magnetic head having write head with double split yoke (2003-04-01),

7. 6473276 - Merged magnetic head which includes a write head with single-sided notched first pole piece (2002-10-29),

8. 6430011 - Read head with improved lead layers at an air bearing surface (2002-08-06),

9. 6339872 - Method of making a merged magnetic head that includes a write head with single-sided notched first pole piece (2002-01-22),

10. 6325947 - Method for forming low profile multi-layer coil merged thin film magnetic head (2001-12-04),

11. 6286200 - Dual mask process for making second pole piece layer of write head with high resolution narrow track width second pole tip (2001-09-11),

12. 6221559 - Method of making crack resistant magnetic write head (2001-04-24),

13. 6201670 - Merged magnetic head that includes a write head with single-sided notched first pole piece (2001-03-13),

14. 6176005 - Method of making read head with improved lead layers (2001-01-23),

15. 6163442 - High moment bilayer first pole piece layer of a write head with high (2000-12-19),

Title: Innovations of Edward Hinpong Lee in Magnetic Head Technology

Introduction

Edward Hinpong Lee, a prolific inventor based in San Jose, CA, holds an impressive portfolio with 24 patents to his name. His inventions focus primarily on advancements in magnetic head technology, significantly impacting data storage methods and efficiency in the manufacturing process.

Latest Patents

One of his latest patents is centered around a merged magnetic head with a first pole piece notching layer. This innovative single-sided, notched write head is designed for writing narrow erase band servo tracks, improving data writing capabilities over double-notched write heads. The design allows for a narrow erase band on one side and a wide erase band on the other side of the data track, enabling more flexible spacing of the read head from adjacent tracks. Additionally, this single-sided write head can be manufactured using methods that require less processing time compared to traditional techniques. For instance, the use of a notching layer facilitates an efficient notching process, which enhances overall manufacturing throughput by reducing milling time and material consumption.

Another notable invention involves the construction of a combined magnetic head where the first pole piece incorporates a notching layer. This method significantly streamlines the notching process, allowing for better control and precision in achieving the desired track width while consuming less material during production.

Career Highlights

Edward Lee has contributed his expertise to renowned companies in the tech industry, including IBM and Hitachi Global Storage Technologies Netherlands B.V. His work in these organizations has equipped him with invaluable experience in the field of data storage technology and magnetic head design.

Collaborations

Throughout his career, Lee has collaborated with talented professionals, including Thomas Young Chang and Douglas Johnson Werner. These partnerships have furthered innovation in magnetic technologies and contributed to the advancement of the industry.

Conclusion

Overall, Edward Hinpong Lee's contributions to the field of magnetic head technology exemplify his commitment to innovation. His patents are pivotal in enhancing data writing methods and improving manufacturing efficiencies, marking him as a notable figure in the realm of inventions and technological advancements.

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