logo

For the Inventor, By the Inventor

San Jose, CA, United States of America

James Hsi-Tang Lee

This inventor holds 12 USPTO granted patents. Top assignee: International Business Machines Corporation. Active years: 1976-1999.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James Hsi-Tang Lee. Retrieved from https://idiyas.com/inventor/james-hsi-tang-lee

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

USPTO Granted Patents = 12

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 8

Forward Citations = 248(Granted Patents)


Location History:

  • Wappingers Falls, NY (US) (1976 - 1979)
  • San Jose, CA (US) (1987 - 1999)

Company Filing History:

goldMedal12 out of 166,409 
 
International Business Machines Corporation
 patents

Years Active: 1976-1999

Loading Chart...
12 patents (USPTO):Explore Patents
1. 5926349 - Simplified magnetic head with common write gap/first insulation layer (1999-07-20),
2. 5779923 - Simplified method of making merged MR head (1998-07-14),
3. 5700380 - Simplified method of making vias for merged MR head (1997-12-23),
4. 5664316 - Method of manufacturing magnetoresistive read transducer having a (1997-09-09),
5. 5435053 - Simplified method of making merged MR head (1995-07-25),
6. 5275695 - Process for generating beveled edges (1994-01-04),
7. 4940511 - Method for making a magnetoresistive read transducer (1990-07-10),
8. 4879619 - Magnetoresistive read transducer (1989-11-07),
9. 4875124 - Thin film magnetic heads with thermally crosslinked insulation (1989-10-17),
10. 4690838 - Process for enhancing the resistance of a resist image to reactive ion (1987-09-01),
11. 4144493 - Integrated circuit test structure (1979-03-13),
12. 3983479 - Electrical defect monitor structure (1976-09-28),

Title: Innovations of James Hsi-Tang Lee

Introduction

James Hsi-Tang Lee is a prominent inventor based in San Jose, California. He has made significant contributions to the field of magnetic head technology, holding a total of 12 patents. His work has been instrumental in advancing the manufacturing processes of merged MR heads, which are crucial components in data storage devices.

Latest Patents

Among his latest patents, Lee has developed a "Simplified magnetic head with common write gap/first insulation layer." This innovative method enhances the manufacturing of merged MR heads by utilizing a photoresist mask with precisely sized openings. This allows for the simultaneous etching of numerous vias to various depths over a set time period. After the vias are formed, a single photoresist mask is used to pattern gap layers and a first shield layer to achieve the desired configuration. The process includes soft baking and hard baking of double insulation layers to ensure a smooth configuration, minimizing flux leakage and saturation issues.

Another notable patent is the "Simplified method of making merged MR head," which follows a similar approach to the previous patent. This method also employs a photoresist mask for etching and patterning, ensuring that the final product maintains a smooth configuration, which is essential for optimal performance.

Career Highlights

James Hsi-Tang Lee is currently employed at International Business Machines Corporation (IBM), where he continues to innovate in the field of magnetic technology. His expertise and dedication have led to numerous advancements in the design and manufacturing of magnetic heads.

Collaborations

Lee has collaborated with several talented individuals in his field, including Mohamad Towfik Krounbi and Robert Fontana. These collaborations have further enriched his work and contributed to the success of his projects.

Conclusion

James Hsi-Tang Lee's contributions to the field of magnetic head technology are noteworthy and impactful. His innovative patents and career at IBM highlight his role as a leading inventor in this specialized area.

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]
Loading…