Yukimasa Okada

USPTO Granted Patents = 18 (Patent Applications = 3)

Average Co-Inventor Count = 4.8

ph-index = 4

Forward Citations = 55(Granted Patents)

Location History:

Odawara, JP (2014 - 2018)
Cupertino, CA (US) (2020 - 2023)

Company Filing History:

12 out of 5,310

Western Digital Technologies, Inc.

patents

6 out of 987

Hgst Netherlands, B.v.

patents

Years Active: 2014-2025

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18 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 12437780 - DFL TDMR middle shield throat height control for improved stability (2025-10-07),

2. 12340825 - DFL reader signal sidebump imbalance reduction (2025-06-24),

3. 12243565 - Dual free layer read head having recessed sidewall insulator layer and method of making thereof (2025-03-04),

4. 11557317 - Read head sensor with balanced shield design (2023-01-17),

5. 11514935 - Magnetic read sensors having stabilized upper readers, and related methods (2022-11-29),

6. 11430470 - Magnetic read sensors and related methods having a rear hard bias and no AFM layer (2022-08-30),

7. 11410690 - Two-dimensional magnetic recording reader with dual free layer magnetic tunnel junction (2022-08-09),

8. 11170808 - Dual free layer reader head with magnetic seed layer decoupled from shield (2021-11-09),

9. 11170807 - Read head sensor with balanced shield design (2021-11-09),

10. 11127422 - Magnetic read sensors and related methods having a rear hard bias and no AFM layer (2021-09-21),

11. 10777222 - Two-dimensional magnetic recording (TDMR) read head structure with different stacked sensors and disk drive incorporating the structure (2020-09-15),

12. 10008224 - Magnetic read head with floating trailing shield (2018-06-26),

13. 9099123 - Magnetic sensor having optimal free layer back edge shape and extended pinned layer (2015-08-04),

14. 9019649 - Error recovery based on applying current/voltage to a heating element of a magnetic head (2015-04-28),

15. 8976492 - Magnetic head having two domain control layers for stabilizing magnetization of the hard bias layer (2015-03-10),

Title: Innovations of Yukimasa Okada

Introduction

Yukimasa Okada is a prominent inventor based in Cupertino, California, known for his significant contributions to the field of magnetic recording technology. With a total of 18 patents to his name, Okada has made remarkable advancements that enhance the performance and stability of read heads in data storage devices.

Latest Patents

One of his latest patents is titled "DFL TDMR middle shield throat height control for improved stability." This invention relates to a dual free layer two-dimensional magnetic recording read head, which includes a unique design featuring a U-like shaped middle shield. The design optimizes the throat height to improve stability, with a width-to-throat height ratio of 6:1. Another notable patent is "DFL reader signal sidebump imbalance reduction," which addresses the issue of sidebumps in signal amplitude profiles. This innovation aims to achieve offset symmetry in the magnetic signal response, thereby enhancing reader performance.

Career Highlights

Throughout his career, Yukimasa Okada has worked with leading companies in the technology sector, including Western Digital Technologies, Inc. and HGST Netherlands, B.V. His expertise in magnetic recording technology has positioned him as a key figure in the development of advanced data storage solutions.

Collaborations

Okada has collaborated with notable professionals in his field, including Xiaoyong Liu and Daniele Mauri. These partnerships have contributed to the successful development of his innovative technologies.

Conclusion

Yukimasa Okada's contributions to magnetic recording technology through his patents and collaborations have significantly impacted the industry. His work continues to influence advancements in data storage solutions, showcasing the importance of innovation in technology.

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