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Masato Shiimoto

This inventor holds 53 USPTO granted patents and 6 published patent applications, primarily in Spintronic Devices. Top assignees: Hgst Netherlands, B.v., Western Digital Technologies, Inc., Hitachi, Ltd.. Active years: 2012-2026.

USPTO Granted Patents = 53 (Patent Applications = 6)

% Patents Active = 73.6

Average Co-Inventor Count = 3.9

ph-index = 17

Forward Citations = 730(Granted Patents)

Forward Citations (Not Self Cited) = 650(Dec 10, 2025)

Location History:

Odawara, JP (2012 - 2016)
Kanagawa, JP (2012 - 2016)
Hiratsuka, JP (2016)
Fujisawa, JP (2016 - 2021)

Company Filing History:

28 out of 987

Hgst Netherlands, B.v.

patents

11 out of 5,424

Western Digital Technologies, Inc.

Hitachi Global Storage Technologies Netherlands B.v.

patents

5. 1 out of 2

Hsgt Netherlands B.v.

patents

Years Active: 2012-2026

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Areas of Expertise:

Spintronic Device

Magnetic Write Head

Microwave-Assisted Recording

Spin Torque Oscillator

Magnetic Recording

High Saturation Magnetization

Dual FGL

MAMR Head

Magnetic Notch

Pole Erasure Suppression

Asymmetrical Reader

Electric Damage Protection

53 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12700424 - Dual FGL and dual SPL spintronic device to reduce perpendicular field at writing location (2026-08-04),

2. 12620412 - Spintronic device comprising dual FGL and dual SPL to reduce perpendicular field at writing location (2026-05-05),

3. 12190920 - Spintronic device comprising dual FGL and dual SPL to reduce perpendicular field at writing location (2025-01-07),

4. 12190919 - Dual FGL and dual SPL spintronic device to reduce perpendicular field at writing location (2025-01-07),

5. 11011190 - Magnetic write head with write-field enhancement structure including a magnetic notch (2021-05-18),

6. 10811039 - Magnetic write head for providing spin-torque-assisted write field enhancement (2020-10-20),

7. 10546603 - Magnetic write head for providing spin-torque-assisted write field enhancement (2020-01-28),

8. 10366714 - Magnetic write head for providing spin-torque-assisted write field enhancement (2019-07-30),

9. 10283159 - Switching period control of microwave assisted magnetic recording for pole erasure suppression (2019-05-07),

10. 10020020 - Switching period control of microwave assisted magnetic recording for pole erasure suppression (2018-07-10),

11. 9799369 - Switching period control of microwave assisted magnetic recording for pole erasure suppression (2017-10-24),

12. 9406322 - Graded side shield gap reader (2016-08-02),

13. 9406316 - Asymmetric MAMR head with self-aligned spin torque oscillator along flare edge for shingled magnetic recording (2016-08-02),

14. 9406315 - AF-mode STO with negative Hk spin polarization layer (2016-08-02),

15. 9396744 - Two dimensional magnetic read head having asymmetrical secondary read elements (2016-07-19),

Title: Masato Shiimoto: Pioneering Inventor from Odawara

Introduction: Masato Shiimoto is a renowned inventor hailing from Odawara, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Masato Shiimoto holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his innovative spirit and forward-thinking approach.

Career Highlights: With over two decades of experience in the tech industry, Masato Shiimoto has worked with leading research institutions and universities to develop cutting-edge solutions that have revolutionized the way we interact with technology.

Collaborations: Throughout his career, Masato Shiimoto has collaborated with top companies in Japan and internationally, fostering a culture of innovation and knowledge sharing that has led to significant advancements in the field.

Conclusion: Masato Shiimoto's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a trailblazer in the world of technology, inspiring the next generation of inventors to push the boundaries of what is possible.

Profile summary based on public USPTO records.

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