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For the Inventor, By the Inventor

San Jose, CA, United States of America

Masahiko Hashimoto

This inventor holds 9 USPTO granted patents. Top assignee: Western Digital Technologies, Inc.. Active years: 2019-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiko Hashimoto. Retrieved from https://idiyas.com/inventor/masahiko-hashimoto-wkbcmntl

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

Calculating rank
USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 4

Forward Citations = 32(Granted Patents)


Company Filing History:

goldMedal9 out of 5,432 
 
Western Digital Technologies, Inc.
 patents

Years Active: 2019-2023

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9 patents (USPTO):Explore Patents
1. 11646052 - Spin-torque oscillator with multilayer seed layer between the write pole and the free layer in a magnetic recording write head (2023-05-09),
2. 10997993 - Spin-torque oscillator with multilayer seed layer between the write pole and the free layer in a magnetic recording write head (2021-05-04),
3. 10997992 - Spin transfer torque device with oxide layer beneath the seed layer (2021-05-04),
4. 10867625 - Spin transfer torque (STT) device with template layer for Heusler alloy magnetic layers (2020-12-15),
5. 10839833 - Spin transfer torque device with oxide layer beneath the seed layer (2020-11-17),
6. 10734013 - Spin transfer torque (STT) device with multilayer seed layers for magnetic recording and memory (2020-08-04),
7. 10566015 - Spin transfer torque (STT) device with template layer for heusler alloy magnetic layers (2020-02-18),
8. 10460752 - Spin-torque oscillator with multilayer seed layer between the write pole and the free layer in a magnetic recording write head (2019-10-29),
9. 10446175 - Spin transfer torque device with oxide layer beneath the seed layer (2019-10-15),

Title: The Innovative Contributions of Masahiko Hashimoto

Introduction

Masahiko Hashimoto is a prominent inventor based in San Jose, California. He has made significant contributions to the field of magnetic recording technology, holding a total of nine patents. His work focuses on advancements in spin-torque oscillators and devices that enhance data storage capabilities.

Latest Patents

One of Hashimoto's latest patents is for a spin-torque oscillator with a multilayer seed layer positioned between the write pole and the free layer in a magnetic recording write head. This innovative design allows for improved electron flow and spin polarization, which enhances the performance of the write head. Another notable patent involves a spin transfer torque device that features an oxide layer beneath the seed layer. This configuration reduces undesirable damping of the oscillation of the free layer's magnetization, thereby improving the efficiency of the device.

Career Highlights

Hashimoto is currently employed at Western Digital Technologies, Inc., where he continues to push the boundaries of magnetic recording technology. His expertise in spin-torque oscillators has positioned him as a key player in the development of next-generation data storage solutions.

Collaborations

Throughout his career, Hashimoto has collaborated with notable colleagues, including James Mac Freitag and Zheng Gao. These partnerships have fostered innovation and have contributed to the advancement of technology in their field.

Conclusion

Masahiko Hashimoto's contributions to the field of magnetic recording technology are noteworthy and impactful. His innovative patents and collaborations reflect his dedication to advancing data storage solutions. His work continues to influence the industry and pave the way for future innovations.

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]
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