Susumu Okamura

Title: **Susumu Okamura: A Pioneer in Spintronics**

Introduction

Susumu Okamura, based in Fujisawa, Japan, is a renowned inventor known for his significant contributions to the field of spintronics. With a remarkable portfolio of 36 patents, his innovations have advanced magnetic recording devices and spintronic technology, paving the way for improved performance and reliability in data storage solutions.

Latest Patents

Among Okamura's notable recent patents is the "Spin torque oscillator with multilayer seed for improved performance and reliability." This invention focuses on a magnetic recording device featuring a magnetic recording head that utilizes a spintronic device. Positioned between the main pole and the trailing shield at the media facing surface, the spintronic device consists of a spin torque layer (STL) and a unique multilayer seed layer that enhances the device's shape during manufacturing. The multilayer seed comprises a high etch rate layer, offering significant improvements in the performance and reliability of the spintronic device.

Another significant patent is related to "Buffer layers and interlayers that promote BiSbx (012) alloy orientation for SOT and MRAM devices." This invention details the use of a bismuth antimony (BiSb) layer with a specific orientation that facilitates the efficiency of spin-orbit torque (SOT) magnetic tunnel junction (MTJ) devices. The inclusion of buffer and interlayer materials inhibits antimony migration, ensuring the uniformity and stability of the BiSb layer, which is critical for the advancement of MRAM technology.

Career Highlights

Throughout his career, Okamura has worked for prominent companies in the technology sector, including Western Digital Technologies, Inc. and HGST Netherlands B.V. His tenure at these companies has enabled him to lead and contribute to transformative innovations in data storage technologies.

Collaborations

Collaboration has played a crucial role in Okamura's success as an inventor. He has closely worked with notable colleagues such as James Mac Freitag and Zheng Gao. These partnerships have facilitated the exchange of ideas and fostered innovative solutions in the field of spintronics.

Conclusion

Susumu Okamura's pioneering work in spintronics and magnetic recording technology has solidified his reputation as a leading inventor in the industry. With a total of 36 patents, his contributions continue to shape the future of data storage solutions, driving advancements and enabling new possibilities in the realm of technology.