Location History:
- Kanagawa, JP (2014)
- Tokyo, JP (2011 - 2016)
Company Filing History:
Years Active: 2011-2016
Title: Norikazu Ohshima: Pioneer in Magnetic Memory Technology
Introduction
Norikazu Ohshima, located in Tokyo, Japan, is a distinguished inventor known for his significant contributions to the field of magnetic memory devices. With a remarkable portfolio of 32 patents, Ohshima has played a vital role in advancing technologies that utilize the magnetoresistive effect.
Latest Patents
Among his latest patents is the invention of a magnetoresistive effect element and magnetic random access memory utilizing this element. The design includes a domain wall motion layer made of ferromagnetic material with perpendicular magnetic anisotropy, a spacer layer formed of non-magnetic material, and a reference layer with fixed magnetization. This configuration allows the domain wall to store data based on its position, thus enhancing data retention and performance in memory devices.
Another noteworthy patent by Ohshima involves a magnetic memory element that consists of a first magnetization free layer with perpendicular magnetic anisotropy and a second magnetization free layer featuring in-plane magnetic anisotropy. The clever structuring of magnetization fixed regions and a non-magnetic layer between them allows for improved data switching capabilities, contributing to the efficiency of magnetic memory applications.
Career Highlights
Throughout his career, Norikazu Ohshima has been associated with renowned companies such as NEC Corporation and Renesas Electronics Corporation. His work in these leading firms has significantly influenced the development of innovative magnetic memory technologies.
Collaborations
Ohshima has collaborated with notable colleagues, including Nobuyuki Ishiwata and Tetsuhiro Suzuki. These collaborations have further enhanced his research and development efforts, establishing him as a key figure in the realm of memory technology innovation.
Conclusion
Norikazu Ohshima's contributions to magnetic memory technology through his patents have made him a prominent inventor in his field. His innovative designs and collaborative efforts reflect a dedication to advancing the capabilities of magnetic memory applications, ensuring his legacy in modern technological advancements.