Location History:
- Kokubunji, JP (2009)
- Sendai, JP (2010 - 2015)
- Higashimurayama, JP (2014 - 2020)
- Tokyo, JP (2015 - 2023)
Company Filing History:
9 out of 982 
8 out of 42,485 
4 out of 1,116 
Years Active: 2009-2025
Title: Innovations in Magnetic Tunnel Junctions by Katsuya Miura
Introduction
Katsuya Miura, based in Higashimurayama, Japan, is an accomplished inventor known for his significant contributions to the field of magnetic tunnel junction technology. With a remarkable portfolio comprising 21 patents, Miura's work has paved the way for advancements in magnetic materials and structures.
Latest Patents
Among his latest innovations is a groundbreaking method of manufacturing a magnetic tunnel junction. This method not only addresses the removal of oxides on the sides of the magnetic layer but also facilitates the formation of a protective film, thereby preventing the deterioration of magnetic characteristics. The process consists of two major steps: the first involves etching a stacked film composed of a first magnetic layer, a MgO barrier layer, and a second magnetic layer using plasma etching with an oxidizing gas. The second step introduces an organic acid gas, an n-valent acid, alongside a precursor gas to create a protective film on the side walls of the magnetic tunnel junction. This meticulous approach ensures that the precursor gas is introduced at a molar ratio of n/m or more with respect to the organic acid gas, enhancing the overall performance of the junction.
Career Highlights
Katsuya Miura has achieved significant milestones in his career, notably in his roles at prestigious institutions. He has been affiliated with Tohoku University and Hitachi, Ltd., where he has been able to apply his innovative ideas and collaborate with leading experts in the field.
Collaborations
Throughout his career, Miura has worked alongside notable colleagues, including Hideo Ohno and Shoji Ikeda. These collaborations have fostered an environment of innovation and have contributed to the advancement of magnetic tunnel junction technologies.
Conclusion
Katsuya Miura's contributions to the invention and development of magnetic tunnel junctions have made a significant impact on the field of magnetics. His innovative methods and collaborative efforts continue to inspire future advancements in technology, solidifying his reputation as a leading figure in the realm of electrical engineering and magnetics.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.