Company Filing History:
11 out of 370 
2 out of 984 
Years Active: 2014-2023
Title: **Ryousuke Kushibiki: An Innovative Mind in Magnetic Materials**
Introduction
Ryousuke Kushibiki is a prominent inventor based in Tsukuba, Japan, known for his contributions to the field of magnetic materials. With a total of 11 patents to his name, he has made significant advancements in the development of in-plane magnetized films and associated technologies. His inventions have been pivotal in enhancing the performance and efficiency of magnetoresistive elements.
Latest Patents
Kushibiki's most recent patents include groundbreaking technologies such as an in-plane magnetized film, in-plane magnetized film multilayer structure, hard bias layer, magnetoresistive element, and sputtering target. His innovations focus on a CoPt-oxide-based in-plane magnetized film that showcases a magnetic coercive force of 2.00 kOe or more, and a remanent magnetization per unit area (Mrt) of 2.00 memu/cm² or more. This film is designed for use as a hard bias layer in magnetoresistive elements and consists of metal cobalt (Co) and metal platinum (Pt), along with an oxide component. The specific compositions are carefully formulated, with cobalt making up 55 at % to 95 at % and platinum constituting 5 at % to 45 at %. Additionally, the oxide is included in an amount between 10 vol % and 42 vol %. The film's thickness ranges from 20 nm to 80 nm. He has also developed a sputtering target that aids in the formation of high-coercive force magnetic thin films.
Career Highlights
Throughout his career, Kushibiki has worked with esteemed organizations such as Tanaka Kikinzoku Kogyo Co., Ltd., and Tohoku University. His work in these institutions has allowed him to push the boundaries of research and development in magnetic materials, contributing to a better understanding and improved functionality of such elements in various applications.
Collaborations
Kushibiki has collaborated with notable colleagues including Yasuyuki Goto and Masahiro Nishiura. Their combined expertise has fostered innovative approaches and resulted in numerous advancements in the field of magnetic films and elements.
Conclusion
Ryousuke Kushibiki's extensive work and patents in the realm of magnetic materials and technology highlight his significant role as an inventor. His contributions not only enhance the scientific community's knowledge but also pave the way for new applications in various industries, ensuring a lasting impact on future innovations in magnetoresistive technology.