Company Filing History:
Years Active: 1989
Title: Hitoshi Numasaka: Innovator in Multilayered Magnetic Films
Introduction
Hitoshi Numasaka is a prominent inventor based in Hachioji, Japan. He is known for his significant contributions to the field of magnetic materials, particularly in the development of multilayered magnetic films. His innovative work has led to advancements in thin-film magnetic heads, which are essential components in various electronic devices.
Latest Patents
Hitoshi Numasaka holds a patent for "Multilayered magnetic films and thin-film magnetic heads using the same." This invention comprises at least two unit magnetic films, each with a thickness ranging from 0.05 to 0.9 µm. The films include multiple ferromagnetic layers, each having a thickness of 0.01 to 0.2 µm, along with a first intermediate layer that is 1 nm to 10 nm thick. This layer consists of ferromagnetic, nonmagnetic, or antiferromagnetic material and is positioned between adjacent ferromagnetic layers. Additionally, a second intermediate layer, with a thickness of 10 to 40 nm, is made of nonmagnetic or antiferromagnetic material and is placed between the unit magnetic films. This multilayered magnetic film is particularly suitable as a pole for thin-film magnetic heads, enhancing their performance.
Career Highlights
Hitoshi Numasaka is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to focus on research and development in magnetic materials, contributing to the company's reputation for cutting-edge technology. His patent reflects his expertise and commitment to advancing the field of magnetic films.
Collaborations
Throughout his career, Hitoshi Numasaka has collaborated with notable colleagues, including Yoshihiro Hamakawa and Kazuo Shiiki. These collaborations have fostered a productive environment for innovation and have led to significant advancements in their respective fields.
Conclusion
Hitoshi Numasaka's contributions to the development of multilayered magnetic films have made a lasting impact on technology. His innovative patent showcases his expertise and dedication to enhancing the performance of thin-film magnetic heads. His work continues to influence the field of magnetic materials and electronic devices.