Company Filing History:
3 out of 58,130 
1 out of 7,865 
Years Active: 1989-1999
Title: Toshio Aizawa: Innovator in Geomagnetic Technology
Introduction
Toshio Aizawa is a notable inventor based in Miyagi, Japan. He has made significant contributions to the field of geomagnetic technology, holding a total of 3 patents. His work has been influential in the development of advanced sensors and recording technologies.
Latest Patents
One of Aizawa's latest inventions is a geomagnetic direction sensor. This sensor features a plurality of magnetic cores arranged circumferentially with pre-set gaps, along with magneto-resistive effect devices positioned at right angles to the magnetic field direction. The design includes at least a pair of these devices lying substantially at right angles to each other. The magnetic core is constructed from a soft magnetic material, and current is supplied to excitation coils around the core to apply a bias magnetic field to the devices. Another notable patent is for a recording disk that includes an improved centering hub and magnetic yoke, enhancing data recording capabilities.
Career Highlights
Throughout his career, Toshio Aizawa has worked with prominent companies, including Sony Corporation and Minnesota Mining and Manufacturing Company. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects.
Collaborations
Aizawa has collaborated with esteemed colleagues such as Yoshihisa Kawamura and Kazuo Kurihara. Their joint efforts have further advanced the technologies in which they specialize.
Conclusion
Toshio Aizawa's contributions to geomagnetic technology and his innovative patents highlight his role as a significant inventor in the field. His work continues to influence advancements in sensor technology and data recording.