This inventor holds 5 USPTO granted patents. Top assignees: Canon Denshi Kabushiki Kaisha, Canon Kabushiki Kaisha. Active years: 1978-1985.
Location History:
- Chichibu, JA (1978)
- Saitama, JP (1984)
- Chichibu, JP (1980 - 1985)
Company Filing History:


Years Active: 1978-1985
Title: Naohiko Toshimitsu: Innovator in Magnetic Head Technology
Introduction
Naohiko Toshimitsu is a notable inventor based in Chichibu, Japan. He has made significant contributions to the field of magnetic head technology, holding a total of 5 patents. His innovative designs have advanced the performance and efficiency of magnetic recording devices.
Latest Patents
Toshimitsu's latest patents include a magnetic head designed to minimize cross-talk caused by leakage magnetic flux within the shield case. This design achieves a reduction in cross-talk through the chamfering of at least one side of an opening in the shield case, which is oriented substantially perpendicular to the direction of the magnetic recording medium. Another patent features a magnetic head constructed with a core formed by butt-connecting multiple core halves, each possessing different magnetic flux densities or permeabilities. This configuration creates an intense magnetic field at the connection point, enhancing both output characteristics and reproduction sensitivity. The design also incorporates a combination of high hardness permalloy and sendust to reduce manufacturing costs.
Career Highlights
Throughout his career, Naohiko Toshimitsu has worked with prominent companies such as Canon Denshi Kabushiki Kaisha and Canon Kabushiki Kaisha. His work has significantly impacted the development of magnetic recording technologies.
Collaborations
Toshimitsu has collaborated with notable colleagues, including Fumio Tanaka and Masayuki Fujimura. Their combined expertise has contributed to the advancement of magnetic head technology.
Conclusion
Naohiko Toshimitsu's innovative contributions to magnetic head technology have established him as a key figure in the field. His patents reflect a commitment to enhancing the performance of magnetic recording devices, showcasing his expertise and dedication to innovation.