Kamakura, Japan

Kanji Sakurai

This inventor holds 4 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1980-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kanji Sakurai. Retrieved from https://idiyas.com/inventor/kanji-sakurai

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 2.8

ph-index = 3

Forward Citations = 49(Granted Patents)


Location History:

  • Kamakura, JP (1980 - 1983)
  • Kanagawa, JP (1987)

Company Filing History:


Years Active: 1980-1987

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4 patents (USPTO):Explore Patents

Title: Kanji Sakurai: Innovator in Magnetic Head Technology

Introduction

Kanji Sakurai is a notable inventor based in Kamakura, Japan, recognized for his contributions to magnetic head technology. With a total of 4 patents, he has made significant advancements in the field, particularly in mechanisms that enhance the performance and reliability of magnetic recording devices.

Latest Patents

Sakurai's latest patents include a "Magnetic head actuating mechanism constructed to minimize address effect." This invention features a capstan attached to the shaft of a magnetic head driving motor, along with an actuator arm supported on a pivot. The design ensures that the moment of the unbalanced mass of the turning assembly remains within a predetermined range, allowing the magnetic head to remain stationary even when the motor is not energized. This innovation effectively prevents contact between the magnetic head and a magnetic disk, eliminating the need for a locking mechanism.

Another significant patent is the "Magnetic head soft loading and unloading device." This device incorporates an electromagnet with a spring-loaded armature that loads and unloads double-sided flexible magnetic recording discs. The system includes a permanent magnet that acts as a speed sensor, working in conjunction with a solenoid to monitor the loading and unloading speeds of the magnetic heads. This sophisticated mechanism enhances the efficiency and functionality of magnetic recording systems.

Career Highlights

Kanji Sakurai has built a distinguished career at Mitsubishi Electric Corporation, where he has been instrumental in developing innovative technologies in the field of magnetic recording. His work has not only advanced the technical capabilities of magnetic heads but has also contributed to the overall progress of data storage solutions.

Collaborations

Throughout his career, Sakurai has collaborated with esteemed colleagues such as Shin Isozaki and Masaru Sasaki. These partnerships have fostered a creative environment that has led to groundbreaking inventions and improvements in magnetic head technology.

Conclusion

Kanji Sakurai's contributions to magnetic head technology exemplify the spirit of innovation and dedication to advancing engineering solutions. His patents reflect a deep understanding of the complexities involved in magnetic recording, and his work continues to influence the industry today.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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