Yasuhisa Hirosawa

Title: **Yasuhisa Hirosawa: Innovator in Magnetic Head Technology**

Introduction

Yasuhisa Hirosawa stands out as a notable inventor in the field of magnetic head technology, operating from Saitama, Japan. With two patents to his name, Hirosawa has made significant contributions that enhance the efficiency and accuracy of magnetic disc systems.

Latest Patents

Among Hirosawa's most recent innovations are two patents that focus on advanced mechanisms for positioning magnetic heads. The first patent outlines a **carriage device for moving and positioning a magnetic head**. This device utilizes linear motor mechanisms incorporated within the carriage, allowing precise movements opposite the magnetic disk's tracks. The design features coils and permanent magnets arranged strategically, supported by guide rails made from a magnetic substance.

The second patent introduces a **micro stepping motor** that offers enhanced accuracy in positioning a magnetic head. This motor employs a permanent magnet type rotor encircled by a stator, featuring finely pitched pole teeth. By configuring the stator pole teeth in out-of-phase pairs, Hirosawa's design allows for higher density stepping. This innovative approach reduces the number of required stator coils while maintaining adjustable stepping angles, significantly improving the performance of magnetic disc systems.

Career Highlights

Yasuhisa Hirosawa is currently affiliated with Citizen Watch Company, Ltd., where he continues to refine and develop his groundbreaking technologies. His work in this esteemed company has placed him at the forefront of innovation in the field, with his inventions reflected in the efficiency of products developed by the organization.

Collaborations

Hirosawa frequently collaborates with fellow inventors Akira Nikaido and Takayasu Machida, contributing to an environment of creativity and knowledge sharing. Their combined expertise in the field has fostered advancements that benefit the broader technological landscape.

Conclusion

Yasuhisa Hirosawa's contributions to magnetic head technology demonstrate his commitment to innovation and excellence. With his patents promising improvements in the functionality of magnetic disc systems, Hirosawa's work continues to inspire future advancements within the industry. His experiences and collaborations further solidify his status as a leading inventor in his field.