Kazunari Usui

Title: Kazunari Usui: Innovator in Magnetic Disk Technology

Introduction

Kazunari Usui is a notable inventor based in Fujisawa, Japan. He has made significant contributions to the field of magnetic disk technology, particularly through his innovative patent.

Latest Patents

Kazunari Usui holds a patent for a "Track pitch variation measurement method using spiral DC pattern writing." This method involves spiral writing a DC pattern onto a magnetic disk medium using a writer of a magnetic head. The process includes moving the magnetic head in a direction approximately parallel to the radial direction of the magnetic disk medium while it rotates. The method also encompasses reading the magnetic disk medium and calculating the track pitch interval between data tracks based on the readings. Additionally, the magnetic disk medium features a DC spiral pattern in radial regions that are further outward or inward than where data is recorded.

Career Highlights

Kazunari Usui is associated with HGST Netherlands B.V., where he has been able to apply his expertise in magnetic disk technology. His work has contributed to advancements in data storage solutions.

Collaborations

Kazunari has collaborated with notable coworkers, including Mao Nishiyama and Masafumi Mochizuki, who have also contributed to the field of magnetic technology.

Conclusion

Kazunari Usui's innovative work in magnetic disk technology exemplifies the impact of dedicated inventors in advancing data storage methods. His contributions continue to influence the industry and pave the way for future innovations.