This inventor holds 2 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1998-2001.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1998-2001
Title: Hirokazu Ishizaki: Innovator in Spindle Motor Technology
Introduction
Hirokazu Ishizaki is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of spindle motor technology, holding 2 patents that showcase his innovative approach to engineering.
Latest Patents
One of his latest patents is for a spindle motor having a temperature compensation member encircling the hub body around the bearing. This spindle motor design includes a stationary axis fixed to the housing of a recording disk apparatus, with a hub body supported by upper and lower ball bearings for rotation. The temperature compensation member is designed to partially surround the hub body, effectively suppressing thermal expansion by utilizing a material with a smaller thermal expansion coefficient than that of the hub body.
Another significant patent involves head positioning control for disk apparatus using peak detection. This invention addresses balance adjustments due to the reduction in size and weight of an actuator. The design strategically arranges the arm portion, axis attaching portion, and coil supporting portion to ensure that the centers of gravity on the coil side align with a straight line connecting the rotational center and the center of gravity on the head side. This innovation enhances assembling efficiency, increases torque, and improves noise prevention in read patterns.
Career Highlights
Hirokazu Ishizaki is currently employed at Fujitsu Corporation, where he continues to develop cutting-edge technologies in the field of spindle motors and disk apparatus. His work has been instrumental in advancing the efficiency and performance of these devices.
Collaborations
Throughout his career, Ishizaki has collaborated with talented coworkers, including Tatsuya Gofuku and Eiji Okamura. Their combined expertise has contributed to the successful development of innovative technologies in their field.
Conclusion
Hirokazu Ishizaki's contributions to spindle motor technology and his innovative patents reflect his dedication to engineering excellence. His work continues to influence advancements in the industry, showcasing the importance of innovation in technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile