Toshihisa Kiyonaga

Title: The Innovations of Toshihisa Kiyonaga

Introduction

Toshihisa Kiyonaga is a prominent inventor based in San Jose, California. He has made significant contributions to the field of data storage technology, holding a total of five patents. His work focuses on enhancing the efficiency and capacity of data storage devices.

Latest Patents

Kiyonaga's latest patents include a data storage device employing staggered servo wedges to increase capacity. This invention features a voice coil motor (VCM) with a resonance frequency, a first disk surface with a set of servo sectors written at a frequency less than twice the VCM resonance frequency, and a second disk surface with a circumferentially offset set of servo sectors. The device allows for precise positioning of the read head based on generated position error signals (PES). Another notable patent is a data storage device that disables swinging of spindle motor speed based on PES. This innovation ensures that the head is actuated over the disk effectively while managing the spindle motor's speed.

Career Highlights

Kiyonaga is currently employed at Western Digital Technologies, Inc., where he continues to develop cutting-edge data storage solutions. His expertise in servo technology and data management has positioned him as a key player in the industry.

Collaborations

Some of his notable coworkers include Peng Huang and Kexiu Liu, who have collaborated with him on various projects within the company.

Conclusion

Toshihisa Kiyonaga's contributions to data storage technology through his innovative patents demonstrate his commitment to advancing the field. His work continues to influence the development of more efficient data storage solutions.