Hideki Yoshihara

Title: Innovations by Hideki Yoshihara

Introduction

Hideki Yoshihara is a notable inventor based in San Jose, California. He has made significant contributions to the field of disk drive technology. His innovative approach has led to the development of a unique method for positioning heads in disk drives.

Latest Patents

Yoshihara holds a patent for a method titled "Method for positioning head in disk drive deriving 'position' offset." This patent addresses a disk drive servo system that utilizes position and position-quadrature signals (P, Q). The method automatically effects 'Absolute Track Registration' and compensates for 'offsets' by using the peak position of one of the signals to determine the 'true' position for the other. The process involves bringing the R/W actuator to rest at a reference position, generating a sample-offset signal, and detecting the corresponding magnitude of related positioning signals. This procedure is repeated until the peak values of the positioning signals are located, allowing for the derivation of the corresponding position-offset as the 'true offset.' The actuator is then repositioned by this 'true offset' value, and the process is repeated across various track sites on the disk.

Career Highlights

Yoshihara is currently employed at Unisys Corporation, where he continues to innovate in the field of disk drive technology. His work has been instrumental in enhancing the performance and reliability of disk drives.

Collaborations

He collaborates with Nicholas M. Warner, contributing to advancements in their shared field of expertise.

Conclusion

Hideki Yoshihara's contributions to disk drive technology through his innovative patent demonstrate his expertise and commitment to advancing the industry. His work continues to influence the development of more efficient and reliable disk drive systems.