Company Filing History:
Years Active: 1992-1993
Title: Souichi Tohyama: Innovator in Disk Drive Technology
Introduction
Souichi Tohyama is a prominent inventor based in Ibaraki, Japan. He has made significant contributions to the field of disk drive technology, holding 2 patents that showcase his innovative approach to data recording and positioning systems.
Latest Patents
Tohyama's latest patents include a disk drive and method of controlling the same. This invention features a data recording medium disk, a head for reading and writing data, and a positioning mechanism that supports and moves the head. The control unit processes the position detection signal and outputs a position control signal to the positioning mechanism. It calculates a target acceleration signal to ensure the turnaround frequency coincides with the resonance frequency of the head positioning mechanism. Additionally, he developed a method and apparatus for control of positioning, which transitions from velocity control to position control as the controlled object approaches the target position.
Career Highlights
Souichi Tohyama has built a successful career at Hitachi, Ltd., where he has been instrumental in advancing disk drive technology. His work has significantly impacted the efficiency and reliability of data storage systems.
Collaborations
Tohyama has collaborated with notable colleagues, including Hiromu Hirai and Takashi Yamaguchi, contributing to various projects that enhance the capabilities of disk drives.
Conclusion
Souichi Tohyama's innovative work in disk drive technology has established him as a key figure in the field. His patents reflect a deep understanding of the complexities involved in data recording and positioning systems.