Haruo Andoh

Title: Haruo Andoh: Inventor in Data Storage Technology.

Introduction

Haruo Andoh is an inventor associated with Kanagawa, Japan, and with innovations in disk-drive technology. His listed portfolio includes 4 patents, including work on defect mapping and disk-drive control.

Latest Patents

Medium Drive and Method of Generating a Defect Map for Registering Positions of Defects on a Medium. This invention describes ways to record defective sectors on a magnetic disk using three primary defect-map formats: single-sector entries, multi-sector entries, and two-dimensional sector entries. Selecting a format suited to the distribution of defects helps register them while working within limited RAM capacity.

Disk Drive and Method of Controlling the Same. This invention describes a disk drive designed to help prevent performance deterioration. Its components include a disk medium, a read/write head, and a controller that guides the head along a substantially spiral trajectory. The controller uses an identifier table linking sector identifiers with logical block addresses and creates a table for the next track during read/write operations.

Career Highlights

Andoh’s listed inventions focus on managing disk defects and coordinating head movement and sector identification. His work is associated with Hitachi Global Storage Technologies Netherlands B.V.

Collaborations

His listed coworkers include Masaki Kohno and Yuhji Yokoe.

Conclusion

Haruo Andoh’s patent work addresses practical challenges in disk storage, including efficient defect registration and maintaining disk-drive performance.