Shunichiroh Ohta

Title: **Shunichiroh Ohta: Innovator in Magnetic Disk Technology**

Introduction

Shunichiroh Ohta is a notable inventor based in Machida, Japan, recognized for his contributions to the field of magnetic disk technology. With a total of four patents to his name, Ohta's work has significantly impacted data storage solutions, particularly in enhancing the efficiency and accuracy of writing patterns on magnetic disks.

Latest Patents

One of Ohta's significant innovations is the patent titled "Method of writing pattern on magnetic disk and device therefor." This invention focuses on achieving accurate pitch control of a servo write track. It introduces a Self-Servo-Write (SSW) approach that determines a reference Automatic Pitch Control (APC) by reading a pre-formed mark on the recording surface that corresponds to the propagation head. By knowing the precise size of this mark, Ohta’s method enables the writing of product servo patterns with a desired and accurate track pitch.

Another of his latest patents, "Control method and apparatus for reducing the effects of hard disk contamination," presents a technique and apparatus designed for rotating storage devices. This invention involves a storage medium that rotates and includes a head for reading and writing information. Ohta's method ensures that when the head is loaded onto the storage medium, there is a system to determine if a write operation occurs within a specified time frame, thereby setting a verification flag to indicate if data verification is needed immediately after a write operation.

Career Highlights

Ohta currently contributes to Hitachi Global Storage Technologies Netherlands B.V., where he applies his expertise in the development of innovative storage solutions. His work in this company has focused on improving data integrity and storage efficiency through his patented inventions.

Collaborations

Throughout his career, Shunichiroh Ohta has collaborated with notable peers, including Masayuki Kanamaru and Naoyuki Kagami. Together, they have worked towards advancing technology in magnetic discourse and storage systems, combining their expertise to create groundbreaking solutions in their respective fields.

Conclusion

Shunichiroh Ohta's innovations have played a pivotal role in enhancing the performance of magnetic disks, particularly in the realms of data writing accuracy and contamination management. His patents not only reflect his commitment to advancing technology but also highlight the collaborative spirit that characterizes the innovative environments within leading technology companies like Hitachi Global Storage Technologies.