Shouji Nakajima is a prominent inventor based in Kodaira, Japan. He has made significant contributions to the field of disk drive technology, holding a total of 12 patents. His work focuses on improving the efficiency and accuracy of data storage and retrieval systems.

Latest Patents

Among his latest patents is a method and apparatus for head positioning using spiral servo patterns in a disk drive. This invention involves a disk drive that includes a disk, a read head, a servo controller, and a CPU. The disk features a multi-spiral servo pattern that allows the read head to reproduce a hexagon-shaped detection signal. The servo controller generates amplitude values for respective frames from the multi-spiral servo pattern. The CPU calculates positional errors using these amplitude values and corrects any detected positional changes of the head. Another notable patent is a method and apparatus for writing servo data using spiral servo patterns in a disk drive. In this invention, the CPU directs the head to record final patterns on the disk by utilizing the multi-spiral servo pattern, ensuring accurate writing and reading of sector-address data.

Career Highlights

Shouji Nakajima is associated with Kabushiki Kaisha Toshiba, a leading company in technology and electronics. His innovative work has played a crucial role in advancing disk drive technology, making significant impacts in the industry.

Collaborations

He has collaborated with notable coworkers, including Seiji Mizukoshi and Hideo Sado, contributing to various projects that enhance the functionality of disk drives.

Conclusion

Shouji Nakajima's contributions to disk drive technology through his patents and collaborations highlight his importance as an inventor in the field. His work continues to influence advancements in data storage solutions.

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