Hidenori Saitoh

Title: Hidenori Saitoh: Innovator in Optical Disc Technology

Introduction

Hidenori Saitoh is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of optical disc technology, holding 2 patents that showcase his innovative approach to improving optical systems.

Latest Patents

One of his latest patents is for an optical disk drive unit. This compact unit enhances the workability of assembly by incorporating a first printed wiring board that features a signal demodulating circuit, a drive unit control circuit, and a drive circuit for a voice coil motor. The design includes a moving optical assembly with an objective lens and a fixed optical assembly that houses a laser drive module and a photodetector. The connection between the first and second printed wiring boards is facilitated through connectors, ensuring efficient operation.

Another significant patent is a system for obtaining an optimum focusing position in an optical disc system. This system involves impinging an optical beam onto a track of an optical disc and obtaining a reflection signal that provides information about the intensity of the reflected beam. By extracting a predetermined frequency component from the reflection signal, the system can search for the focus position that yields maximum intensity. This technology is integrated into a focus servo control system, which maintains optimal focusing during reading and writing operations.

Career Highlights

Hidenori Saitoh is currently employed at Fujitsu Corporation, where he continues to develop innovative solutions in optical technology. His work has significantly impacted the efficiency and effectiveness of optical disc systems.

Collaborations

Throughout his career, Saitoh has collaborated with esteemed colleagues such as Shigenori Yanagi and Akira Minami. These partnerships have fostered a creative environment that has led to advancements in their respective fields.

Conclusion

Hidenori Saitoh's contributions to optical disc technology through his patents and work at Fujitsu Corporation highlight his role as a key innovator in the industry. His advancements continue to influence the development of optical systems, ensuring better performance and reliability.