Naoyuki Egusa

Title: Innovations by Inventor Naoyuki Egusa

Introduction

Naoyuki Egusa is a prominent inventor based in Nagaokakyo, Japan. With a total of five patents to his name, he has made significant contributions to the fields of optical and magneto-optical recording technologies. His innovative approaches have driven advancements in data playback and recording methods, influencing both consumer and professional applications.

Latest Patents

Among his latest patents is a method of and device for recording and playing back an optical disk. This invention involves scanning an optical disk with a laser beam, where the recording pits are smaller than the light spot, enhancing the effectiveness of playback signals derived from the reflected light. The laser beam’s power is carefully controlled to maximize the playback signal level from these pits.

Another groundbreaking patent covers a method using a magneto-optical disk. In this method, the recording pits are crescent-shaped, and the rotation direction during playback is opposite that during recording. This creative design allows for a more efficient structure for data handling.

Additionally, Egusa has developed a magneto-optical recording and reproducing apparatus that utilizes the second harmonic wave of solid laser light. This device divides laser beams to create multiple light spots for recording, facilitating parallel recording and high-speed data transfer. The inclusion of magnetic field-generating coils ensures accurate and stable optical outputs, significantly improving the efficiency of data storage.

Career Highlights

Naoyuki Egusa currently works at Mitsubishi Electric Corporation, a leader in industrial and technological advancements. His role involves continuous research and development in cutting-edge recording technologies. Each of his patents reflects a commitment to innovation and a powerful understanding of optical mechanics.

Collaborations

Throughout his career, Egusa has been fortunate to collaborate with other talented engineers and researchers, including Masahisa Shinoda and Manabu Koike. These partnerships have fostered a valuable exchange of ideas and insights, further enriching the development of new technologies in their field.

Conclusion

Naoyuki Egusa’s contributions to optical and magneto-optical technologies showcase his inventive spirit and dedication to advancing data recording methods. His patents reflect a deep understanding of optical systems, and through his collaborations at Mitsubishi Electric Corporation, he continues to pave the way for future innovations in the field.