Tatsushi Nakamura

Title: Innovations of Tatsushi Nakamura

Introduction

Tatsushi Nakamura is a notable inventor based in Moriguchi, Japan. He has made significant contributions to the field of optical information technology. With a total of 5 patents, his work has advanced the capabilities of optical recording and reproduction.

Latest Patents

One of his latest patents is an "Optical information recording and reproducing disc employing a film." This invention features a substrate with signal recording grooves and cue signal recording pits. A light-absorbing thin film is applied to the substrate's surface, which can change its optical characteristics thermally through light beam irradiation. The design of the grooves and pits is meticulously calculated to optimize the recording and reproduction process, ensuring high-quality information retrieval.

Another significant patent is the "Optical recording and retrieving disc." This optical disc is designed for recording, retrieving, and erasing information. The phase difference of reflected light produced by the tracking groove is carefully selected to provide a stable detection signal for tracking. This innovation allows for highly accurate tracking on optical discs that carry information at high density.

Career Highlights

Tatsushi Nakamura has been associated with Matsushita Electric Industrial Co., Ltd., a company known for its technological advancements. His work has played a crucial role in enhancing the performance of optical discs, contributing to the company's reputation in the industry.

Collaborations

He has collaborated with notable coworkers, including Takeo Ohta and Nobuo Akahira. Their combined expertise has fostered innovation and development in optical technologies.

Conclusion

Tatsushi Nakamura's contributions to optical information technology through his patents have significantly impacted the field. His innovative designs and collaborations continue to influence advancements in optical recording and reproduction.