Kazunori Tokiwa

Title: Kazunori Tokiwa: Innovator in Optical Information Recording Technology

Introduction

Kazunori Tokiwa is a distinguished inventor based in Tokyo-to, Japan. With a passion for advancing optical information technology, Tokiwa has contributed significantly to the field, holding two patents that showcase his innovative capabilities.

Latest Patents

Tokiwa's most recent inventions include a method and apparatus for recording and reproducing signals on and from optical information recording mediums. This innovation involves the recording of test signals in a prescribed area of an optical disc, where the area is scanned by a laser beam with varying DC erasing values. The respective recorded signals are subsequently reproduced, allowing for the detection of parameter values that correspond to different erasing values. The technique enables the calculation of the optimum level of erasing power for the laser beam based on detected parameter values.

Another notable patent by Tokiwa is a method and apparatus for inspecting optical discs. This invention focuses on the conversion of reflected light into main and sub-signals from different layers of an optical disc. By detecting the address of the currently-accessed position, Tokiwa's method can assess track alignment on the first and second layers, ensuring precision in optical disc technology.

Career Highlights

Kazunori Tokiwa is an employee of the Victor Company of Japan, Limited, where he has played a pivotal role in developing cutting-edge optical media technologies. His research and innovations have elevated the company's offerings in the competitive market of optical recording systems.

Collaborations

Throughout his career, Tokiwa has worked alongside noteworthy colleagues, including Hideharu Eguchi and Toshiyuki Kato. Their collaborative efforts have led to significant advancements in optical technology, further establishing their status in the industry.

Conclusion

Kazunori Tokiwa's contributions to optical information recording technology reflect his dedication to innovation and excellence. As he continues to develop new methods and technologies, his work not only enhances the capabilities of the Victor Company of Japan, Limited but also advances the field of optical media as a whole.