Kouichirou Nishimura

Title: Kouichirou Nishimura: Innovator in Wobble Signal Reproducing Technology

Introduction

Kouichirou Nishimura is a notable inventor based in Ebina, Japan. He has made significant contributions to the field of optical data storage technology. With a total of 4 patents to his name, Nishimura has focused on enhancing the stability and efficiency of wobble signal reproduction in various optical disks.

Latest Patents

One of his latest inventions is a wobble signal reproducing circuit. This invention aims to stably reproduce wobble signals from all types of disks, including CD-R/RW, DVD-R/RW, and DVD-RAM, using a single wobble signal reproducing circuit. The circuit incorporates an Automatic Gain Control (AGC) system that equalizes the output of a push-pull circuit across a wide range and adjusts the RF amplitude from an optical detector. Additionally, it features another AGC circuit designed to maintain uniform wobble amplitude. The invention also includes mechanisms to hold gain or adjust the response time constant during the reproduction of DVD-R/RW and DVD-RAM disks.

Career Highlights

Kouichirou Nishimura is currently employed at Hitachi, Ltd., where he continues to innovate in the field of optical technology. His work has been instrumental in advancing the capabilities of optical data storage systems. Nishimura's inventions have contributed to improved data integrity and reliability in consumer electronics.

Collaborations

Throughout his career, Nishimura has collaborated with esteemed colleagues, including Kouichi Hirose and Manabu Katsuki. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Kouichirou Nishimura is a prominent figure in the realm of optical data storage, with a focus on wobble signal reproduction technology. His contributions have significantly impacted the industry, and his ongoing work at Hitachi, Ltd. continues to push the boundaries of innovation.