Morio Nozaki

Title: Morio Nozaki: Innovator in Optical Technology

Introduction

Morio Nozaki is a prominent inventor based in Kawagoe, Japan. He has made significant contributions to the field of optical technology, particularly in the development of focusing controllers and tilt servo apparatuses for optical disc recording and reproducing systems. With a total of 4 patents to his name, Nozaki continues to push the boundaries of innovation in this specialized area.

Latest Patents

One of Nozaki's latest patents is a focusing controller designed for focus jump control between recording layers of multilayer disks. This innovative controller executes appropriate focus jumps even in multilayer disks that have layers with significantly different characteristics. The system includes an optical pickup with an objective lens for converging the light beam and a detector for receiving reflected light from the multilayer recording medium. An error signal generator produces a focus error signal based on the detector's output, while an actuator operates the objective lens. The controller then adjusts the focusing position of the light beam based on the focus error signal, calculating the intensities of reflected lights from two layers to control the timing of focus jumps.

Another notable patent is the liquid crystal tilt servo apparatus. This apparatus is part of an optical disc recording and reproducing system. It features a sampling portion that samples an RF envelope signal at predetermined rotational angles, based on a rotation signal synchronized with the optical recording medium's rotation. The calculating portion computes the average value of the sampled envelope intensities, and the control portion manages tilt error correction based on this average value.

Career Highlights

Morio Nozaki is associated with Pioneer Corporation, a leading company in the field of electronics and optical technology. His work has significantly advanced the capabilities of optical disc technology, making it more efficient and reliable.

Collaborations

Throughout his career, Nozaki has collaborated with notable colleagues such as Hitoshi Yamazaki and Takeshi Sato. Their combined expertise has contributed to the successful development of innovative technologies in the optical field.

Conclusion

Morio Nozaki's contributions to optical technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in optical disc technology, ensuring better performance and reliability in recording and reproducing systems.