Toyoyuki Nunomura

Title: Toyoyuki Nunomura: Innovator in Optical Information Technology

Introduction

Toyoyuki Nunomura is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of optical information technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and reliability of optical information recording mediums.

Latest Patents

Nunomura's latest patents include an innovative optical information-recording medium and a method for producing the same. This optical information-recording medium features a substrate with a plurality of lands and grooves. In-groove pits are strategically formed at the bottom of some grooves, ensuring that the widths of these pits in the radial direction are minimized, regardless of their lengths in the groove direction. The design maintains the predetermined shapes of the land and groove, allowing for effective detection of recording signals obtained from land prepits.

Another significant patent is an optical apparatus designed for optical information recording mediums. This apparatus includes a light source, two acousto-optical elements for modulating the emitted light beam, and an objective lens for focusing the light onto the recording medium. The acousto-optical elements are arranged in such a way that the directions of travel of the supersonic waves they generate cross each other, enhancing the overall functionality of the apparatus.

Career Highlights

Toyoyuki Nunomura is currently employed at Hitachi Maxell, Limited, where he continues to innovate in the field of optical technologies. His work has been instrumental in advancing the capabilities of optical information storage and retrieval systems.

Collaborations

Throughout his career, Nunomura has collaborated with esteemed colleagues such as Toshiaki Taii and Hiroshi Nagate. These collaborations have contributed to the development of cutting-edge technologies in optical information recording.

Conclusion

Toyoyuki Nunomura's contributions to optical information technology are noteworthy, with his patents reflecting a commitment to innovation and excellence. His work at Hitachi Maxell, Limited, alongside his talented colleagues, continues to push the boundaries of what is possible in this field.