Minoru Ohtsuka

Title: Minoru Ohtsuka: Innovator in Optical Technology

Introduction

Minoru Ohtsuka is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of optical technology, particularly in the development of advanced optical head apparatuses. With a total of 2 patents to his name, Ohtsuka continues to push the boundaries of innovation in this area.

Latest Patents

One of Ohtsuka's latest patents is a rotatable read/write optical head apparatus. This invention features a carriage that moves along a guide shaft, which extends parallel to the radial direction of an optical disc. An armature is mounted on the carriage, allowing it to rotate about a pivotal axis that is perpendicular to the surface of the optical disc. The objective lens is fixed to the armature and is designed to traverse the tracks on the optical disc as the armature rotates. The apparatus includes guide yokes that run parallel to the guide shaft, and tracking and carriage-servo coils that are fixed to the armature. These coils have a hollow through which the guide yokes loosely extend. A magnetic field means generates magnetic lines of force that are perpendicular to the longitudinal direction of the guide yokes and parallel to the surface of the optical disc. The drive circuit supplies currents to the tracking and carriage-servo coils, producing electromagnetic forces that drive the armature along the guide yokes or rotate it about the pivotal axis.

Career Highlights

Ohtsuka is currently employed at Oki Electric Industry Co., Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in advancing optical disc technology, making it more efficient and effective for various applications.

Collaborations

Throughout his career, Ohtsuka has collaborated with several talented individuals, including Yasuo Shimizu and Masahiro Takahashi. These collaborations have contributed to the success of his inventions and the advancement of optical technology.

Conclusion

Minoru Ohtsuka is a distinguished inventor whose work in optical technology has led to significant advancements in the field. His innovative spirit and dedication to research continue to inspire future developments in optical systems.