Hiroko Hanzawa

Title: Innovations of Hiroko Hanzawa

Introduction

Hiroko Hanzawa is a notable inventor based in Shiroishi, Japan. She has made significant contributions to the field of optical devices, particularly in the development of advanced lenses for optical memory devices. With a total of two patents to her name, Hanzawa's work has had a considerable impact on the efficiency and performance of optical technologies.

Latest Patents

Hanzawa's latest patents include an "Objective lens for optical memory device" and a "Collimating lens for use in optical memories." The objective lens is designed with a plane surface on one side for emitting a luminous flux towards a disk, and an aspherical surface on the other side for receiving a luminous flux in the opposite direction. This innovative design satisfies specific conditions that enhance its functionality. The collimating lens features a concave first surface for receiving the incident beam and a convex, non-spherical second surface for emitting the outgoing beam. This lens improves the concentration of the beam passing through its periphery, increasing the actual number of openings of the objective lens and enhancing coupling efficiency. As a result, it allows for the formation of very tiny spots on the disc, improving the transmission rate.

Career Highlights

Hiroko Hanzawa is currently employed at Alps Electric Co., Ltd., where she continues to innovate in the field of optical technologies. Her work has been instrumental in advancing the capabilities of optical memory devices, making them more efficient and effective.

Collaborations

Hanzawa collaborates with Ichiro Morishita, who is also a key figure in her research and development efforts. Their partnership has led to significant advancements in the design and functionality of optical lenses.

Conclusion

Hiroko Hanzawa's contributions to optical technology through her innovative patents demonstrate her expertise and commitment to advancing the field. Her work continues to influence the development of more efficient optical memory devices, showcasing the importance of innovation in technology.