Eriko Tatsu

Title: Eriko Tatsu: Innovator in Optical Technology

Introduction

Eriko Tatsu is a prominent inventor based in Kokubunji, Japan, known for her contributions to optical technology. With a total of two patents to her name, she has made significant advancements in optical pickup systems and information recording and reproducing apparatuses. Her work has had a considerable impact on the field of optical media.

Latest Patents

Eriko Tatsu's latest patents include an innovative optical pickup that features a light source and an optical system designed to irradiate a recording medium with light. This system incorporates a diffraction optical element that divides and diffracts light reflected from the recording medium into multiple optical fluxes. The optical detector within this system is equipped with a light receiving element that detects focus error signals, ensuring precise data retrieval from the recording medium.

Another notable patent involves an optical pickup that allows for the adjustment of the relative position between a diffracting optical element and a photodetector through feedback control. This system utilizes signals generated from various kinds of diffracted light, enhancing the accuracy of data reading from optical discs. The photodetector is strategically placed to receive light from the central region of the diffracting optical element, enabling it to compute and isolate the reflected stray light component from out-of-focus layers.

Career Highlights

Eriko Tatsu is currently employed at Hitachi Media Electronics Co., Ltd., where she continues to develop cutting-edge optical technologies. Her work has been instrumental in advancing the capabilities of optical media devices, contributing to the efficiency and effectiveness of data storage and retrieval systems.

Collaborations

Throughout her career, Eriko has collaborated with notable colleagues, including Shigeharu Kimura and Tomoto Kawamura. These partnerships have fostered innovation and have played a crucial role in the development of her patented technologies.

Conclusion

Eriko Tatsu's contributions to optical technology exemplify her dedication to innovation in the field. Her patents reflect a deep understanding of optical systems and their applications, solidifying her status as a leading inventor in this domain.