Yasuo Tanahashi

Title: Yasuo Tanahashi: Innovator in Virtual Image Display Technology

Introduction

Yasuo Tanahashi is a notable inventor based in Tsurugashima, Japan. He has made significant contributions to the field of optical technology, particularly in virtual image display devices. With a total of 3 patents to his name, Tanahashi's work reflects a commitment to advancing technological innovation.

Latest Patents

One of Tanahashi's latest patents is a virtual image display device. This device includes an image forming element that creates an image to be displayed, along with an optical element that reflects light emitted from the image forming element to display a virtual image. The optical element is designed with a concave shape that opposes the direction of the light emitted, allowing the light to enter the optical element without being reflected by any other optical component. The arrangement of the image forming element is such that it is substantially orthogonal to the direction of viewing the virtual image through the optical element.

Another significant patent is for an optical pickup device and information recording/reproducing apparatus. This invention ensures reliable tracking correction and CTC even when fluctuations occur in the irradiation position of a sub-beam during tracking correction. The device generates five beams, including a main beam and several sub-beams. By receiving reflection beams from these five beams, the system can generate differential push pull signals that facilitate effective tracking error signal generation.

Career Highlights

Throughout his career, Yasuo Tanahashi has worked with prominent companies in the technology sector. He has been associated with Pioneer Corporation and Tohoku Pioneer Corporation, where he has contributed to various innovative projects. His experience in these organizations has allowed him to refine his skills and develop groundbreaking technologies.

Collaborations

Tanahashi has collaborated with notable colleagues, including Takuma Yanagisawa and Toshikazu Mabuchi. These partnerships have fostered a creative environment that has led to the development of advanced optical technologies.

Conclusion

Yasuo Tanahashi's contributions to the field of optical technology, particularly in virtual image display devices, highlight his innovative spirit and dedication to advancing technology. His patents reflect a deep understanding of optical systems and their applications, making him a significant figure in the industry.