Koji Tsukahara

Title: Koji Tsukahara: Innovator in Polygon Scanner Technology

Introduction

Koji Tsukahara is a notable inventor based in Sagamihara, Japan. He has made significant contributions to the field of optical technology, particularly through his innovative designs and patents. With a total of 2 patents, Tsukahara has established himself as a key figure in the development of advanced scanning technologies.

Latest Patents

One of Tsukahara's latest patents is for a polygon scanner and its production process. This invention features a lighter rotating shaft that supports a polygon mirror, designed to prevent positional deviation during high-speed rotation. The rotating shaft is supported by a dynamic pressure air bearing on a fixed shaft, ensuring stability and precision. The materials used for the rotating shaft and polygon mirror are lightweight and matched in their coefficients of thermal expansion, such as aluminum or aluminum alloys. Additionally, an anodic oxide film is formed on the contact area between the rotating shaft and the fixed shaft, enhancing durability. The production process involves a masking technique prior to anodic oxidation, which creates a pattern of recesses and protrusions essential for dynamic pressure generation.

Career Highlights

Throughout his career, Koji Tsukahara has worked with prominent companies, including Ricoh Company, Ltd. and Tohoku Ricoh Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to cutting-edge technology in the optical field.

Collaborations

Tsukahara has collaborated with notable colleagues, including Mitsuo Suzuki and Yukio Itami. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Koji Tsukahara's contributions to polygon scanner technology highlight his expertise and innovative spirit. His patents reflect a commitment to advancing optical technology, making him a significant figure in the field.