Tomohiro Katsume

Title: Tomohiro Katsume: Innovator in Exposure Technology

Introduction

Tomohiro Katsume is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of exposure technology, particularly in enhancing the fineness of patterns in photosensitive substrates. His innovative approach addresses the challenges posed by the increasing size of these substrates.

Latest Patents

Katsume holds a patent for an "Exposure method and apparatus." This invention allows for the enhancement of pattern fineness despite the trend toward larger photosensitive substrates and devices. The apparatus features a mask and a photosensitive substrate that can synchronously scan. It includes an optical projecting system equipped with a scanning direction adjusting means. This system adjusts the scanning direction of the projected image onto the substrate. A non-linear component of error is determined in advance and stored as a correction value, enabling continuous control of the image-adjusting mechanism during pattern exposure.

Career Highlights

Katsume is associated with Nikon Corporation, a leading company in imaging and optical products. His work at Nikon has allowed him to focus on advancing exposure technologies that are crucial for modern manufacturing processes.

Collaborations

Katsume collaborates with Masamitsu Yanagihara, contributing to the development of innovative solutions in the field of exposure technology.

Conclusion

Tomohiro Katsume's contributions to exposure technology exemplify the innovative spirit of modern inventors. His patent reflects a significant advancement in the ability to produce finer patterns on larger substrates, showcasing his expertise and commitment to technological progress.