Junichi Motojima

Title: Junichi Motojima: Innovator in Exposure Technology

Introduction

Junichi Motojima is a prominent inventor based in Utsunomiya, Japan. He has made significant contributions to the field of exposure technology, holding a total of 7 patents. His work primarily focuses on developing advanced exposure apparatuses and methods that enhance manufacturing processes.

Latest Patents

Motojima's latest patents include an exposure apparatus, exposure method, and article manufacturing method. The exposure apparatus is designed for projecting a pattern of an original onto a substrate using a projection optical system. This innovative apparatus features a stage that moves while holding the substrate, a measurement device that performs height position measurements at multiple points in the exposure region, and a controller that adjusts the stage's position based on measurement results. This design aims to minimize the shift in height position relative to the image plane of the projection optical system. Additionally, he has developed a control apparatus for position control of moving objects, which utilizes feedforward control to enhance precision in manufacturing processes.

Career Highlights

Motojima is associated with Canon Kabushiki Kaisha, a leading company in imaging and optical products. His work at Canon has allowed him to push the boundaries of exposure technology, contributing to advancements that are crucial for modern manufacturing.

Collaborations

Throughout his career, Motojima has collaborated with notable colleagues, including Mitsuhide Nishimura and Masatoshi Endo. These collaborations have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Junichi Motojima's contributions to exposure technology exemplify the impact of innovative thinking in manufacturing. His patents and work at Canon continue to influence the industry, showcasing the importance of precision and advancement in technology.