Tomosumi Kamimura

Title: Tomosumi Kamimura: Ultraviolet Laser Invention

Introduction

Tomosumi Kamimura is an inventor associated with Osaka, Japan. His patent work includes a laser-light generation device designed to produce ultraviolet wavelengths, including deep-ultraviolet light. The available information lists 1 patent for him.

Latest Patents

Kamimura’s patent, “Ultraviolet Laser Light Generation Device,” describes systems for generating ultraviolet laser light at wavelengths of 399.08 nm and 228.04 nm. The design begins by converting 1064.2-nm laser light into 532.1-nm light. An optical parametric oscillator then uses that light to generate 798.15-nm signal light and 1596.3-nm idler light.

The patent describes two wavelength-conversion paths for producing 399.08-nm light: sum-frequency generation using the idler and 532.1-nm light, and second-harmonic generation from the signal light. A further conversion stage combines 399.08-nm and 532.1-nm light through sum-frequency generation to produce 228.04-nm light. The invention aims to provide a relatively simple, efficient source of deep-ultraviolet laser light, along with a 399.08-nm source that can serve as its foundation.

Career Highlights

The supplied career information associates Kamimura with Josho Gakuen Educational Foundation. No additional role or employment details were provided.

Collaborations

Nobuhiro Umemura and Hideharu Horikoshi are identified as Kamimura’s coworkers. The available information does not specify their roles in the patent or the invention.

Conclusion

Tomosumi Kamimura’s listed patent describes a multi-stage wavelength-conversion approach to generating ultraviolet and deep-ultraviolet laser light.