Masaaki Doi is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of optical technology, particularly in the development of advanced light source units. With a total of 6 patents to his name, Doi's work has had a substantial impact on device manufacturing methods.

Latest Patents

Doi's latest patents include innovative technologies such as a light source unit and wavelength stabilizing control method, an exposure apparatus and exposure method, a method of making exposure apparatus, and a device manufacturing method. The light source unit features a single wavelength oscillation light source, an optical modulator that converts and emits light into pulse light, and an optical fiber group designed to amplify this pulse light. The light amount controller allows for precise control of the light output, enabling fine adjustments to the emitted pulse light's frequency or peak power. This technology ensures that the light amount can be accurately set and maintained within a predetermined range.

Career Highlights

Masaaki Doi is currently employed at Nikon Corporation, where he continues to push the boundaries of optical technology. His work has been instrumental in enhancing the stability and efficiency of light source units used in various applications.

Collaborations

Doi has collaborated with notable colleagues such as Hiroshi Ohki and Hideki Akasaka, contributing to the advancement of optical technologies through teamwork and shared expertise.

Conclusion

Masaaki Doi's innovative contributions to light source technology exemplify the importance of research and development in the field of optics. His patents reflect a commitment to enhancing device manufacturing methods and improving the stability of light sources.

Profile summary based on public USPTO records.

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