Hirofumi Sumoto

Title: Hirofumi Sumoto: Innovator in Fluorescent Lamp Technology

Introduction

Hirofumi Sumoto is a notable inventor based in Anan, Japan. He has made significant contributions to the field of lighting technology, particularly through his innovative designs in fluorescent lamps. His work has led to advancements that enhance the efficiency and effectiveness of lighting solutions.

Latest Patents

Hirofumi Sumoto holds a patent for a fluorescent lamp featuring an ultraviolet reflecting layer. This invention includes an ultraviolet reflecting layer made of a nonemission material primarily consisting of α-alumina, along with a light-emitting layer. The nonemission material is a white powder with an average grain size ranging from 0.05 μm to 2 μm. The design allows ultraviolet rays that pass through the light-emitting layer without being absorbed to be reflected by the ultraviolet reflecting layer, thereby increasing the excitation of the light-emitting layer and enhancing luminous flux. This innovative approach significantly improves the performance of fluorescent lamps.

Career Highlights

Hirofumi Sumoto is associated with Nichia Kagaku Kogyo K.K., a leading company in the field of lighting and materials. His work at Nichia has been instrumental in developing advanced lighting technologies that are both efficient and effective.

Collaborations

Hirofumi has collaborated with notable colleagues such as Kiyotaka Arai and Keizi Ichinomiya. These collaborations have contributed to the advancement of technology in the lighting industry.

Conclusion

Hirofumi Sumoto's contributions to fluorescent lamp technology exemplify the impact of innovative thinking in enhancing lighting solutions. His patent for a fluorescent lamp with an ultraviolet reflecting layer showcases his commitment to improving efficiency in lighting.