Kohei Fukumi

Title: Kohei Fukumi: Innovator in Optical Glass Technology

Introduction

Kohei Fukumi is a distinguished inventor based in Osaka, Japan. He has made significant contributions to the field of optical glass, holding two patents that showcase his innovative approach to material science. His work focuses on developing optical glasses with high refractive indices and low dispersion, which are essential for various precision applications.

Latest Patents

Fukumi's latest patents include advancements in optical glass formulations. One of his patents describes a PO—BaO—ZnO—NbO type optical glass that contains 25-50 wt. % PO, 15-35 wt. % BaO, 1-25 wt. % ZnO, and 3-10 wt. % NbO. This optical glass boasts a high refractive index, particularly a refractive index of 1.6 or more, low dispersion with an Abbe number of 42 or more, a low deformation point, and improved resistance to devitrification upon molding. It is suitable for precision-mold press molding and the transfer of fine structures. Another patent details an optical glass with a high refractive index of 1.6 or more, low dispersion (an Abbe number of 45 or more), and similar properties that enhance its usability in precision applications.

Career Highlights

Throughout his career, Kohei Fukumi has worked with notable organizations, including Nihon Yamamura Glass Co., Ltd. and the National Institute of Advanced Industrial Science and Technology. His experience in these institutions has allowed him to refine his expertise in optical materials and contribute to advancements in the field.

Collaborations

Fukumi has collaborated with esteemed colleagues such as Tatsuo Hidaka and Junichi Nakamura. Their joint efforts have further propelled innovations in optical glass technology.

Conclusion

Kohei Fukumi's contributions to optical glass technology highlight his role as a leading inventor in this specialized field. His patents reflect a commitment to advancing material science and enhancing the capabilities of optical applications.