Location History:
- Kawasaki, JP (1994 - 2015)
- Atsugi, JP (2018 - 2023)
Company Filing History:
Years Active: 1994-2023
Title: Fumiaki Kumasaka: Innovator in Photoexcitable Materials
Introduction: Fumiaki Kumasaka, an accomplished inventor based in Atsugi, Japan, has made significant contributions to the field of materials science with a focus on photoexcitable materials. With a portfolio of six patents, Kumasaka is at the forefront of innovation, working to advance technologies that harness light for various applications.
Latest Patents: Among his latest developments, Kumasaka has patented methods for manufacturing and producing photoexcitable materials. One patent details a method for creating a photoexcitable material comprising a solid solution of manganese (where manganese is accompanied by gallium, aluminum, or indium) and zinc oxide (ZnO). This material is characterized by a composition that includes 30 to 70 mol % ZnO, achieving a band gap energy of 2.20 eV or less. Another noteworthy patent focuses on a method for producing a photoexcitation material that features a wurtzite type solid solution crystal. This innovative material contains gallium, zinc, nitrogen, and oxygen. In this patent, Kumasaka demonstrates a critical relationship between the existence ratios of adjacent atoms of gallium or zinc, as determined by an extended X-ray absorption fine structure analysis.
Career Highlights: Fumiaki Kumasaka currently holds a prominent position at Fujitsu Corporation, where he channels his expertise in material science to contribute to cutting-edge technologies. His patents reflect a deep understanding of solid-state physics and materials engineering, showcasing his ability to innovate within a competitive field.
Collaborations: Kumasaka has collaborated with notable colleagues, including Yoshihiko Imanaka and Hideyuki Amada. These partnerships have fostered a dynamic working environment that encourages creative problem-solving and the sharing of ideas in their pursuit of innovative solutions.
Conclusion: Fumiaki Kumasaka stands out as a key figure in the realm of photoexcitable materials, with a robust patent portfolio that underscores his innovative spirit. Through his work at Fujitsu Corporation and collaborations with esteemed colleagues, he continues to push the boundaries of what is possible in the field of materials science, driving forward advancements that may impact various industries across the globe.