Takayuki Ueda

Title: Takayuki Ueda: Innovator in Oxynitride Phosphor Technology

Introduction

Takayuki Ueda is a prominent inventor based in Ube, Japan. He has made significant contributions to the field of materials science, particularly in the development of oxynitride phosphor powders. With a total of 6 patents to his name, Ueda's work has implications for various applications in lighting and display technologies.

Latest Patents

Ueda's latest patents focus on the production and properties of oxynitride phosphor powders. One of his notable inventions is an oxynitride phosphor powder that exhibits a fluorescence peak wavelength of 587 to 630 nm, along with a high external quantum efficiency. The method for producing this phosphor involves mixing silicon nitride powder with various sources of aluminum, calcium, and europium, followed by firing the mixture in specific atmospheric conditions. Another patent details a composition represented by the formula CaEuSiAlON, which is achieved through a similar mixing and firing process.

Career Highlights

Ueda is currently employed at Ube Industries, Inc., where he continues to innovate in the field of phosphor materials. His work has not only advanced the understanding of oxynitride compounds but has also paved the way for new applications in the industry.

Collaborations

Ueda has collaborated with notable colleagues such as Masataka Fujinaga and Shinsuke Jida. Their combined expertise has contributed to the successful development of Ueda's innovative technologies.

Conclusion

Takayuki Ueda's contributions to the field of oxynitride phosphor technology highlight his role as a leading inventor. His patents and ongoing work at Ube Industries, Inc. continue to influence advancements in materials science.