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2 out of 10 Years Active: 1988-2004
Title: Innovations by Toshiaki Ueno: A Pioneer in Thermoelectric and Electroluminescent Technologies
Introduction
Toshiaki Ueno is a notable inventor based in Yokohama, Japan, known for his groundbreaking advancements in thermoelectric materials and electroluminescent devices. With a portfolio of nine patents, Ueno's work reflects a significant contribution to the fields of material science and electronics.
Latest Patents
Ueno's latest inventions include a thermoelectric conversion material and device characterized by their low toxicity and capability to function at elevated temperatures of 500°C or higher without performance degradation. This innovative thermoelectric conversion material comprises an oxide represented by the formula (Ca M)Co O, where M is either strontium or barium, and the parameter 1.2>x>0.5.
Additionally, he has developed an electroluminescent device improved by an oxide phosphor capable of yielding high-luminance output while maintaining a simplified composition. This phosphor allows for multi-color and full-color light emissions at relatively low processing temperatures, without the necessity for treatments exceeding 1,000°C. The oxide phosphor is based on yttrium oxide as a matrix, integrated with at least one transition metal as an activator, or alternatively using Y-Ge-O or Y-Ge-Si-O oxides.
Career Highlights
Ueno's professional journey includes notable experiences at Hewlett-Packard Company and Hitachi, Ltd., where he honed his expertise in developing leading-edge technologies. His robust technical background and innovative spirit have firmly established him as a prominent figure in the realm of scientific invention.
Collaborations
Throughout his career, Toshiaki Ueno has worked alongside distinguished colleagues, including Mitsuchika Saito and Fumio Ikeuchi. These collaborations have enabled him to merge various perspectives and insights, further enriching his contributions to innovation.
Conclusion
In summary, Toshiaki Ueno's impactful inventions in thermoelectric and electroluminescent technologies demonstrate his commitment to advancing scientific understanding and practical applications. His illustrious career and impressive patent portfolio underscore his role as a pivotal innovator in contemporary material science and electronics.