Company Filing History:
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Years Active: 1999-2010
Title: Inventor Keishin Nagaoka: Innovating Plasma Display Technology
Introduction
Keishin Nagaoka, an accomplished inventor based in Kawasaki, Japan, has made significant contributions to plasma display technology with a total of nine patents. His work primarily focuses on enhancing display quality and operational efficiency in plasma display devices.
Latest Patents
Among his latest patents, Nagaoka has developed a novel driving method for plasma display panels. This method employs a combination of a basic first waveform and a second waveform, which separates the discharge peak during a sustain operation in an ALIS PDP device. By carefully controlling these waveforms, the probability of the second waveform occurring successively is reduced to less than 20%. This approach not only ensures uniformity across different lines but also mitigates the deterioration of Vsmin.
Another noteworthy patent revolves around a method and apparatus for controlling the gray scale of a plasma display device. This method entails forming a frame for images using multiple subframes, each exhibiting different brightness levels. Sustain emissions are set in an anti-geometrical progression based on brightness, establishing a linear relationship between the gray level and its corresponding brightness. This innovation greatly enhances the display quality of plasma devices, offering viewers a more vivid visual experience.
Career Highlights
Throughout his career, Nagaoka has worked with several prestigious companies, primarily Fujitsu Corporation and Fujitsu Hitachi Plasma Display Limited. His experience in these organizations has allowed him to collaborate on various innovative projects that have helped advance plasma display technology.
Collaborations
Nagaoka has worked alongside talented colleagues in the field, including Yoshikazu Kanazawa and Tomokatsu Kishi, who is a notable female engineer. Their collaborative efforts have contributed to the development of cutting-edge technologies in plasma displays, showcasing the importance of teamwork in innovation.
Conclusion
Keishin Nagaoka's inventive contributions to plasma display technology, as reflected in his nine patents, have positioned him as a key figure in this industry. His ability to enhance display quality and operational functionality speaks to his expertise and dedication as an inventor. With continued advancements in technology, Nagaoka's work remains influential in the evolution of plasma display applications.