Masahiko Umeda

Title: Masahiko Umeda: Innovator in Plasma Display Technology

Introduction

Masahiko Umeda is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of plasma display technology. With a total of 3 patents to his name, Umeda has focused on enhancing the performance and longevity of plasma display panels.

Latest Patents

One of Umeda's latest patents addresses the issue of color temperature changes in plasma display devices. The initial color temperature setting can change when a plasma display panel (PDP) is driven for an extended period. This change is primarily due to the non-uniform deterioration of red, green, and blue fluorescent materials caused by ultraviolet rays emitted during the panel's operation. Umeda's innovation involves performing color temperature correction by adjusting the number of discharge pulses for fluorescent materials based on a discharge pulse number correction curve. This curve is related to the cumulative elapsed driven time of the PDP.

Career Highlights

Masahiko Umeda is currently employed at Hitachi, Ltd., where he continues to develop advanced technologies in the field of display systems. His work has been instrumental in improving the quality and reliability of plasma displays, making them more efficient for consumers.

Collaborations

Umeda has collaborated with several talented individuals in his field, including Hidenao Kubota and Masatoshi Sudo. These collaborations have fostered innovation and have contributed to the success of their projects.

Conclusion

Masahiko Umeda's contributions to plasma display technology highlight his role as a key innovator in the industry. His patents reflect a commitment to enhancing display performance and addressing challenges faced by users. Umeda's work continues to influence the future of display technologies.