Kwang-min Lee

Title: Innovations of Kwang-min Lee in Electron Tube Technology

Introduction

Kwang-min Lee is a notable inventor based in Suwon, South Korea. He has made significant contributions to the field of electron tube technology, holding a total of five patents. His work focuses on enhancing the performance and longevity of cathodes used in electron tubes.

Latest Patents

One of his latest patents is for a cathode for an electron tube. This innovative cathode includes a layer of an electron-emitting substance that contains alkaline earth metal oxides, with specific percentages of both a lanthanum compound and a magnesium compound. The cathode is designed to be fully interchangeable with conventional oxide cathodes while offering a 15-30% longer lifespan. Another significant patent is for a direct heating cathode and the process for producing it. This cathode achieves high current density, extends the expected lifespan, and simplifies the production process. The production involves mixing powdered iridium with powdered cerium, followed by mechanical alloying and testing the electron-emitting performance of the resulting alloy pellet.

Career Highlights

Kwang-min Lee is currently employed at Samsung Display Devices Co., Ltd., where he continues to innovate in the field of electron tubes. His work has been instrumental in advancing the technology used in display devices.

Collaborations

He collaborates with talented coworkers, including Jong-seo Choi and Kyu-nam Joo, who contribute to the innovative projects at Samsung Display Devices Co., Ltd.

Conclusion

Kwang-min Lee's contributions to electron tube technology through his patents and work at Samsung Display Devices Co., Ltd. highlight his role as a leading inventor in this field. His innovations are paving the way for advancements in display technology and improving the efficiency of electron tubes.