Jun-Hyun Han

Title: Innovative Contributions of Inventor Jun-Hyun Han

Introduction

Jun-Hyun Han, an accomplished inventor based in Seoul, South Korea, has made significant contributions to the field of technology and engineering. With three patents to his name, his work emphasizes advancements in plasma ion implantation and coil spring technology, showcasing his innovative spirit and technical expertise.

Latest Patents

One of Jun-Hyun Han’s latest patents is a method and apparatus for plasma ion implantation of a solid element. This invention discloses an apparatus and method that facilitate the implantation of solid elements through plasma ions. The process involves placing a sample on a sample stage within a vacuum chamber, which is maintained under vacuum conditions. Upon introducing gas into the chamber, a first pulsed DC power is applied to a magnetron sputtering source, generating plasma ions. These ions are subsequently implanted onto the surface of the sample. The technology enables a high momentary power application while maintaining an overall low average power. Additionally, by synchronizing a high negative voltage pulse to further accelerate the ions, the efficiency of the implantation process is significantly enhanced. Moreover, the invention involves generating inductively coupled plasma via antenna, which increases the ionization rate and lowers the operational pressure of the sputtering source.

Another groundbreaking invention by Han is a method to provide initial tension for coil springs by altering the wound direction of the spring. This method aims to deliver large and precise initial tension, enhancing the functionality of the actuator created using a shape memory alloy. The innovative design allows control over the coil spring’s shape in response to temperature variations, demonstrating exceptional versatility in application.

Career Highlights

Jun-Hyun Han currently works at the Korea Institute of Science and Technology, where his research and innovative work continue to advance the field. His expertise in engineering and technology allows him to engage in cutting-edge research, contributing to both academic and practical applications.

Collaborations

Throughout his career, Han has collaborated with notable colleagues such as Kwang-Koo Jee and Yoon-Bae Kim. These partnerships have facilitated the exchange of ideas and technological insights that enhance their collective impact on innovation and research in their respective fields.

Conclusion

Jun-Hyun Han exemplifies the spirit of innovation with his contributions to technology through valuable patents. His work not only advances scientific knowledge but also encourages future developments in engineering practices. As the industry continues to evolve, the impact of his inventions will likely pave the way for new technologies and improvements in various applications.