Sung Hak Jo

Title: Innovations of Sung Hak Jo in Phosphor Technology

Introduction

Sung Hak Jo is a notable inventor based in Gyeongsangbuk-do, South Korea. He has made significant contributions to the field of phosphor technology, holding a total of three patents. His work primarily focuses on developing advanced materials for light-emitting devices.

Latest Patents

Sung Hak Jo's latest patents include innovations such as a red phosphor and various light-emitting apparatuses. One of his patents describes a red phosphor that incorporates a nitride represented by the formula (SrBaEu)SiN, where the parameters x and y fall within specific ranges. This red phosphor is capable of emitting light with a peak wavelength between 600 nm and 630 nm when exposed to a blue light source with a dominant wavelength ranging from 420 nm to 470 nm. Another patent details a phosphor composition and light-emitting device that includes a rare-earth element in a compound represented by the equation: LSiN. This composition is designed in particle form, featuring a flat crystal plane that enhances its light-emitting properties.

Career Highlights

Sung Hak Jo is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in the field of lighting technology. His work has contributed to advancements in display and lighting apparatuses, making significant impacts in the electronics industry.

Collaborations

He has collaborated with notable coworkers, including Chul Soo Yoon and Hyong Sik Won, to further enhance the development of phosphor technologies.

Conclusion

Sung Hak Jo's contributions to phosphor technology exemplify the innovative spirit of modern inventors. His patents reflect a commitment to advancing light-emitting devices, showcasing the potential for future developments in this field.