Gil Wan Chang

Title: Discovering the Innovations of Inventor Gil Wan Chang

Introduction

Gil Wan Chang is an accomplished inventor based in Cheongju-si, South Korea. He holds two notable patents that reflect his expertise in creating advanced materials and their applications in various industries. His innovations primarily focus on pearlescent pigments and alpha-alumina crystals, showcasing his commitment to enhancing material science.

Latest Patents

One of Gil Wan Chang’s latest inventions is the "Pearlescent pigments with large aspect ratio and a method of their preparation." This invention pertains to pearlescent pigments formed by coating metals or metal precursors on flaky alpha-alumina crystals. These crystals are synthesized using an aqueous solution comprising aluminum and zinc precursors, which yield particles with an average thickness of 0.5 micrometers or less and a diameter of 15 micrometers or more. The achieved aspect ratio is 50 or higher, contributing to the pigments' superior gloss and an array of colors, including silver, gold, red, purple, blue, and green.

His second noteworthy patent is "Flaky alpha-alumina crystals with large aspect ratio and its preparation method." This invention involves flaky alpha-alumina crystals that consist of aluminum oxide, zinc oxide, and tin oxide. The preparation method includes hydrolyzing a mixed gel from an aluminum precursor solution, followed by aging, drying, and crystallization. The resulting crystals exhibit an average particle thickness of 0.5 micrometers or less, a diameter of 30 micrometers or more, and an aspect ratio exceeding 100, making them suitable for high-quality pearlescent pigments, abrasives, and ceramic materials.

Career Highlights

Gil Wan Chang has contributed significantly to the field of material science through his work in reputable organizations. He has been associated with the Korea Research Institute of Chemical Technology and Cqv Co., Ltd., where he has applied his innovative ideas to practical applications in industry. His versatile experience in research and development has propelled advancements in the use of pigments and ceramic materials.

Collaborations

Throughout his career, Gil Wan Chang has had the opportunity to collaborate with other talented professionals, including Jung Min Lee and Jeong Kwon Suh. These collaborations have likely broadened his perspective and capabilities in the realm of materials innovation, allowing for the exchange of ideas and furthering research in the field.

Conclusion

Gil Wan Chang’s contributions to the development of pearlescent pigments and alpha-alumina crystals exemplify the vital role of inventors in advancing material science. With a focus on creating high-quality innovative materials, his work not only enhances aesthetic applications but also serves practical purposes across various industries. The inventions granted to him stand as a testament to his creativity and dedication to innovation in chemistry and engineering.