Location History:
- Ansan-si, Kyounggi-do, KR (2010)
- Sejong-si, KR (2022)
Company Filing History:
1 out of 3 
1 out of 832,680 Years Active: 2010-2022
Title: Innovations by Yun Sik Hwang
Introduction
Yun Sik Hwang is a notable inventor based in Sejong-si, South Korea. He has made significant contributions to the field of optics and sports equipment, holding a total of 2 patents. His work reflects a blend of creativity and technical expertise, addressing practical needs in various industries.
Latest Patents
One of his latest patents is an optical filter with layers having a refractive index greater than 3. This optical filter includes a substrate and a first filter layer stacked on a first surface of the substrate. The first filter layer consists of a plurality of lower refractive index layers with a refractive index of less than 3, higher refractive index layers with a refractive index greater than 3, and medium refractive index layers with a refractive index of 3 or more but smaller than that of the higher refractive index layers. Notably, one higher refractive index layer and one medium refractive index layer are interposed in at least one of the regions between two lower refractive index layers.
Another innovative patent by Hwang is a head cover for golf clubs. This head cover is designed for convenient and rapid placement upon or removal from the head of a golf club. It includes a head receiving part and a shaft receiving part that extends longitudinally from the head receiving part. The shaft receiving part can take the shape of a bird bill and may comprise facing upper and lower mandibles. These mandibles are formed by two slots extending in parallel from opposite sides of an end opening to the head receiving part. A fastening member is provided on each of the upper and lower mandibles, allowing them to be detachably fastened to each other by a magnetic force, which may include magnets and a metal plate.
Career Highlights
Yun Sik Hwang has worked with various companies, including Optrontec Co., Ltd. His experience in these organizations has contributed to his development as an inventor and innovator.
Collaborations
Hwang has collaborated with notable individuals in his field, including Dong Hwan Kim and Won Young Kim. Their teamwork has likely fostered a creative environment that encourages innovation.
Conclusion
Yun Sik Hwang's contributions to the fields of optics and sports equipment demonstrate his inventive spirit and technical prowess. His patents reflect a commitment to solving real-world
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.