Company Filing History:
2 out of 76 
1 out of 832,812 Years Active: 2007-2011
Title: The Innovations of Sang Ok Choi
Introduction
Sang Ok Choi is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of antenna technology, holding a total of 3 patents. His work reflects a deep understanding of electrical engineering and innovation.
Latest Patents
One of his latest patents is the Quadrifilar Helical Antenna. This invention comprises two pairs of filars with unequal lengths, designed to propagate phase quadrature signals. A conductive H-shaped impedance matching element is utilized to match the source impedance to the antenna impedance. The design includes a feed terminal at the center, supplying current to the filars, which are symmetrically arranged around the edge of the impedance matching element. Additionally, the impedance matching element incorporates a reactive element for further impedance matching.
Career Highlights
Sang Ok Choi has worked with various companies, including Skycross, Inc. His experience in the industry has allowed him to develop innovative solutions that enhance antenna performance and efficiency.
Collaborations
Throughout his career, he has collaborated with notable individuals such as Gregory A O'Neill, Jr. and Murray Fugate. These partnerships have contributed to the advancement of his inventions and the overall field of antenna technology.
Conclusion
Sang Ok Choi's contributions to antenna technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry and inspire future innovations.