Company Filing History:
2 out of 76 
1 out of 832,718 Years Active: 2007-2011
Title: **Inventor Profile: Joo Mun Lee**
Introduction
Joo Mun Lee, a talented inventor based in Kyunggi-do, South Korea, has made significant contributions to the field of telecommunications through his innovative designs. With a total of three patents to his name, Lee has established himself as a notable figure in the realm of antenna technology, particularly with his advancements in quadrifilar helical antennas.
Latest Patents
Joo Mun Lee's most recent patent is centered around a sophisticated quadrifilar helical antenna. This antenna features two pairs of filars with unequal lengths, allowing phase quadrature signals to propagate efficiently. A unique conductive H-shaped impedance matching element is incorporated to facilitate the matching of source impedance to antenna impedance. The design includes a feed terminal located centrally, from which current is supplied to the filars, which are symmetrically positioned around the edge of the impedance matching element. Additionally, the impedance matching element is enhanced with a reactive element to ensure optimal impedance matching between the antenna and the source.
Career Highlights
Throughout his career, Joo Mun Lee has worked with reputable companies, including Skycross, Inc., where he honed his skills and contributed to critical advancements in antenna technology. His experience in the industry has allowed him to develop groundbreaking inventions that address key challenges in telecommunications.
Collaborations
Lee has collaborated with notable professionals in his field, including Gregory A. O'Neill, Jr. and Murray Fugate. Their collective expertise in antenna design has fostered innovative solutions and elevated the quality of telecommunications equipment.
Conclusion
Joo Mun Lee stands out as a pioneering inventor whose work on quadrifilar helical antennas has significantly impacted the telecommunications industry. His innovative designs and collaborations with experienced professionals continue to shape the future of antenna technology, highlighting the importance of creativity and collaboration in driving advancements within the field.