Company Filing History:
2 out of 816 
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1 out of 1,623 
Years Active: 2008-2011
Title: Innovations of Bong-Shik Song
Introduction
Bong-Shik Song is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of photonic crystals, holding a total of 3 patents. His work focuses on enhancing optical technologies through innovative designs and applications.
Latest Patents
One of his latest patents is a two-dimensional photonic crystal resonator. This invention aims to provide a resonator with a high Q-value, featuring a slab-shaped body with cyclically arranged holes. The body is divided into three areas, with holes arranged at different cycle distances. This design allows for the propagation of light within a specific wavelength band, effectively confining rays of light to resonate within the waveguide.
Another significant patent is for a two-dimensional photonic crystal and optical function element. This invention is designed for optical path changeover switches, enabling the switching of light paths. It involves creating areas with different hole sizes and periods, along with a main waveguide that crosses the boundary between these areas. By heating one area, the refractive index changes, allowing for selective light extraction based on the heating status.
Career Highlights
Bong-Shik Song has worked with prestigious institutions such as Kyoto University and the Japan Science and Technology Agency. His research has contributed to advancements in optical technologies and photonic applications.
Collaborations
He has collaborated with notable colleagues, including Susumu Noda and Takashi Asano. Their joint efforts have furthered the understanding and development of photonic technologies.
Conclusion
Bong-Shik Song's innovative work in photonic crystals and optical technologies showcases his expertise and contributions to the field. His patents reflect a commitment to advancing optical applications, making him a significant figure in the realm of inventions.