Inventor
CHOI YONG-GYU
KR17 patents
⚠️ This page may combine multiple inventors who share the name “CHOI YONG-GYU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOREA ELECTRONICS TELECOMM
13 patentsUS6583927B2Jun 24, 2003
Optical amplifier incorporating therein holmium-doped optical fiber
KOREA ELECTRONICS TELECOMM19 citations92
US6459846B1Oct 1, 2002
Complex rare-earths doped optical waveguide
KOREA ELECTRONICS TELECOMM22 citations92
US6413891B1Jul 2, 2002
Glass material suitable for a waveguide of an optical amplifier
KOREA ELECTRONICS TELECOMM41 citations92
US6916753B2Jul 12, 2005
Tm3+-doped silicate glass and the use thereof
KOREA ELECTRONICS TELECOMM6 citations73
US6490082B2Dec 3, 2002
Optical amplifier
KOREA ELECTRONICS TELECOMM7 citations73
US6404788B1Jun 11, 2002
Cr and Yb codoped optical material systems for enhanced infrared fluorescence emission and their application schemes
KOREA ELECTRONICS TELECOMM9 citations73
US6845185B2Jan 18, 2005
High-speed wavelength channel selector and high-speed photonic integrated circuit-type space and wavelength multiplexed channel selector employing the same
KOREA ELECTRONICS TELECOMM3 citations63
US6654520B2Nov 25, 2003
Periodically poled optical fiber and method for the manufacture thereof
KOREA ELECTRONICS TELECOMM5 citations63
US6853480B2Feb 8, 2005
Optical amplifier
KOREA ELECTRONICS TELECOMM3 citations62
US6625361B2Sep 23, 2003
Method for forming two thin conductive films isolated electrically from each other on a fiber
KOREA ELECTRONICS TELECOMM6 citations62
US6549330B1Apr 15, 2003
Optical gain fiber doped with rare earth ions
KOREA ELECTRONICS TELECOMM4 citations62
US6538804B1Mar 25, 2003
Planar waveguide-type optical amplifier switch
KOREA ELECTRONICS TELECOMM2 citations62
US6873774B2Mar 29, 2005
Transmission optical fiber
KOREA ELECTRONICS TELECOMM0 citations52
CHOI YONG-GYU
2 patentsUS9165934B2Oct 20, 2015
Semiconductor devices including insulating extension patterns between adjacent landing pads and methods of fabricating the same
CHOI YONG-GYU13 citations81
US9530729B2Dec 27, 2016
Semiconductor devices including insulating extension patterns between adjacent landing pads and methods of fabricating the same
CHOI YONG-GYU4 citations70