Inventor
RYU SHIRO
JP16 patents
⚠️ This page may combine multiple inventors who share the name “RYU SHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOKUSAI DENSHIN DENWA CO LTD
12 patentsUS5793512AAug 11, 1998
Optical communication system
KOKUSAI DENSHIN DENWA CO LTD73 citations95
US6185020B1Feb 6, 2001
Apparatus for detecting a fault location in an optical fiber line
KOKUSAI DENSHIN DENWA CO LTD50 citations92
US5940197AAug 17, 1999
Optical add-drop device
KOKUSAI DENSHIN DENWA CO LTD40 citations92
US5898719AApr 27, 1999
Optical frequency stabilizer
KOKUSAI DENSHIN DENWA CO LTD21 citations92
US5463461AOct 31, 1995
Coherent optical receiver having optically amplified local oscillator signal
KOKUSAI DENSHIN DENWA CO LTD45 citations92
US5387992AFeb 7, 1995
Optical frequency multiplex carrier control system
KOKUSAI DENSHIN DENWA CO LTD34 citations92
US4984884AJan 15, 1991
Method for measuring dispersion characteristics of an optical fiber
KOKUSAI DENSHIN DENWA CO LTD40 citations90
US6201599B1Mar 13, 2001
Optical transmission line monitoring apparatus
KOKUSAI DENSHIN DENWA CO LTD17 citations84
US4977564ADec 11, 1990
Controller for semiconductor laser light source
KOKUSAI DENSHIN DENWA CO LTD20 citations78
US5140452AAug 18, 1992
Long-distance high-speed optical communication scheme
KOKUSAI DENSHIN DENWA CO LTD10 citations74
US4888817ADec 19, 1989
Polarization diversity light receiving system using baseband combining
KOKUSAI DENSHIN DENWA CO LTD17 citations73
US5912756AJun 15, 1999
Light receiving device
KOKUSAI DENSHIN DENWA CO LTD4 citations62