Inventor
SAKUYAMA HIROSHI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “SAKUYAMA HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
6 patentsUS5479424ADec 26, 1995
Optical modulating and amplifying apparatus capable of achieving modulation with high signal-to-noise ratio
NEC CORP21 citations91
US5861975AJan 19, 1999
Wavelength stability circuit
NEC CORP17 citations83
US5729373AMar 17, 1998
Reproducing circuit of monitor signal
NEC CORP18 citations83
US6236776B1May 22, 2001
Submarine optical gain equalizer, submarine optical transmission line and its installation method
NEC CORP8 citations72
US6472655B1Oct 29, 2002
Remote amplifier for an optical transmission system and method of evaluating a faulty point
NEC CORP3 citations61
US6366718B2Apr 2, 2002
Submarine optical gain equalizer, submarine optical transmission line and its installation method
NEC CORP4 citations61