Inventor
UCHIYAMA KENTARO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “UCHIYAMA KENTARO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
6 patentsUS6204944B1Mar 20, 2001
All-optical time-division demultiplexing circuit and all-optical TDM-WDM conversion circuit
NIPPON TELEGRAPH & TELEPHONE61 citations95
US5357359AOct 18, 1994
All-optical polarization independent optical time division multiplexer and demultiplexer with birefringence compensation
NIPPON TELEGRAPH & TELEPHONE59 citations94
US6587242B1Jul 1, 2003
Optical transmission system
NIPPON TELEGRAPH & TELEPHONE48 citations90
US7200328B2Apr 3, 2007
Method and system for determining origin of optical signal quality degradation
NIPPON TELEGRAPH & TELEPHONE12 citations83
US7024122B2Apr 4, 2006
Ultrahigh-speed clock extraction circuit
NIPPON TELEGRAPH & TELEPHONE6 citations62
US6560007B2May 6, 2003
Bit-phase synchronized optical pulse stream local generator
NIPPON TELEGRAPH & TELEPHONE5 citations61