Inventor · disambiguated record
Wataru Imajuku
Also filed as: IMAJUKU WATARU
16 granted patents·4 pending applications·163 citations·filing 1999–2016
93Inventor score
Top patents by PatentIndex Score
20 records- 0188US6867903B2Optical parametric circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2001·Granted Mar 15, 2005·34 cites·14 claims
- 0282US10615868B2Communication system and fault detection methodNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Apr 7, 2020·4 cites·9 claims
- 0382US10511381B2Communication system and fault location specifying methodNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Dec 17, 2019·4 cites·4 claims
- 0477US7313328B2Node used in photonic network, and photonic networkNIPPON TELEGRAPH & TELEPHONE·Filed 2003·Granted Dec 25, 2007·16 cites·8 claims
- 0573US7012740B2Optical parametric circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2004·Granted Mar 14, 2006·12 cites·11 claims
- 0670US7313094B2Node, an optical/electrical path integrated network using the node, and a program which controls the nodeNIPPON TELEGRAPH & TELEPHONE·Filed 2003·Granted Dec 25, 2007·16 cites·44 claims
- 0770US6370169B1Method and apparatus for controlling optical wavelength based on optical frequency pullingNIPPON TELEGRAPH & TELEPHONE·Filed 1999·Granted Apr 9, 2002·29 cites·13 claims
- 0867US7333424B2Upper layer node, lower layer node, and node control methodNIPPON TELEGRAPH & TELEPHONE·Filed 2003·Granted Feb 19, 2008·7 cites·153 claims
- 0966US10527781B2Communication system and connectorNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Jan 7, 2020·1 cites·19 claims
- 1066US7289730B2Optical path communication network, node, and optical path setup methodNIPPON TELEGRAPH & TELEPHONE·Filed 2003·Granted Oct 30, 2007·11 cites·45 claims
- 1165US8134920B2Device and method for correcting a path trouble in a communication networkIMAJUKU WATARU·Filed 2004·Granted Mar 13, 2012·16 cites·17 claims
- 1261US7023887B2Method and system for controlling optical wavelength based on optical frequency pullingNIPPON TELEGRAPH & TELEPHONE·Filed 2005·Granted Apr 4, 2006·2 cites·8 claims
- 1360US6909732B2Method and apparatus for controlling optical wavelength based on optical frequency pullingNIPPON TELEGRAPH & TELEPHONE·Filed 2002·Granted Jun 21, 2005·6 cites·3 claims
- 1446US11108208B2Optical amplification system and optical amplification methodNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Aug 31, 2021·0 cites·8 claims
- 1546US6560007B2Bit-phase synchronized optical pulse stream local generatorNIPPON TELEGRAPH & TELEPHONE·Filed 2001·Granted May 6, 2003·5 cites·24 claims
- 1642US2003147645A1Optical network, optical cross-connect apparatus, photonic-IP network, and nodeFiled 2003·Application pending·0 cites
- 1741US10686520B2Transmission quality estimation system, transmission quality estimation device, and transmission quality estimation methodNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Jun 16, 2020·0 cites·17 claims
- 1835US2001017866A1Ultra-highspeed packet transfer ring networkFiled 2001·Application pending·0 cites
- 1935US2018375579A1Communication system and connectorNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Application pending·0 cites
- 2035US2018343067A1Node and optical power supply systemNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →