Inventor · disambiguated record
Masataka Nakazawa
Also filed as: NAKAZAWA MASATAKA
22 granted patents·2 pending applications·315 citations·filing 1990–2016
95Inventor score
Files withNIPPON TELEGRAPH & TELEPHONE5JAPAN SCIENCE & TECH AGENCY4ADVANTEST CORP2ANDO ELECTRIC2HITACHI CABLE2
Top patents by PatentIndex Score
24 records- 0194US5206925ARare earth element-doped optical waveguide and process for producing the sameHITACHI CABLE·Filed 1991·Granted Apr 27, 1993·149 cites·12 claims
- 0281US7130752B2Measuring-instrument remote-calibration system and measuring-instrument remote-calibration methodNAT INST OF ADVANCED IND SCIEN·Filed 2003·Granted Oct 31, 2006·21 cites·33 claims
- 0375US7352504B2Optical fourier transform device and methodJAPAN SCIENCE & TECH AGENCY·Filed 2004·Granted Apr 1, 2008·20 cites·18 claims
- 0474US6631145B1Wavelength-tunable mode-locked laser, wavelength converter and transmission systemNIPPON TELEGRAPH & TELEPHONE·Filed 2000·Granted Oct 7, 2003·18 cites·11 claims
- 0567US7602546B2Laser oscillatorADVANTEST CORP·Filed 2007·Granted Oct 13, 2009·2 cites·9 claims
- 0664US5926492ALaser pulse oscillatorNIPPON TELEGRAPH & TELEPHONE·Filed 1997·Granted Jul 20, 1999·27 cites·14 claims
- 0759US7428096B2Optical pulse compressor, optical function generator, optical pulse compression method, and optical function generation methodJAPAN SCIENCE & TECH AGENCY·Filed 2004·Granted Sep 23, 2008·7 cites·7 claims
- 0856US6333942B1Atomic frequency standard laser pulse oscillatorNIPPON TELEGRAPH & TELEPHONE·Filed 1999·Granted Dec 25, 2001·19 cites·8 claims
- 0955US7898733B2Laser oscillatorADVANTEST CORP·Filed 2009·Granted Mar 1, 2011·0 cites·7 claims
- 1050US5134672AOptical waveguide type star couplerHITACHI CABLE·Filed 1990·Granted Jul 28, 1992·13 cites·4 claims
- 1149US7747175B2Optical transmission method and optical transmission apparatusJAPAN SCIENCE & TECH AGENCY·Filed 2004·Granted Jun 29, 2010·2 cites·4 claims
- 1249US7672593B2OTDM transmission method and apparatusJAPAN SCIENCE & TECH AGENCY·Filed 2004·Granted Mar 2, 2010·2 cites·5 claims
- 1345US7715724B2Optical synchronizerFUJITSU LTD·Filed 2005·Granted May 11, 2010·0 cites·21 claims
- 1445US6795614B2Method of making phase mask for machining optical fiber and optical fiber having bragg diffraction grating produced using the phase mask for machining optical fiberDAINIPPON PRINTING CO LTD·Filed 2001·Granted Sep 21, 2004·1 cites·12 claims
- 1544US6108465AOptical pulse generatorANDO ELECTRIC·Filed 1998·Granted Aug 22, 2000·13 cites·9 claims
- 1643US6101021AOptical pulse generatorANDO ELECTRIC·Filed 1999·Granted Aug 8, 2000·10 cites·18 claims
- 1742US8170071B2Laser apparatusNAKAZAWA MASATAKA·Filed 2009·Granted May 1, 2012·0 cites·10 claims
- 1841US2005165571A1Measuring-instrument remote-calibtration system and measuring-instrument remote-calibtration methodNAT INST OF ADVANCED IND SCIEN·Filed 2005·Application pending·0 cites
- 1940US10333280B2Semiconductor laser deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Jun 25, 2019·0 cites·15 claims
- 2040US2003056550A1Method of manufacturing photonic crystal fiberFiled 2001·Application pending·0 cites
- 2135US5583959AOptical pulse compression deviceNIPPON TELEGRAPH & TELEPHONE·Filed 1995·Granted Dec 10, 1996·6 cites·2 claims
- 2229US6466714B1Method of producing phase mask for fabricating optical fiber and optical fiber with bragg's diffraction grating produced by using the phase maskDAI NIPPON PRINTING CO LTD AND·Filed 1998·Granted Oct 15, 2002·4 cites·10 claims
- 2329US5695880ALead-containing fluoride glass, optical fiber and process for producing itSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted Dec 9, 1997·0 cites·16 claims
- 2422US5432131ALead-containing fluoride glass, optical fiber and process for producing itSUMITOMO ELECTRIC INDUSTTRIES·Filed 1993·Granted Jul 11, 1995·1 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →