Inventor · disambiguated record
Fumio Futami
Also filed as: FUTAMI FUMIO
25 granted patents·8 pending applications·176 citations·filing 2001–2023
95Inventor score
Files withFUJITSU LTD24TAMAGAWA UNIV AND TAMAGAWA ACADEMY4FUTAMI FUMIO3KATO TOMOYUKI1TAMAGAWA ACADEMY & UNIV1
Top patents by PatentIndex Score
33 records- 0190US7835643B2Optical waveform measuring apparatus and optical waveform measuring methodFUJITSU LTD·Filed 2005·Granted Nov 16, 2010·21 cites·19 claims
- 0287US6751385B2Method and device for measuring the waveform of an optical signalFUJITSU LTD·Filed 2001·Granted Jun 15, 2004·34 cites·23 claims
- 0385US7978319B2Optical switching method and optical switchFUJITSU LTD·Filed 2007·Granted Jul 12, 2011·10 cites·10 claims
- 0483US7076174B2Method, device, and system for processing optical signalFUJITSU LTD·Filed 2001·Granted Jul 11, 2006·26 cites·15 claims
- 0579US8773753B2Optical amplifier and optical amplifying apparatusKATO TOMOYUKI·Filed 2011·Granted Jul 8, 2014·4 cites·14 claims
- 0679US7088491B2Pulse generating apparatus and methodFUJITSU LTD·Filed 2004·Granted Aug 8, 2006·18 cites·2 claims
- 0779US6963436B2Method and device for waveform shaping of signal lightFUJITSU LTD·Filed 2002·Granted Nov 8, 2005·19 cites·17 claims
- 0877US7853145B2Optical switch and optical waveform monitoring apparatusFUJITSU LTD·Filed 2007·Granted Dec 14, 2010·6 cites·10 claims
- 0976US7397975B2Optical switchFUJITSU LTD·Filed 2007·Granted Jul 8, 2008·4 cites·10 claims
- 1073US8190032B2Optical signal processing apparatusFUTAMI FUMIO·Filed 2008·Granted May 29, 2012·5 cites·8 claims
- 1173US7518711B2Optical waveform measurement apparatus and optical waveform measurement methodFUJITSU LTD·Filed 2006·Granted Apr 14, 2009·7 cites·16 claims
- 1271US7706649B2Optical processing device and optical processing methodFUJITSU LTD·Filed 2008·Granted Apr 27, 2010·4 cites·12 claims
- 1365US8565613B2Wavelength conversion apparatus, wavelength conversion method, and optical add/drop multiplexer using the sameFUTAMI FUMIO·Filed 2011·Granted Oct 22, 2013·2 cites·12 claims
- 1463US7315557B2Multi-wavelength light source apparatusFUJITSU LTD·Filed 2004·Granted Jan 1, 2008·5 cites·16 claims
- 1559US8428470B2Waveform shaping apparatus, optical transmission system, and waveform shaping methodFUTAMI FUMIO·Filed 2008·Granted Apr 23, 2013·2 cites·18 claims
- 1658US7433564B2Optical device for optical communicationFUJITSU LTD·Filed 2004·Granted Oct 7, 2008·4 cites·22 claims
- 1757US7643754B2Method of and apparatus for providing multi-wavelength light sourceFUJITSU LTD·Filed 2004·Granted Jan 5, 2010·3 cites·5 claims
- 1854US11894875B2Signal processing systemTAMAGAWA UNIV AND TAMAGAWA ACADEMY·Filed 2020·Granted Feb 6, 2024·0 cites·17 claims
- 1954US7136596B2Optical pulse addition deviceFUJITSU LTD·Filed 2001·Granted Nov 14, 2006·2 cites·14 claims
- 2053US12119879B2Signal processing deviceTAMAGAWA UNIV AND TAMAGAWA ACADEMY·Filed 2021·Granted Oct 15, 2024·0 cites·7 claims
- 2149US7877017B2Optical waveform measurement system and optical waveform measurement methodFUJITSU LTD·Filed 2008·Granted Jan 25, 2011·0 cites·8 claims
- 2249US2010220997A1Optical signal processing device and method of processing optical signalFUJITSU LTD·Filed 2009·Application pending·0 cites
- 2349US2025226892A1Signal processing systemTAMAGAWA UNIV AND TAMAGAWA ACADEMY·Filed 2023·Application pending·0 cites
- 2447US11863301B2Signal processing deviceTAMAGAWA ACADEMY & UNIV·Filed 2019·Granted Jan 2, 2024·0 cites·4 claims
- 2547US2010054753A1Apparatus and method for stabilizing polarization stateFUJITSU LTD·Filed 2009·Application pending·0 cites
- 2645US7953322B2Optical switch and optical switch control methodFUJITSU LTD·Filed 2007·Granted May 31, 2011·0 cites·10 claims
- 2744US6738179B2Method and device for shaping the waveform of an optical signalFUJITSU LTD·Filed 2001·Granted May 18, 2004·0 cites·24 claims
- 2843US7623792B2Clock extracting method and apparatus thereofFUJITSU LTD·Filed 2005·Granted Nov 24, 2009·0 cites·15 claims
- 2943US2004090665A1Separating apparatus for time division multiplexed signal light, and optical receiving apparatus and optical transmission system using the sameFUJITSU LTD·Filed 2003·Application pending·0 cites
- 3039US2023308267A1Signal processing systemTAMAGAWA UNIV AND TAMAGAWA ACADEMY·Filed 2020·Application pending·0 cites
- 3137US2011188800A1Optical modulation device and optical modulation methodFUJITSU LTD·Filed 2011·Application pending·0 cites
- 3236US2010142959A1Optical waveform shaping method and optical waveform shaping apparatusFUJITSU LTD·Filed 2010·Application pending·0 cites
- 3336US2010221014A1Optical fiber transmission system and methodFUJITSU LTD·Filed 2010·Application pending·0 cites
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