Inventor · disambiguated record
Akihiko Isomura
Also filed as: ISOMURA AKIHIKO
17 granted patents·4 pending applications·171 citations·filing 1984–2010
94Inventor score
Top patents by PatentIndex Score
21 records- 0193US7277608B2Optical transmitterFUJITSU LTD·Filed 2006·Granted Oct 2, 2007·22 cites·11 claims
- 0291US7792428B2Optical add/drop multiplexerFUJITSU LTD·Filed 2005·Granted Sep 7, 2010·12 cites·13 claims
- 0389US7853148B2Optical add/drop multiplexerFUJITSU LTD·Filed 2009·Granted Dec 14, 2010·10 cites·19 claims
- 0485US8131152B2Optical add/drop multiplexerAKIYAMA YUICHI·Filed 2010·Granted Mar 6, 2012·5 cites·19 claims
- 0583US7676162B2Phase monitor used in optical receiverFUJITSU LTD·Filed 2006·Granted Mar 9, 2010·11 cites·9 claims
- 0681US7711270B2Optical node and optical add/drop multiplexerFUJITSU LTD·Filed 2005·Granted May 4, 2010·8 cites·11 claims
- 0780US7877025B2Phase monitor apparatus, phase control apparatus and methods thereof for optical DQPSK receiverFUJITSU LTD·Filed 2006·Granted Jan 25, 2011·8 cites·39 claims
- 0879US7860408B2Interferometer for demodulating differential M-phase shift keying signalFUJITSU LTD·Filed 2007·Granted Dec 28, 2010·9 cites·2 claims
- 0979US7684713B2Phase control apparatus and optical DQPSK receiverFUJITSU LTD·Filed 2006·Granted Mar 23, 2010·9 cites·15 claims
- 1075US4539113AFluororesin filterSUMITOMO ELECTRIC INDUSTRIES·Filed 1984·Granted Sep 3, 1985·32 cites·16 claims
- 1170US7689074B2Optical reception apparatus compatible with DQPSK polarization multiplexing formatFUJITSU LTD·Filed 2008·Granted Mar 30, 2010·3 cites·12 claims
- 1264US4844953AElastic roller for fixing and method of producing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1988·Granted Jul 4, 1989·13 cites·15 claims
- 1362US7616900B2Optical signal degradation compensatorFUJITSU LTD·Filed 2004·Granted Nov 10, 2009·5 cites·10 claims
- 1461US7933522B2Optical signal transmission system and optical signal transmission methodFUJITSU LTD·Filed 2007·Granted Apr 26, 2011·2 cites·10 claims
- 1551US7613366B2Polarization mode dispersion compensator and polarization mode dispersion compensating methodFUJITSU LTD·Filed 2004·Granted Nov 3, 2009·2 cites·13 claims
- 1650US5080001AResin molded product, method of producing same, and air vent device using sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Jan 14, 1992·13 cites·10 claims
- 1745US2008158644A1Polarization scrambler apparatus, transmission apparatus, repeating installation and polarization scrambler methodFUJITSU LTD·Filed 2007·Application pending·0 cites
- 1844US2006013592A1Polarization mode dispersion compensation apparatus and method thereof in light wavelength division multiplexing transmission systemFUJITSU LTD·Filed 2004·Application pending·0 cites
- 1942US2006245680A1Polarization mode dispersion compensator and method thereofRASMUSSEN JENS C·Filed 2003·Application pending·0 cites
- 2036US2010278528A1Coherent optical receiverFUJITSU LTD·Filed 2010·Application pending·0 cites
- 2131US4822615AAntithrombic resin compositionSUMITOMO ELECTRIC INDUSTRIES·Filed 1986·Granted Apr 18, 1989·7 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →