Inventor · disambiguated record
Koji Nakamuta
Also filed as: NAKAMUTA KOJI
14 granted patents·3 pending applications·102 citations·filing 2000–2014
91Inventor score
Top patents by PatentIndex Score
17 records- 0191US8649689B2Digital coherent receiving apparatusKOIZUMI NOBUKAZU·Filed 2010·Granted Feb 11, 2014·20 cites·7 claims
- 0284US8536911B1PLL circuit, method of controlling PLL circuit, and digital circuitFUJITSU LTD·Filed 2013·Granted Sep 17, 2013·7 cites·7 claims
- 0383US8693898B2Adaptive equalizer, optical receiver, and tap coefficient correcting methodKOIZUMI NOBUKAZU·Filed 2011·Granted Apr 8, 2014·8 cites·20 claims
- 0482US8183940B2Temperature control deviceKOYAMA YOSHITO·Filed 2009·Granted May 22, 2012·21 cites·4 claims
- 0576US6300841B1Atomic oscillator utilizing a high frequency converting circuit and an active, low-integral-number multiplierFUJITSU LTD·Filed 2000·Granted Oct 9, 2001·25 cites·27 claims
- 0672US8436665B2Digital PLL circuit and clock generating methodNAKAMUTA KOJI·Filed 2012·Granted May 7, 2013·4 cites·17 claims
- 0772US7417477B2PLL circuitFUJITSU LTD·Filed 2007·Granted Aug 26, 2008·8 cites·8 claims
- 0867US7368962B2Clock supply deviceFUJITSU LTD·Filed 2006·Granted May 6, 2008·6 cites·5 claims
- 0951US9444554B2Digital coherent receiving apparatusFUJITSU LTD·Filed 2013·Granted Sep 13, 2016·0 cites·6 claims
- 1051US8488062B2Analog-digital converting apparatus and clock signal output apparatusNAKAMUTA KOJI·Filed 2010·Granted Jul 16, 2013·1 cites·8 claims
- 1147US9496966B2Optical communication receiving device and frequency offset compensation methodFUJITSU LTD·Filed 2014·Granted Nov 15, 2016·0 cites·5 claims
- 1247US7330057B2DPLL circuit having holdover functionFUJITSU LTD·Filed 2006·Granted Feb 12, 2008·1 cites·3 claims
- 1346US7664217B2Digital PLL circuitFUJITSU LTD·Filed 2005·Granted Feb 16, 2010·1 cites·3 claims
- 1438US2009295490A1Dds circuit and electronic device having the sameFUJITSU LTD·Filed 2009·Application pending·0 cites
- 1537US7355457B2Frequency synthesizerFUJITSU LTD·Filed 2005·Granted Apr 8, 2008·0 cites·19 claims
- 1635US2013063183A1Signal generating apparatus and method of generating signalNAKANE YOSHINORI·Filed 2012·Application pending·0 cites
- 1729US2001035795A1Rubidium atom oscillatorFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →