Inventor · disambiguated record
Kazuhiko Hatae
Also filed as: HATAE KAZUHIKO
14 granted patents·2 pending applications·24 citations·filing 2005–2025
86Inventor score
Top patents by PatentIndex Score
16 records- 0183US8693898B2Adaptive equalizer, optical receiver, and tap coefficient correcting methodKOIZUMI NOBUKAZU·Filed 2011·Granted Apr 8, 2014·8 cites·20 claims
- 0279US9401765B2Frequency offset estimation circuit and frequency offset estimation methodFUJITSU LTD·Filed 2014·Granted Jul 26, 2016·5 cites·8 claims
- 0371US8606118B2Optical digital coherent receiverHATAE KAZUHIKO·Filed 2011·Granted Dec 10, 2013·4 cites·10 claims
- 0468US7417792B2Optical amplification deviceFUJITSU LTD·Filed 2005·Granted Aug 26, 2008·4 cites·9 claims
- 0566US9374170B2Optical receiving deviceFUJITSU LTD·Filed 2014·Granted Jun 21, 2016·2 cites·8 claims
- 0665US10560199B2Signal processing circuit and optical receiving deviceFUJITSU LTD·Filed 2019·Granted Feb 11, 2020·1 cites·8 claims
- 0765US2025385740A1Optical receiver and optical receiving methodFUJITSU LTD·Filed 2025·Application pending·0 cites
- 0847US10931485B2Adaptive equalization circuit and optical receiverFUJITSU LTD·Filed 2020·Granted Feb 23, 2021·0 cites·9 claims
- 0947US9496966B2Optical communication receiving device and frequency offset compensation methodFUJITSU LTD·Filed 2014·Granted Nov 15, 2016·0 cites·5 claims
- 1046US10177855B2Amplitude adjustment circuit, digital coherent receiver, and amplitude adjustment methodFUJITSU LTD·Filed 2017·Granted Jan 8, 2019·0 cites·10 claims
- 1146US8677296B2Circuit design support computer product, method, and apparatusFUJITSU LTD·Filed 2013·Granted Mar 18, 2014·0 cites·9 claims
- 1244US9660733B2Signal processing apparatus, signal processing method, and signal processing systemFUJITSU LTD·Filed 2015·Granted May 23, 2017·0 cites·18 claims
- 1343US9680667B2Adaptive equalization circuit, digital coherent receiver, and adaptive equalization methodFUJITSU LTD·Filed 2016·Granted Jun 13, 2017·0 cites·12 claims
- 1441US8392485B2Signal waveform generating circuit and methodHATAE KAZUHIKO·Filed 2009·Granted Mar 5, 2013·0 cites·6 claims
- 1541US2013317802A1Method for simulating data transmission among a plurality of hardware elementsFUJITSU LTD·Filed 2013·Application pending·0 cites
- 1639US7649482B2Signal modulation method, signal modulation apparatus, electronic device, and computer program productFUJITSU LTD·Filed 2008·Granted Jan 19, 2010·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →