Inventor · disambiguated record
Daisaku Ogasahara
Also filed as: OGASAHARA DAISAKU
36 granted patents·8 pending applications·136 citations·filing 2004–2024
96Inventor score
Top patents by PatentIndex Score
44 records- 0195US10833771B2Frequency deviation compensation scheme and frequency deviation compensation methodNEC CORP·Filed 2020·Granted Nov 10, 2020·4 cites·13 claims
- 0293US11750298B2Frequency deviation compensation scheme and frequency deviation compensation methodNEC CORP·Filed 2022·Granted Sep 5, 2023·1 cites·15 claims
- 0392US7848340B2System and method for transmission of data in packet ring network systemNEC CORP·Filed 2006·Granted Dec 7, 2010·35 cites·13 claims
- 0486US7898942B2Ring network system, failure recovery method, failure detection method, node and program for nodeNEC CORP·Filed 2006·Granted Mar 1, 2011·17 cites·20 claims
- 0585US2024396640A1Frequency deviation compensation scheme and frequency deviation compensation methodNEC CORP·Filed 2024·Application pending·0 cites
- 0684US8565124B2Node, network, correspondence relationship generation method and frame transfer programUMAYABASHI MASAKI·Filed 2006·Granted Oct 22, 2013·13 cites·54 claims
- 0784US8515293B2Coherent receiverYASUDA WAKAKO·Filed 2010·Granted Aug 20, 2013·9 cites·21 claims
- 0884US7944913B2Node, communication method, and program for nodeNEC CORP·Filed 2008·Granted May 17, 2011·13 cites·18 claims
- 0982US12088350B2Frequency deviation compensation scheme and frequency deviation compensation methodNEC CORP·Filed 2023·Granted Sep 10, 2024·0 cites·15 claims
- 1079US9819525B2Signal generating apparatus and signal generating methodNEC CORP·Filed 2013·Granted Nov 14, 2017·5 cites·20 claims
- 1177US9014574B2Optical receiver, polarization demultiplexer, and optical receiving methodARIKAWA MANABU·Filed 2012·Granted Apr 21, 2015·5 cites·12 claims
- 1276US11588558B2Frequency deviation compensation scheme and frequency deviation compensation methodNEC CORP·Filed 2021·Granted Feb 21, 2023·0 cites·15 claims
- 1374US9722697B2Polarization division multiplexing optical communication reception device, polarization division multiplexing optical communication system, and polarization division multiplexing optical communication methodNEC CORP·Filed 2014·Granted Aug 1, 2017·3 cites·16 claims
- 1474US9660762B2System and method for transmitting optical signal over multiple channelsLE TAILLANDIER DE GABORY EMMANUEL·Filed 2012·Granted May 23, 2017·4 cites·20 claims
- 1574US8538263B2Optical communication system, optical receiver of same, and optical communication method of sameOGASAHARA DAISAKU·Filed 2010·Granted Sep 17, 2013·4 cites·12 claims
- 1674US7920576B2Packet ring network system, packet forwarding method and nodeNEC CORP·Filed 2006·Granted Apr 5, 2011·5 cites·25 claims
- 1772US11233575B2Frequency deviation compensation scheme and frequency deviation compensation methodNEC CORP·Filed 2020·Granted Jan 25, 2022·0 cites·15 claims
- 1870US9037004B2Optical receiver, polarization separation device and polarization separating methodOGASAHARA DAISAKU·Filed 2011·Granted May 19, 2015·3 cites·11 claims
- 1968US9473249B2Light transmission apparatus, light communication system, light reception apparatus, method for adjusting light transmission, method for transmitting light, and method for receiving lightNEC CORP·Filed 2013·Granted Oct 18, 2016·2 cites·17 claims
- 2068US8705987B2Signal processing circuit, signal processing method, optical receiver and optical communication systemOGASAHARA DAISAKU·Filed 2012·Granted Apr 22, 2014·2 cites·12 claims
- 2167US8724518B2Communication system, node, terminal, program and communication methodOGASAHARA DAISAKU·Filed 2006·Granted May 13, 2014·4 cites·11 claims
- 2266US10615882B2Frequency deviation compensation scheme and frequency deviation compensation methodNEC CORP·Filed 2019·Granted Apr 7, 2020·0 cites·13 claims
- 2366US9923641B2Signal processing device, optical communication system, and signal processing methodNEC CORP·Filed 2013·Granted Mar 20, 2018·2 cites·5 claims
- 2464US10454590B2Frequency deviation compensation scheme and frequency deviation compensation methodNEC CORP·Filed 2019·Granted Oct 22, 2019·0 cites·20 claims
- 2562US7843942B2Node and fair rate calculating methodNEC CORP·Filed 2008·Granted Nov 30, 2010·2 cites·12 claims
- 2661US10218447B2Frequency deviation compensation scheme and frequency deviation compensation methodNEC CORP·Filed 2014·Granted Feb 26, 2019·0 cites·17 claims
- 2760US8072878B2Packet ring network system, packet transfer system, redundancy node, and packet transfer programSAKAUCHI MASAHIRO·Filed 2007·Granted Dec 6, 2011·2 cites·21 claims
- 2859US2024397351A1Base station system, wireless control unit, wireless communication method, and recording mediumNEC CORP·Filed 2024·Application pending·0 cites
- 2956US9160459B2Equalization signal processor, optical receiver including the same, and method for equalization signal processingARIKAWA MANABU·Filed 2011·Granted Oct 13, 2015·1 cites·10 claims
- 3053US9246600B2Signal processing circuit, signal processing method, optical receiver and optical communication systemOGASAHARA DAISAKU·Filed 2014·Granted Jan 26, 2016·0 cites·3 claims
- 3151US9913234B2Frequency deviation compensation scheme, frequency deviation compensation method, and storage mediumNEC CORP·Filed 2014·Granted Mar 6, 2018·0 cites·12 claims
- 3251US2025158636A1Delta-sigma modulation apparatus and delta-sigma modulation methodNEC CORP·Filed 2024·Application pending·0 cites
- 3347US8094584B2Node, network system, frame transfer method, and frame transfer programUMAYABASHI MASAKI·Filed 2007·Granted Jan 10, 2012·0 cites·36 claims
- 3447US7965658B2Shortening of communication cutoff timeNEC CORP·Filed 2009·Granted Jun 21, 2011·0 cites·7 claims
- 3546US2007127367A1Communication system and communication methodOGASAHARA DAISAKU·Filed 2004·Application pending·0 cites
- 3645US9608732B2Optical transmitter, optical communication system, and optical communication methodOGASAHARA DAISAKU·Filed 2013·Granted Mar 28, 2017·0 cites·16 claims
- 3745US2011158086A1Packet ring network system, packet forwarding method and nodeSAKAUCHI MASAHIRO·Filed 2011·Application pending·0 cites
- 3844US2010226377A1Communication System, Node, Terminal and Communication Method and ProgramNEC CORP·Filed 2007·Application pending·0 cites
- 3943US9461841B2Communication system, communication method, node, and program for nodeOGASAHARA DAISAKU·Filed 2007·Granted Oct 4, 2016·0 cites·24 claims
- 4041US9485033B2Signal processing apparatus and signal processing methodYASUDA WAKAKO·Filed 2012·Granted Nov 1, 2016·0 cites·19 claims
- 4138US8693600B2Phase excursion/carrier wave frequency excursion compensation device and methodOGASAHARA DAISAKU·Filed 2011·Granted Apr 8, 2014·0 cites·10 claims
- 4238US8682174B2Optical receiver, optical communication system using the same and equalization method in the optical communication systemOGASAHARA DAISAKU·Filed 2011·Granted Mar 25, 2014·0 cites·10 claims
- 4338US2013302041A1Optical receiver and method for optical receptionMATSUI JUNICHIRO·Filed 2012·Application pending·0 cites
- 4435US2012082464A1Coherent optical receiving apparatus, coherent optical communications system employing same, and coherent optical communications methodYASUDA WAKAKO·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →