Inventor · disambiguated record
Katsuhiro Araya
Also filed as: ARAYA KATSUHIRO
13 granted patents·3 pending applications·59 citations·filing 2001–2024
87Inventor score
Files withNIPPON TELEGRAPH & TELEPHONE16
Top patents by PatentIndex Score
16 records- 0184US7127168B2Multi-wavelength optical modulation circuit and wavelength-division multiplexed optical signal transmitterNIPPON TELEGRAPH & TELEPHONE·Filed 2002·Granted Oct 24, 2006·31 cites·32 claims
- 0273US11265628B2Optical transmission system and optical transmission methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Mar 1, 2022·2 cites·6 claims
- 0373US7068412B2Multi-wavelength generating method and apparatus based on flattening of optical spectrumNIPPON TELEGRAPH & TELEPHONE·Filed 2004·Granted Jun 27, 2006·9 cites·52 claims
- 0473US6924924B2Multi-wavelength generating method and apparatus based on flattening of optical spectrumNIPPON TELEGRAPH & TELEPHONE·Filed 2003·Granted Aug 2, 2005·9 cites·7 claims
- 0568US6831774B2Multi-wavelength generating method and apparatus based on flattening of optical spectrumNIPPON TELEGRAPH & TELEPHONE·Filed 2001·Granted Dec 14, 2004·8 cites·120 claims
- 0667US12326785B2Transmission side transmission device and redundancy method of transmission side transmission deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2024·Granted Jun 10, 2025·0 cites·6 claims
- 0753US12038813B2Transmitting side transmission device, receiving side transmission device, redundancy method of transmitting side transmission device, redundancy method of receiving side transmission device, program, and transmission deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jul 16, 2024·0 cites·4 claims
- 0853US2022358526A1Component information management device, component information management method, and component information management programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 0947US11251877B2Optical reception deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Feb 15, 2022·0 cites·5 claims
- 1046US11750535B2Transmitting device, receiving device, packet transfer system,packet transfer method, and packet transfer programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Sep 5, 2023·0 cites·4 claims
- 1143US11588720B2Network device and network test methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Feb 21, 2023·0 cites·8 claims
- 1242US11812205B2Optical cross-connect device, optical transmission system, and optical transmission line connection error detection methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Nov 7, 2023·0 cites·5 claims
- 1341US2021219031A1Optical cross-connect deviceNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Application pending·0 cites
- 1439US11696056B2Optical transmission system and optical transmission methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jul 4, 2023·0 cites·4 claims
- 1538US11362894B2Wiring management system and wiring management methodNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jun 14, 2022·0 cites·8 claims
- 1636US2023103537A1Communication system, network relay device, network relay method, and programNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →