Inventor · disambiguated record
Hiroaki Katsurai
Also filed as: KATSURAI HIROAKI
15 granted patents·9 pending applications·10 citations·filing 2011–2024
85Inventor score
Top patents by PatentIndex Score
24 records- 0177US2025047253A1Transimpedance amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2024·Application pending·0 cites
- 0273US10243664B2Optical modulator driver circuit and optical transmitterNIPPON TELEGRAPH & TELEPHONE·Filed 2014·Granted Mar 26, 2019·5 cites·13 claims
- 0370US9082543B2InductorOHTOMO YUSUKE·Filed 2011·Granted Jul 14, 2015·4 cites·8 claims
- 0453US12160211B2Transimpedance amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Dec 3, 2024·0 cites·6 claims
- 0551US9083476B2Signal multiplexing deviceKATSURAI HIROAKI·Filed 2012·Granted Jul 14, 2015·1 cites·19 claims
- 0650US12389141B2Optical communication system, control method and optical subscriber line terminal apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Aug 12, 2025·0 cites·6 claims
- 0750US12155358B2Transimpedance amplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Nov 26, 2024·0 cites·8 claims
- 0849US12308890B2Optical power reception apparatus, communication apparatus and optical power reception methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted May 20, 2025·0 cites·5 claims
- 0949US10637207B2Directly modulated laser drive circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2017·Granted Apr 28, 2020·0 cites·8 claims
- 1049US2025133503A1Communication apparatus and communication control methodNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 1149US2025246940A1Switch control apparatus, light feeding system and switch control methodNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 1248US12381633B2Optical power supply system, optical power supply method and power receiving optical communication apparatusNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Aug 5, 2025·0 cites·18 claims
- 1348US2025300499A1Communication apparatus, optical power supply system and optical power supply methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 1448US2025150171A1Optical transceiver, communication apparatus and power supply control methodNIPPON TELEGRAPH & TELEPHONE·Filed 2022·Application pending·0 cites
- 1547US12316385B2Optical power supply system, wakeup method and optical communication device on the receiving sideNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted May 27, 2025·0 cites·17 claims
- 1647US11056209B2Track-and-hold circuitNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted Jul 6, 2021·0 cites·4 claims
- 1747US2025008439A1Communication system and control methodNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 1845US12368517B2Optical power supply system, power receiving side optical communication device and power supply methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jul 22, 2025·0 cites·8 claims
- 1945US2024275496A1Light feeding apparatus and light feeding methodNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2044US12294415B2Optical power supply system, power receiving side optical communication device and data transfer methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted May 6, 2025·0 cites·15 claims
- 2144US2024380496A1Optical communication device and sleep control methodNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2243US12470306B2Optical power supply system, sleep control method and power receiving optical communication apparatusNTT INC·Filed 2020·Granted Nov 11, 2025·0 cites·15 claims
- 2342US10892716B2AmplifierNIPPON TELEGRAPH & TELEPHONE·Filed 2016·Granted Jan 12, 2021·0 cites·14 claims
- 2441US2024275497A1Communication system, communication apparatus, and communication methodNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →