Inventor
KATSURAI HIROAKI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “KATSURAI HIROAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
12 patentsUS10243664B2Mar 26, 2019
Optical modulator driver circuit and optical transmitter
NIPPON TELEGRAPH & TELEPHONE5 citations71
US12160211B2Dec 3, 2024
Transimpedance amplifier
NIPPON TELEGRAPH & TELEPHONE0 citations60
US12155358B2Nov 26, 2024
Transimpedance amplifier
NIPPON TELEGRAPH & TELEPHONE0 citations60
US12308890B2May 20, 2025
Optical power reception apparatus, communication apparatus and optical power reception method
NIPPON TELEGRAPH & TELEPHONE0 citations59
US10892716B2Jan 12, 2021
Amplifier
NIPPON TELEGRAPH & TELEPHONE0 citations58
US12389141B2Aug 12, 2025
Optical communication system, control method and optical subscriber line terminal apparatus
NIPPON TELEGRAPH & TELEPHONE0 citations57
US12368517B2Jul 22, 2025
Optical power supply system, power receiving side optical communication device and power supply method
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12316385B2May 27, 2025
Optical power supply system, wakeup method and optical communication device on the receiving side
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12294415B2May 6, 2025
Optical power supply system, power receiving side optical communication device and data transfer method
NIPPON TELEGRAPH & TELEPHONE0 citations51
US11056209B2Jul 6, 2021
Track-and-hold circuit
NIPPON TELEGRAPH & TELEPHONE0 citations51
US12381633B2Aug 5, 2025
Optical power supply system, optical power supply method and power receiving optical communication apparatus
NIPPON TELEGRAPH & TELEPHONE0 citations50
US10637207B2Apr 28, 2020
Directly modulated laser drive circuit
NIPPON TELEGRAPH & TELEPHONE0 citations50