Inventor
SUGIYAMA RYUTA
JP9 patents
⚠️ This page may combine multiple inventors who share the name “SUGIYAMA RYUTA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
8 patentsUS11695473B2Jul 4, 2023
Time comparison system, time comparison device, and time comparison method
NIPPON TELEGRAPH & TELEPHONE2 citations70
US11881900B2Jan 23, 2024
Transceiver, spatial light frequency transmission system and spatial light frequency transmission method
NIPPON TELEGRAPH & TELEPHONE0 citations60
US11927923B2Mar 12, 2024
Time synchronization system, management device, time synchronization method, and program
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11815552B2Nov 14, 2023
Clock frequency monitoring device and clock frequency monitoring method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11240141B2Feb 1, 2022
Time path selection device and time path selection method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11196499B2Dec 7, 2021
Time synchronization device and time synchronization method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11196533B2Dec 7, 2021
Time synchronization system and time synchronization method
NIPPON TELEGRAPH & TELEPHONE0 citations49
US11196535B2Dec 7, 2021
Time synchronization system and time synchronization method
NIPPON TELEGRAPH & TELEPHONE0 citations49