P

Inventor

KUWABARA KEI

JP18 patents
⚠️ This page may combine multiple inventors who share the name “KUWABARA KEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON TELEGRAPH & TELEPHONE

14 patents
US11672462B2Jun 13, 2023

Measurement control apparatus and measurement control method

NIPPON TELEGRAPH & TELEPHONE0 citations61
US10918302B2Feb 16, 2021

Biological signal processing method and biological signal processing apparatus

NIPPON TELEGRAPH & TELEPHONE1 citations61
US10881315B2Jan 5, 2021

Biological signal measurement system, biological information measurement apparatus, and biological information extraction algorithm changing method

NIPPON TELEGRAPH & TELEPHONE1 citations60
US11324435B2May 10, 2022

Heartbeat detection method and heartbeat detection device

NIPPON TELEGRAPH & TELEPHONE0 citations51
US11076793B2Aug 3, 2021

Respiration estimation method and apparatus

NIPPON TELEGRAPH & TELEPHONE0 citations51
US10945623B2Mar 16, 2021

Heartbeat detection method and heartbeat detection device

NIPPON TELEGRAPH & TELEPHONE0 citations51
US12276552B2Apr 15, 2025

Wearable environmental sensor device and monitoring system

NIPPON TELEGRAPH & TELEPHONE0 citations50
US12174662B2Dec 24, 2024

Wearable sensor device and monitoring system

NIPPON TELEGRAPH & TELEPHONE0 citations50
US11957188B2Apr 16, 2024

Wearable device, and sensor device

NIPPON TELEGRAPH & TELEPHONE0 citations50
US11406309B2Aug 9, 2022

Heartbeat rate calculation device and method

NIPPON TELEGRAPH & TELEPHONE0 citations50
US11234613B2Feb 1, 2022

Respiration estimation method and apparatus

NIPPON TELEGRAPH & TELEPHONE0 citations47
US10254625B2Apr 9, 2019

Optical signal processing device

NIPPON TELEGRAPH & TELEPHONE0 citations40
US10750969B2Aug 25, 2020

Heartbeat detection method and heartbeat detection device

NIPPON TELEGRAPH & TELEPHONE0 citations39
US10172531B2Jan 8, 2019

Heartbeat detection method and heartbeat detection device

NIPPON TELEGRAPH & TELEPHONE0 citations39

NTT INC

4 patents