Inventor
GOTO TETSUZO
JP17 patents
Patents
17 patentsUS10084225B2Sep 25, 2018
Directional coupler
TDK CORP8 citations83
US9893408B2Feb 13, 2018
Directional coupler
TDK CORP7 citations83
US10276912B2Apr 30, 2019
Directional coupler
TDK CORP2 citations71
US12323122B2Jun 3, 2025
Filter circuit and multilayered filter device
TDK CORP1 citations61
US12308813B2May 20, 2025
Filter circuit and multilayered filter device
TDK CORP0 citations60
US12500323B2Dec 16, 2025
Multilayered filter device
TDK CORP0 citations59
US11431071B2Aug 30, 2022
Multilayer balun
TDK CORP0 citations50
US10965036B2Mar 30, 2021
Antenna system, antenna substrate, and antenna element
TDK CORP0 citations50
US12401108B2Aug 26, 2025
Filter circuit
TDK CORP0 citations49
US12580289B2Mar 17, 2026
Filter
TDK CORP0 citations48
US12519449B2Jan 6, 2026
Multilayer electronic component
TDK CORP0 citations48
US12348210B2Jul 1, 2025
Multilayer filter
TDK CORP0 citations48
US12341485B2Jun 24, 2025
Multilayer filter
TDK CORP0 citations48
US8384598B2Feb 26, 2013
Surface-mounted antenna, antenna device using the same, and radio communication equipment
TDK CORP1 citations46
US9391371B2Jul 12, 2016
Antenna device and wireless communication device using the same
TDK CORP1 citations44
US10276913B2Apr 30, 2019
Directional coupler
TDK CORP0 citations40
US10062960B2Aug 28, 2018
Antenna element, antenna device, and wireless communication equipment using the same
TDK CORP0 citations40