Inventor
MATSUMARU YOSHINORI
JP9 patents
Patents
9 patentsUS6215371B1Apr 10, 2001
Non-reciprocal circuit element with a capacitor between the shield conductor and ground to lower the operating frequency
TDK CORP15 citations82
US11664778B2May 30, 2023
Band-pass filter
TDK CORP2 citations71
US11476822B2Oct 18, 2022
Band-pass filter
TDK CORP3 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
US10964994B2Mar 30, 2021
Nonreciprocal circuit element and communication apparatus using the same
TDK CORP0 citations60
US11276909B2Mar 15, 2022
Nonreciprocal circuit element, manufacturing method of the same, and communication apparatus using the same
TDK CORP0 citations59
US10992014B2Apr 27, 2021
Nonreciprocal circuit element and communication apparatus using the same
TDK CORP0 citations59
US11955681B2Apr 9, 2024
Band-pass filter
TDK CORP0 citations47