Inventor
YOSHIOKA FUMIHIKO
US25 patents
Patents
25 patentsUS10821390B2Nov 3, 2020
Honeycomb filter
NGK INSULATORS LTD6 citations72
US11280237B2Mar 22, 2022
Honeycomb filter
NGK INSULATORS LTD3 citations70
US11280236B2Mar 22, 2022
Honeycomb filter
NGK INSULATORS LTD2 citations70
US10557390B2Feb 11, 2020
Honeycomb filter
NGK INSULATORS LTD2 citations69
US11293317B2Apr 5, 2022
Honeycomb filter
NGK INSULATORS LTD2 citations65
US12551834B2Feb 17, 2026
Honeycomb filter
NGK INSULATORS LTD0 citations58
US11759740B2Sep 19, 2023
Honeycomb filter
NGK INSULATORS LTD1 citations58
US11400441B2Aug 2, 2022
Honeycomb filter
NGK INSULATORS LTD0 citations51
US11260384B2Mar 1, 2022
Honeycomb filter
NGK INSULATORS LTD0 citations51
US11103862B2Aug 31, 2021
Honeycomb filter
NGK INSULATORS LTD0 citations51
US10974187B2Apr 13, 2021
Honeycomb filter
NGK INSULATORS LTD0 citations51
US12558641B2Feb 24, 2026
Honeycomb filter
NGK INSULATORS LTD0 citations50
US12415154B2Sep 16, 2025
Honeycomb filter
NGK INSULATORS LTD0 citations50
US12226727B2Feb 18, 2025
Honeycomb filter
NGK INSULATORS LTD0 citations50
US12076716B2Sep 3, 2024
Honeycomb filter
NGK INSULATORS LTD0 citations50
US11565209B2Jan 31, 2023
Honeycomb filter
NGK INSULATORS LTD0 citations50
US11759741B2Sep 19, 2023
Honeycomb filter
NGK INSULATORS LTD0 citations48
US11274588B2Mar 15, 2022
Honeycomb filter
NGK INSULATORS LTD0 citations48
US12397257B2Aug 26, 2025
Honeycomb filter
NGK INSULATORS LTD0 citations47
US12390756B2Aug 19, 2025
Honeycomb filter
NGK INSULATORS LTD0 citations47
US11571688B2Feb 7, 2023
Honeycomb filter
NGK INSULATORS LTD0 citations47
US10994236B2May 4, 2021
Honeycomb filter
NGK INSULATORS LTD0 citations47
US10525394B2Jan 7, 2020
Honeycomb filter
NGK INSULATORS LTD0 citations41
US10478766B2Nov 19, 2019
Honeycomb filter
NGK INSULATORS LTD0 citations41
US10669906B2Jun 2, 2020
Honeycomb filter
NGK INSULATORS LTD0 citations39