Inventor
KOYUHARA NORIKAZU
JP9 patents
⚠️ This page may combine multiple inventors who share the name “KOYUHARA NORIKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI METALS LTD
8 patentsUS5815062ASep 29, 1998
Magnetic core
HITACHI METALS LTD19 citations92
US7061355B2Jun 13, 2006
Ferrite core, CATV equipment and bi-directional CATV system
HITACHI METALS LTD11 citations82
US11242288B2Feb 8, 2022
Sintered Ni ferrite body, coil device, and method for producing sintered Ni ferrite body
HITACHI METALS LTD0 citations62
US11398328B2Jul 26, 2022
Sintered MnZn ferrite body
HITACHI METALS LTD0 citations61
US10919809B2Feb 16, 2021
MnZn ferrite and its production method
HITACHI METALS LTD1 citations61
US10950375B2Mar 16, 2021
MnZn ferrite core and its production method
HITACHI METALS LTD0 citations50
US10937579B2Mar 2, 2021
MnZn-ferrite and its production method
HITACHI METALS LTD0 citations50
US10304602B2May 28, 2019
MnZn-based ferrite and method for manufacturing the same
HITACHI METALS LTD0 citations40