Inventor
YAMAUCHI KIYOTAKA
JP19 patents
Patents
19 patentsUS4985089AJan 15, 1991
Fe-base soft magnetic alloy powder and magnetic core thereof and method of producing same
HITACHI METALS LTD86 citations96
US4811187AMar 7, 1989
DC-DC converter with saturable reactor reset circuit
HITACHI METALS LTD104 citations96
US5160379ANov 3, 1992
Fe-base soft magnetic alloy and method of producing same
HITACHI METALS LTD73 citations95
US4881989ANov 21, 1989
Fe-base soft magnetic alloy and method of producing same
HITACHI METALS LTD110 citations95
US5591276AJan 7, 1997
Magnetic alloy with ultrafine crystal grains and method of producing same
HITACHI METALS LTD25 citations92
US5069731ADec 3, 1991
Low-frequency transformer
HITACHI METALS LTD47 citations92
US4945339AJul 31, 1990
Anti-theft sensor marker
HITACHI METALS LTD33 citations92
US4918555AApr 17, 1990
Magnetic head containing an Fe-base soft magnetic alloy layer
HITACHI METALS LTD23 citations92
US4983859AJan 8, 1991
Magnetic device for high-voltage pulse generating apparatuses
HITACHI METALS LTD41 citations91
US5337033AAug 9, 1994
Permanent magnet assembly for stably fixing denture
HITACHI METALS LTD27 citations90
US5072205ADec 10, 1991
Wound magnetic core
HITACHI METALS LTD19 citations81
US4871925AOct 3, 1989
High-voltage pulse generating apparatus
HITACHI METALS LTD19 citations74
US4827214AMay 2, 1989
Method for measuring losses of a magnetic core
HITACHI METALS LTD7 citations74
US4769091ASep 6, 1988
Magnetic core
HITACHI METALS LTD14 citations74
US5443664AAug 22, 1995
Surge current-suppressing circuit and magnetic device therein
HITACHI METALS LTD13 citations73
US5151137ASep 29, 1992
Soft magnetic alloy with ultrafine crystal grains and method of producing same
HITACHI METALS LTD11 citations73
US5083366AJan 28, 1992
Method for making wound magnetic core
HITACHI METALS LTD10 citations73
US4757219AJul 12, 1988
Lamination type of magnetostrictor and manufacturing method thereof
HITACHI METALS LTD6 citations72
US5114503AMay 19, 1992
Magnetic core
HITACHI METALS LTD5 citations63