Inventor
OTOMO SHIGEKAZU
JP35 patents
⚠️ This page may combine multiple inventors who share the name “OTOMO SHIGEKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
32 patentsUS4814921AMar 21, 1989
Multilayered magnetic films and thin-film magnetic heads using the same as a pole
HITACHI LTD61 citations94
US4772976ASep 20, 1988
Process for preparing magnetic layer and magnetic head prepared using the same
HITACHI LTD31 citations93
US5463518AOct 31, 1995
Magnetic head and magnetic recording and reproducing apparatus using a superconducting quantum interference device
HITACHI LTD24 citations92
US4935311AJun 19, 1990
Magnetic multilayered film and magnetic head using the same
HITACHI LTD36 citations92
US4748089AMay 31, 1988
Multilayered ferromagnetic amorphous alloy film and magnetic head employing the same
HITACHI LTD30 citations92
US4610935ASep 9, 1986
Magnetic film structure
HITACHI LTD41 citations92
US4559572ADec 17, 1985
Magnetic head and method of fabricating same
HITACHI LTD29 citations92
US4935314AJun 19, 1990
Ferromagnetic film and magnetic head using the same
HITACHI LTD22 citations82
US4858049AAug 15, 1989
Magnetic film and magnetic head using the same
HITACHI LTD19 citations82
US4306908ADec 22, 1981
Ferromagnetic amorphous alloy
HITACHI LTD20 citations82
US6033792AMar 7, 2000
Soft magnetic thin film, and magnetic head and magnetic recording device using the same
HITACHI LTD8 citations74
US5873955AFeb 23, 1999
Soft magnetic thin film, and magnetic head and magnetic recording device using the same
HITACHI LTD11 citations74
US4972285ANov 20, 1990
Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head made from the same
HITACHI LTD11 citations74
US4943879AJul 24, 1990
Thin film magnetic head including magnetic layers having high saturation magnetic flux density and metal film for avoiding deterioration during manufacturing
HITACHI LTD11 citations74
US4920013AApr 24, 1990
Magnetic Multilayer structure
HITACHI LTD18 citations74
US4894098AJan 16, 1990
Process for preparing magnetic layer and magnetic head prepared using the same
HITACHI LTD9 citations74
US4847715AJul 11, 1989
Magnetic head having short distance between gaps for recording reproducing and erasing
HITACHI LTD9 citations74
US4774616ASep 27, 1988
Magnetic head having an integrated recording and playback head and an erasure head
HITACHI LTD17 citations74
US4769729ASep 6, 1988
Magnetic head having ferromagnetic amorphous alloy multi-layered film
HITACHI LTD11 citations74
US4766039AAug 23, 1988
Magnetic head made from amorphous magnetic film
HITACHI LTD9 citations74
US4731683AMar 15, 1988
Magnetic recording and reproducing system with composite magnetic head
HITACHI LTD16 citations74
US4656547AApr 7, 1987
Composite type magnetic head for recording and reproducing high frequency signals
HITACHI LTD19 citations74
US4420348ADec 13, 1983
Amorphous alloy for magnetic head core
HITACHI LTD10 citations74
US4411716AOct 25, 1983
Amorphous alloys for magnetic head core and video magnetic head using same
HITACHI LTD16 citations74
US4803338AFeb 7, 1989
Magnetic head having improved track width narrowing grooves
HITACHI LTD14 citations73
US4745507AMay 17, 1988
Composite type magnetic head with non-magnetic member in coil mounting portion
HITACHI LTD7 citations73
US4891278AJan 2, 1990
Ferrromagnetic thin film and magnetic head using it
HITACHI LTD15 citations72
US4851942AJul 25, 1989
Floating magnetic head having a magnetic core buried in a channel on an air bearing rail
HITACHI LTD15 citations71
US5663006ASep 2, 1997
Corrosion-resistant magnetic film and magnetic head using the same
HITACHI LTD4 citations63
US5247415ASep 21, 1993
Magnetic head having main and auxiliary magnetic paths
HITACHI LTD6 citations63
US5159505AOct 27, 1992
Rotating drum having a center of gravity in registry with an axis of rotation
HITACHI LTD4 citations62
US4571652AFeb 18, 1986
Magnetic recording and reproducing apparatus
HITACHI LTD6 citations62