Inventor
FUJIWARA HIDEO
JP73 patents
⚠️ This page may combine multiple inventors who share the name “FUJIWARA HIDEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
20 patentsUS5648885AJul 15, 1997
Giant magnetoresistive effect sensor, particularly having a multilayered magnetic thin film layer
HITACHI LTD111 citations97
US4013911AMar 22, 1977
Displacement - electricity transducer
HITACHI LTD69 citations95
US4005396AJan 25, 1977
Digital displacement sensor with zigzag coils
HITACHI LTD68 citations93
US4840844AJun 20, 1989
Magnetic recording medium
HITACHI LTD38 citations92
US4651248AMar 17, 1987
Thin-film magnetic head
HITACHI LTD34 citations92
US4610935ASep 9, 1986
Magnetic film structure
HITACHI LTD41 citations92
US4571650AFeb 18, 1986
Magneto-optic information storage system utilizing a self-coupled laser
HITACHI LTD28 citations92
US4559572ADec 17, 1985
Magnetic head and method of fabricating same
HITACHI LTD29 citations92
US4636897AJan 13, 1987
Perpendicular magnetic recording and reproducing thin film head
HITACHI LTD55 citations89
US4621030ANov 4, 1986
Perpendicular magnetic recording medium and manufacturing method thereof
HITACHI LTD24 citations82
US4316228AFeb 16, 1982
Magnetic head
HITACHI LTD22 citations81
US4031496AJun 21, 1977
Variable inductor
HITACHI LTD30 citations81
US4972285ANov 20, 1990
Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head made from the same
HITACHI LTD11 citations74
US4774616ASep 27, 1988
Magnetic head having an integrated recording and playback head and an erasure head
HITACHI LTD17 citations74
US4656547AApr 7, 1987
Composite type magnetic head for recording and reproducing high frequency signals
HITACHI LTD19 citations74
US4544591AOct 1, 1985
Perpendicular magnetic recording medium
HITACHI LTD7 citations74
US4411716AOct 25, 1983
Amorphous alloys for magnetic head core and video magnetic head using same
HITACHI LTD16 citations74
US4745507AMay 17, 1988
Composite type magnetic head with non-magnetic member in coil mounting portion
HITACHI LTD7 citations73
US4450494AMay 22, 1984
Magnetic head
HITACHI LTD11 citations73
US4439794AMar 27, 1984
Magnetic head
HITACHI LTD16 citations73
HITACHI MAXELL
17 patentsUS5783320AJul 21, 1998
Magneto-optical recording medium and process for producing the same
HITACHI MAXELL18 citations92
US5543221AAug 6, 1996
Magnetic recording medium
HITACHI MAXELL45 citations92
US5480694AJan 2, 1996
Magnetic recording medium
HITACHI MAXELL26 citations92
US5068152ANov 26, 1991
Magnetic recording medium
HITACHI MAXELL25 citations92
US5639547AJun 17, 1997
Magnetic heads and magnetic recording reproducing devices using magnetic laminations
HITACHI MAXELL8 citations74
US5965286AOct 12, 1999
Magneto-optical recording medium
HITACHI MAXELL5 citations73
US5637411AJun 10, 1997
Magneto-optical recording medium and process for producing the same
HITACHI MAXELL11 citations73
US5139884AAug 18, 1992
Magnetic recording medium comprising an aluminum substrate in which pores formed by anodic oxidation contain crystallographicaly discontinuous particles of fe-alloy
HITACHI MAXELL16 citations73
US5059337AOct 22, 1991
Soft magnetic materials comprising 9 to 15 atomic percent carbon atoms
HITACHI MAXELL8 citations73
US4895758AJan 23, 1990
Magnetic recording medium
HITACHI MAXELL16 citations73
US4828919AMay 9, 1989
Magnetic recording medium and process for preparing the same
HITACHI MAXELL12 citations73
US4803578AFeb 7, 1989
Assembly for stably mounting magnetic head on carriage
HITACHI MAXELL12 citations73
US4948667AAug 14, 1990
Magnetic head
HITACHI MAXELL9 citations72
US4941064AJul 10, 1990
Magnetic head having a pair of cores in which the opposing surfaces thereof are coated with a non-magnetic layer and a low melting point glass layer
HITACHI MAXELL9 citations72
US5021276AJun 4, 1991
Optical data recording medium and manufacturing method thereof
HITACHI MAXELL13 citations71
US4996089AFeb 26, 1991
Optical data recording medium
HITACHI MAXELL12 citations71
US4814920AMar 21, 1989
Magnetic head with a slider
HITACHI MAXELL8 citations71
SUZUKI MOTOR CO
3 patentsRICOH KK
3 patentsUS7795919B2Sep 14, 2010
Transmitter driver circuit in high-speed serial communications system
RICOH KK11 citations84
US5737273AApr 7, 1998
Sense amplifier and reading circuit with sense amplifier
RICOH KK11 citations72
US5729499AMar 17, 1998
Sense amplifier and reading circuit with sense amplifier
RICOH KK9 citations72
UNIV ALABAMA
2 patentsSEMICONDUCTOR TECH ACAD RES CT
2 patentsUS6735730B1May 11, 2004
Integrated circuit with design for testability and method for designing the same
SEMICONDUCTOR TECH ACAD RES CT16 citations81
US6334200B1Dec 25, 2001
Testable integrated circuit, integrated circuit design-for-testability method, and computer-readable medium storing a program for implementing the design-for-testability method
SEMICONDUCTOR TECH ACAD RES CT14 citations71
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
1 patentSHIIKI KAZUO
1 patentSUMIZAWA AKIO
1 patentShowing the top 50 of 73 patents by PatentIndex Score.