Inventor
TAKAGI KAZUMASA
39 patents
⚠️ This page may combine multiple inventors who share the name “TAKAGI KAZUMASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
30 patentsUS6958608B2Oct 25, 2005
Nuclear magnetic resonance equipment
HITACHI LTD69 citations97
US5147732ASep 15, 1992
Longitudinal magnetic recording media and magnetic memory units
HITACHI LTD96 citations96
US5143794ASep 1, 1992
Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus
HITACHI LTD49 citations96
US5096882AMar 17, 1992
Process for controlling oxygen content of superconductive oxide, superconductive device and process for production thereof
HITACHI LTD75 citations96
US4833020AMay 23, 1989
Magnetic recording medium
HITACHI LTD77 citations96
US4691983ASep 8, 1987
Optical waveguide and method for making the same
HITACHI LTD96 citations96
US5236791AAug 17, 1993
Magnetic recording medium and magnetic storage
HITACHI LTD58 citations95
US6608518B2Aug 19, 2003
Superconducting single flux quantum circuit
HITACHI LTD30 citations92
US6486756B2Nov 26, 2002
Superconductor signal amplifier
HITACHI LTD40 citations92
US6335103B1Jan 1, 2002
Magnetic recording media for longitudinal recording
HITACHI LTD21 citations92
US6310488B1Oct 30, 2001
Superconductive single flux quantum logic circuit
HITACHI LTD29 citations92
US5665478ASep 9, 1997
Magnetic recording media for longitudinal recording
HITACHI LTD32 citations92
US5380704AJan 10, 1995
Superconducting field effect transistor with increased channel length
HITACHI LTD20 citations92
US5077266ADec 31, 1991
Method of forming weak-link josephson junction, and superconducting device employing the junction
HITACHI LTD25 citations92
US4950642AAug 21, 1990
Method for fabricating superconducting oxide thin films by activated reactive evaporation
HITACHI LTD24 citations92
US4883711ANov 28, 1989
Magnetic recording medium
HITACHI LTD30 citations92
US4803392AFeb 7, 1989
Piezoelectric transducer
HITACHI LTD32 citations92
US4631402ADec 23, 1986
Optical electric-field measuring apparatus
HITACHI LTD34 citations92
US4365155ADec 21, 1982
Scintillator with ZnWO4 single crystal
HITACHI LTD33 citations92
US6627253B2Sep 30, 2003
Magnetic recording media for longitudinal recording, process for producing the same and magnetic memory apparatus
HITACHI LTD16 citations84
US5316585AMay 31, 1994
Method for fabricating superconducting materials and superconductive thin films
HITACHI LTD18 citations82
US4842917AJun 27, 1989
Magnetic recording medium and process for producing the same
HITACHI LTD20 citations82
US3951729AApr 20, 1976
Method for producing single crystals
HITACHI LTD23 citations81
US5231294AJul 27, 1993
Manganese-aluminum and manganese-silicon magnetic films, and magnetic recording medium
HITACHI LTD8 citations74
US4921834AMay 1, 1990
Flux method of growing oxide superconductors
HITACHI LTD11 citations74
US5250506AOct 5, 1993
Superconductive switching element with semiconductor channel
HITACHI LTD14 citations73
US5914068AJun 22, 1999
Bi-layer oxide ferroelectrics
HITACHI LTD15 citations72
US5550389AAug 27, 1996
Superconducting device
HITACHI LTD6 citations62
US4939045AJul 3, 1990
Magnetic recording medium
HITACHI LTD5 citations62
US4876144AOct 24, 1989
Single crystal thin film
HITACHI LTD2 citations62
NISSAN MOTOR
4 patentsUS4744231AMay 17, 1988
Closure lock system
NISSAN MOTOR16 citations74
US4346364AAug 24, 1982
Voice warning system for an automotive vehicle with ready-to-drive sensor
NISSAN MOTOR16 citations74
US4531116AJul 23, 1985
Warning system for indicating absence of emergency spare tire from a spare tire container
NISSAN MOTOR14 citations73
US4330782AMay 18, 1982
Fully-automatic antenna driving device
NISSAN MOTOR10 citations73