Inventor
WASA KIYOTAKA
JP37 patents
⚠️ This page may combine multiple inventors who share the name “WASA KIYOTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
28 patentsUS4037176AJul 19, 1977
Multi-layered substrate for a surface-acoustic-wave device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD53 citations96
US4016061AApr 5, 1977
Method of making resistive films
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD115 citations95
US4980339ADec 25, 1990
Superconductor structure
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations93
US4844785AJul 4, 1989
Method for deposition of hard carbon film
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD34 citations93
US5047390ASep 10, 1991
Josephson devices and process for manufacturing the same
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD30 citations92
US4553099ANov 12, 1985
Electrostatic voltage sensor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD30 citations92
US4535376AAug 13, 1985
Magnetic head incorporating an amorphous magnetic metallic film having a thickness equal to a track width
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD47 citations92
US4342012AJul 27, 1982
Surface acoustic wave device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations92
US4315960AFeb 16, 1982
Method of making a thin film
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD38 citations92
US4501987AFeb 26, 1985
Surface acoustic wave transducer using a split-finger electrode on a multi-layered substrate
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD20 citations82
US4276535AJun 30, 1981
Thermistor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD27 citations82
US4223286ASep 16, 1980
Surface acoustic wave resonator
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations82
US3988232AOct 26, 1976
Method of making crystal films
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations82
US4715680ADec 29, 1987
Optical switch
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD21 citations81
US4796982AJan 10, 1989
Optical valve
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations74
US4354130AOct 12, 1982
Surface acoustic wave device using a multi-layer substrate including α2 O3, SiO and ZnO
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 citations74
US4288307ASep 8, 1981
Method of making a magnetic head
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations74
US4510443AApr 9, 1985
Voltage measuring device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations73
US4770923ASep 13, 1988
Protection film structure for functional devices
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD13 citations72
US4458346AJul 3, 1984
Pickup stylus
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations71
US4052738AOct 4, 1977
Stylus for capacitive videodisc
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD16 citations69
US4428909AJan 31, 1984
Environmental condition sensor
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations68
US4236095ANov 25, 1980
Surface acoustic wave device comprising piezoelectric substrate having zinc oxide layer on α-alumina layer
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6 citations63
US5145830ASep 8, 1992
Method for manufacturing thin film oxide superconductors and superconductor devices by x-ray irradiation
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations62
US4610894ASep 9, 1986
Method of manufacturing surface acoustic wave device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations60
US5527767AJun 18, 1996
Method for annealing thin film superconductors
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4 citations57
US3964033AJun 15, 1976
Electrooptic storage device
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations57
US4363990ADec 14, 1982
Surface acoustic wave transducer
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD1 citations45
CANON KK
7 patentsUS7053526B2May 30, 2006
Piezoelectric structure, liquid ejecting head and manufacturing method therefor
CANON KK44 citations96
US6653211B2Nov 25, 2003
Semiconductor substrate, SOI substrate and manufacturing method therefor
CANON KK42 citations96
US7045935B2May 16, 2006
Actuator and liquid discharge head, and method for manufacturing liquid discharge head
CANON KK26 citations93
US7453188B2Nov 18, 2008
Dielectric element, piezoelectric element, ink jet head and ink jet recording apparatus and manufacturing method of same
CANON KK12 citations84
US7301261B2Nov 27, 2007
Dielectric element, piezoelectric element, ink jet head and ink jet recording apparatus and manufacturing method of same
CANON KK9 citations74
US6841490B2Jan 11, 2005
Semiconductor substrate, SOI substrate and manufacturing method therefor
CANON KK10 citations74
US7618131B2Nov 17, 2009
Structure of piezoelectric element and liquid discharge recording head, and method of manufacture therefor
CANON KK2 citations63