Inventor · disambiguated record

Hirofumi Yoshimura

Also filed as: YOSHIMURA HIROFUMI

38 granted patents·597 citations·filing 1974–2005

98Inventor score

Technology areasH05B C21D C22C C22F G03B

Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 NIPPON STEEL CORP10 COSINA KK2 YASHICA CO LTD2 ARAKAWA CHEM IND1

Top patents by PatentIndex Score

38 records

0192US4121078AMicrowave heating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1976·Granted Oct 17, 1978·60 cites·21 claims
0289US4471194AElectromagnetic energy seal for high frequency heating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1974·Granted Sep 11, 1984·46 cites·14 claims
0384US4465525AFerritic stainless steel having excellent formabilityNIPPON STEEL CORP·Filed 1982·Granted Aug 14, 1984·32 cites·5 claims
0483US7282683B2High frequency heating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Oct 16, 2007·10 cites·6 claims
0581US4515644AMethod for producing ferritic stainless steel sheets or strips containing aluminumNIPPON STEEL CORP·Filed 1981·Granted May 7, 1985·20 cites·13 claims
0681US3960612AMethod for producing a low temperature high strength tough steelNIPPON STEEL CORP·Filed 1974·Granted Jun 1, 1976·23 cites·6 claims
0779US7022958B2High frequency heating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Apr 4, 2006·7 cites·12 claims
0879US4420347AProcess for producing an austenitic stainless steel sheet or stripNIPPON STEEL CORP·Filed 1982·Granted Dec 13, 1983·18 cites·4 claims
0978US4017711AWelding material for low temperature steelsNIPPON STEEL CORP·Filed 1975·Granted Apr 12, 1977·25 cites·4 claims
1074US6114677AMicrowave heating apparatus having a metal plate rotatably disposed in a wave guideMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Sep 5, 2000·40 cites·20 claims
1170US4191877AMicrowave oven equipped with electric heating arrangementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1978·Granted Mar 4, 1980·21 cites·11 claims
1269US4568811AHigh frequency heating unit with rotating waveguideMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1984·Granted Feb 4, 1986·22 cites·14 claims
1367US4314126AMicrowave heating apparatus with cooling conduitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1979·Granted Feb 2, 1982·20 cites·2 claims
1467US3950083AFading audio-level controls for sound-recording motion picture camerasYASHICA CO LTD·Filed 1974·Granted Apr 13, 1976·8 cites·12 claims
1566US5371343AHeating cooking device having a wave guide and feeder port disposed perpendicular to a rotary tableMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Dec 6, 1994·25 cites·18 claims
1664US5108517AProcess for preparing titanium and titanium alloy materials having a fine equiaxed microstructureNIPPON STEEL CORP·Filed 1990·Granted Apr 28, 1992·15 cites·16 claims
1764US4694151AAutofocusing zoom lens system with beam splitter prism for single lens reflex camerasCOSINA KK·Filed 1985·Granted Sep 15, 1987·24 cites·5 claims
1864US4436973AHigh frequency heating appliance with an antenna and stirrer assemblyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted Mar 13, 1984·19 cites·7 claims
1964US4005370APower supply means for magnetronMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1975·Granted Jan 25, 1977·13 cites·9 claims
2061US5402204ACameraCOSINA KK·Filed 1993·Granted Mar 28, 1995·10 cites·8 claims
2161US3972604ASound-recording motion-picture cameraYASHICA CO LTD·Filed 1974·Granted Aug 3, 1976·7 cites·7 claims
2260US6894260B2High frequency heating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 17, 2005·7 cites·4 claims
2360US5125986AProcess for preparing titanium and titanium alloy having fine acicular microstructureNIPPON STEEL CORP·Filed 1990·Granted Jun 30, 1992·14 cites·6 claims
2459US5092940AProcess for production of titanium and titanium alloy material having fine equiaxial microstructureNIPPON STEEL CORP·Filed 1990·Granted Mar 3, 1992·12 cites·7 claims
2559US4304974AEnergy supply structure for combined resistance heater for H. F. heater ovenMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Dec 8, 1981·16 cites·4 claims
2658US4476362AHigh frequency heating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1983·Granted Oct 9, 1984·15 cites·14 claims
2753US4347420AMicrowave seal structure in microwave ovenMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Aug 31, 1982·12 cites·10 claims
2850US5367009AAqueous rosin emulsion and dispersant composition useful thereinARAKAWA CHEM IND·Filed 1991·Granted Nov 22, 1994·9 cites·17 claims
2949US4508946AMicrowave oven with rotary antennaMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1983·Granted Apr 2, 1985·12 cites·3 claims
3048US6974936B2High frequency heating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Dec 13, 2005·3 cites·5 claims
3146US4449025ADoor seal construction for high frequency heating applianceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted May 15, 1984·9 cites·2 claims
3244US4324967AMicrowave heating apparatus having magnetic coupling for driving the antennaMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Apr 13, 1982·8 cites·2 claims
3342US6657172B2High frequency heating apparatus equipped with oven hoodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Dec 2, 2003·1 cites·7 claims
3436US4326112AMicrowave oven having a tubular L-shaped antennaMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1979·Granted Apr 20, 1982·4 cites·5 claims
3535US4371769AMicrowave heating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1979·Granted Feb 1, 1983·3 cites·5 claims
3632US4373971AProcess for the production of ferritic stainless steel sheets or strips and products produced by said processNIPPON STEEL CORP·Filed 1981·Granted Feb 15, 1983·2 cites·9 claims
3731US4327267AHigh frequency energy supply in a high frequency heating applianceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Apr 27, 1982·2 cites·3 claims
3829US5514332ATitanium for conductor conduit in superconducting coilNIPPON STEEL CORP·Filed 1993·Granted May 7, 1996·3 cites·2 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →