Assignee
CHUGAI ELECTRIC IND CO LTD
JP·27 granted patents·259 citations·filing 1974–1993
Top patents by PatentIndex Score
27 records- 0189US3933485AElectrical contact materialCHUGAI ELECTRIC IND CO LTD·Filed 1974·Granted Jan 20, 1976·30 cites·4 claims
- 0285US4680162AMethod for preparing Ag-SnO system alloy electrical contact materialCHUGAI ELECTRIC IND CO LTD·Filed 1986·Granted Jul 14, 1987·29 cites·2 claims
- 0381US4243413AIntegrated Ag-SnO alloy electrical contact materialsCHUGAI ELECTRIC IND CO LTD·Filed 1979·Granted Jan 6, 1981·22 cites·5 claims
- 0481US3933486ASilver-metal oxide composite and method of manufacturing the sameCHUGAI ELECTRIC IND CO LTD·Filed 1974·Granted Jan 20, 1976·20 cites·3 claims
- 0575US4161403AComposite electrical contact material of Ag-alloy matrix and internally oxidized dispersed phaseCHUGAI ELECTRIC IND CO LTD·Filed 1978·Granted Jul 17, 1979·18 cites·4 claims
- 0674US4150982AAG-Metal oxides electrical contact materials containing internally oxidized indium oxides and/or tin oxidesCHUGAI ELECTRIC IND CO LTD·Filed 1978·Granted Apr 24, 1979·15 cites·4 claims
- 0760US4695330AMethod of manufacturing internal oxidized Ag-SnO system alloy contact materialsCHUGAI ELECTRIC IND CO LTD·Filed 1986·Granted Sep 22, 1987·12 cites·5 claims
- 0857US4672008AInternal oxidized Ag-Sn-In system alloy electrical contact compositeCHUGAI ELECTRIC IND CO LTD·Filed 1985·Granted Jun 9, 1987·10 cites·6 claims
- 0957US4452651AElectrical contact materials and their production methodCHUGAI ELECTRIC IND CO LTD·Filed 1982·Granted Jun 5, 1984·9 cites·3 claims
- 1057US4242135AElectrical contact materials of internally oxidized Ag-Sn-Bi alloyCHUGAI ELECTRIC IND CO LTD·Filed 1979·Granted Dec 30, 1980·9 cites·2 claims
- 1157US4232812AApparatus for making a tri-metallic composite electrical contactCHUGAI ELECTRIC IND CO LTD·Filed 1978·Granted Nov 11, 1980·11 cites·9 claims
- 1253US4457787AInternal oxidation method of Ag alloysCHUGAI ELECTRIC IND CO LTD·Filed 1982·Granted Jul 3, 1984·9 cites·9 claims
- 1350US4636270AInternal oxidized Ag-Sn system alloy contact materialsCHUGAI ELECTRIC IND CO LTD·Filed 1985·Granted Jan 13, 1987·9 cites·3 claims
- 1448US4479892AAg-Metal oxides electrical contact materialsCHUGAI ELECTRIC IND CO LTD·Filed 1983·Granted Oct 30, 1984·6 cites·2 claims
- 1546US4514238AInternally oxidized Ag-Sn-Bi alloy electrical contact materialsCHUGAI ELECTRIC IND CO LTD·Filed 1984·Granted Apr 30, 1985·5 cites·1 claims
- 1646US4475991AMethod of diffusion cladding a Fe-containing base material for decorative articles and ornaments with precious metal constituents including AgCHUGAI ELECTRIC IND CO LTD·Filed 1983·Granted Oct 9, 1984·6 cites·1 claims
- 1743US4414742AMethod of making composite electrical contactCHUGAI ELECTRIC IND CO LTD·Filed 1980·Granted Nov 15, 1983·7 cites·4 claims
- 1840US4803322AElectrical contacts for electric breakersCHUGAI ELECTRIC IND CO LTD·Filed 1985·Granted Feb 7, 1989·4 cites·5 claims
- 1939US4647322AInternal oxidized Ag-SnO system alloy electrical contact materialsCHUGAI ELECTRIC IND CO LTD·Filed 1985·Granted Mar 3, 1987·5 cites·3 claims
- 2038US4412971AElectrical contact materials of internally oxidized Ag-Sn-Bi alloyCHUGAI ELECTRIC IND CO LTD·Filed 1982·Granted Nov 1, 1983·3 cites·2 claims
- 2137US5268237AComposite electrical contactCHUGAI ELECTRIC IND CO LTD·Filed 1992·Granted Dec 7, 1993·5 cites·1 claims
- 2237US4335507AMethod for making a tri-metallic composite electrical contactCHUGAI ELECTRIC IND CO LTD·Filed 1980·Granted Jun 22, 1982·4 cites·2 claims
- 2336US4432487AMethod of overlaying stainless steel material for decorative articles and ornaments with a precious metal alloyCHUGAI ELECTRIC IND CO LTD·Filed 1982·Granted Feb 21, 1984·3 cites·3 claims
- 2435US5102480AAg-sno-cdo electrical contact materials and manufacturing method thereofCHUGAI ELECTRIC IND CO LTD·Filed 1991·Granted Apr 7, 1992·5 cites·2 claims
- 2531US4556435AMethod for preparing cores and the like made from metallic oxidesCHUGAI ELECTRIC IND CO LTD·Filed 1984·Granted Dec 3, 1985·1 cites·4 claims
- 2628US5366135AMethod of making composite electrical contactCHUGAI ELECTRIC IND CO LTD·Filed 1993·Granted Nov 22, 1994·0 cites·2 claims
- 2727US4981533AInternal-oxidation method of electrical contact materials and the materials produced therebyCHUGAI ELECTRIC IND CO LTD·Filed 1990·Granted Jan 1, 1991·2 cites·2 claims
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