Assignee
DAIDO STEEL CO LTD
342 granted patents·93 pending applications·4,382 citations·filing 1974–2025
Top patents by PatentIndex Score
435 records- 0196US11862787B2Negative electrode active material for lithium-ion battery, negative electrode for lithium-ion battery and lithium-ion batteryDAIDO STEEL CO LTD·Filed 2020·Granted Jan 2, 2024·4 cites·12 claims
- 0296US11319621B2Steel for mold, and moldDAIDO STEEL CO LTD·Filed 2019·Granted May 3, 2022·4 cites·25 claims
- 0396US6337459B1Multi-layered anti-coking heat resisting metal tube and the method for manufacturing thereofDAIDO STEEL CO LTD·Filed 2000·Granted Jan 8, 2002·67 cites·21 claims
- 0495US6334351B1Metal pipe expanderDAIDO STEEL CO LTD·Filed 2000·Granted Jan 1, 2002·178 cites·10 claims
- 0594US4434006AFree cutting steel containing controlled inclusions and the method of making the sameDAIDO STEEL CO LTD·Filed 1980·Granted Feb 28, 1984·58 cites·13 claims
- 0693US11377718B2Steel for moldDAIDO STEEL CO LTD·Filed 2019·Granted Jul 5, 2022·3 cites·32 claims
- 0791US7914732B2Ferritic stainless steel cast iron, cast part using the ferritic stainless steel cast iron, and process for producing the cast partDAIDO STEEL CO LTD·Filed 2007·Granted Mar 29, 2011·9 cites·55 claims
- 0891US5244517AManufacturing titanium alloy component by beta formingDAIDO STEEL CO LTD·Filed 1991·Granted Sep 14, 1993·61 cites·16 claims
- 0991US4963508AMethod of making an epitaxial gallium arsenide semiconductor wafer using a strained layer superlatticeDAIDO STEEL CO LTD·Filed 1990·Granted Oct 16, 1990·158 cites·3 claims
- 1091US4902359AWear-resistant titanium or titanium-alloy member and a method for manufacturing the sameDAIDO STEEL CO LTD·Filed 1988·Granted Feb 20, 1990·74 cites·15 claims
- 1191US4514218AReduced iron melting method using electric arc furnaceDAIDO STEEL CO LTD·Filed 1984·Granted Apr 30, 1985·30 cites·1 claims
- 1290US6284071B1Titanium alloy having good heat resistance and method of producing parts therefromDAIDO STEEL CO LTD·Filed 1999·Granted Sep 4, 2001·59 cites·8 claims
- 1390US4275287APlasma torch and a method of producing a plasmaDAIDO STEEL CO LTD·Filed 1979·Granted Jun 23, 1981·43 cites·3 claims
- 1489US6048601ASoft magnetic alloy powder for electromagnetic and magnetic shield, and shielding members containing the sameDAIDO STEEL CO LTD·Filed 1998·Granted Apr 11, 2000·65 cites·16 claims
- 1589US3973950ALow carbon calcium-sulfur containing free-cutting steelDAIDO STEEL CO LTD·Filed 1975·Granted Aug 10, 1976·37 cites·16 claims
- 1688US10988823B2Annealed steel material and method for manufacturing the sameDAIDO STEEL CO LTD·Filed 2018·Granted Apr 27, 2021·2 cites·14 claims
- 1788US5855699AMethod for manufacturing welded clad steel tubeDAIDO STEEL CO LTD·Filed 1997·Granted Jan 5, 1999·45 cites·8 claims
- 1888US4279646AFree cutting steel containing sulfide inclusion particles with controlled aspect, size and distributionDAIDO STEEL CO LTD·Filed 1979·Granted Jul 21, 1981·30 cites·9 claims
- 1987US6405761B1Expandable metal-pipe bonded body and manufacturing method thereofDAIDO STEEL CO LTD·Filed 1999·Granted Jun 18, 2002·126 cites·3 claims
- 2087US4928154AEpitaxial gallium arsenide semiconductor on silicon substrate with gallium phosphide and superlattice intermediate layersDAIDO STEEL CO LTD·Filed 1989·Granted May 22, 1990·74 cites·7 claims
- 2187US4362556AArc furnace steelmaking involving oxygen blowingDAIDO STEEL CO LTD·Filed 1980·Granted Dec 7, 1982·21 cites·7 claims
- 2287US3940552AWater-cooled panel for arc furnaceDAIDO STEEL CO LTD·Filed 1975·Granted Feb 24, 1976·22 cites·2 claims
- 2386US5832765AMethod and an apparatus for manufacturing wireDAIDO STEEL CO LTD·Filed 1996·Granted Nov 10, 1998·30 cites·43 claims
- 2485US10173258B2Steel for mold, and moldDAIDO STEEL CO LTD·Filed 2015·Granted Jan 8, 2019·2 cites·9 claims
- 2585US4810465AFree-cutting Ti alloyDAIDO STEEL CO LTD·Filed 1987·Granted Mar 7, 1989·34 cites·3 claims
- 2684US6699593B2Corrosion-resistant metallic member, metallic separator for fuel cell comprising the same, and process for production thereofDAIDO STEEL CO LTD·Filed 2002·Granted Mar 2, 2004·29 cites·14 claims
- 2784US4842818AMethod for manufacturing tapered rodsDAIDO STEEL CO LTD·Filed 1984·Granted Jun 27, 1989·21 cites·3 claims
- 2884US4326842ADevice for the pulverization of radioactive wastesDAIDO STEEL CO LTD·Filed 1980·Granted Apr 27, 1982·47 cites·8 claims
- 2983US6685881B2Stainless cast steel having good heat resistance and good machinabilityDAIDO STEEL CO LTD·Filed 2001·Granted Feb 3, 2004·17 cites·4 claims
- 3083US6546038B1Semiconductor surface-emitting elementDAIDO STEEL CO LTD·Filed 2000·Granted Apr 8, 2003·20 cites·8 claims
- 3183US6139660AHigh corrosion resisting alloy for diesel engine valve and method for producing the valveDAIDO STEEL CO LTD·Filed 2000·Granted Oct 31, 2000·16 cites·4 claims
- 3283US5423494APet rope winderDAIDO STEEL CO LTD·Filed 1994·Granted Jun 13, 1995·29 cites·5 claims
- 3382US7722801B2Vacuum carburizing apparatusDAIDO STEEL CO LTD·Filed 2007·Granted May 25, 2010·8 cites·2 claims
- 3482US7325434B2Method for manufacturing ring-shaped magnet material and manufacturing apparatus used thereforDAIDO STEEL CO LTD·Filed 2005·Granted Feb 5, 2008·9 cites·10 claims
- 3582US6673165B2High-hardness martensitic stainless steel excellent in corrosion resistanceDAIDO STEEL CO LTD·Filed 2002·Granted Jan 6, 2004·14 cites·7 claims
- 3682US6417488B1Internal metal pipe welding apparatus and monitoring systemDAIDO STEEL CO LTD·Filed 2000·Granted Jul 9, 2002·27 cites·23 claims
- 3781US12444735B2Si alloy powder for negative electrodeDAIDO STEEL CO LTD·Filed 2023·Granted Oct 14, 2025·1 cites·7 claims
- 3881US6432159B1Magnetic mixtureDAIDO STEEL CO LTD·Filed 2000·Granted Aug 13, 2002·22 cites·16 claims
- 3981US5132750ALight-emitting diode having light reflecting layerDAIDO STEEL CO LTD·Filed 1990·Granted Jul 21, 1992·67 cites·19 claims
- 4081US5027880ATundish changing apparatus in a continuous casting installationDAIDO STEEL CO LTD·Filed 1990·Granted Jul 2, 1991·22 cites·2 claims
- 4181US4907438ASizing mill and method of rolling a round bar materialDAIDO STEEL CO LTD·Filed 1988·Granted Mar 13, 1990·22 cites·7 claims
- 4281US4614159APowdered coal burnerDAIDO STEEL CO LTD·Filed 1985·Granted Sep 30, 1986·37 cites·3 claims
- 4380US4790516AReactor for iron makingDAIDO STEEL CO LTD·Filed 1986·Granted Dec 13, 1988·25 cites·3 claims
- 4479US12104231B2Steel material and steel product using the sameDAIDO STEEL CO LTD·Filed 2022·Granted Oct 1, 2024·0 cites·10 claims
- 4579US5524176AFuzzy expert system learning networkDAIDO STEEL CO LTD·Filed 1994·Granted Jun 4, 1996·75 cites·3 claims
- 4678US10428414B2Carburized componentDAIDO STEEL CO LTD·Filed 2014·Granted Oct 1, 2019·2 cites·6 claims
- 4778US10385426B2Ni-based superalloyDAIDO STEEL CO LTD·Filed 2018·Granted Aug 20, 2019·1 cites·6 claims
- 4878US4480777AApparatus for conveying strip materialDAIDO STEEL CO LTD·Filed 1982·Granted Nov 6, 1984·24 cites·4 claims
- 4977US10900098B2Thermal treatment furnaceDAIDO STEEL CO LTD·Filed 2018·Granted Jan 26, 2021·1 cites·18 claims
- 5077US6918972B2Ni-base alloy, heat-resistant spring made of the alloy, and process for producing the springDAIDO STEEL CO LTD·Filed 2003·Granted Jul 19, 2005·10 cites·15 claims
Showing the top 50 of 435 patent records by PatentIndex Score.
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