Assignee
SUMITOMO LIGHT METAL IND
JP·103 granted patents·12 pending applications·2,171 citations·filing 1973–2019
Top patents by PatentIndex Score
115 records- 0193US8714631B2Raised and recessed sheet material, and vehicle panel and laminated structure using the sameSUMITOMO LIGHT METAL IND·Filed 2013·Granted May 6, 2014·10 cites·13 claims
- 0292US5240522AMethod of producing hardened aluminum alloy sheets having superior thermal stabilitySUMITOMO LIGHT METAL IND·Filed 1992·Granted Aug 31, 1993·55 cites·12 claims
- 0391US7654435B2Rotary tool for friction stir spot welding and method of friction stir spot welding using the sameSUMITOMO LIGHT METAL IND·Filed 2007·Granted Feb 2, 2010·20 cites·18 claims
- 0491US4931340AHoneycomb panel structureSUMITOMO LIGHT METAL IND·Filed 1986·Granted Jun 5, 1990·134 cites·7 claims
- 0591US4605448AAluminum alloy forming sheet and method for producing the sameSUMITOMO LIGHT METAL IND·Filed 1981·Granted Aug 12, 1986·43 cites·11 claims
- 0690US6627330B1Aluminum alloy brazing sheet for vacuum brazing exhibiting excellent corrosion resistance, and heat exchanger using the brazing sheetSUMITOMO LIGHT METAL IND·Filed 2000·Granted Sep 30, 2003·50 cites·9 claims
- 0790US5125452AAluminum alloy clad materialSUMITOMO LIGHT METAL IND·Filed 1991·Granted Jun 30, 1992·89 cites·4 claims
- 0889US5266130AProcess for manufacturing aluminum alloy material having excellent shape fixability and bake hardenabilitySUMITOMO LIGHT METAL IND·Filed 1992·Granted Nov 30, 1993·62 cites·3 claims
- 0989US4785092AAluminum brazing material for use in aluminum heat exchangerSUMITOMO LIGHT METAL IND·Filed 1985·Granted Nov 15, 1988·62 cites·4 claims
- 1089US4645544AProcess for producing cold rolled aluminum alloy sheetSUMITOMO LIGHT METAL IND·Filed 1983·Granted Feb 24, 1987·38 cites·6 claims
- 1187US5480729AHoneycomb panel having inserts for fixing a member in an opening in the panelSUMITOMO LIGHT METAL IND·Filed 1994·Granted Jan 2, 1996·51 cites·11 claims
- 1287US4357397ABrazing fin stock for use in aluminum base alloy heat exchangerSUMITOMO LIGHT METAL IND·Filed 1980·Granted Nov 2, 1982·40 cites·6 claims
- 1387US3935349AProcess of coating an aluminum articleSUMITOMO LIGHT METAL IND·Filed 1973·Granted Jan 27, 1976·46 cites·4 claims
- 1486US7250223B2Aluminum heat exchanger excellent in corrosion resistanceSUMITOMO LIGHT METAL IND·Filed 2004·Granted Jul 31, 2007·32 cites·13 claims
- 1586US4684448AProcess of producing neodymium-iron alloySUMITOMO LIGHT METAL IND·Filed 1985·Granted Aug 4, 1987·42 cites·5 claims
- 1686US4401295AApparatus for treating molten metalSUMITOMO LIGHT METAL IND·Filed 1982·Granted Aug 30, 1983·26 cites·8 claims
- 1785US5001353AMethod and apparatus to measure the thickness of coating filmsSUMITOMO LIGHT METAL IND·Filed 1990·Granted Mar 19, 1991·72 cites·7 claims
- 1884US4335677ACoating of the inner surface of tubesSUMITOMO LIGHT METAL IND·Filed 1980·Granted Jun 22, 1982·61 cites·7 claims
- 1984US4284437AProcess for preparing hard tempered aluminum alloy sheetSUMITOMO LIGHT METAL IND·Filed 1979·Granted Aug 18, 1981·31 cites·14 claims
- 2083US4244756AFin stocks for use in heat exchanger made of aluminum alloy and production method thereofSUMITOMO LIGHT METAL IND·Filed 1979·Granted Jan 13, 1981·33 cites·3 claims
- 2182US7800011B2MIG welded joint between aluminum and steel members and MIG welding processSUMITOMO LIGHT METAL IND·Filed 2008·Granted Sep 21, 2010·12 cites·8 claims
- 2282US5292595AClad aluminum alloy material having high strength and high corrosion resistance for heat exchangerSUMITOMO LIGHT METAL IND·Filed 1993·Granted Mar 8, 1994·49 cites·6 claims
- 2382US5148862AHeat exchanger fin materials and heat exchangers prepared therefromSUMITOMO LIGHT METAL IND·Filed 1991·Granted Sep 22, 1992·44 cites·7 claims
- 2482US4427034ACoating composition for protecting inner surface of tubes in heat exchangersSUMITOMO LIGHT METAL IND·Filed 1981·Granted Jan 24, 1984·29 cites·7 claims
- 2581US7810700B2Heat treating friction stir welded aluminum alloy members and joined productSUMITOMO LIGHT METAL IND·Filed 2005·Granted Oct 12, 2010·5 cites·7 claims
- 2681US7713363B2Method of manufacturing high-strength aluminum alloy extruded product excelling in corrosion resistance and stress corrosion cracking resistanceSUMITOMO LIGHT METAL IND·Filed 2003·Granted May 11, 2010·13 cites·5 claims
- 2781US5353502AMethod of producing a honeycomb panel insert for fixing a member in an openingSUMITOMO LIGHT METAL IND·Filed 1992·Granted Oct 11, 1994·39 cites·17 claims
- 2881US4462843AMethod for producing fine-grained, high strength aluminum alloy materialSUMITOMO LIGHT METAL IND·Filed 1982·Granted Jul 31, 1984·27 cites·10 claims
- 2980US4581063AMethod and apparatus for melting metal ingotsSUMITOMO LIGHT METAL IND·Filed 1985·Granted Apr 8, 1986·22 cites·20 claims
- 3079US4056964AApparatus for metal extrusionSUMITOMO LIGHT METAL IND·Filed 1976·Granted Nov 8, 1977·27 cites·7 claims
- 3178US10307813B2Aluminum alloy heat exchanger and method of producing refrigerant tube used for the heat exchangerSUMITOMO LIGHT METAL IND·Filed 2016·Granted Jun 4, 2019·1 cites·5 claims
- 3278US4783245AProcess and apparatus for producing alloy containing terbium and/or gadoliniumSUMITOMO LIGHT METAL IND·Filed 1987·Granted Nov 8, 1988·26 cites·21 claims
- 3378US4428244AApparatus for measuring internal stress of strip during rolling processSUMITOMO LIGHT METAL IND·Filed 1981·Granted Jan 31, 1984·24 cites·7 claims
- 3478US3935007AAluminum alloy of age hardening typeSUMITOMO LIGHT METAL IND·Filed 1974·Granted Jan 27, 1976·23 cites·4 claims
- 3577US8028888B2Method of joining together end portions of superposed membersSUMITOMO LIGHT METAL IND·Filed 2006·Granted Oct 4, 2011·5 cites·10 claims
- 3675US5270095AMember for a honeycomb core or panel requiring simple and compound curvaturesSUMITOMO LIGHT METAL IND·Filed 1991·Granted Dec 14, 1993·51 cites·22 claims
- 3775US4673551AFin stock material for use in plate fin heat exchanger adapted for superhigh pressure serviceSUMITOMO LIGHT METAL IND·Filed 1985·Granted Jun 16, 1987·22 cites·4 claims
- 3875US4368219AMethod and apparatus for coating the inner surface of long tubes of small diameterSUMITOMO LIGHT METAL IND·Filed 1981·Granted Jan 11, 1983·38 cites·12 claims
- 3974US4317484AHeat exchanger coreSUMITOMO LIGHT METAL IND·Filed 1980·Granted Mar 2, 1982·35 cites·6 claims
- 4073US4747924AApparatus for producing neodymium-iron alloySUMITOMO LIGHT METAL IND·Filed 1987·Granted May 31, 1988·22 cites·8 claims
- 4173US4454748AApparatus for measuring the content of hydrogen dissolved in a molten metalSUMITOMO LIGHT METAL IND·Filed 1982·Granted Jun 19, 1984·30 cites·11 claims
- 4272US7018722B2Aluminum alloy fin material for heat exchangers and heat exchanger including the fin materialSUMITOMO LIGHT METAL IND·Filed 2003·Granted Mar 28, 2006·15 cites·11 claims
- 4372US4632885AAluminum base alloy clad material for use in heat exchangersSUMITOMO LIGHT METAL IND·Filed 1982·Granted Dec 30, 1986·27 cites·10 claims
- 4470US7490658B2Internally grooved heat transfer tube for high-pressure refrigerantSUMITOMO LIGHT METAL IND·Filed 2007·Granted Feb 17, 2009·6 cites·12 claims
- 4570US4762168ACondenser having apparatus for monitoring conditions of inner surface of condenser tubesSUMITOMO LIGHT METAL IND·Filed 1986·Granted Aug 9, 1988·29 cites·5 claims
- 4670US4370944AApparatus for coating the inner surface of long tubes of small diameterSUMITOMO LIGHT METAL IND·Filed 1981·Granted Feb 1, 1983·26 cites·12 claims
- 4770US2019185969A1Aluminum alloy sheet that exhibits excellent surface quality after anodizing and method for producing the sameSUMITOMO LIGHT METAL IND·Filed 2019·Application pending·0 cites
- 4869US7021343B2Fuel filler pipe for automobileSUMITOMO LIGHT METAL IND·Filed 2005·Granted Apr 4, 2006·6 cites·5 claims
- 4968US6361882B1High-strength aluminum alloy clad material for heat exchangers exhibiting excellent corrosion resistanceSUMITOMO LIGHT METAL IND·Filed 2000·Granted Mar 26, 2002·11 cites·11 claims
- 5068US5372663APowder processing of titanium aluminide having superior oxidation resistanceSUMITOMO LIGHT METAL IND·Filed 1992·Granted Dec 13, 1994·29 cites·2 claims
Showing the top 50 of 115 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when SUMITOMO LIGHT METAL IND files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →