Assignee
CHUGAI RO KOGYO KAISHA LTD
JP·69 granted patents·4 pending applications·1,104 citations·filing 1975–2022
Top patents by PatentIndex Score
73 records- 0193US4752268AExhaust oven for cathode ray tubesCHUGAI RO KOGYO KAISHA LTD·Filed 1986·Granted Jun 21, 1988·56 cites·2 claims
- 0293US4627814AContinuous type atmosphere heat treating furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 1985·Granted Dec 9, 1986·72 cites·8 claims
- 0392US4397451AFurnace for the heat treatment of scale-covered steelCHUGAI RO KOGYO KAISHA LTD·Filed 1982·Granted Aug 9, 1983·31 cites·2 claims
- 0488US4518353AVacuum sintering furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 1984·Granted May 21, 1985·28 cites·4 claims
- 0586US4836864AMethod of gas carburizing and hardeningCHUGAI RO KOGYO KAISHA LTD·Filed 1986·Granted Jun 6, 1989·22 cites·3 claims
- 0686US4631793AFiber reinforced metal alloy and method for the manufacture thereofCHUGAI RO KOGYO KAISHA LTD·Filed 1986·Granted Dec 30, 1986·24 cites·1 claims
- 0785US4932864ARoller hearth type heat treating furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 1989·Granted Jun 12, 1990·61 cites·8 claims
- 0883US4767320AAutomatically flow controlled continuous heat treating furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 1987·Granted Aug 30, 1988·45 cites·2 claims
- 0983US4229878AMethod of operating a reheating furnace in a hot rolling line and a reheating furnace employed thereforCHUGAI RO KOGYO KAISHA LTD·Filed 1978·Granted Oct 28, 1980·23 cites·5 claims
- 1082US10663229B2Cooling apparatus of heating furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 2017·Granted May 26, 2020·4 cites·7 claims
- 1182US4612045AMethod for making aluminum nitride powderCHUGAI RO KOGYO KAISHA LTD·Filed 1985·Granted Sep 16, 1986·48 cites·3 claims
- 1282US4549079AApparatus for measuring thickness of paint coatingCHUGAI RO KOGYO KAISHA LTD·Filed 1982·Granted Oct 22, 1985·36 cites·12 claims
- 1380US4743196AContinuous annealing furnace for a stripCHUGAI RO KOGYO KAISHA LTD·Filed 1986·Granted May 10, 1988·20 cites·2 claims
- 1480US4561800AMethod of heating a road surface and apparatus thereforCHUGAI RO KOGYO KAISHA LTD·Filed 1983·Granted Dec 31, 1985·43 cites·5 claims
- 1579US4449923AContinuous heat-treating furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 1982·Granted May 22, 1984·19 cites·18 claims
- 1678US4588378AContinuous heat treating furnace for metallic stripCHUGAI RO KOGYO KAISHA LTD·Filed 1984·Granted May 13, 1986·21 cites·3 claims
- 1776US6821114B2Gas-cooled single chamber heat treating furnace, and method for gas cooling in the furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 2001·Granted Nov 23, 2004·14 cites·6 claims
- 1875US4351632ABurner with suppressed NOx generationCHUGAI RO KOGYO KAISHA LTD·Filed 1980·Granted Sep 28, 1982·35 cites·4 claims
- 1974US4741695AWalking beam type reheating furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 1986·Granted May 3, 1988·30 cites·6 claims
- 2073US6309692B1Method of and apparatus for coating a substrate with a coating material having an even thicknessCHUGAI RO KOGYO KAISHA LTD·Filed 1996·Granted Oct 30, 2001·30 cites·2 claims
- 2172US3968756AMethod for incineration of a sludge containing chromium substance and apparatus thereforCHUGAI RO KOGYO KAISHA LTD·Filed 1975·Granted Jul 13, 1976·22 cites·10 claims
- 2268US4807853AContinuous furnace for gas carburizing and hardeningCHUGAI RO KOGYO KAISHA LTD·Filed 1986·Granted Feb 28, 1989·24 cites·19 claims
- 2367US9696090B2Thermal processing furnace for workpiecesCHUGAI RO KOGYO KAISHA LTD·Filed 2013·Granted Jul 4, 2017·1 cites·8 claims
- 2467US4852515ADevice for automatically controlling coating amount for use in coating machineCHUGAI RO KOGYO KAISHA LTD·Filed 1986·Granted Aug 1, 1989·32 cites·13 claims
- 2567US4657504ACombustion burnerCHUGAI RO KOGYO KAISHA LTD·Filed 1985·Granted Apr 14, 1987·29 cites·9 claims
- 2664US7625260B2Method of sealing glass panel assembly and sealing process furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 2005·Granted Dec 1, 2009·1 cites·2 claims
- 2762US7029625B2Continuous vacuum carburizing furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 2004·Granted Apr 18, 2006·12 cites·4 claims
- 2862US2024035114A1Zinc recovery methodCHUGAI RO KOGYO KAISHA LTD·Filed 2021·Application pending·0 cites
- 2960US4417871AMethod and apparatus for cooling skid pipes in continuous slab reheating furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 1982·Granted Nov 29, 1983·10 cites·2 claims
- 3058US10557666B2Cooling apparatus for metal stripCHUGAI RO KOGYO KAISHA LTD·Filed 2017·Granted Feb 11, 2020·0 cites·7 claims
- 3158US4447010AProportional regulation oil burner of low pressure air typeCHUGAI RO KOGYO KAISHA LTD·Filed 1982·Granted May 8, 1984·19 cites·4 claims
- 3256US6723188B2Steel workpiece oil quenching methodCHUGAI RO KOGYO KAISHA LTD·Filed 2002·Granted Apr 20, 2004·5 cites·8 claims
- 3356US4568274AHeat treating furnace for metallic stripCHUGAI RO KOGYO KAISHA LTD·Filed 1984·Granted Feb 4, 1986·8 cites·3 claims
- 3456US4170815AMethod of operating a reheating furnace in hot rolling lineCHUGAI RO KOGYO KAISHA LTD·Filed 1977·Granted Oct 16, 1979·14 cites·1 claims
- 3555US2025249478A1Coating apparatus and coating methodCHUGAI RO KOGYO KAISHA LTD·Filed 2022·Application pending·0 cites
- 3654US6221190B1Method and apparatus for processing glass panelCHUGAI RO KOGYO KAISHA LTD·Filed 1998·Granted Apr 24, 2001·12 cites·19 claims
- 3752US5201682ACRT exhaust ovenCHUGAI RO KOGYO KAISHA LTD·Filed 1991·Granted Apr 13, 1993·15 cites·5 claims
- 3852US4881185AMethod of measuring temperature and apparatus for effecting the methodCHUGAI RO KOGYO KAISHA LTD·Filed 1987·Granted Nov 14, 1989·19 cites·7 claims
- 3951US4938458AContinuous ion-carburizing and quenching systemCHUGAI RO KOGYO KAISHA LTD·Filed 1989·Granted Jul 3, 1990·10 cites·2 claims
- 4051US4501553AFloating equipment and floating-type heat treating furnace for striplike worksCHUGAI RO KOGYO KAISHA LTD·Filed 1984·Granted Feb 26, 1985·12 cites·4 claims
- 4150US2024001396A1Coating deviceCHUGAI RO KOGYO KAISHA LTD·Filed 2021·Application pending·0 cites
- 4249US12436514B2Method for simulating processing state of belt-shaped bodyCHUGAI RO KOGYO KAISHA LTD·Filed 2020·Granted Oct 7, 2025·0 cites·5 claims
- 4349US9625212B2Walking-beam type heating furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 2013·Granted Apr 18, 2017·0 cites·6 claims
- 4447US12350704B2Coating apparatus and coating methodCHUGAI RO KOGYO KAISHA LTD·Filed 2021·Granted Jul 8, 2025·0 cites·7 claims
- 4547US4836980AMethod of sintering an injection-molded articleCHUGAI RO KOGYO KAISHA LTD·Filed 1988·Granted Jun 6, 1989·13 cites·4 claims
- 4647US4457694AAutomatic air-fuel ratio control apparatusCHUGAI RO KOGYO KAISHA LTD·Filed 1982·Granted Jul 3, 1984·10 cites·6 claims
- 4746US5075987ARemoving apparatus for compressed snow and the likeCHUGAI RO KOGYO KAISHA LTD·Filed 1990·Granted Dec 31, 1991·21 cites·3 claims
- 4846US4820150AWalking beam type reheating furnaceCHUGAI RO KOGYO KAISHA LTD·Filed 1987·Granted Apr 11, 1989·11 cites·7 claims
- 4946US4691898AContinuous annealing furnace for metallic stripCHUGAI RO KOGYO KAISHA LTD·Filed 1985·Granted Sep 8, 1987·6 cites·3 claims
- 5045US6089186AVacuum coating forming deviceCHUGAI RO KOGYO KAISHA LTD·Filed 1999·Granted Jul 18, 2000·9 cites·11 claims
Showing the top 50 of 73 patent records by PatentIndex Score.
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