Inventor · disambiguated record
Keiichi Nakagawa
Also filed as: NAKAGAWA KEIICHI
19 granted patents·27 pending applications·21 citations·filing 1989–2021
89Inventor score
Files withMITSUBISHI HEAVY IND LTD38NAKAGAWA KEIICHI4CALSONIC KANSEI CORP1MITSUBISH HEAVY IND LTD1NIPPON KOKAN KK1
Top patents by PatentIndex Score
46 records- 0172US9556497B2Blast furnaceMITSUBISHI HEAVY IND LTD·Filed 2013·Granted Jan 31, 2017·1 cites·7 claims
- 0272US9359569B2Method for deactivating coalMITSUBISHI HEAVY IND LTD·Filed 2012·Granted Jun 7, 2016·1 cites·1 claims
- 0369US9085739B2Method for gas treatment of coalNAKAGAWA KEIICHI·Filed 2011·Granted Jul 21, 2015·1 cites·7 claims
- 0462US12503362B2Hydrogen release and storage system, hydrogen release and storage method, ammonia production apparatus, gas turbine, fuel cell, and steel millMITSUBISHI HEAVY IND LTD·Filed 2021·Granted Dec 23, 2025·0 cites·9 claims
- 0561US6913300B2Bumper structure for a motor vehicleCALSONIC KANSEI CORP·Filed 2003·Granted Jul 5, 2005·12 cites·20 claims
- 0657US8585267B2Head lamp attachment structureNAKAGAWA KEIICHI·Filed 2008·Granted Nov 19, 2013·2 cites·4 claims
- 0756US12410085B2Waste treatment system and waste treatment methodMITSUBISHI HEAVY IND LTD·Filed 2021·Granted Sep 9, 2025·0 cites·16 claims
- 0856US10287523B2Coal deactivation processing deviceMITSUBISHI HEAVY IND LTD·Filed 2014·Granted May 14, 2019·0 cites·2 claims
- 0954US10059896B2Inactivation treatment apparatusMITSUBISHI HEAVY IND LTD·Filed 2014·Granted Aug 28, 2018·0 cites·7 claims
- 1054US2016289582A1Coal deactivation processing deviceMITSUBISHI HEAVY IND LTD·Filed 2014·Application pending·0 cites
- 1154US2009305178A1Two-fluid spray burnerMITSUBISHI HEAVY IND LTD·Filed 2007·Application pending·0 cites
- 1253US9528065B2Coal deactivation processing device and equipment for producing modified coal using sameMITSUBISHI HEAVY IND LTD·Filed 2013·Granted Dec 27, 2016·0 cites·6 claims
- 1353US2021060508A1Reformed gas consuming plant and source gas reforming methodMITSUBISHI HEAVY IND LTD·Filed 2020·Application pending·0 cites
- 1453US2016168496A1Coal for boiler fuelMITSUBISHI HEAVY IND LTD·Filed 2014·Application pending·0 cites
- 1553US2016053180A1Carbonization deviceMITSUBISHI HEAVY IND LTD·Filed 2014·Application pending·0 cites
- 1652US9758741B2Coal deactivation processing deviceMITSUBISHI HEAVY IND LTD·Filed 2013·Granted Sep 12, 2017·0 cites·13 claims
- 1752US9624558B2Blast-furnace blowing coal and method for producing sameMITSUBISHI HEAVY IND LTD·Filed 2013·Granted Apr 18, 2017·0 cites·3 claims
- 1852US9617491B2Coal deactivation treatment deviceMITSUBISHI HEAVY IND LTD·Filed 2012·Granted Apr 11, 2017·0 cites·7 claims
- 1952US2023257783A1Waste treatment system and waste treatment methodMITSUBISHI HEAVY IND LTD·Filed 2021·Application pending·0 cites
- 2051US11497939B2Method for reconstructing x-ray cone-beam CT imagesNAKAGAWA KEIICHI·Filed 2020·Granted Nov 15, 2022·0 cites·10 claims
- 2151US9605225B2Method for preparing blast furnace blow-in coalMITSUBISHI HEAVY IND LTD·Filed 2013·Granted Mar 28, 2017·0 cites·3 claims
- 2251US2015197699A1Method for producing carbonized coal, method for working blast furnace, and method for operating boilerMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 2351US2017058372A1Method for preparing coal to be injected into blast furnace, coal to be injected into blast furnace, and usage of sameMITSUBISHI HEAVY IND LTD·Filed 2014·Application pending·0 cites
- 2450US11607562B2System of and method for particle beam radiotherapyNAKAGAWA KEIICHI·Filed 2021·Granted Mar 21, 2023·0 cites·14 claims
- 2550US2016060531A1Carbonization deviceMITSUBISHI HEAVY IND LTD·Filed 2014·Application pending·0 cites
- 2650US2016032192A1Carbonization deviceMITSUBISHI HEAVY IND LTD·Filed 2014·Application pending·0 cites
- 2749US9617609B2Method for preparing blast furnace blow-in coalMITSUBISHI HEAVY IND LTD·Filed 2013·Granted Apr 11, 2017·0 cites·2 claims
- 2849US2015247212A1Blow pipe structureMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 2949US2015284816A1Slag removal deviceMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 3049US2015021158A1Coal dry distillation deviceMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 3149US2015225804A1Pulverized-coal injection device, blast furnace facility provided with the same, and pulverized-coal supplying methodMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 3249US2015240322A1Slag removal device and slag removal methodMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 3349US2015275322A1Blow-pipe structureMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 3448US2009291401A1BurnerMITSUBISHI HEAVY IND LTD·Filed 2007·Application pending·0 cites
- 3548US2015191803A1Blast-furnace-blow-in charcoal and method for producing sameMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 3648US2015203929A1Method for producing pig iron and blast furnace facility using sameMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 3748US2015176096A1Method for producing pig iron, and blast furnace to be used thereforMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 3848US2015184939A1Blast furnace installationMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 3947US2015175890A1Coal dry-distillation device and modified coal production equipment using sameMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 4047US2015027872A1Modified coal production equipmentMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 4146US2014373436A1Reformed coal production equipmentMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 4246US2014373435A1Reformed coal production equipment, and method for controlling sameMITSUBISHI HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 4345US2015218666A1Blast furnace installationMITSUBISH HEAVY IND LTD·Filed 2013·Application pending·0 cites
- 4442US10478774B2DenitratorMITSUBISHI HEAVY IND LTD·Filed 2016·Granted Nov 19, 2019·0 cites·6 claims
- 4537US2018360406A1Image Processing Device and Image Processing MethodUNIV TOKYO·Filed 2016·Application pending·0 cites
- 4634US5123957AMethod for manufacturing low carbon ferrochrome with high chromium contentNIPPON KOKAN KK·Filed 1989·Granted Jun 23, 1992·4 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →