Inventor
UKAWA NAOHIKO
US42 patents
⚠️ This page may combine multiple inventors who share the name “UKAWA NAOHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI HEAVY IND LTD
39 patentsUS4314345AFeb 2, 1982
Controlling the injection of ammonia in a dry type exhaust gas denitration process
MITSUBISHI HEAVY IND LTD66 citations95
US6656440B2Dec 2, 2003
Exhaust gas desulfurizing method and system therefor
MITSUBISHI HEAVY IND LTD28 citations93
US5132027AJul 21, 1992
Method and apparatus for treating absorbent solution slurry containing fly ash
MITSUBISHI HEAVY IND LTD24 citations93
US6029100AFeb 22, 2000
Method for controlling oxidation in flue gas desulfurization
MITSUBISHI HEAVY IND LTD28 citations92
US4302431ANov 24, 1981
Process for controlling nitrogen oxides in exhaust gases and apparatus therefor
MITSUBISHI HEAVY IND LTD36 citations92
US6863875B1Mar 8, 2005
Flue gas treating system and process
MITSUBISHI HEAVY IND LTD31 citations91
US6051055AApr 18, 2000
Exhaust gas desulfurization system
MITSUBISHI HEAVY IND LTD43 citations91
US6203598B1Mar 20, 2001
Flue gas treating process and system
MITSUBISHI HEAVY IND LTD40 citations90
US5756052AMay 26, 1998
Flue gas treatment system
MITSUBISHI HEAVY IND LTD46 citations89
US5605655AFeb 25, 1997
Gas-liquid contacting apparatus
MITSUBISHI HEAVY IND LTD25 citations89
US6096279AAug 1, 2000
Flue gas treating process and system
MITSUBISHI HEAVY IND LTD17 citations83
US5284557AFeb 8, 1994
Method for desulfurizing exhaust smoke
MITSUBISHI HEAVY IND LTD10 citations74
US5246678ASep 21, 1993
High-performance flue-gas desulfurization process
MITSUBISHI HEAVY IND LTD11 citations74
US5209905AMay 11, 1993
Wet-type exhaust gas desulfurization system having a means for supplying air
MITSUBISHI HEAVY IND LTD11 citations74
US5192518AMar 9, 1993
Method for desulfurizing exhaust smoke
MITSUBISHI HEAVY IND LTD12 citations74
US4632810ADec 30, 1986
Method for treating waste gas to separate and recover gypsum and dust therein
MITSUBISHI HEAVY IND LTD11 citations74
US6517792B2Feb 11, 2003
Combustion exhaust gas treatment system
MITSUBISHI HEAVY IND LTD9 citations73
US5395561AMar 7, 1995
Method of producing solid moldings from a by-product of wet limestone-gypsum desulfurization of flue gas
MITSUBISHI HEAVY IND LTD17 citations73
US4663724AMay 5, 1987
Method for the continuous determination of the concentration of a carbonate and a sulfite in a liquid
MITSUBISHI HEAVY IND LTD9 citations73
US5785901AJul 28, 1998
Gas-liquid contact apparatus
MITSUBISHI HEAVY IND LTD7 citations72
US5433936AJul 18, 1995
Flue gas desulfurization process
MITSUBISHI HEAVY IND LTD7 citations72
US5295400AMar 22, 1994
Slurry sampling device and method
MITSUBISHI HEAVY IND LTD11 citations72
US5266286ANov 30, 1993
Flue gas desulfurization process
MITSUBISHI HEAVY IND LTD12 citations72
US5034028AJul 23, 1991
Exhaust gas treating method
MITSUBISHI HEAVY IND LTD8 citations72
US4973570ANov 27, 1990
Method for producing a parallel gas flow type catalyst for oxidizing sulfurous acid gas
MITSUBISHI HEAVY IND LTD16 citations72
US5976376ANov 2, 1999
Sewage treatment process
MITSUBISHI HEAVY IND LTD9 citations71
US5616290AApr 1, 1997
Gas-liquid contacting apparatus
MITSUBISHI HEAVY IND LTD12 citations70
US5151248ASep 29, 1992
Pd-added austenitic stainless steel for use for high temperature concentrated sulfuric acid
MITSUBISHI HEAVY IND LTD17 citations68
US5662794ASep 2, 1997
Solid-liquid separator and wet flue gas desulfurization apparatus
MITSUBISHI HEAVY IND LTD5 citations63
US5221298AJun 22, 1993
Wet exhaust gas desulfurization apparatus and method
MITSUBISHI HEAVY IND LTD2 citations63
US4533531AAug 6, 1985
Exhaust fume desulfurization process
MITSUBISHI HEAVY IND LTD4 citations63
US6773680B2Aug 10, 2004
Combustion exhaust gas treatment system
MITSUBISHI HEAVY IND LTD3 citations62
US6511636B1Jan 28, 2003
Combustion exhaust gas treatment system
MITSUBISHI HEAVY IND LTD2 citations62
US4038367AJul 26, 1977
Process for the removal of SOx and NOx from waste gases using alkali metal or alkaline earth metal iodide
MITSUBISHI HEAVY IND LTD6 citations62
US4038368AJul 26, 1977
Process for removing oxides of nitrogen and sulfur from exhaust gases
MITSUBISHI HEAVY IND LTD5 citations62
US4420465ADec 13, 1983
Process for desulfurizing an exhaust gas
MITSUBISHI HEAVY IND LTD3 citations59
US6740297B2May 25, 2004
Combustion exhaust gas treatment system
MITSUBISHI HEAVY IND LTD0 citations52
US6113863ASep 5, 2000
Combustion exhaust gas treatment system
MITSUBISHI HEAVY IND LTD0 citations52
US9789438B2Oct 17, 2017
Air pollution control apparatus
MITSUBISHI HEAVY IND LTD0 citations42