Inventor
KAWAKAMI KATSUHIKO
15 patents
⚠️ This page may combine multiple inventors who share the name “KAWAKAMI KATSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SOFTARD IND CO LTD
8 patentsUS6203766B1Mar 20, 2001
Dumping device of catalyst inside reactor and dumping method using the same
SOFTARD IND CO LTD37 citations90
US7959870B2Jun 14, 2011
Separator and unloading device
SOFTARD IND CO LTD25 citations88
US6273102B1Aug 14, 2001
Method of cleaning and maintaining petroleum refining plants
SOFTARD IND CO LTD18 citations81
US6814945B2Nov 9, 2004
Dumping device of catalyst inside reactor and dumping method using the same
SOFTARD IND CO LTD4 citations60
US7112311B2Sep 26, 2006
Cooling method of hydrotreating plant and cooling unit therefor
SOFTARD IND CO LTD3 citations56
US5736108AApr 7, 1998
Refrigerant unit in hydrogen treating plant
SOFTARD IND CO LTD0 citations50
US9586189B2Mar 7, 2017
Catalyst loading device and catalyst loading method
SOFTARD IND CO LTD0 citations48
US10130978B2Nov 20, 2018
Cleaning method of oil tank and cleaning device of same
SOFTARD IND CO LTD0 citations31
NIPPON MINING CO
4 patentsUS4155875AMay 22, 1979
Method of softening caked catalyst
NIPPON MINING CO11 citations71
US4031031AJun 21, 1977
Method for treating catalyst used for catalytic reactions of hydrocarbons at the time of catalyst removal
NIPPON MINING CO14 citations71
US4135013AJan 16, 1979
Method for the prevention of stress corrosion cracking
NIPPON MINING CO5 citations59
US4268414AMay 19, 1981
Method for removing and treating waste catalyst
NIPPON MINING CO3 citations57