Inventor
SUMIYA SATOSHI
JP25 patents
⚠️ This page may combine multiple inventors who share the name “SUMIYA SATOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RIKEN KK
13 patentsUS5141714AAug 25, 1992
Exhaust gas cleaner
RIKEN KK78 citations94
US5824621AOct 20, 1998
Exhaust gas cleaner
RIKEN KK26 citations92
US5714130AFeb 3, 1998
Exhaust gas cleaner and method for cleaning exhaust gas
RIKEN KK26 citations92
US5645804AJul 8, 1997
Method for cleaning exhaust gas containing nitrogen oxides
RIKEN KK47 citations92
US5340548AAug 23, 1994
Exhaust gas cleaner and method of cleaning exhaust gas
RIKEN KK24 citations92
US5320999AJun 14, 1994
Exhaust gas cleaner and method of cleaning exhaust gas
RIKEN KK25 citations92
US5290530AMar 1, 1994
Method of cleaning exhaust gas
RIKEN KK32 citations92
US5213781AMay 25, 1993
Method of cleaning nitrogen oxide containing exhaust gas
RIKEN KK22 citations92
US5208202AMay 4, 1993
Exhaust gas cleaner and method of cleaning exhaust gas catalyst for cleaning exhaust gas
RIKEN KK28 citations92
US5154901AOct 13, 1992
Method of cleaning an exhaust gas containing nitrogen oxides and fine carbon-containing particulates
RIKEN KK31 citations91
US5108977AApr 28, 1992
Catalyst for cleaning exhaust gas
RIKEN KK29 citations89
US5384110AJan 24, 1995
Exhaust gas cleaner and method of cleaning exhaust gas
RIKEN KK16 citations82
US5885923AMar 23, 1999
Exhaust gas cleaner
RIKEN KK10 citations74
JOHNSON MATTHEY PLC
6 patentsUS9868115B2Jan 16, 2018
Oxidation catalyst for internal combustion engine exhaust gas treatment
JOHNSON MATTHEY PLC13 citations92
US10773251B2Sep 15, 2020
Oxidation catalyst for internal combustion engine exhaust gas treatment
JOHNSON MATTHEY PLC4 citations84
US10376867B2Aug 13, 2019
Oxidation catalyst for internal combustion engine exhaust gas treatment
JOHNSON MATTHEY PLC9 citations84
US10753248B2Aug 25, 2020
Exhaust gas purification catalyst
JOHNSON MATTHEY PLC9 citations80
US10233803B2Mar 19, 2019
Exhaust gas purification filter
JOHNSON MATTHEY PLC3 citations73
US10137412B2Nov 27, 2018
Filter
JOHNSON MATTHEY PLC0 citations52