P

Inventor

TANAKA TOSHIAKI

302 patents
⚠️ This page may combine multiple inventors who share the name “TANAKA TOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOYOTA MOTOR CO LTD

28 patents
US6502391B1Jan 7, 2003

Exhaust emission control device of internal combustion engine

TOYOTA MOTOR CO LTD159 citations99
US6058700AMay 9, 2000

Device for purifying exhaust gas of engine

TOYOTA MOTOR CO LTD162 citations99
US5974791ANov 2, 1999

Exhaust gas purification device for an internal combustion engine

TOYOTA MOTOR CO LTD345 citations99
US5473887ADec 12, 1995

Exhaust purification device of internal combustion engine

TOYOTA MOTOR CO LTD340 citations99
US5437153AAug 1, 1995

Exhaust purification device of internal combustion engine

TOYOTA MOTOR CO LTD189 citations99
US6233927B1May 22, 2001

Exhaust gas purification device

TOYOTA MOTOR CO LTD97 citations98
US6192675B1Feb 27, 2001

Exhaust gas purification device for an internal combustion engine

TOYOTA MOTOR CO LTD103 citations98
US6178743B1Jan 30, 2001

Device for reactivating catalyst of engine

TOYOTA MOTOR CO LTD89 citations98
US6119452ASep 19, 2000

Device for purifying exhaust gas of internal combustion engine

TOYOTA MOTOR CO LTD91 citations98
US5715679AFeb 10, 1998

Exhaust purification device of an engine

TOYOTA MOTOR CO LTD104 citations98
US5713199AFeb 3, 1998

Device for detecting deterioration of NOx absorbent

TOYOTA MOTOR CO LTD128 citations98
US5473890ADec 12, 1995

Exhaust purification device of internal combustion engine

TOYOTA MOTOR CO LTD151 citations98
US5402641AApr 4, 1995

Exhaust gas purification apparatus for an internal combustion engine

TOYOTA MOTOR CO LTD188 citations98
US5233830AAug 10, 1993

Exhaust gas purification system for an internal combustion engine

TOYOTA MOTOR CO LTD119 citations98
US6708486B2Mar 23, 2004

Exhaust gas purification device of internal combustion engine

TOYOTA MOTOR CO LTD62 citations96
US6546721B2Apr 15, 2003

Exhaust gas purification device

TOYOTA MOTOR CO LTD60 citations96
US6367246B1Apr 9, 2002

Exhaust gas purification device for internal combustion engine

TOYOTA MOTOR CO LTD72 citations96
US6233925B1May 22, 2001

Exhaust discharge control device for internal combustion engine

TOYOTA MOTOR CO LTD76 citations96
US6212885B1Apr 10, 2001

Exhaust emission control system of internal combustion engine

TOYOTA MOTOR CO LTD69 citations96
US6083467AJul 4, 2000

Exhaust gas purifying catalyst and process for producing the same

TOYOTA MOTOR CO LTD62 citations96
US5839275ANov 24, 1998

Fuel injection control device for a direct injection type engine

TOYOTA MOTOR CO LTD69 citations96
US5782087AJul 21, 1998

Device for purifying exhaust gas of an engine

TOYOTA MOTOR CO LTD70 citations96
US5450722ASep 19, 1995

Exhaust purification device of internal combustion engine

TOYOTA MOTOR CO LTD79 citations96
US5365733ANov 22, 1994

Exhaust gas purification system for an internal combustion engine

TOYOTA MOTOR CO LTD47 citations96
US5433074AJul 18, 1995

Exhaust gas purification device for an engine

TOYOTA MOTOR CO LTD96 citations95
US11219884B2Jan 11, 2022

Cluster supported catalyst and production method therefor

TOYOTA MOTOR CO LTD21 citations93
US7272924B2Sep 25, 2007

Exhaust gas purification device of internal combustion engine

TOYOTA MOTOR CO LTD20 citations93
US7086222B2Aug 8, 2006

Exhaust gas purification device of internal combustion engine

TOYOTA MOTOR CO LTD19 citations93

TOSHIBA KK

6 patents

HITACHI LTD

3 patents

FUJITSU LTD

3 patents

HITACHI CHEMICAL CO LTD

2 patents

HITACHI DISPLAYS LTD

2 patents

TOSHIBA TEC KK

2 patents

KOKUSAI DENSHIN DENWA CO LTD

1 patent

HONDA MOTOR CO LTD

1 patent

SHARP KK

1 patent

TORAY INDUSTRIES

1 patent

Showing the top 50 of 302 patents by PatentIndex Score.