Hiromasa Nishioka

Person

Susono, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Exhaust gas control system and exhaust gas control method
- Patent number 12,138,589
- Issue date Nov 12, 2024
- Toyota Jidosha Kabushiki Kaisha
- Shinichi Takeshima
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Exhaust gas purification device
- Patent number 11,660,589
- Issue date May 30, 2023
- Toyota Jidosha Kabushiki Kaisha
- Koji Sugiura
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Exhaust gas purification device
- Patent number 11,602,742
- Issue date Mar 14, 2023
- Toyota Jidosha Kabushiki Kaisha
- Koji Sugiura
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Exhaust gas control apparatus and manufacturing method thereof
- Patent number 11,473,472
- Issue date Oct 18, 2022
- Toyota Jidosha Kabushiki Kaisha
- Koji Sugiura
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Structure for exhaust purification
- Patent number 11,415,039
- Issue date Aug 16, 2022
- Toyota Jidosha Kabushiki Kaisha
- Koji Sugiura
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Abnormality diagnosis apparatus
- Patent number 10,907,523
- Issue date Feb 2, 2021
- Toyota Jidosha Kabushiki Kaisha
- Tetsuya Sakuma
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Abnormality diagnosis apparatus
- Patent number 10,900,403
- Issue date Jan 26, 2021
- Toyota Jidosha Kabushiki Kaisha
- Tetsuya Sakuma
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Internal combustion engine and method for controlling internal comb...
- Patent number 10,890,092
- Issue date Jan 12, 2021
- Toyota Jidosha Kabushiki Kaisha
- Hirotaka Saitoh
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Electrochemical reactor and internal combustion engine provided wit...
- Patent number 10,794,250
- Issue date Oct 6, 2020
- Toyota Jidosha Kabushiki Kaisha
- Tetsuya Sakuma
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Internal combustion engine provided with electrochemical reactor an...
- Patent number 10,731,531
- Issue date Aug 4, 2020
- Toyota Jidosha Kabushiki Kaisha
- Keishi Takada
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust purification system of an internal combustion engine
- Patent number 10,641,150
- Issue date May 5, 2020
- Toyota Jidosha Kabushiki Kaisha
- Yasumasa Notake
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Exhaust gas control apparatus for internal combustion engine
- Patent number 10,550,779
- Issue date Feb 4, 2020
- Toyota Jidosha Kabushiki Kaisha
- Kazuhiro Umemoto
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust gas purification apparatus for an internal combustion engine
- Patent number 10,502,115
- Issue date Dec 10, 2019
- Toyota Jidosha Kabushiki Kaisha
- Masataka Ogushi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Heat and hydrogen generation device with ECU controlling air feed d...
- Patent number 10,494,256
- Issue date Dec 3, 2019
- Toyota Jidosha Kabushiki Kaisha
- Shinichi Takeshima
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Exhaust gas control system for internal combustion engine and contr...
- Patent number 10,487,712
- Issue date Nov 26, 2019
- Toyota Jidosha Kabushiki Kaisha
- Yuriko Hagimoto
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust gas control system for internal combustion engine
- Patent number 10,465,579
- Issue date Nov 5, 2019
- Toyota Jidosha Kabushiki Kaisha
- Yuriko Hagimoto
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Exhaust gas control apparatus for internal combustion engine and co...
- Patent number 10,450,923
- Issue date Oct 22, 2019
- Toyota Jidosha Kabushiki Kaisha
- Kazuhiro Umemoto
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Fuel addition system
- Patent number 10,443,468
- Issue date Oct 15, 2019
- Soken, Inc.
- Tetsuro Serai
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust purification system of internal combustion engine
- Patent number 10,358,963
- Issue date Jul 23, 2019
- Toyota Jidosha Kabushiki Kaisha
- Kiyoshi Fujiwara
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust gas control system for internal combustion engine
- Patent number 10,309,285
- Issue date Jun 4, 2019
- Toyota Jidosha Kabushiki Kaisha
- Daichi Imai
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust gas control system for internal combustion engine
- Patent number 10,302,000
- Issue date May 28, 2019
- Toyota Jidosha Kabushiki Kaisha
- Daichi Imai
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Exhaust purification filter
- Patent number 10,294,838
- Issue date May 21, 2019
- Toyota Jidosha Kabushiki Kaisha
- Kazuhiro Itoh
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Exhaust purification system of internal combustion engine
- Patent number 10,280,856
- Issue date May 7, 2019
- Toyota Jidosha Kabushiki Kaisha
- Kiyoshi Fujiwara
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust purification system of internal combustion engine
- Patent number 10,267,192
- Issue date Apr 23, 2019
- Toyota Jidosha Kabushiki Kaisha
- Shinichi Takeshima
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Selective NOx reduction catalyst
- Patent number 10,180,095
- Issue date Jan 15, 2019
- Toyota Jidosha Kabushiki Kaisha
- Hiroshi Otsuki
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust purification system of internal combustion engine
- Patent number 10,138,778
- Issue date Nov 27, 2018
- Toyota Jidosha Kabushiki Kaisha
- Hiromasa Nishioka
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Method of making a particulate filter carry a catalyst
- Patent number 10,071,369
- Issue date Sep 11, 2018
- Toyota Jidosha Kabushiki Kaisha
- Hiroshi Otsuki
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Exhaust gas control apparatus of internal combustion
- Patent number 9,988,960
- Issue date Jun 5, 2018
- Toyota Jidosha Kabushiki Kaisha
- Yoshihisa Tsukamoto
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust emission control system of internal combustion engine
- Patent number 9,988,962
- Issue date Jun 5, 2018
- Toyota Jidosha Kabushiki Kaisha
- Daichi Imai
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust gas purification apparatus for internal combustion engine
- Patent number 9,889,406
- Issue date Feb 13, 2018
- Toyota Jidosha Kabushiki Kaisha
- Kazuhiro Itoh
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Information Patent Application
EXHAUST GAS CONTROL SYSTEM AND EXHAUST GAS CONTROL METHOD
- Publication number 20230086873
- Publication date Mar 23, 2023
- Toyota Jidosha Kabushiki Kaisha
- Shinichi TAKESHIMA
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST GAS CONTROL APPARATUS AND MANUFACTURING METHOD THEREOF
- Publication number 20210324777
- Publication date Oct 21, 2021
- Toyota Jidosha Kabushiki Kaisha
- Koji SUGIURA
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST GAS PURIFICATION DEVICE
- Publication number 20210283589
- Publication date Sep 16, 2021
- Toyota Jidosha Kabushiki Kaisha
- Koji SUGIURA
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST GAS CONTROL APPARATUS, EXHAUST GAS CONTROL SYSTEM AND METHO...
- Publication number 20210033009
- Publication date Feb 4, 2021
- Toyota Jidosha Kabushiki Kaisha
- Koji SUGIURA
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST GAS PURIFICATION DEVICE
- Publication number 20200368735
- Publication date Nov 26, 2020
- Toyota Jidosha Kabushiki Kaisha
- Koji SUGIURA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
STRUCTURE
- Publication number 20200332698
- Publication date Oct 22, 2020
- Toyota Jidosha Kabushiki Kaisha
- Koji SUGIURA
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
FILTER CATALYST, EXHAUST GAS PURIFICATION DEVICE, AND METHOD FOR MA...
- Publication number 20200316578
- Publication date Oct 8, 2020
- Toyota Jidosha Kabushiki Kaisha
- Naoto MIYOSHI
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
INTERNAL COMBUSTION ENGINE PROVIDED WITH ELECTROCHEMICAL REACTOR AN...
- Publication number 20190345860
- Publication date Nov 14, 2019
- Toyota Jidosha Kabushiki Kaisha
- Keishi TAKADA
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EXHAUST PURIFICATION SYSTEM OF AN INTERNAL COMBUSTION ENGINE
- Publication number 20190316505
- Publication date Oct 17, 2019
- Toyota Jidosha Kabushiki Kaisha
- Yasumasa NOTAKE
- C01 - INORGANIC CHEMISTRY
Information Patent Application
ABNORMALITY DIAGNOSIS APPARATUS
- Publication number 20190284980
- Publication date Sep 19, 2019
- Toyota Jidosha Kabushiki Kaisha
- Tetsuya SAKUMA
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
ABNORMALITY DIAGNOSIS APPARATUS
- Publication number 20190277181
- Publication date Sep 12, 2019
- Toyota Jidosha Kabushiki Kaisha
- Tetsuya SAKUMA
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ABNORMALITY DIAGNOSIS APPARATUS AND VEHICLE
- Publication number 20190249586
- Publication date Aug 15, 2019
- Toyota Jidosha Kabushiki Kaisha
- Keishi TAKADA
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
ELECTROCHEMICAL REACTOR AND INTERNAL COMBUSTION ENGINE PROVIDED WIT...
- Publication number 20190195105
- Publication date Jun 27, 2019
- Toyota Jidosha Kabushiki Kaisha
- Tetsuya SAKUMA
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST GAS CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE AND CONTR...
- Publication number 20190010847
- Publication date Jan 10, 2019
- Toyota Jidosha Kabushiki Kaisha
- Yuriko HAGIMOTO
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
- Publication number 20180372012
- Publication date Dec 27, 2018
- Toyota Jidosha Kabushiki Kaisha
- Kazuhiro UMEMOTO
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EXHAUST GAS PURIFICATION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE
- Publication number 20180252133
- Publication date Sep 6, 2018
- Toyota Jidosha Kabushiki Kaisha
- Masataka Ogushi
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
FUEL ADDITION SYSTEM
- Publication number 20180238218
- Publication date Aug 23, 2018
- SOKEN INC.
- Tetsuro SERAI
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING INTERNAL COMB...
- Publication number 20180230879
- Publication date Aug 16, 2018
- Toyota Jidosha Kabushiki Kaisha
- Hirotaka SAITOH
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
- Publication number 20180179974
- Publication date Jun 28, 2018
- Toyota Jidosha Kabushiki Kaisha
- Kiyoshi FUJIWARA
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE AND CO...
- Publication number 20180128143
- Publication date May 10, 2018
- Toyota Jidosha Kabushiki Kaisha
- Kazuhiro UMEMOTO
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
- Publication number 20180128147
- Publication date May 10, 2018
- Toyota Jidosha Kabushiki Kaisha
- Kiyoshi FUJIWARA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
- Publication number 20180112569
- Publication date Apr 26, 2018
- Toyota Jidosha Kabushiki Kaisha
- Shinichi TAKESHIMA
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
EXHAUST GAS CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE
- Publication number 20180094558
- Publication date Apr 5, 2018
- Toyota Jidosha Kabushiki Kaisha
- Yuriko HAGIMOTO
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
HEAT AND HYDROGEN GENERATION DEVICE
- Publication number 20180073726
- Publication date Mar 15, 2018
- Toyota Jidosha Kabushiki Kaisha
- Shinichi TAKESHIMA
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
HEAT AND HYDROGEN GENERATION DEVICE
- Publication number 20180001289
- Publication date Jan 4, 2018
- Toyota Jidosha Kabushiki Kaisha
- Shinichi TAKESHIMA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
HEAT AND HYDROGEN GENERATION DEVICE
- Publication number 20180002175
- Publication date Jan 4, 2018
- Toyota Jidosha Kabushiki Kaisha
- Shinichi TAKESHIMA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
EXHAUST GAS CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE
- Publication number 20170211452
- Publication date Jul 27, 2017
- Toyota Jidosha Kabushiki Kaisha
- Daichi IMAI
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
EXHAUST GAS CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE
- Publication number 20170211451
- Publication date Jul 27, 2017
- Toyota Jidosha Kabushiki Kaisha
- Daichi IMAI
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE
- Publication number 20170204763
- Publication date Jul 20, 2017
- Toyota Jidosha Kabushiki Kaisha
- Hiromasa Nishioka
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
METHOD OF MAKING A PARTICULATE FILTER CARRY A CATALYST
- Publication number 20170157602
- Publication date Jun 8, 2017
- TOYOTA JIDOSHA KABUSHIKI KAISHA
- Hiroshi OTSUKI
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Hiromasa Nishioka

Person

Patents Grantslast 30 patents

Exhaust gas control system and exhaust gas control method

Exhaust gas purification device

Exhaust gas purification device

Exhaust gas control apparatus and manufacturing method thereof

Structure for exhaust purification

Abnormality diagnosis apparatus

Abnormality diagnosis apparatus

Internal combustion engine and method for controlling internal comb...

Electrochemical reactor and internal combustion engine provided wit...

Internal combustion engine provided with electrochemical reactor an...

Exhaust purification system of an internal combustion engine

Exhaust gas control apparatus for internal combustion engine

Exhaust gas purification apparatus for an internal combustion engine

Heat and hydrogen generation device with ECU controlling air feed d...

Exhaust gas control system for internal combustion engine and contr...

Exhaust gas control system for internal combustion engine

Exhaust gas control apparatus for internal combustion engine and co...

Fuel addition system

Exhaust purification system of internal combustion engine

Exhaust gas control system for internal combustion engine

Exhaust gas control system for internal combustion engine

Exhaust purification filter

Exhaust purification system of internal combustion engine

Exhaust purification system of internal combustion engine

Selective NOx reduction catalyst

Exhaust purification system of internal combustion engine

Method of making a particulate filter carry a catalyst

Exhaust gas control apparatus of internal combustion

Exhaust emission control system of internal combustion engine

Exhaust gas purification apparatus for internal combustion engine

Patents Applicationslast 30 patents

EXHAUST GAS CONTROL SYSTEM AND EXHAUST GAS CONTROL METHOD

EXHAUST GAS CONTROL APPARATUS AND MANUFACTURING METHOD THEREOF

EXHAUST GAS PURIFICATION DEVICE

EXHAUST GAS CONTROL APPARATUS, EXHAUST GAS CONTROL SYSTEM AND METHO...

EXHAUST GAS PURIFICATION DEVICE

STRUCTURE

FILTER CATALYST, EXHAUST GAS PURIFICATION DEVICE, AND METHOD FOR MA...

INTERNAL COMBUSTION ENGINE PROVIDED WITH ELECTROCHEMICAL REACTOR AN...

EXHAUST PURIFICATION SYSTEM OF AN INTERNAL COMBUSTION ENGINE

ABNORMALITY DIAGNOSIS APPARATUS

ABNORMALITY DIAGNOSIS APPARATUS

ABNORMALITY DIAGNOSIS APPARATUS AND VEHICLE

ELECTROCHEMICAL REACTOR AND INTERNAL COMBUSTION ENGINE PROVIDED WIT...

EXHAUST GAS CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE AND CONTR...

EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE

EXHAUST GAS PURIFICATION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE

FUEL ADDITION SYSTEM

INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING INTERNAL COMB...

EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE

EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE AND CO...

EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE

EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE

EXHAUST GAS CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE

HEAT AND HYDROGEN GENERATION DEVICE

HEAT AND HYDROGEN GENERATION DEVICE

HEAT AND HYDROGEN GENERATION DEVICE

EXHAUST GAS CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE

EXHAUST GAS CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE

EXHAUST PURIFICATION SYSTEM OF INTERNAL COMBUSTION ENGINE

METHOD OF MAKING A PARTICULATE FILTER CARRY A CATALYST