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Kumagaya, JP
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last 30 patents
Information
Patent Grant
Exhaust gas cleaner and method for cleaning exhaust gas
Patent number
5,882,607
Issue date
Mar 16, 1999
Agency of Industrial Science and Technology
Tatsuo Miyadera
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Exhaust gas cleaner
Patent number
5,824,621
Issue date
Oct 20, 1998
Kabushiki Kaisha Riken
Akira Abe
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Exhaust gas cleaner and method for cleaning exhaust gas
Patent number
5,780,002
Issue date
Jul 14, 1998
Jiro Hiraishi, Director-General of Agency of Industrial Science and Technology
Tatsuo Miyadera
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Exhaust gas cleaner and method for removing nitrogen oxides
Patent number
5,772,973
Issue date
Jun 30, 1998
Kabushiki Kaisha Riken
Kiyohide Yoshida
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Exhaust gas cleaner and method of cleaning exhaust gas
Patent number
5,747,410
Issue date
May 5, 1998
Kabushiki Kaisha Riken
Gyo Muramatsu
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for cleaning exhaust gas
Patent number
5,744,111
Issue date
Apr 28, 1998
Kabushiki Kaisha Riken
Gyo Muramatsu
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for cleaning exhaust gas
Patent number
5,744,112
Issue date
Apr 28, 1998
Kabushiki Kaisha Riken
Naoko Irite
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Exhaust gas cleaner and method for cleaning exhaust gas
Patent number
5,741,468
Issue date
Apr 21, 1998
Kabushiki Kaisha Riken
Mika Saito
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Exhaust gas cleaner comprising supported silver or silver oxide par...
Patent number
5,714,432
Issue date
Feb 3, 1998
Kabushiki Kaisha Riken
Kiyohide Yoshida
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Exhaust gas cleaner and method for cleaning same
Patent number
5,670,444
Issue date
Sep 23, 1997
Kabushiki Kaisha Riken
Kiyohide Yoshida
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Exhaust gas cleaner and method for cleaning exhaust gas
Patent number
5,670,443
Issue date
Sep 23, 1997
Kabushiki Kaisha Riken
Naoko Irite
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Exhaust gas cleaner and method for cleaning same
Patent number
5,658,542
Issue date
Aug 19, 1997
Kabushiki Kaisha Riken
Kiyohide Yoshida
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Exhaust gas cleaner and method for cleaning same
Patent number
5,658,543
Issue date
Aug 19, 1997
Kabushiki Kaisha Riken
Kiyohide Yoshida
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Exhaust gas cleaner and method for removing nitrogen oxides
Patent number
5,656,249
Issue date
Aug 12, 1997
Kabushiki Kaisha Riken
Kiyohide Yoshida
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Exhaust gas cleaner and method for cleaning same
Patent number
5,589,432
Issue date
Dec 31, 1996
Kabushiki Kaisha Riken
Kiyohide Yoshida
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL