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Tessho Yamada
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Aichi, JP
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last 30 patents
Information
Patent Grant
Method for measuring NOx concentration and NOx concentration sensor
Patent number
6,344,134
Issue date
Feb 5, 2002
NGK Spark Plug Co., Ltd.
Tessho Yamada
G01 - MEASURING TESTING
Information
Patent Grant
Temperature control for all range oxygen sensor
Patent number
6,120,677
Issue date
Sep 19, 2000
NGK Spark Plug Co., Ltd.
Tessho Yamada
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method of and apparatus for detecting a deteriorated condition of a...
Patent number
6,099,717
Issue date
Aug 8, 2000
NGK Spark Plug Co., Ltd.
Tessho Yamada
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Mold-type electronic part-containing connector
Patent number
6,010,366
Issue date
Jan 4, 2000
Sumitomo Wiring Systems, Ltd.
Fumiyoshi Tanigawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of and apparatus for detecting an activated condition of a w...
Patent number
5,976,350
Issue date
Nov 2, 1999
NGK Spark Plug Co., Ltd.
Tessho Yamada
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method and apparatus for controlling the energizing of a heater in...
Patent number
5,700,367
Issue date
Dec 23, 1997
NGK Spark Plug Co., Ltd.
Tessho Yamada
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method of activating zirconia oxygen sensor
Patent number
5,433,830
Issue date
Jul 18, 1995
NGK Spark Plug Co., Ltd.
Takeshi Kawai
G01 - MEASURING TESTING
Information
Patent Grant
Method for detecting deterioration of catalyst and measuring conver...
Patent number
5,357,750
Issue date
Oct 25, 1994
NGK Spark Plug Co., Ltd.
Yasuo Ito
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Oxygen sensor with higher resistance to repeated thermal-shocks and...
Patent number
5,288,389
Issue date
Feb 22, 1994
NGK Spark Plug Co., Ltd.
Tessho Yamada
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Air fuel ratio sensor
Patent number
5,174,885
Issue date
Dec 29, 1992
NGK Spark Plug Co. Ltd.
Nobuhiro Hayakawa
G01 - MEASURING TESTING
Information
Patent Grant
Control system and method for controlling plant having high order lag
Patent number
4,932,238
Issue date
Jun 12, 1990
NGK Spark Plug Co., Ltd.
Hideji Yoshida
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method for controlling an oxygen concentration sensing device
Patent number
4,808,269
Issue date
Feb 28, 1989
Honda Giken Kogyo Kabushiki Kaisha
Tomohiko Kawanabe
G01 - MEASURING TESTING