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Takumi Narahara
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Nagoya, JP
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last 30 patents
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Patent Grant
Oxygen sensing element and process of manufacturing the same
Patent number
4,857,165
Issue date
Aug 15, 1989
NGK Insulators, Ltd.
Fujio Ishiguro
G01 - MEASURING TESTING
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Patent Grant
Oxygen sensing element and method for producing the same
Patent number
4,851,105
Issue date
Jul 25, 1989
NGK Insulators, Ltd.
Fujio Ishiguro
G01 - MEASURING TESTING
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Patent Grant
Method of producing oxygen sensing element
Patent number
4,835,009
Issue date
May 30, 1989
NGK Insulators, Ltd.
Fujio Ishiguro
G01 - MEASURING TESTING