KO

Kazushige Ohbayashi

Ngk Spark Plug Co.: 26 patents #37 of 1,594Top 3%
Overall (All Time): #153,701 of 4,157,543Top 4%
26
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Issued Patents All Time

Showing 26–26 of 26 patents

Patent #TitleCo-InventorsDate
5955046 Catalytic material for removing nitrogen oxides apparatus for treating nitrogen oxides using the material, and method of removing nitrogen oxides Yasuyuki Okimura, Hitoshi Yokoi, Tadashi Hattori 1999-09-21