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Showji Asai

NI Ngk Insulators: 1 patents #1,271 of 2,083Top 65%
Overall (All Time): #3,924,646 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4818317 Method for producing ceramic honeycomb structural body Masashi Otaka 1989-04-04