KI

Kyoichi Ikeya

NC Nippon Piston Ring Co.: 1 patents #120 of 208Top 60%
Overall (All Time): #2,602,814 of 4,157,543Top 65%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11739840 Piston ring Ofuyu Sakai, Makoto Kajiwara 2023-08-29