MU

Masahiro Uchiumi

NC Nippon Piston Ring Co.: 1 patents #120 of 208Top 60%
Overall (All Time): #2,470,274 of 4,157,543Top 60%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11873780 Combined oil ring Kenji Arai, Kazuhiro Sameshima, Makoto Kajiwara, Hajime Ando 2024-01-16