SK

Seikichi Kitabatake

IC Idemitsu Kosan Co.: 1 patents #699 of 1,237Top 60%
NS Nippon Steel: 1 patents #2,111 of 4,423Top 50%
Overall (All Time): #2,630,205 of 4,157,543Top 65%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11214751 Metalworking oil composition and metalworking method Naoki Nagase, Hideo Sugii, Keiji Noma, Isao Noguchi, Takeshi Kubota +2 more 2022-01-04