YK

Yazuru Kataoka

NC Nkk Co.: 1 patents #579 of 1,173Top 50%
Overall (All Time): #3,943,385 of 4,157,543Top 95%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4886558 Method for heat-treating steel rail head Toyokazu Teramoto, Akio Fujibayashi, Kozo Fukuda, Mashiro Ueda, Shinichi Nagahashi +5 more 1989-12-12