KT

Katsuhiko Tayama

NC Nippon Kokan Co.: 1 patents #290 of 735Top 40%
NL Nippon Mining Company Limited: 1 patents #97 of 262Top 40%
Overall (All Time): #4,068,481 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4325752 Method for making shadow masks Toyoharu Suda, Kenji Araki, Masayuki Kurata, Hideo Yamana 1982-04-20