NK

Nobuo Kawahigashi

NK Nippon Valqua Kogyo Kabushiki Kaisha: 1 patents #1 of 14Top 8%
Overall (All Time): #3,985,677 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4707314 Process for producing polytetrafluoroethylene porous films Shigesou Hashida, Yasunobu Kojima 1987-11-17