SF

Shigeyuki Fujinaga

NC Nippon Pillar Packing Co.: 1 patents #101 of 218Top 50%
PI Pillar: 1 patents #1 of 17Top 6%
Overall (All Time): #1,737,074 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12416360 Mechanical seal device Masaya Nakatsuka, Masashi Hayashi 2025-09-16
6357753 Cartridge-type mechanical seal Hiroshi Yamasaki 2002-03-19