TY

Tatsuaki Yukimasa

NC Nippon Oil Seal Industry Co.: 2 patents #1 of 17Top 6%
Overall (All Time): #2,372,379 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4306729 Sealing material Fumio Hiramatsu, Kenichi Ohsone 1981-12-22
4212476 Hydrodynamic seal Hideo Kawabata 1980-07-15