FO

Fumio Oba

NT Ntn: 1 patents #814 of 1,364Top 60%
Overall (All Time): #3,712,921 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5615956 Roller bearing Toshihiko Matsushima, Hitoshi Murakami, Tomoaki Terada 1997-04-01