ST

Shuyou Tsuchiya

NC Nippon Seiko Co.: 2 patents #67 of 315Top 25%
Overall (All Time): #2,366,837 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4343521 Ball bearing Yukihiro Akabane, Hisashi Satoh, Yukio Shiraiwa 1982-08-10
4334721 Ball bearing Hisashi Satoh, Yukihiro Akabane, Yukio Shiraiwa 1982-06-15