YO

Yonekichi Ogawa

SC Suisaku Co.: 5 patents #1 of 5Top 20%
Overall (All Time): #1,059,783 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5092991 Filtering device — 1992-03-03
4944871 Filtering device — 1990-07-31
4897188 Filtering device — 1990-01-30
4556485 Filter — 1985-12-03
4552657 Filter — 1985-11-12