KO

Koichi Okita

Sumitomo Electric Industries: 1 patents #611 of 1,892Top 35%
Overall (1994): #103,039 of 165,921Top 65%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5296510 Method for treating the surface of a thin porous film material of tetrafluoroethylene resin Katsuya Yamada, Shin-ichi Toyo-oka, Shigeru Asako 1994-03-22