TO

Tomohiro Okumura

Sumitomo Electric Industries: 2 patents #217 of 2,038Top 15%
Overall (1997): #21,226 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5693236 Water-repellent surface structure and its fabrication method Ichiro Nakayama, Chikako Goto, Tadashi Imai 1997-12-02
5609690 Vacuum plasma processing apparatus and method Syouzou Watanabe, Masaki Suzuki, Ichiro Nakayama 1997-03-11