KO

Keiji Oono

WI Wako Pure Chemical Industries: 3 patents #2 of 29Top 7%
Sumitomo Electric Industries: 2 patents #217 of 2,038Top 15%
📍 Sakado, JP: #1 of 13 inventorsTop 8%
Overall (1997): #14,137 of 185,788Top 8%
3
Patents 1997

Issued Patents 1997

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5677112 Process for forming a pattern on a semiconductor substrate using a deep ultraviolet absorbent composition Fumiyoshi Urano, Hiroshi Matsuda, Masayuki Endo, Satoshi Kobayashi 1997-10-14
5670299 Pattern formation process Fumiyoshi Urano, Hirotoshi Fujie, Takaaki Negishi 1997-09-23
5627006 Resist material Fumiyoshi Urano, Hirotoshi Fujie 1997-05-06