EI

Etsuko Iguchi

TC Tokyo Ohka Kogyo Co.: 1 patents #12 of 39Top 35%
Overall (1997): #154,051 of 185,788Top 85%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5700625 Negative-working photoresist composition Mitsuru Sato, Katsumi Oomori, Kiyoshi Ishikawa, Fumitake Kaneko 1997-12-23