WK

Wataru Kanai

TC Tokyo Ohka Kogyo Co.: 3 patents #291 of 684Top 45%
Overall (All Time): #1,682,170 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4468447 Photosensitive bisazide composition for dry development 1984-08-28
4401745 Composition and process for ultra-fine pattern formation Hisashi Nakane, Minoru Tsuda 1983-08-30
4388397 Photosensitive composition for dry development 1983-06-14