SO

Shigeru Ohtawa

TC Tokyo Ohka Kogyo Co.: 4 patents #253 of 684Top 40%
Overall (All Time): #1,283,268 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5922510 Photopolymerizable compositions Junichi Onodera, Kouji Harada 1999-07-13
5344747 Photopolymerizable compositions Junichi Onodera, Kouji Harada 1994-09-06
5147759 Photopolymerizable compositions Junichi Onodera, Kouji Harada 1992-09-15
4904571 Remover solution for photoresist Tsuyoshi Miyashita, Hiroyuki Tohda, Shozo Toda, Hisashi Nakane 1990-02-27