AK

Ayako Kusaka

TC Tokyo Ohka Kogyo Co.: 2 patents #345 of 684Top 55%
Overall (All Time): #2,128,297 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7820360 Polymer compound, negative resist composition, and method of forming resist pattern Jun Iwashita 2010-10-26
7582409 Negative resist composition and method of forming resist pattern Jun Iwashita 2009-09-01