Inventor
OHUCHI YASUHIDE
JP3 patents
Patents
3 patentsUS6939926B2Sep 6, 2005
Phenol novolak resin, production process thereof, and positive photoresist composition using the same
TOKYO OHKA KOGYO CO LTD2 citations60
US10416560B2Sep 17, 2019
Coloring agent dispersion, photosensitive resin composition, cured product, organic el element, method for forming pattern, and method for producing photosensitive resin composition
TOKYO OHKA KOGYO CO LTD1 citations57
US10336708B2Jul 2, 2019
Imidazole compound, metal surface treatment liquid, metal surface treatment method, and laminate production method
TOKYO OHKA KOGYO CO LTD0 citations48