Inventor
FUJINO YOSHIHARU
JP7 patents
⚠️ This page may combine multiple inventors who share the name “FUJINO YOSHIHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMADA CHEM CO
5 patentsUS4444591AApr 24, 1984
Chromogenic compounds and the use thereof as color former in copying or recording materials
YAMADA CHEM CO12 citations71
US4835291AMay 30, 1989
Divinyl compounds and chromogenic recording-material prepared by using thereof
YAMADA CHEM CO3 citations59
US4564679AJan 14, 1986
Chromogenic compounds
YAMADA CHEM CO3 citations59
US4845245AJul 4, 1989
Process for producing 3,3-bis-(4-dimethylaminophenyl)-6-dimethylaminophthalide
YAMADA CHEM CO0 citations49
US4808567AFeb 28, 1989
Divinyl compounds and chromogenic recording-material prepared by using thereof
YAMADA CHEM CO1 citations48