Inventor
KAWASHITA HIDEO
JP11 patents
⚠️ This page may combine multiple inventors who share the name “KAWASHITA HIDEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO CHEMICAL CO
6 patentsUS5488101AJan 30, 1996
Trisazo compounds, method for dyeing fiber materials, paper or leather using the same and inks containing the same
SUMITOMO CHEMICAL CO20 citations91
US5183501AFeb 2, 1993
Ink compositions for ink jet recording
SUMITOMO CHEMICAL CO35 citations90
US5530105AJun 25, 1996
Tetraskisazo compound and ink containing the compound
SUMITOMO CHEMICAL CO17 citations72
US5536819AJul 16, 1996
Trisazo compounds imparting deep black color a method for dyeing by using them and an ink containing them
SUMITOMO CHEMICAL CO9 citations71
US5489671AFeb 6, 1996
Trisazo compound imparting black color, method for dyeing by using it and ink containing it
SUMITOMO CHEMICAL CO6 citations60
US5149366ASep 22, 1992
Disazo compound and ink composition containing the same
SUMITOMO CHEMICAL CO3 citations60
TAOKA CHEMICAL CO LTD
3 patentsUS4732615AMar 22, 1988
Copper phthalocyanine compound and aqueous ink composition comprising the same
TAOKA CHEMICAL CO LTD71 citations95
US4771129ASep 13, 1988
Monoazo dyestuffs containing substituted amino triazine
TAOKA CHEMICAL CO LTD15 citations72
US4734489AMar 29, 1988
Trisazo compounds useful in producing water-resistant ink compositions
TAOKA CHEMICAL CO LTD10 citations68