Inventor
YOSHIOKA JUNKO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIOKA JUNKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON KAYAKU KK
6 patentsUS6648952B1Nov 18, 2003
Anthrapyridone compound, aqueous magenta ink compositions and ink-jet recording method
NIPPON KAYAKU KK21 citations92
US7034149B2Apr 25, 2006
Cyan dye mixture, water-based cyan ink composition, and method of ink-jet recording
NIPPON KAYAKU KK26 citations89
US6143062ANov 7, 2000
Water-soluble disazo compounds, aqueous ink compositions, and colored articles
NIPPON KAYAKU KK12 citations73
US5389486AFeb 14, 1995
Electrophotographic toner
NIPPON KAYAKU KK2 citations60
US5859242AJan 12, 1999
Process for producing dioxazine compounds, colored materials therewith and dioxazine compounds having a plate-like crystal form
NIPPON KAYAKU KK1 citations51
US5734050AMar 31, 1998
Process for producing dioxazine compounds, colored materials therewith and dioxazine compounds having a plate-like crystal form
NIPPON KAYAKU KK0 citations51