Inventor
KAWAIDA YOSHIAKI
JP12 patents
⚠️ This page may combine multiple inventors who share the name “KAWAIDA YOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON KAYAKU KK
7 patentsUS7854797B2Dec 21, 2010
Porphyrazine coloring matter, ink, ink set, and colored product
NIPPON KAYAKU KK27 citations92
US7591888B2Sep 22, 2009
Porphyrazine coloring matter, ink, ink set and colored article
NIPPON KAYAKU KK37 citations92
US7771525B2Aug 10, 2010
Water-soluble azo compound or salt thereof, ink composition and colored product
NIPPON KAYAKU KK21 citations91
US7585361B2Sep 8, 2009
Porphyrazine coloring matter, ink, ink set and colored product
NIPPON KAYAKU KK32 citations91
US7326288B2Feb 5, 2008
Trisazo compound, ink composition, and colored object
NIPPON KAYAKU KK10 citations83
US7462228B2Dec 9, 2008
Water-base black ink composition and colored product
NIPPON KAYAKU KK10 citations82
US7951234B2May 31, 2011
Water-soluble azo compound or salt thereof, ink composition and colored product
NIPPON KAYAKU KK5 citations61