Inventor
KOGAWARA TOSHIRO
JP9 patents
Patents
9 patentsUS4931370AJun 5, 1990
Color toner composition for developing electrostatic images
DAINIPPON INK & CHEMICALS56 citations94
US6335139B1Jan 1, 2002
Toner for electrostatic image development and image forming method employing the same
DAINIPPON INK & CHEMICALS32 citations91
US6248491B1Jun 19, 2001
Toner for electrostatic image development
DAINIPPON INK & CHEMICALS29 citations91
US6534229B2Mar 18, 2003
Developer for electrostatic image development
DAINIPPON INK & CHEMICALS14 citations82
US6653040B2Nov 25, 2003
Electrophotographic carrier, developer using the same, and developing method
DAINIPPON INK & CHEMICALS15 citations80
US6238836B1May 29, 2001
Toner composition and developer for electrostatic image development
DAINIPPON INK & CHEMICALS7 citations71
US5017450AMay 21, 1991
Color toner composition for electrostatic developer
DAINIPPON INK & CHEMICALS17 citations71
US6455218B2Sep 24, 2002
Developer for electrostatic image development and image forming method using the same
DAINIPPON INK & CHEMICALS5 citations59
US7732114B2Jun 8, 2010
Modified nigrosine, its production method, and toner for developing electrostatic charge images using this modified nigrosine
DAINIPPON INK & CHEMICALS0 citations50