Inventor
TOSAKA HACHIRO
JP12 patents
⚠️ This page may combine multiple inventors who share the name “TOSAKA HACHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
9 patentsUS6168894B1Jan 2, 2001
Image forming method and dry toner therefor
RICOH KK79 citations96
US4762763AAug 9, 1988
Toner for developing electrostatic latent image
RICOH KK79 citations95
US5527657AJun 18, 1996
One-component magnetic toner for use in electrophotography
RICOH KK25 citations92
US5164774ANov 17, 1992
Developing device of the type forming thin layer of toner on toner conveying member, and dry color toner of one component type used therein
RICOH KK37 citations92
US4670368AJun 2, 1987
Magnetic developer for developing latent electrostatic images
RICOH KK16 citations73
US7090955B2Aug 15, 2006
Black toner, image forming method and image forming apparatus using the toner
RICOH KK5 citations72
US6969574B1Nov 29, 2005
Black toner, image forming method and image forming apparatus using the toner
RICOH KK9 citations72
US6821699B2Nov 23, 2004
Toner, image forming method and apparatus using the toner, and container containing the toner
RICOH KK9 citations72
US4401740AAug 30, 1983
Electrographic development process
RICOH KK14 citations71