Inventor
KUROKAWA JUNJI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “KUROKAWA JUNJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
14 patentsUS5499078AMar 12, 1996
Charge roller and image forming apparatus using the same
RICOH KK35 citations92
US5786091AJul 28, 1998
Charge roller for an image forming apparatus
RICOH KK32 citations91
US5479243ADec 26, 1995
Image forming apparatus and charging device thereof
RICOH KK24 citations91
US5619311AApr 8, 1997
Roller charging apparatus and image forming apparatus using the same
RICOH KK35 citations89
US4578331AMar 25, 1986
Color image forming method
RICOH KK36 citations89
US5792533AAug 11, 1998
Electrostatic charging roller
RICOH KK13 citations73
US4278343AJul 14, 1981
Inversion developing method for electrophotography and relevant apparatuses
RICOH KK8 citations73
US5689770ANov 18, 1997
Image forming apparatus which maintains a temperature of a charge roller
RICOH KK7 citations72
US3992089ANov 16, 1976
Reader-printer apparatus with multiple supply rolls and charging devices
RICOH KK15 citations72
US4965871AOct 23, 1990
Continuous plural page copying method for a copier
RICOH KK7 citations71
US5497219AMar 5, 1996
Charge rollers having improved layer structure and/or surface characteristics in an image forming apparatus
RICOH KK16 citations69
US5881344AMar 9, 1999
Image forming apparatus and charging device thereof
RICOH KK3 citations61
US5155533AOct 13, 1992
Bias application control device for image forming equipment
RICOH KK4 citations61
US5602627AFeb 11, 1997
Electrifying roller, roller electrifying apparatus using the same, and image forming apparatus using the same
RICOH KK0 citations51