Inventor
HOSHIKA NORIHISA
JP17 patents
Patents
17 patentsUS5095335AMar 10, 1992
Copier with retractable charging unit to prevent damage to drum when removing process cartridge
CANON KK131 citations98
US5835818ANov 10, 1998
Service life informing device for charged member, informing method thereof, process cartridge and image forming apparatus
CANON KK65 citations96
US5956541ASep 21, 1999
Controlling image formation based on amount of developer recovered
CANON KK26 citations92
US5287149AFeb 15, 1994
Image forming apparatus having image transfer electrode contactable to transfer material
CANON KK27 citations92
US4916492AApr 10, 1990
Developer method and apparatus
CANON KK28 citations92
US4887131ADec 12, 1989
Developing apparatus using magnetic particles and toner particles
CANON KK36 citations92
US4873551AOct 10, 1989
Developing apparatus using magnetic carrier under AC field
CANON KK27 citations92
US4739363AApr 19, 1988
Image forming apparatus
CANON KK35 citations92
US4933254AJun 12, 1990
Method and apparatus for transferring toner from carrying member to image bearing member using chains of magnetic particles
CANON KK16 citations82
US6400918B1Jun 4, 2002
Cleaning device and image forming apparatus using the cleaning device
CANON KK9 citations74
US6226467B1May 1, 2001
Developer unit detachably attachable to image forming apparatus
CANON KK8 citations74
US5574545ANov 12, 1996
Method for transferring toner from developer carrying member to image bearing member using chains of magnetic particles formed on developer carrying member and contacting image bearing member, and alternating electric field
CANON KK8 citations74
US5353101AOct 4, 1994
Charging member featuring a cut edge, and charging device employing same for use in a detachable process unit in an image forming apparatus
CANON KK17 citations74
US4699499AOct 13, 1987
Image forming apparatus
CANON KK15 citations74
US6917772B2Jul 12, 2005
Image forming apparatus for controlling density of image, detachably attachable device, and memory device
CANON KK7 citations73
US5357322AOct 18, 1994
Charger
CANON KK7 citations73
US5321472AJun 14, 1994
Charging member with a bridging electrode structure and charging device using same in an image forming apparatus
CANON KK4 citations63