Inventor
SUZUKI HIROKATSU
JP35 patents
⚠️ This page may combine multiple inventors who share the name “SUZUKI HIROKATSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
15 patentsUS6366751B1Apr 2, 2002
Image forming apparatus including preselected range between charge injection layer and voltage potential
RICOH KK182 citations99
US6757509B2Jun 29, 2004
Image forming apparatus
RICOH KK56 citations96
US6686946B2Feb 3, 2004
Density unevenness suppressing image forming apparatus and method
RICOH KK106 citations96
US6654579B2Nov 25, 2003
Image forming apparatus including diamond-like or amorphous structure containing hydrogen surface protection layer
RICOH KK65 citations96
US6625409B2Sep 23, 2003
Image forming apparatus having a diamond-like structure surface protection layer on a photoconductive layer
RICOH KK70 citations96
US5937228AAug 10, 1999
Image forming apparatus
RICOH KK60 citations96
US6978109B2Dec 20, 2005
Image forming apparatus
RICOH KK20 citations93
US5970280AOct 19, 1999
Image forming apparatus having a developing bias control unit
RICOH KK35 citations93
US7620336B2Nov 17, 2009
Apparatus and method for fixing an image
RICOH KK21 citations92
US7212753B2May 1, 2007
Image forming apparatus and process cartridge
RICOH KK23 citations92
US7627260B2Dec 1, 2009
Development apparatus, process cartridge, and image forming apparatus
RICOH KK9 citations84
US7577387B2Aug 18, 2009
Developing unit having improved agent recovery and supply system and image forming apparatus using the same
RICOH KK6 citations63
US7796920B2Sep 14, 2010
Developing unit and image forming apparatus including the same
RICOH KK2 citations62
US7724394B2May 25, 2010
Image forming apparatus and image forming method using pseudo half tone processing with different resolutions
RICOH KK5 citations62
US7593671B2Sep 22, 2009
Developing device, a developing method, a process cartridge and an image forming apparatus
RICOH KK6 citations61
TOSHIBA KK
4 patentsRICOH CO LTD
4 patentsUS8385793B2Feb 26, 2013
Image forming apparatus preventing gaps between a conveyor belt and transfer sheet
RICOH CO LTD8 citations84
US7884840B2Feb 8, 2011
Image forming method and apparatus for transfer and fixing image with one process
RICOH CO LTD7 citations83
US7835671B2Nov 16, 2010
Developing device using two-component developer and image forming apparatus equipped with the developing device
RICOH CO LTD7 citations74
US7941075B2May 10, 2011
Image forming apparatus including a cleaner-less image carrier cleaning system
RICOH CO LTD4 citations63