Inventor
OHSHIMA KOHICHI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “OHSHIMA KOHICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
13 patentsUS7103301B2Sep 5, 2006
Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged
RICOH KK47 citations96
US5008172AApr 16, 1991
Electrophotographic photoconductor
RICOH KK52 citations95
US7383013B2Jun 3, 2008
Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged
RICOH KK18 citations92
US7251437B2Jul 31, 2007
Image formation apparatus having a body to be charged with specified properties and including the use of a protective material
RICOH KK44 citations92
US6050183AApr 18, 2000
Heat-sensitive stencil, process of fabricating same and method of producing printing master using same
RICOH KK17 citations92
US7251438B2Jul 31, 2007
Image forming apparatus using a contact or a proximity type of charging system including a protection substance on a moveable body to be charged
RICOH KK8 citations74
US4908292AMar 13, 1990
Method of making an electrophotographic inorganic photosensitive element using ultraviolet radiation
RICOH KK9 citations74
US6092461AJul 25, 2000
Heat-sensitive stencil, process of fabricating same and method of producing printing master using same
RICOH KK12 citations73
US4687723AAug 18, 1987
Electrophotographic photoconductor having a photosensitive layer of amorphous silicon carbonitride
RICOH KK16 citations72
US7550238B2Jun 23, 2009
Process cartridge, image forming apparatus, and image forming process
RICOH KK2 citations62
US7295788B2Nov 13, 2007
Image forming apparatus and process cartridge
RICOH KK3 citations60
US7517625B2Apr 14, 2009
Image forming apparatus and process cartridge
RICOH KK1 citations51
US7662533B2Feb 16, 2010
Image forming method, and image forming apparatus and process cartridge using the image forming method
RICOH KK0 citations41