Inventor
OGIYAMA HIROMI
JP44 patents
⚠️ This page may combine multiple inventors who share the name “OGIYAMA HIROMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
16 patentsUS6741821B2May 25, 2004
Image forming apparatus, and process cartridge for use in image forming apparatus
RICOH KK71 citations98
US6697595B2Feb 24, 2004
Method and apparatus for forming an image with no degradation
RICOH KK77 citations98
US6618565B2Sep 9, 2003
Transfer bias applying method for an image forming apparatus and device for the same
RICOH KK80 citations98
US6901234B2May 31, 2005
Image forming apparatus including an intermediate image transfer belt and high resistance contact member
RICOH KK70 citations97
US7003238B2Feb 21, 2006
Intermediate image transfer device for a color image forming apparatus
RICOH KK62 citations96
US6829450B2Dec 7, 2004
Transfer bias applying method for an image forming apparatus and device for the same
RICOH KK59 citations96
US6785500B2Aug 31, 2004
Image forming apparatus including image transfer body with elastic layer and coating layer
RICOH KK65 citations96
US6405002B2Jun 11, 2002
Image formation apparatus
RICOH KK75 citations95
US7610004B2Oct 27, 2009
Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of image
RICOH KK21 citations92
US7346287B2Mar 18, 2008
Transfer device for forming a stable transfer electric field, and an image forming apparatus including the transfer device
RICOH KK25 citations92
US7280792B2Oct 9, 2007
Method for evaluating changes in resistance of electric resistance member and image forming apparatus using same
RICOH KK34 citations92
US7203433B2Apr 10, 2007
Apparatus for detecting amount of toner deposit and controlling density of image, method of forming misalignment correction pattern, and apparatus for detecting and correcting misalignment of image
RICOH KK43 citations92
US5483330AJan 9, 1996
Image transfer unit of image formation apparatus
RICOH KK44 citations92
US4851874AJul 25, 1989
Developing apparatus for image recorder
RICOH KK24 citations92
US7773928B2Aug 10, 2010
Transfer-separation device and image forming apparatus
RICOH KK24 citations90
US4528937AJul 16, 1985
Device for forming a developer film
RICOH KK26 citations82
OGIYAMA HIROMI
6 patentsUS8942604B2Jan 27, 2015
Image forming apparatus
OGIYAMA HIROMI2 citations61
US8977153B2Mar 10, 2015
Image forming apparatus which uses an AC voltage and/or a DC voltage at a transfer nip depending on a surface roughness of a recording sheet
OGIYAMA HIROMI1 citations51
US8824940B2Sep 2, 2014
Image forming apparatus including heat transmission member
OGIYAMA HIROMI0 citations51
US8280283B2Oct 2, 2012
Heat transmission member included image forming apparatus
OGIYAMA HIROMI0 citations51
US9152070B2Oct 6, 2015
Transfer device and image forming apparatus
OGIYAMA HIROMI0 citations40
US8755723B2Jun 17, 2014
Image forming apparatus and method of eliminating a charge on a recording medium by applying an AC voltage
OGIYAMA HIROMI0 citations40
SHIMIZU YASUNOBU
5 patentsUS9195179B2Nov 24, 2015
Transfer device and image forming apparatus including same
SHIMIZU YASUNOBU5 citations73
US9291934B2Mar 22, 2016
Image forming apparatus
SHIMIZU YASUNOBU1 citations52
US9031436B2May 12, 2015
Image forming apparatus
SHIMIZU YASUNOBU0 citations51
US8824941B2Sep 2, 2014
Image transfer device and image forming apparatus incorporating same
SHIMIZU YASUNOBU1 citations51
US9057991B2Jun 16, 2015
Image forming apparatus
SHIMIZU YASUNOBU0 citations41
NAKAMURA KEIGO
4 patentsUS8787806B2Jul 22, 2014
Image forming apparatus
NAKAMURA KEIGO6 citations84
US9291955B2Mar 22, 2016
Image forming apparatus and transfer bias application device therein
NAKAMURA KEIGO0 citations52
US9164462B2Oct 20, 2015
Image forming apparatus
NAKAMURA KEIGO0 citations52
US9122207B2Sep 1, 2015
Image forming apparatus and transfer bias application device therein
NAKAMURA KEIGO1 citations52