Inventor
HOSHINO SEIJI
JP30 patents
⚠️ This page may combine multiple inventors who share the name “HOSHINO SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
9 patentsUS7110917B2Sep 19, 2006
Abnormality determining method, and abnormality determining apparatus and image forming apparatus using same
RICOH KK57 citations96
US6000784ADec 14, 1999
Structure and method for mounting an ink jet head
RICOH KK47 citations96
US7457550B2Nov 25, 2008
Abnormality determining apparatus, image forming apparatus, copying machine, and information obtaining method
RICOH KK32 citations93
US6669189B2Dec 30, 2003
Image forming apparatus
RICOH KK49 citations93
US7340204B2Mar 4, 2008
Color image forming apparatus and process cartridge therefor
RICOH KK21 citations92
US7778555B2Aug 17, 2010
Abnormality determining apparatus, image forming apparatus, copying machine, and information obtaining method
RICOH KK14 citations84
US4969048ANov 6, 1990
Image recorder having specific sheet tray with hopper and discharge portions
RICOH KK21 citations82
US6627015B1Sep 30, 2003
Structure and method for mounting an ink jet head
RICOH KK11 citations74
US5202556AApr 13, 1993
Document reading apparatus having photoconductive detector for detecting documents and document edges
RICOH KK13 citations68
RICOH CO LTD
8 patentsUS7971878B2Jul 5, 2011
Sheet conveying device and image forming apparatus
RICOH CO LTD19 citations84
US7903269B2Mar 8, 2011
Abnormality determining apparatus, image forming apparatus including the abnormality determining apparatus, and abnormality determining method
RICOH CO LTD11 citations84
US8364071B2Jan 29, 2013
Image forming apparatus and sheet conveying device having upstream and downstream rollers
RICOH CO LTD5 citations73
US8385762B2Feb 26, 2013
Transfer device and image forming apparatus
RICOH CO LTD3 citations63
US8010027B2Aug 30, 2011
Image forming apparatus
RICOH CO LTD4 citations63
US11691442B2Jul 4, 2023
Liquid discharge apparatus
RICOH CO LTD0 citations62
US11376873B2Jul 5, 2022
Liquid discharge apparatus
RICOH CO LTD0 citations62
US7945176B2May 17, 2011
Image forming apparatus including a gap forming unit
RICOH CO LTD3 citations62