Inventor
HIROTA TETSURO
JP35 patents
⚠️ This page may combine multiple inventors who share the name “HIROTA TETSURO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HIROTA TETSURO
10 patentsUS9523664B2Dec 20, 2016
Powder detector, image forming apparatus including same, and powder detecting method
HIROTA TETSURO4 citations73
US9507291B2Nov 29, 2016
Magnetic permeability detector, developing device, image forming apparatus, and oscillation signal frequency calculation method therefor
HIROTA TETSURO2 citations62
US9170233B2Oct 27, 2015
Magnetic permeability detector, developing device, image forming apparatus, and oscillation signal frequency calculation method therefor
HIROTA TETSURO2 citations62
US8259142B2Sep 4, 2012
Image forming apparatus with developer passage amount control electrodes
HIROTA TETSURO2 citations62
US8066348B2Nov 29, 2011
Image forming apparatus and defective nozzle detection method
HIROTA TETSURO4 citations62
US9507290B2Nov 29, 2016
Magnetic permeability detector, developing device, image forming apparatus, and oscillation signal frequency calculation method therefor
HIROTA TETSURO0 citations51
US10099876B2Oct 16, 2018
Sheet material thickness detection device, sheet material anomaly detection device, sheet material feeding device, and image forming device
HIROTA TETSURO0 citations41
US8897681B2Nov 25, 2014
Developing device, image forming apparatus, and image forming method
HIROTA TETSURO0 citations41
US8594540B2Nov 26, 2013
Development device, process cartridge incorporating same, and image forming apparatus incorporating same
HIROTA TETSURO0 citations40
US10114323B2Oct 30, 2018
Sheet size detector and image processing apparatus
HIROTA TETSURO0 citations39
RICOH KK
9 patentsUS5818482AOct 6, 1998
Ink jet printing head
RICOH KK134 citations96
US6331052B1Dec 18, 2001
Ink jet printing apparatus
RICOH KK70 citations94
US5754202AMay 19, 1998
Ink jet recording apparatus
RICOH KK77 citations94
US6053597AApr 25, 2000
Ink jet recording apparatus and method for automatically changing recording operation mode when interchangeable recording head unit is replaced
RICOH KK41 citations92
US5821953AOct 13, 1998
Ink-jet head driving system
RICOH KK34 citations92
US4661822AApr 28, 1987
Ink jet printer
RICOH KK33 citations89
US4644372AFeb 17, 1987
Ink jet printer
RICOH KK21 citations82
US4620249AOct 28, 1986
Apparatus for driving a floppy disc
RICOH KK11 citations69
US6147766ANov 14, 2000
Printing apparatus for increasing efficiency in transmitting image data between internal control units
RICOH KK5 citations62
RICOH CO LTD
4 patentsUS7992953B2Aug 9, 2011
Image forming apparatus and method of correcting deviation of shooting position
RICOH CO LTD14 citations84
US7914096B2Mar 29, 2011
Image forming apparatus, landing position shift correction method, and landing position shift correction sheet member
RICOH CO LTD13 citations84
US8376494B2Feb 19, 2013
Image forming device and image forming apparatus
RICOH CO LTD0 citations42
US10317814B2Jun 11, 2019
Powder supply device and image forming apparatus incorporating same
RICOH CO LTD0 citations41