P

Inventor

FUKUDA TADASHI

JP43 patents
⚠️ This page may combine multiple inventors who share the name “FUKUDA TADASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CANON KK

28 patents
US8345317B2Jan 1, 2013

Copying apparatus

CANON KK8 citations84
US7430389B2Sep 30, 2008

Image forming apparatus with transparent toner developer

CANON KK9 citations84
US7349653B2Mar 25, 2008

Developing apparatus and image forming method featuring colored and transparent toners

CANON KK15 citations84
US10859935B2Dec 8, 2020

Toner

CANON KK7 citations82
US7236727B2Jun 26, 2007

Image forming apparatus

CANON KK9 citations74
US6987934B2Jan 17, 2006

Image forming apparatus

CANON KK10 citations74
US9891567B2Feb 13, 2018

Image forming apparatus

CANON KK2 citations73
US10656581B2May 19, 2020

Image forming apparatus

CANON KK2 citations71
US7558516B2Jul 7, 2009

Image forming apparatus wherein a carrier weight ratio in a first supply container and carrier weight ratio in a second supply container are substantially equal to each other

CANON KK4 citations62
US7349655B2Mar 25, 2008

Developing device and method of forming images

CANON KK6 citations62
US10156806B2Dec 18, 2018

Corona discharger and unit

CANON KK1 citations52
US9507286B2Nov 29, 2016

Image forming apparatus having charging member for charging photosensitive member

CANON KK1 citations52
US9383700B2Jul 5, 2016

Image forming apparatus

CANON KK1 citations51
US9933746B2Apr 3, 2018

Image forming apparatus

CANON KK1 citations49
US12265338B2Apr 1, 2025

Image forming apparatus having controller to control voltage to first and second corona chargers

CANON KK0 citations43
US10248046B2Apr 2, 2019

Image forming apparatus

CANON KK0 citations42
US9436118B2Sep 6, 2016

Image forming apparatus for forming an image to change the potential of a photoconductor

CANON KK0 citations42
US9164417B2Oct 20, 2015

Image forming apparatus with developer bearing member velocity control

CANON KK0 citations42
US9110431B2Aug 18, 2015

Image forming apparatus

CANON KK0 citations42
US9268249B2Feb 23, 2016

Charging device

CANON KK0 citations41
US9207557B2Dec 8, 2015

Image forming apparatus

CANON KK0 citations41
US9116455B2Aug 25, 2015

Charging device

CANON KK0 citations41
US9086644B2Jul 21, 2015

Charging device

CANON KK0 citations41
US9535358B2Jan 3, 2017

Charging device

CANON KK0 citations40
US9274450B2Mar 1, 2016

Charging device

CANON KK0 citations40
US10838316B2Nov 17, 2020

Image forming apparatus

CANON KK0 citations39
US10747149B2Aug 18, 2020

Image forming apparatus and image forming system

CANON KK0 citations39
US10698332B2Jun 30, 2020

Image forming apparatus

CANON KK0 citations39

SUMITOMO METAL IND

3 patents

TDK CORP

2 patents

PROTERIAL LTD

2 patents

HITACHI METALS LTD

2 patents

FUKUDA TADASHI

2 patents

DAINIPPON SCREEN MFG

1 patent

YAMAHA MOTOR CO LTD

1 patent

MITSUBISHI MATERIALS CORP

1 patent

SUZUKI SHINYA

1 patent