P

Inventor

SANO TOSHIYUKI

JP52 patents
⚠️ This page may combine multiple inventors who share the name “SANO TOSHIYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BROTHER IND LTD

26 patents
US11237497B2Feb 1, 2022

Image forming apparatus including multiple photosensitive drums and multiple developing rollers

BROTHER IND LTD3 citations73
US11163258B2Nov 2, 2021

Image forming apparatus having movable developing roller with bidirectionally-rotatable cam

BROTHER IND LTD2 citations73
US10859940B2Dec 8, 2020

Image forming apparatus with developing cartridges having increased toner capacities and reducible of contact duration between developing rollers and photosensitive drums

BROTHER IND LTD4 citations72
US11548749B2Jan 10, 2023

Image forming apparatus

BROTHER IND LTD1 citations62
US11334022B2May 17, 2022

Image forming apparatus including common drive source for driving developing roller and cam that moves developing roller toward and away from photosensitive drum

BROTHER IND LTD0 citations62
US11209744B2Dec 28, 2021

Image forming apparatus having cartridge and exposure device

BROTHER IND LTD1 citations62
US11079714B2Aug 3, 2021

Image forming apparatus including common drive source for driving developing roller and cam that moves developing roller toward and away from photosensitive drum

BROTHER IND LTD1 citations62
US11906924B2Feb 20, 2024

Image forming apparatus

BROTHER IND LTD0 citations52
US11673757B2Jun 13, 2023

Image forming apparatus

BROTHER IND LTD0 citations52
US11372362B2Jun 28, 2022

Image forming apparatus including cam having compact structure capable of detection of contact state and separated state of developing roller relative to photosensitive drum

BROTHER IND LTD0 citations52
US11353806B2Jun 7, 2022

Image forming apparatus configured to stop conveyance of sheet for prescribed time period before conveying sheet to photosensitive drum when sheet is fed from first tray

BROTHER IND LTD0 citations52
US11256190B2Feb 22, 2022

Image forming apparatus

BROTHER IND LTD0 citations52
US11181857B2Nov 23, 2021

Image forming apparatus moving developing rollers toward and away from corresponding photosensitive drums based on sheet interval between two sheets

BROTHER IND LTD0 citations52
US11144001B2Oct 12, 2021

Image forming apparatus having moving mechanisms to move developing rollers to be in contact with and separated from photosensitive drums

BROTHER IND LTD0 citations52
US11137718B2Oct 5, 2021

Image-forming apparatus capable of moving developing roller between contact position in contact with photosensitive drum and separated position away therefrom

BROTHER IND LTD0 citations52
US11106155B2Aug 31, 2021

Image-forming apparatus with reduced number of motors for moving developing rollers and altering rotation speed ratio of developing rollers to photosensitive drums

BROTHER IND LTD0 citations52
US11009806B2May 18, 2021

Image-forming apparatus including cam and cam follower for moving developing roller toward and away from photosensitive drum

BROTHER IND LTD0 citations52
US10990032B2Apr 27, 2021

Image-forming apparatus capable of controlling separation/contact timing between developing rollers and photosensitive drums in timed relation to sheet conveyance

BROTHER IND LTD0 citations52
US10955790B2Mar 23, 2021

Image forming apparatus

BROTHER IND LTD0 citations52
US11231659B2Jan 25, 2022

Image forming apparatus which switches from color to monochrome mode with charging and developing bias reduction

BROTHER IND LTD0 citations51
US11378895B2Jul 5, 2022

Image forming apparatus with developing roller separation processing

BROTHER IND LTD0 citations50
US11003131B2May 11, 2021

Image forming apparatus

BROTHER IND LTD0 citations50
US12025942B2Jul 2, 2024

Image forming apparatus

BROTHER IND LTD0 citations49
US11860558B2Jan 2, 2024

Image forming apparatus

BROTHER IND LTD0 citations49
US10585373B2Mar 10, 2020

Image forming apparatus capable of applying appropriate voltage to developing roller irrespective of deviation in pressing force of pressing member

BROTHER IND LTD0 citations42
US9033440B2May 19, 2015

Recording apparatus

BROTHER IND LTD0 citations42

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

8 patents

PANASONIC I PRO SENSING SOLUTIONS CO LTD

4 patents

SANO TOSHIYUKI

3 patents

PANASONIC CORP

3 patents

CANON KK

2 patents

TOSHIBA KK

1 patent

(unassigned)

1 patent

SONY CORP

1 patent

DISCO CORP

1 patent

Showing the top 50 of 52 patents by PatentIndex Score.