Inventor
MITSUI YOSHIHIRO
JP56 patents
⚠️ This page may combine multiple inventors who share the name “MITSUI YOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
36 patentsUS10691063B2Jun 23, 2020
Process cartridge and image forming apparatus
CANON KK9 citations92
US7912390B2Mar 22, 2011
Image forming apparatus
CANON KK14 citations92
US9696684B2Jul 4, 2017
Process cartridge and image forming apparatus
CANON KK7 citations84
US9057976B2Jun 16, 2015
Image forming apparatus
CANON KK10 citations84
US9696663B2Jul 4, 2017
Image forming apparatus
CANON KK2 citations73
US9411259B2Aug 9, 2016
Image forming apparatus
CANON KK5 citations73
US9411260B2Aug 9, 2016
Image forming apparatus having developing bias and supply bias application units
CANON KK3 citations73
US9519264B2Dec 13, 2016
Process cartridge and image forming apparatus
CANON KK2 citations63
US7957658B2Jun 7, 2011
Image forming apparatus
CANON KK4 citations63
US12585223B2Mar 24, 2026
Process cartridge and image forming apparatus
CANON KK0 citations62
US12292711B2May 6, 2025
Process cartridge and image forming apparatus
CANON KK0 citations62
US12174582B2Dec 24, 2024
Process cartridge and image forming apparatus
CANON KK0 citations62
US12130581B2Oct 29, 2024
Process cartridge and image forming apparatus
CANON KK0 citations62
US11687029B2Jun 27, 2023
Process cartridge and image forming apparatus
CANON KK0 citations62
US11320782B2May 3, 2022
Process cartridge and image forming apparatus
CANON KK0 citations62
US11314201B2Apr 26, 2022
Process cartridge and image forming apparatus
CANON KK0 citations62
US11003106B2May 11, 2021
Process cartridge and image forming apparatus
CANON KK1 citations62
US10990053B2Apr 27, 2021
Image forming apparatus, cartridge, image forming system, and storage medium for correcting exposure amounts
CANON KK1 citations62
US10877395B2Dec 29, 2020
Developing device, process cartridge and image forming apparatus
CANON KK1 citations62
US9280133B2Mar 8, 2016
Development device, process cartridge, and image forming apparatus
CANON KK2 citations62
US9964921B2May 8, 2018
Process cartridge and image forming apparatus
CANON KK0 citations52
US9658591B2May 23, 2017
Cleaning apparatus, process cartridge, and image forming apparatus
CANON KK0 citations52
US9383712B2Jul 5, 2016
Image forming apparatus
CANON KK1 citations52
US9310713B2Apr 12, 2016
Developer container, developing device, process cartridge, and image forming apparatus
CANON KK1 citations52
US11099503B2Aug 24, 2021
Image forming apparatus
CANON KK0 citations51
US11073781B2Jul 27, 2021
Image forming apparatus that suppresses occurrence of image smearing by maintaining a metal soap on a surface of a photoconductor
CANON KK0 citations51
US11073788B2Jul 27, 2021
Process cartridge providing fixation layer to developer on image bearing member and image forming apparatus
CANON KK0 citations51
US10976685B2Apr 13, 2021
Image forming apparatus to perform an activation control using a developing bias applying member and a speed control unit
CANON KK0 citations51
US10955792B2Mar 23, 2021
Process cartridge including photosensitive member having multiple grooves and image forming apparatus including the process cartridge
CANON KK0 citations51
US10852175B2Dec 1, 2020
Image forming apparatus
CANON KK0 citations51
US9804549B2Oct 31, 2017
Image forming apparatus
CANON KK1 citations51
US11022933B2Jun 1, 2021
Process cartridge, image forming apparatus and cleaning apparatus
CANON KK0 citations50
US10852662B2Dec 1, 2020
Developing device, process cartridge and image forming apparatus
CANON KK0 citations49
US10838356B2Nov 17, 2020
Process cartridge and image forming apparatus
CANON KK0 citations48
US10761453B2Sep 1, 2020
Developing device, process cartridge, and image forming apparatus
CANON KK0 citations41
US10732534B2Aug 4, 2020
Process cartridge and image forming apparatus
CANON KK0 citations41
EPSON CORP
5 patentsUS4417257ANov 22, 1983
Printing head for thermal printer
EPSON CORP12 citations74
US4142463AMar 6, 1979
Print character selection mechanism
EPSON CORP8 citations72
US4258624AMar 31, 1981
Miniaturized printer
EPSON CORP6 citations63
US4182240AJan 8, 1980
Printer control assembly
EPSON CORP3 citations61
US4386565AJun 7, 1983
Printer apparatus using electromagnet
EPSON CORP1 citations52
SUWA SEIKOSHA KK
5 patentsUS4358776ANov 9, 1982
Thermal printer and improved platen
SUWA SEIKOSHA KK13 citations74
US4297697AOct 27, 1981
Power supply method for liquid crystal display
SUWA SEIKOSHA KK9 citations74
US3988652AOct 26, 1976
Stabilized brushless motor drive circuit
SUWA SEIKOSHA KK15 citations74
US3952219AApr 20, 1976
Compact motor
SUWA SEIKOSHA KK10 citations74
US4284002AAug 18, 1981
Character-selecting mechanism for a printer
SUWA SEIKOSHA KK3 citations61
DAI ICHI SEIKO CO LTD
3 patentsUS7008575B2Mar 7, 2006
Resin sealing mold and resin sealing method
DAI ICHI SEIKO CO LTD5 citations71
US8029720B2Oct 4, 2011
Resin sealing apparatus and resin sealing method
DAI ICHI SEIKO CO LTD1 citations52
US7413425B2Aug 19, 2008
Resin sealing mold and resin sealing method
DAI ICHI SEIKO CO LTD1 citations50
MITSUI YOSHIHIRO
1 patentShowing the top 50 of 56 patents by PatentIndex Score.