Inventor
HAGIWARA KAZUNARI
JP37 patents
⚠️ This page may combine multiple inventors who share the name “HAGIWARA KAZUNARI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
35 patentsUS10452021B2Oct 22, 2019
Process cartridge and electrophotographic image forming apparatus
CANON KK14 citations85
US7378189B2May 27, 2008
Electrode material for lithium secondary battery, electrode structure employing electrode material, and lithium secondary battery having electrode structure
CANON KK13 citations84
US7251441B2Jul 31, 2007
Developing apparatus including magnetic field generating means, for use with a developer which includes a magnetic toner component
CANON KK13 citations84
US7239831B2Jul 3, 2007
Image forming apparatus when a maximum developing bias voltage |V| max and surface potential Vd of a charged image bearing member satisfy: |V| max≦|Vd|
CANON KK16 citations84
US7379693B2May 27, 2008
Developing apparatus
CANON KK14 citations83
US7233758B2Jun 19, 2007
Developing apparatus featuring a developer carrying member with an elastic surface layer
CANON KK9 citations74
US9442418B2Sep 13, 2016
Developing device, process cartridge and image forming apparatus
CANON KK4 citations73
US9298128B2Mar 29, 2016
Image forming apparatus
CANON KK3 citations73
US9261811B2Feb 16, 2016
Developer carrying member, developing assembly, process cartridge, and image forming apparatus
CANON KK3 citations73
US9134649B2Sep 15, 2015
Image forming apparatus
CANON KK4 citations73
US7463854B2Dec 9, 2008
Developing apparatus, processing cartridge, and image forming apparatus
CANON KK7 citations73
US7615313B2Nov 10, 2009
Electrode material for lithium secondary battery including particles having central portion and surface portion, electrode structure and lithium secondary battery
CANON KK4 citations63
US11036161B2Jun 15, 2021
Developer bearing member, developing apparatus, process cartridge, and image forming apparatus
CANON KK0 citations62
US7773923B2Aug 10, 2010
Developing apparatus and image forming apparatus
CANON KK4 citations62
US7440718B2Oct 21, 2008
Developing apparatus featuring image defect supression
CANON KK5 citations62
US7383003B2Jun 3, 2008
Developing apparatus for preventing ghost images and uneven image density
CANON KK4 citations62
US11782356B2Oct 10, 2023
Developing apparatus, process cartridge, and image forming apparatus
CANON KK0 citations60
US11442376B2Sep 13, 2022
Developing apparatus, process cartridge, and image forming apparatus
CANON KK0 citations60
US12510846B2Dec 30, 2025
Developing device
CANON KK0 citations52
US12393150B2Aug 19, 2025
Image forming apparatus having blurring supression
CANON KK0 citations52
US10935904B2Mar 2, 2021
Image forming apparatus
CANON KK0 citations52
US10747140B2Aug 18, 2020
Developing apparatus, developer carrying member, process cartridge, and image forming apparatus
CANON KK0 citations52
US9594320B2Mar 14, 2017
Toner and method of producing the toner
CANON KK1 citations52
US9405217B2Aug 2, 2016
Developer carrying member and image forming apparatus
CANON KK1 citations52
US7640150B2Dec 29, 2009
Method of judging the propriety of a positive electrode active material
CANON KK1 citations52
US9501000B2Nov 22, 2016
Image forming apparatus
CANON KK1 citations51
US9261814B2Feb 16, 2016
Developer carrying member, developing assembly, process cartridge, and image forming apparatus
CANON KK1 citations51
US8489011B2Jul 16, 2013
Image forming apparatus and image forming system
CANON KK0 citations51
US8019258B2Sep 13, 2011
Developing apparatus
CANON KK1 citations51
US7840168B2Nov 23, 2010
Developing apparatus
CANON KK1 citations51
US11892791B2Feb 6, 2024
Image forming apparatus
CANON KK0 citations49
US10719028B2Jul 21, 2020
Process cartridge and image forming apparatus
CANON KK0 citations41
US10444660B2Oct 15, 2019
Developing apparatus with regulating member having a curved contact surface and image forming apparatus
CANON KK0 citations41
US10437171B2Oct 8, 2019
Developing device, process cartridge and image forming apparatus
CANON KK0 citations41
US10394162B2Aug 27, 2019
Developing apparatus, process cartridge, and image forming apparatus
CANON KK0 citations41