Inventor
WATARIGUCHI KANAME
JP40 patents
Patents
40 patentsUS9869032B2Jan 16, 2018
Manufacturing method of phthalocyanine crystal by milling crystal transformation for at least 1,000 hours
CANON KK32 citations94
US9645515B2May 9, 2017
Electrophotographic photosensitive member and manufacturing method thereof, process cartridge and electrophotographic apparatus, and phthalocyanine crystal and manufacturing method thereof
CANON KK31 citations94
US9645516B2May 9, 2017
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
CANON KK36 citations94
US9563139B2Feb 7, 2017
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
CANON KK36 citations94
US9535347B2Jan 3, 2017
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
CANON KK23 citations94
US9459542B2Oct 4, 2016
Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and gallium phthalocyanine crystal
CANON KK24 citations94
US9436106B2Sep 6, 2016
Electrophotographic photosensitive member and manufacturing method therefor, process cartridge and electrophotographic apparatus including the electrophotographic photosensitive member, and phthalocyanine crystal and method producing therefor
CANON KK33 citations94
US9068083B2Jun 30, 2015
Method of producing gallium phthalocyanine crystal and method of producing electrophotographic photosensitive member using the method of producing gallium phthalocyanine crystal
CANON KK28 citations94
US8974991B2Mar 10, 2015
Electrophotographic photosensitive member, method of producing phthalocyanine crystal, method of producing electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and phthalocyanine crystal
CANON KK31 citations94
US8841052B2Sep 23, 2014
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
CANON KK32 citations94
US11137716B2Oct 5, 2021
Process cartridge and electrophotographic apparatus
CANON KK22 citations93
US11249407B2Feb 15, 2022
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
CANON KK12 citations86
US11237493B2Feb 1, 2022
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
CANON KK12 citations86
US11181837B2Nov 23, 2021
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK12 citations86
US11126097B2Sep 21, 2021
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK12 citations86
US11112719B2Sep 7, 2021
Process cartridge and electrophotographic apparatus capable of suppressing lateral running while maintaining satisfactory potential function
CANON KK20 citations85
US9500966B2Nov 22, 2016
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
CANON KK18 citations84
US11340553B2May 24, 2022
Process cartridge and electrophotographic apparatus
CANON KK18 citations83
US9709907B2Jul 18, 2017
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
CANON KK4 citations73
US10539888B2Jan 21, 2020
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK2 citations71
US10401746B2Sep 3, 2019
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK1 citations61
US12461458B2Nov 4, 2025
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations52
US12429784B2Sep 30, 2025
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations52
US12422760B2Sep 23, 2025
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations52
US12353164B2Jul 8, 2025
Electrophotographic apparatus
CANON KK0 citations52
US11947275B2Apr 2, 2024
Electrophotographic apparatus
CANON KK0 citations52
US11500301B2Nov 15, 2022
Electrophotographic photosensitive member, process cartridge, and electrophotographic image forming apparatus
CANON KK0 citations52
US11493853B2Nov 8, 2022
Electrophotographic photosensitive member, process cartridge and electrophotographic image forming apparatus
CANON KK0 citations52
US10012915B2Jul 3, 2018
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and chlorogallium phthalocyanine crystal and method for producing the same
CANON KK0 citations52
US9519232B2Dec 13, 2016
Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and hydroxygallium phthalocyanine crystal
CANON KK1 citations52
US9298115B2Mar 29, 2016
Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations52
US9104098B2Aug 11, 2015
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations52
US9086640B2Jul 21, 2015
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations52
US12326688B2Jun 10, 2025
Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
CANON KK0 citations51
US12326689B2Jun 10, 2025
Electrophotographic apparatus
CANON KK0 citations51
US9921499B2Mar 20, 2018
Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and phthalocyanine pigment
CANON KK1 citations51
US12443119B2Oct 14, 2025
Process cartridge and electrophotographic apparatus
CANON KK0 citations48
US10429753B2Oct 1, 2019
Electrophotographic photoconductor, process cartridge, and electrophotographic apparatus
CANON KK0 citations42
US8703372B2Apr 22, 2014
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations42
US10838313B2Nov 17, 2020
Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
CANON KK0 citations40