Inventor
MARUO KEIJI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “MARUO KEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KYOCERA DOCUMENT SOLUTIONS INC
13 patentsUS10295918B2May 21, 2019
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC6 citations72
US10191397B2Jan 29, 2019
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC5 citations72
US10241428B2Mar 26, 2019
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC2 citations71
US9256144B2Feb 9, 2016
Electrophotographic photosensitive member and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations51
US9023564B2May 5, 2015
Azoquinone compound, electrophotographic photoconductor, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations51
US12468255B2Nov 11, 2025
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations50
US12360468B2Jul 15, 2025
Polyarylate resin and electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations49
US12339618B2Jun 24, 2025
Polyarylate resin and electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations49
US10732526B2Aug 4, 2020
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations41
US10649351B2May 12, 2020
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations41
US9829811B2Nov 28, 2017
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations39
US9448496B2Sep 20, 2016
Electrophotographic photosensitive member
KYOCERA DOCUMENT SOLUTIONS INC0 citations39
US9436104B2Sep 6, 2016
Electrophotographic photosensitive member and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations39
KUBOSHIMA DAISUKE
3 patentsUS8686133B2Apr 1, 2014
Oxo-titanylphthalocyanine crystal, method for producing the same and electrophotographic photoreceptor
KUBOSHIMA DAISUKE0 citations48
US8679710B2Mar 25, 2014
Electrophotographic photoreceptor and image forming apparatus
KUBOSHIMA DAISUKE1 citations48
US8242261B2Aug 14, 2012
Oxo-titanylphthalocyanine crystal, method for producing the same, and electrophotographic photoreceptor
KUBOSHIMA DAISUKE1 citations48