Inventor
HAMASAKI KAZUNARI
JP25 patents
⚠️ This page may combine multiple inventors who share the name “HAMASAKI KAZUNARI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KYOCERA MITA CORP
10 patentsUS6391505B1May 21, 2002
Phthalocyanine crystal and its production, and electrophotosensitive material using the same
KYOCERA MITA CORP24 citations92
US6528645B1Mar 4, 2003
Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material and production method of the same
KYOCERA MITA CORP15 citations83
US7838191B2Nov 23, 2010
Electrophotographic photoconductor having titanyl phthalocyanine and image forming apparatus
KYOCERA MITA CORP4 citations61
US7700251B2Apr 20, 2010
Electrophotographic photoconductor and image-forming apparatus
KYOCERA MITA CORP4 citations61
US7057034B2Jun 6, 2006
Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material
KYOCERA MITA CORP5 citations61
US7416825B2Aug 26, 2008
Single layer type electrophotographic photoconductor and image forming device
KYOCERA MITA CORP3 citations60
US6376142B2Apr 23, 2002
Electrophotosensitive material containing specific maleimide derivative
KYOCERA MITA CORP0 citations51
US7101647B2Sep 5, 2006
Electrophotosensitive material
KYOCERA MITA CORP1 citations50
US7754402B2Jul 13, 2010
Electrophotographic photoconductive member and image forming apparatus
KYOCERA MITA CORP1 citations47
US7844201B2Nov 30, 2010
Color image forming apparatus and color image forming method
KYOCERA MITA CORP0 citations40
KYOCERA DOCUMENT SOLUTIONS INC
8 patentsUS11003101B2May 11, 2021
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations61
US9285692B2Mar 15, 2016
Positively-charged single-layer electrophotographic photoreceptor and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC1 citations51
US12468255B2Nov 11, 2025
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations50
US9217981B2Dec 22, 2015
Positively-charged single-layer electrophotographic photoreceptor and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC1 citations49
US10802411B2Oct 13, 2020
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations40
US10635008B2Apr 28, 2020
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations40
US10539889B2Jan 21, 2020
Electrophotographic photosensitive member, process cartridge, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations40
US9298112B2Mar 29, 2016
Method of manufacturing positively-charged single-layer electrophotographic photoreceptor, positively-charged single-layer electrophotographic photoreceptor, and image forming apparatus
KYOCERA DOCUMENT SOLUTIONS INC0 citations39
MITA INDUSTRIAL CO LTD
4 patentsUS6090514AJul 18, 2000
Electrophotographic photoreceptor
MITA INDUSTRIAL CO LTD12 citations73
US6063534AMay 16, 2000
Nitro group-containing naphthoquinone derivatives and photosensitive material using the same for electrophotography
MITA INDUSTRIAL CO LTD7 citations73
US5976742ANov 2, 1999
Naphthoquinone derivative and electrophotographic material using the naphthoquinone derivative
MITA INDUSTRIAL CO LTD11 citations72
US6022658AFeb 8, 2000
Nitro group-containing naphthoquinone derivatives and photosensitive material using the same for electrophotography
MITA INDUSTRIAL CO LTD1 citations51