Inventor
HORIUCHI TAKERU
JP8 patents
Patents
8 patentsUS10539900B2Jan 21, 2020
Conductive member for electrophotographic apparatus
SUMITOMO RIKO CO LTD2 citations70
US11215937B2Jan 4, 2022
Charging roll or developing roll for electrophotographic device
SUMITOMO RIKO CO LTD2 citations65
US11753519B2Sep 12, 2023
Conductive roll for electrophotographic machine
SUMITOMO RIKO CO LTD1 citations55
US11385564B2Jul 12, 2022
Development roller for electrophotographic device
SUMITOMO RIKO CO LTD0 citations55
US12461464B2Nov 4, 2025
Charging roll for electrophotographic equipment
SUMITOMO RIKO CO LTD0 citations51
US10942472B2Mar 9, 2021
Electrophotography device development roll including shaft, elastic layer and surface layer
SUMITOMO RIKO CO LTD0 citations43
US10859938B2Dec 8, 2020
Charging member for electrophotographic equipment
SUMITOMO RIKO CO LTD0 citations38
US10795277B2Oct 6, 2020
Charging member for electrophotographic apparatus
SUMITOMO RIKO CO LTD0 citations36