Inventor

AKIRA NAOKI

JP3 patents

Patents

3 patents

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

US12570492B2Mar 10, 2026

Paper feed roll

SUMITOMO RIKO CO LTD0 citations53