Inventor

MURAKAMI NORIHIKO

JP4 patents

⚠️ This page may combine multiple inventors who share the name “MURAKAMI NORIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

RICOH CO LTD

1 patent

US10363757B2Jul 30, 2019

Sheet processing device and image forming system

RICOH CO LTD9 citations80

IWATA AKIKAZU

1 patent

US10105968B2Oct 23, 2018

Sheet processing device and image forming system

IWATA AKIKAZU9 citations76

OTSUKA DENSHI KK

1 patent

US12411108B2Sep 9, 2025

Zeta-potential measurement jig set

OTSUKA DENSHI KK0 citations44

SHIBATA HIDEFUMI

1 patent

US10023417B2Jul 17, 2018

Sheet post-processing apparatus and image forming system

SHIBATA HIDEFUMI0 citations40