Inventor

TSUGAWA YASUHIKO

JP9 patents

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

RICOH CO LTD

5 patents

US12549675B2Feb 10, 2026

Image forming apparatus management system, image forming apparatus, managing apparatus, terminal apparatus, image forming apparatus managing method, and image forming program

RICOH CO LTD0 citations62

US12200179B2Jan 14, 2025

Image forming apparatus management system, image forming apparatus, managing apparatus, terminal apparatus, image forming apparatus managing method, and image forming program

RICOH CO LTD0 citations62

US11849093B2Dec 19, 2023

Image forming apparatus management system, image forming apparatus, managing apparatus, terminal apparatus, image forming apparatus managing method, and image forming program

RICOH CO LTD0 citations62

US11463604B2Oct 4, 2022

Image forming apparatus management system, image forming apparatus, managing apparatus, terminal apparatus, image forming apparatus managing method, and image forming program

RICOH CO LTD0 citations62

US10375274B2Aug 6, 2019

Image forming apparatus management system, image forming apparatus, managing apparatus, terminal apparatus, image forming apparatus managing method, and image forming program

RICOH CO LTD0 citations51

SAKAGAMI ATSUSHI

4 patents

US10038822B2Jul 31, 2018

Image forming apparatus management system, image forming apparatus, managing apparatus, terminal apparatus, image forming apparatus managing method, and image forming program

SAKAGAMI ATSUSHI1 citations61

US8714451B2May 6, 2014

Image forming apparatus management system, image forming apparatus, managing apparatus, terminal apparatus, image forming apparatus managing method, and image forming program

SAKAGAMI ATSUSHI1 citations61

US10827095B2Nov 3, 2020

Image forming apparatus management system, image forming apparatus, managing apparatus, terminal apparatus, image forming apparatus managing method, and image forming program

SAKAGAMI ATSUSHI0 citations51

US9519444B2Dec 13, 2016

Image forming apparatus management system, image forming apparatus, managing apparatus, terminal apparatus, image forming apparatus managing method, and image forming program

SAKAGAMI ATSUSHI0 citations51