Inventor

YAMAGUCHI KATSUJI

JP7 patents

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

RICOH CO LTD

2 patents

US10926970B2Feb 23, 2021

Post-processing apparatus, image forming apparatus incorporating the same, and image forming system incorporating the same

RICOH CO LTD6 citations70

US11465873B2Oct 11, 2022

Post-processing apparatus and image forming system

RICOH CO LTD2 citations69

FUJITSU LTD

2 patents

US7657176B2Feb 2, 2010

Method, apparatus, and system for evaluating faulty point in multi-stage optical amplifying and repeating transmission line

FUJITSU LTD5 citations60

US7280763B2Oct 9, 2007

Terminal apparatus and controlling method for optical output power

FUJITSU LTD6 citations56

NIFCO INC

1 patent

US4250596AFeb 17, 1981

Fastening system for securing a trim-fixing device to a substrate

NIFCO INC75 citations95

YAMAGUCHI KATSUJI

1 patent

US8326144B2Dec 4, 2012

Transmission path monitoring method and device

YAMAGUCHI KATSUJI5 citations55

SUZUKI RYO

1 patent

US11981531B2May 14, 2024

Sheet feeding device and image forming apparatus

SUZUKI RYO0 citations49