Inventor

TAGUMA KENICHI

JP10 patents

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

RICOH KK

4 patents

US7054587B2May 30, 2006

Image forming apparatus for recording on two sides in a single pass

RICOH KK10 citations72

US7796920B2Sep 14, 2010

Developing unit and image forming apparatus including the same

RICOH KK2 citations62

US7593671B2Sep 22, 2009

Developing device, a developing method, a process cartridge and an image forming apparatus

RICOH KK6 citations61

US7532354B2May 12, 2009

Duplex transferring apparatus and image forming apparatus

RICOH KK0 citations39

RICOH CO LTD

2 patents

US7925188B2Apr 12, 2011

Development device, process cartridge, and image forming apparatus using the development device

RICOH CO LTD20 citations91

US7884840B2Feb 8, 2011

Image forming method and apparatus for transfer and fixing image with one process

RICOH CO LTD7 citations83

YOSHIDA TAKAHIRO

1 patent

US12220915B2Feb 11, 2025

Liquid discharge apparatus, drive waveform generation device, and head drive method

YOSHIDA TAKAHIRO0 citations50

FUJITA TAKUYA

1 patent

US10919294B2Feb 16, 2021

Liquid discharging device and liquid discharging method

FUJITA TAKUYA0 citations48

TAGUMA KENICHI

1 patent

US8406676B2Mar 26, 2013

Image forming apparatus and image forming method

TAGUMA KENICHI1 citations43

YOKOYAMA RYOH

1 patent

US10065413B2Sep 4, 2018

Liquid discharging device, control apparatus for liquid discharging device, and method of controlling liquid discharging device

YOKOYAMA RYOH0 citations38