Inventor

ISHIKURA YUUJI

JP12 patents

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

OSHIKAWA YUKI

2 patents

US9625851B2Apr 18, 2017

Developing device and image forming apparatus incorporating same

OSHIKAWA YUKI2 citations72

US9772579B2Sep 26, 2017

Developing device and image forming apparatus incorporating same

OSHIKAWA YUKI0 citations51

OGAWA YOSHIKO

2 patents

US9158228B2Oct 13, 2015

Development device and image forming apparatus incorporating same

OGAWA YOSHIKO2 citations59

US8965254B2Feb 24, 2015

Development device, and image forming apparatus and process cartridge incorporating same

OGAWA YOSHIKO1 citations48

KADOTA ICHIRO

2 patents

US9594332B2Mar 14, 2017

Developing device and image forming apparatus and process cartridge incorporating same

KADOTA ICHIRO0 citations39

US9128416B2Sep 8, 2015

Developing device, process cartridge, image forming apparatus, and developer transfer method

KADOTA ICHIRO0 citations39

ENDOU OSAMU

2 patents

US9201336B2Dec 1, 2015

Developing device and image forming apparatus including a toner bearing member having a predetermined relationship with toner

ENDOU OSAMU0 citations35

US8929782B2Jan 6, 2015

Development device, and image forming apparatus and process cartridge incorporating same

ENDOU OSAMU0 citations35

SAITO OSAMU

1 patent

US12461470B2Nov 4, 2025

Developing device, process cartridge, and image forming apparatus including a holder which has projections within a hole accomodating a developer regulator or a developing roller

SAITO OSAMU0 citations49

ISHIKURA YUUJI

1 patent

US9008556B2Apr 14, 2015

Development device and image forming apparatus and process unit incorporating same

ISHIKURA YUUJI0 citations45

INOUE YUMI

1 patent

US12498652B2Dec 16, 2025

Developing device, process cartridge, and image forming apparatus

INOUE YUMI0 citations42

SAITO KEI

1 patent

US10649371B2May 12, 2020

Developing device, process cartridge, and image forming apparatus incorporating same

SAITO KEI0 citations40