Inventor

Takafumi Wakai

Inventor

Kanagawa, JP

Overview

2009–2020

Patent span

Physics

Primary field (CPC G)

Patents· 14 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary

G03GElectrography100%

PatentTitleYear

10,775,716Image forming unit and image forming apparatus2020 10,761,473Developing device capable of suppressing the passing of a relatively large amount of developer and image forming apparatus therewith2020 10,684,588Image forming unit and image forming apparatus2020 10,684,572Developing device and image forming apparatus2020 10,663,881Developing device with airflow2020 10,289,022Developing device and image forming apparatus2019 10,031,440Developing device and image forming member including a clearance closing member with grooves2018 9,164,418'Developing device, and image forming apparatus using the same'2015 9,128,413'Developing device, and image forming apparatus using the same'2015 9,063,466'Developing device having an attaching unit for attaching developer and image forming apparatus including the same'2015 9,002,244'Image forming apparatus including developing device using toner holding member with specific surface roughness'2015 8,688,018'Developing device and image forming apparatus including the same'2014 8,238,802'Developing unit, image retainer unit and image forming apparatus'2012 7,620,352'Developing device having a projection portion for inhibiting scattering a developer and image forming apparatus using such developing device'2009

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009–2020Patents assigned to FUJI XEROX CO LTD (14)· patent assignee history

2009–2012Based in Niigata, JP· patent location history

2012–2014Patents assigned to WAKAI TAKAFUMI (2)· patent assignee history

2012Patents assigned to KAWAKAMI TOMOYUKI (1)· patent assignee history

2012Patents assigned to TANAKA KOICHI (1)· patent assignee history

2014Patents assigned to TSUTSUMI YASUYUKI (1)· patent assignee history

2014–2020Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJI XEROX CO LTD	14	2009–2020
WAKAI TAKAFUMIself	2	2012–2014
KAWAKAMI TOMOYUKI	1	2012
TANAKA KOICHI	1	2012
TSUTSUMI YASUYUKI	1	2014

Locations

Location	Patents	Span
Kanagawa, JP	12	2014–2020
Niigata, JP	2	2009–2012