Inventor

Noriyuki Usui

Inventor

Kawasaki, JP

Overview

1990–2001

Patent span

Physics

Primary field (CPC G)

Patents· 9 as inventor

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

G03Gprimary

G03GElectrography100%

PatentTitleYear

6,266,501'Image-forming apparatus having a seal for a developer and a method for detecting a removal of the seal'2001 6,148,161'Image forming apparatus with improved toner density control'2000 6,144,822'Image forming apparatus having detachable transfer roller and discharge device'2000 6,101,361'Image forming apparatus with a device and a method to increase contact area between a transfer sheet and an image carrier'2000 5,884,134'Image forming apparatus with a device to increase contact area between a transfer sheet and an image carrier'1999 5,864,733'Developing device for image forming apparatus'1999 5,175,584'Cleaning control device for image forming equipment'1992 5,083,169'Device for removing deposits from a photoconductive element of an image recorder which is movable between a cleaning and non-cleaning position'1992 4,945,389'Method of cleaning a photoconductive element of an image recorder'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1990–2001Patents assigned to RICOH KK (9)· patent assignee history

1990–2001Based in Kawasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH KK	9	1990–2001

Locations

Location	Patents	Span
Kawasaki, JP	9	1990–2001