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Inventor

Kazushige Oonishi

Inventor
Hitachi, JP

Overview

11→
Patents
1998–2011
Patent span
Physics
Primary field (CPC G)

Patents· 11 as inventor

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

G03Gprimary
G03GElectrography100%
PatentTitleYear
7,945,195'Developing device having developer regulating member, and image forming apparatus using developing device'20117,835,652'Image developing method, image developing device, and image forming device'20107,831,182'Developing device, image forming apparatus, and development error detecting method'20107,676,184'Developing apparatus'20106,928,257'Image forming and recording apparatus with three pressure members'20056,701,115'Color electrographic apparatus with developing device having separated toner supply and recovery chambers'20046,516,171'Color electrographic apparatus with developing device having separated toner supply and recovery chambers'20036,321,058'Developing device with toner storing and recovery chambers'20016,144,829'Developing device and electrophotographic device'20006,038,416'Developing apparatus and image forming apparatus having the same'20005,797,075'Image forming apparatus having improved toner carrier arrangement'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2004Patents assigned to HITACHI LTD (6)· patent assignee history
1998–2005Based in Hitachi, JP· patent location history
2005Patents assigned to RICOH PRINTING SYS LTD (1)· patent assignee history
2010–2011Patents assigned to RICOH CO LTD (2)· patent assignee history
2010Patents assigned to RICOH KK (2)· patent assignee history
2010–2011Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI LTD61998–2004
RICOH CO LTD22010–2011
RICOH KK22010
RICOH PRINTING SYS LTD12005
Locations
LocationPatentsSpan
Hitachi, JP71998–2005
Tokyo, JP42010–2011