Inventor

Kiyoshi Ohshima

Inventor

Kanagawa, JP

Overview

1981–2013

Patent span

Physics

Primary field (CPC G)

Patents· 15 as inventor

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

G03Gprimary

G03GElectrography58%

H04NPictorial communication, e.g. television15%

B41JTypewriters12%

G01DMeasuring not specially adapted for a specific variable4%

G06KGraphical data reading4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

Y10TTechnical subjects covered by former us classification4%

PatentTitleYear

8,515,323'Sheet wrapping avoidable fixing apparatus and image forming apparatus'2013 7,693,471'Sheet wrapping avoidable fixing apparatus and image forming apparatus'2010 7,346,305'Sheet wrapping avoidable fixing apparatus and image forming apparatus'2008 7,224,928'Sheet wrapping avoidable fixing apparatus and image forming apparatus'2007 6,795,676'Sheet wrapping avoidable fixing apparatus and image forming apparatus'2004 6,398,345'Image forming method and an apparatus for the same, and a cleaning device'2002 6,295,435'Image forming apparatus which corrects deviations between images of different colors'2001 5,315,323'Color image forming apparatus with means for biasing a recording head'1994 5,264,273'Structure of a recording medium for an electrostatic recorder'1993 5,245,396'Color image forming apparatus for use with a recording medium having a laterally extending registration mark'1993 5,202,534'Developing apparatus using a liquid developer and having a system for cleaning the development region with a vacuum pressure'1993 5,172,180'Image forming equipment with variable stepwise drive means operation'1992 4,707,126'Method of positioning original image to be copied and apparatus for performing the same'1987 4,373,800'Wet type electrophotographic copying machine'1983 4,247,194'Control system for electrophotographic copying machine'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–2010Patents assigned to RICOH KK (14)· patent assignee history

1981–1983Based in Kawasaki, JP· patent location history

1987–1994Based in Yokohama, JP· patent location history

2001–2013Based in Kanagawa, JP· patent location history

2002Patents assigned to ARRAY PRINTERS AB (1)· patent assignee history

2013Patents assigned to BABA TOSHIHIKO (1)· patent assignee history

2013Patents assigned to ECHIGO KATSUHIRO (1)· patent assignee history

2013Patents assigned to FUJITA TAKASHI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH KK	14	1981–2010
ARRAY PRINTERS AB	1	2002
BABA TOSHIHIKO	1	2013
ECHIGO KATSUHIRO	1	2013
FUJITA TAKASHI	1	2013

Locations

Location	Patents	Span
Kanagawa, JP	7	2001–2013
Yokohama, JP	6	1987–1994
Kawasaki, JP	2	1981–1983