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Inventor

Keizo Yasuda

Inventor
Kanagawa, JP

Overview

3→
Patents
1995–2014
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G03Gprimary
G03GElectrography50%
G06FElectric digital data processing25%
H04NPictorial communication, e.g. television25%
PatentTitleYear
8,705,058'Print/copy control system including a processing unit with a display unit for displaying a listing of advice information for comparison'20148,131,198'Image forming apparatus, fixing unit, and image forming method with improved heating mechanism'20125,400,123'Image forming apparatus capable of erasing an image recorded in a sheet'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995Based in Yokohama, JP· patent location history
2012–2014Patents assigned to RICOH CO LTD (2)· patent assignee history
2012–2014Patents assigned to YASUDA KEIZO (2)· patent assignee history
2012Patents assigned to AMITA AKIYASU (1)· patent assignee history
2012Patents assigned to HASEGAWA KENICHI (1)· patent assignee history
2012Patents assigned to ISHII KENJI (1)· patent assignee history
2012Based in Kawasaki, JP· patent location history
2014Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD22012–2014
YASUDA KEIZOself22012–2014
AMITA AKIYASU12012
HASEGAWA KENICHI12012
ISHII KENJI12012
Locations
LocationPatentsSpan
Kanagawa, JP12014
Kawasaki, JP12012
Yokohama, JP11995