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Inventor
HOSHI HITOSHI
JP
3 patents
Patents
3 patents
US4602778A
Jul 29, 1986
Copying machine equipped with a correction apparatus for draft
RICOH KK
24 citations
80
US4952976A
Aug 28, 1990
Copier with a toner supply device
RICOH KK
21 citations
79
US4959687A
Sep 25, 1990
Bias power source controller for an image forming apparatus
RICOH KK
13 citations
70