Inventor

IZUMI YASUTAKA

JP4 patents

Patents

4 patents

US5606181AFeb 25, 1997

Edge emitting type light emitting diode array heads

RICOH KK204 citations98

US7271823B2Sep 18, 2007

Optical scanner and image forming apparatus

RICOH KK61 citations97

US7106483B2Sep 12, 2006

Optical scanner and image forming apparatus

RICOH KK71 citations97

US7164516B2Jan 16, 2007

Optical scanner and image forming apparatus

RICOH KK44 citations95