Inventor
MIYASHITA TAKAAKI
JP6 patents
Patents
6 patentsUS5684523ANov 4, 1997
Optical line printhead and an LED chip used therefor
RICOH KK145 citations96
US5604606AFeb 18, 1997
Picture reading apparatus with flaring light elimination capability
RICOH KK30 citations92
US5363240ANov 8, 1994
Image forming device and method for producing it
RICOH KK29 citations90
US4586811AMay 6, 1986
Confidential document reproduction prevention method
RICOH KK53 citations90
US4818074AApr 4, 1989
Projection device for irradiating a light to a display device and optically magnifying and projecting a reflection light therefrom
RICOH KK19 citations81
US4776683AOct 11, 1988
Optical imaging device
RICOH KK22 citations81