Inventor
OHNUMA TERUYUKI
JP13 patents
Patents
13 patentsUS5077142ADec 31, 1991
Electroluminescent devices
RICOH KK384 citations99
US5153073AOct 6, 1992
Electroluminescent device
RICOH KK80 citations96
US4707570ANov 17, 1987
Manual information input device
RICOH KK61 citations96
US5118986AJun 2, 1992
Electroluminescent device
RICOH KK36 citations92
US5093210AMar 3, 1992
Electroluminescent device
RICOH KK32 citations92
US4382420AMay 10, 1983
Development apparatus
RICOH KK42 citations92
US4286543ASep 1, 1981
Apparatus for developing electrostatic image
RICOH KK43 citations92
US4194830AMar 25, 1980
Development apparatus
RICOH KK54 citations92
US4193679AMar 18, 1980
Electrophotographic apparatus comprising improved imaging system
RICOH KK22 citations82
US4165393AAug 21, 1979
Magnetic brush developing process for electrostatic images
RICOH KK26 citations82
US4119060AOct 10, 1978
Toner charging apparatus
RICOH KK20 citations81
US4201465AMay 6, 1980
Drum cleaning process and apparatus for electrophotography
RICOH KK26 citations79
US4350749ASep 21, 1982
Reverse development method
RICOH KK16 citations74