Inventor
EMA HIDEAKI
JP14 patents
Patents
14 patentsUS5432534AJul 11, 1995
Reversible thermosensitive coloring composition, recording medium, recording method, and image display apparatus using the recording medium
RICOH KK65 citations96
US5296439AMar 22, 1994
Reversible thermosensitive coloring recording medium, recording method, and image display apparatus using the recording medium
RICOH KK43 citations96
US4823001AApr 18, 1989
Method of measuring the amount of movement of an object having uniformly periodic structure
RICOH KK94 citations96
US4840922AJun 20, 1989
Method of manufacturing masked semiconductor laser
RICOH KK30 citations91
US4603087AJul 29, 1986
Fixing roll
RICOH KK20 citations82
US4286035AAug 25, 1981
Halogen doped selenium-tellurium alloy electrophotographic photoconductor
RICOH KK27 citations79
US5741752AApr 21, 1998
Transparent thermal recording medium
RICOH KK7 citations74
US5739077AApr 14, 1998
Transparent thermal recording medium
RICOH KK12 citations74
US5395433AMar 7, 1995
Reversible thermosensitive coloring composition, recording medium, recording method, and image display apparatus using the recording medium
RICOH KK12 citations74
US4379820AApr 12, 1983
Electrophotographic photoconductor of halogen-doped Se-Te alloy layers
RICOH KK7 citations72
US6656879B2Dec 2, 2003
Method of reversible selective manifestation of different states of functional element
RICOH KK2 citations63
US4191568AMar 4, 1980
Photosensitive material for electrophotography with dye containing overlayer
RICOH KK2 citations62
US4469771ASep 4, 1984
Electrophotographic light-sensitive member with thin overlayer
RICOH KK4 citations60
US4225648ASep 30, 1980
Electrophotographic light-sensitive member
RICOH KK3 citations60