Inventor
MARUYAMA SHOJI
JP37 patents
⚠️ This page may combine multiple inventors who share the name “MARUYAMA SHOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
16 patentsUS5298476AMar 29, 1994
Rewritable bar code display medium, and image display method and image display apparatus using the same
RICOH KK123 citations99
US5521371AMay 28, 1996
Rewritable bar code display medium, and image display method and image display apparatus using the same
RICOH KK50 citations96
US5432534AJul 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
US5028467AJul 2, 1991
Dithiolate metal complex compound, production method of the same, and optical information recording medium comprising the same
RICOH KK28 citations93
US5547802AAug 20, 1996
Image formation materials and image fading prevention method
RICOH KK30 citations92
US5521138AMay 28, 1996
Reversible thermosensitive coloring composition, and recording medium using the same
RICOH KK29 citations92
US5306687AApr 26, 1994
Thermosensitive recording material
RICOH KK29 citations92
US5395433AMar 7, 1995
Reversible thermosensitive coloring composition, recording medium, recording method, and image display apparatus using the recording medium
RICOH KK12 citations74
US4250240AFeb 10, 1981
Photosensitive material for use in electrophotography
RICOH KK19 citations74
US5868821AFeb 9, 1999
Thermally reversible color forming composition and thermally reversible recording medium using the thermally reversible color forming composition
RICOH KK12 citations73
US3984378AOct 5, 1976
Process for manufacturing nitropyrene-formaldehyde resin
RICOH KK13 citations72
US6656879B2Dec 2, 2003
Method of reversible selective manifestation of different states of functional element
RICOH KK2 citations63
US5306689AApr 26, 1994
Reversible thermosensitive recording material
RICOH KK2 citations63
US3933492AJan 20, 1976
Novel photoconductive substances and their application
RICOH KK1 citations52
US3953433AApr 27, 1976
Sensitizer for use in electrophotographic light-sensitive material
RICOH KK0 citations37
CANON KK
12 patentsUS6668144B2Dec 23, 2003
Image forming apparatus and detecting device for detecting a type of recording sheet
CANON KK59 citations96
US8045868B2Oct 25, 2011
Recording material determination apparatus and image forming apparatus
CANON KK17 citations92
US6801727B2Oct 5, 2004
Recording-material type determination apparatus and method and image forming apparatus
CANON KK27 citations92
US6713983B2Mar 30, 2004
Servo-control apparatus for motor
CANON KK25 citations92
US6564025B2May 13, 2003
Image forming apparatus with recording material convey velocity control feature
CANON KK26 citations92
US6459225B1Oct 1, 2002
Servo-control apparatus for motor
CANON KK16 citations92
US6615005B2Sep 2, 2003
Motor driving apparatus, image forming apparatus and control method thereof
CANON KK14 citations84
US6804477B2Oct 12, 2004
Image forming apparatus and method for compensating for irregular recording material
CANON KK8 citations74
US6655774B2Dec 2, 2003
Image forming apparatus
CANON KK9 citations74
USRE41778ESep 28, 2010
Recording-material type determination apparatus and method and image forming apparatus
CANON KK1 citations63
US7339702B2Mar 4, 2008
Picture reading device for discriminating the type of recording medium and apparatus thereof
CANON KK3 citations63
US9052664B2Jun 9, 2015
Recording material determination apparatus and image forming apparatus
CANON KK3 citations62