Inventor
NAGAI TOMOAKI
JP44 patents
⚠️ This page may combine multiple inventors who share the name “NAGAI TOMOAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JUJO PAPER CO LTD
41 patentsUS5710094AJan 20, 1998
Reversible multi-color thermal recording medium
JUJO PAPER CO LTD135 citations98
US5354514AOct 11, 1994
Near infrared absorbing composition and material and product containing same
JUJO PAPER CO LTD25 citations93
US5470816ANov 28, 1995
Thermal recording sheet
JUJO PAPER CO LTD26 citations92
US5434119AJul 18, 1995
Transparent recording medium
JUJO PAPER CO LTD22 citations92
US5236633AAug 17, 1993
Plate and sheet comprising near infrared absorbing composition
JUJO PAPER CO LTD25 citations92
US5200947AApr 6, 1993
Optical recording medium, optical recording method, and optical recording device used in method
JUJO PAPER CO LTD21 citations92
US5178990AJan 12, 1993
Method of identifying output, main wavelength, etc., of light
JUJO PAPER CO LTD31 citations92
US5100711AMar 31, 1992
Optical recording medium optical recording method, and optical recording device used in method
JUJO PAPER CO LTD42 citations92
US4910185AMar 20, 1990
Heat-sensitive recording material
JUJO PAPER CO LTD32 citations92
US4729983AMar 8, 1988
Heat-sensitive recording material
JUJO PAPER CO LTD27 citations92
US6093678AJul 25, 2000
Spontaneously color changing type thermal sensitive recording medium
JUJO PAPER CO LTD26 citations91
US5811369ASep 22, 1998
Thermal recording medium
JUJO PAPER CO LTD17 citations84
US5234797AAug 10, 1993
Optical recording medium
JUJO PAPER CO LTD18 citations82
US5665675ASep 9, 1997
Aminobenzenesulfonamide derivative and recording medium using the same
JUJO PAPER CO LTD17 citations74
US5482913AJan 9, 1996
Recording sheet
JUJO PAPER CO LTD8 citations74
US5075146ADec 24, 1991
Optical recording medium
JUJO PAPER CO LTD10 citations74
US4868151ASep 19, 1989
Heat-sensitive recording material
JUJO PAPER CO LTD13 citations74
US4861749AAug 29, 1989
Heat-sensitive recording material
JUJO PAPER CO LTD9 citations74
US4853361AAug 1, 1989
Heat- and light-sensitive recording material
JUJO PAPER CO LTD12 citations74
US4853362AAug 1, 1989
Heat-sensitive recording sheet
JUJO PAPER CO LTD18 citations74
US4849396AJul 18, 1989
Heat-sensitive recording material
JUJO PAPER CO LTD8 citations74
US5393443AFeb 28, 1995
Hard-coating, heat-absorbing composition and heat-shielding substance
JUJO PAPER CO LTD8 citations73
US5061536AOct 29, 1991
Optical recording medium
JUJO PAPER CO LTD10 citations73
US5792863AAug 11, 1998
Acridine derivatives and metal complexes thereof used for transparent recording medium or optical recording medium
JUJO PAPER CO LTD5 citations71
US5661100AAug 26, 1997
Urea (thiourea) derivative and thermal recording sheet using the same
JUJO PAPER CO LTD7 citations71
US5811368ASep 22, 1998
Thermal sensitive recording medium
JUJO PAPER CO LTD9 citations70
US5733843AMar 31, 1998
Thermal sensitive recording sheet
JUJO PAPER CO LTD6 citations63
US4853363AAug 1, 1989
Heat-sensitive recording material
JUJO PAPER CO LTD5 citations63
US4721701AJan 26, 1988
Thermosensitive recording sheet
JUJO PAPER CO LTD2 citations63
US6258747B1Jul 10, 2001
Thermally sensitive recording medium
JUJO PAPER CO LTD3 citations62
US5707778AJan 13, 1998
Optical recording medium
JUJO PAPER CO LTD6 citations62
US5494882AFeb 27, 1996
Thermal recording material
JUJO PAPER CO LTD3 citations62
US5391666AFeb 21, 1995
Light-responsive plate containing the metal salt of a phthalic acid derivative
JUJO PAPER CO LTD4 citations62
US5273800ADec 28, 1993
Optical recording medium
JUJO PAPER CO LTD5 citations62
US5202450AApr 13, 1993
Phthalic acid derivative metal salt and shading and light-responsive plate containing the metal salt
JUJO PAPER CO LTD3 citations62
US5919928AJul 6, 1999
Phenanthridine derivatives and metal complexes thereof used for transparent recording medium or optical recording medium
JUJO PAPER CO LTD3 citations60
US5892042AApr 6, 1999
Acridine derivative metal complexes used for transparent recording medium or optical recording medium
JUJO PAPER CO LTD1 citations60
US6284706B1Sep 4, 2001
Thermally sensitive recording medium
JUJO PAPER CO LTD0 citations52
US5369199ANov 29, 1994
Light-responsive plate containing metal salt of a phthalic acid derivative
JUJO PAPER CO LTD0 citations52
US5753586AMay 19, 1998
Thermal sensitive recording sheet
JUJO PAPER CO LTD0 citations41
US6303540B1Oct 16, 2001
Thermally sensitive recording medium
JUJO PAPER CO LTD0 citations40