Inventor
SEKINE AKIO
JP22 patents
⚠️ This page may combine multiple inventors who share the name “SEKINE AKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JUJO PAPER CO LTD
21 patentsUS5710094AJan 20, 1998
Reversible multi-color thermal recording medium
JUJO PAPER CO LTD135 citations98
US5434119AJul 18, 1995
Transparent recording medium
JUJO PAPER CO LTD22 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
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
US5061536AOct 29, 1991
Optical recording medium
JUJO PAPER CO LTD10 citations73
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
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
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