Inventor
IWAKURA KEN
JP80 patents
⚠️ This page may combine multiple inventors who share the name “IWAKURA KEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI PHOTO FILM CO LTD
49 patentsUS4390616AJun 28, 1983
Image recording members
FUJI PHOTO FILM CO LTD91 citations96
US4436920AMar 13, 1984
Image recording members
FUJI PHOTO FILM CO LTD34 citations93
US5663212ASep 2, 1997
Light-sensitive resin composition
FUJI PHOTO FILM CO LTD41 citations92
US5091280AFeb 25, 1992
Light- and heat-sensitive recording material
FUJI PHOTO FILM CO LTD40 citations92
US4999333AMar 12, 1991
Heat sensitive recording material
FUJI PHOTO FILM CO LTD33 citations92
US5286703AFeb 15, 1994
Heat-sensitive recording material
FUJI PHOTO FILM CO LTD37 citations90
US4888321ADec 19, 1989
Heat-sensitive recording materials
FUJI PHOTO FILM CO LTD22 citations82
US4803192AFeb 7, 1989
Recording material
FUJI PHOTO FILM CO LTD18 citations82
US4728633AMar 1, 1988
Recording material
FUJI PHOTO FILM CO LTD22 citations82
US4585483AApr 29, 1986
Recording materials
FUJI PHOTO FILM CO LTD22 citations82
US4446209AMay 1, 1984
Heat-sensitive recording materials
FUJI PHOTO FILM CO LTD19 citations82
US5464804ANov 7, 1995
Thermal recording material
FUJI PHOTO FILM CO LTD10 citations74
US5260253ANov 9, 1993
Heat-sensitive recording material
FUJI PHOTO FILM CO LTD7 citations74
US5202304AApr 13, 1993
Recording medium
FUJI PHOTO FILM CO LTD10 citations74
US4985391AJan 15, 1991
Heat-sensitive recording material
FUJI PHOTO FILM CO LTD6 citations74
US4981835AJan 1, 1991
Recording material
FUJI PHOTO FILM CO LTD10 citations74
US4923781AMay 8, 1990
Photopolymerizable composition containing 3,6-diaminofluoran compounds
FUJI PHOTO FILM CO LTD13 citations74
US4918047AApr 17, 1990
Heat-sensitive recording material
FUJI PHOTO FILM CO LTD15 citations74
US4861748AAug 29, 1989
Recording material
FUJI PHOTO FILM CO LTD8 citations74
US4855278AAug 8, 1989
Heat-sensitive recording material
FUJI PHOTO FILM CO LTD18 citations74
US4855282AAug 8, 1989
Recording material and method for producing the same
FUJI PHOTO FILM CO LTD16 citations74
US4839332AJun 13, 1989
Heat-sensitive recording material
FUJI PHOTO FILM CO LTD10 citations74
US4835133AMay 30, 1989
Recording material
FUJI PHOTO FILM CO LTD9 citations74
US4771034ASep 13, 1988
Recording materials
FUJI PHOTO FILM CO LTD7 citations74
US4727056AFeb 23, 1988
Recording material
FUJI PHOTO FILM CO LTD7 citations74
US4644377AFeb 17, 1987
Fluoran derivatives and recording material using the same
FUJI PHOTO FILM CO LTD6 citations74
US4583104AApr 15, 1986
Recording materials
FUJI PHOTO FILM CO LTD10 citations74
US4535348AAug 13, 1985
Fluoran derivatives and recording material using same
FUJI PHOTO FILM CO LTD7 citations74
US4480052AOct 30, 1984
Heat-sensitive recording materials
FUJI PHOTO FILM CO LTD12 citations74
US4433156AFeb 21, 1984
Process for preparing fluoran derivatives
FUJI PHOTO FILM CO LTD10 citations74
US5051333ASep 24, 1991
Optical image-recording material
FUJI PHOTO FILM CO LTD12 citations73
US4876233AOct 24, 1989
Recording material
FUJI PHOTO FILM CO LTD12 citations73
US5679494AOct 21, 1997
Heat-sensitive recording material comprising a diazonium salt, a coupler and a benzotriazole compound
FUJI PHOTO FILM CO LTD11 citations72
US4920091AApr 24, 1990
Recording material
FUJI PHOTO FILM CO LTD7 citations72
US5480765AJan 2, 1996
Recording material
FUJI PHOTO FILM CO LTD12 citations71
US5424164AJun 13, 1995
Image forming method
FUJI PHOTO FILM CO LTD6 citations63
US5362874ANov 8, 1994
Light-sensitive bistrihalomethyl-s-triazine compounds
FUJI PHOTO FILM CO LTD2 citations63
US5334749AAug 2, 1994
Polymerizable phenol compound
FUJI PHOTO FILM CO LTD2 citations63
US5288688AFeb 22, 1994
Thermal recording material
FUJI PHOTO FILM CO LTD4 citations63
US4882311ANov 21, 1989
Heat-sensitive recording material
FUJI PHOTO FILM CO LTD5 citations63
US4847236AJul 11, 1989
Recording material
FUJI PHOTO FILM CO LTD3 citations63
US4833118AMay 23, 1989
Heat-sensitive recording material
FUJI PHOTO FILM CO LTD3 citations63
US4812440AMar 14, 1989
Recording material containing leuco dye
FUJI PHOTO FILM CO LTD2 citations63
US4800193AJan 24, 1989
Recording material
FUJI PHOTO FILM CO LTD3 citations63
US4792542ADec 20, 1988
Recording material
FUJI PHOTO FILM CO LTD2 citations63
US4791095ADec 13, 1988
Heat-sensitive recording material
FUJI PHOTO FILM CO LTD3 citations63
US4721702AJan 26, 1988
Pressure-sensitive recording material
FUJI PHOTO FILM CO LTD4 citations63
US4707464ANov 17, 1987
Recording material
FUJI PHOTO FILM CO LTD4 citations63
US4701565AOct 20, 1987
Process for preparation of ethers
FUJI PHOTO FILM CO LTD4 citations63
PS4 LUXCO SARL
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