Inventor
TAKEI YOSHIAKI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “TAKEI YOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KONISHIROKU PHOTO IND
26 patentsUS4415640ANov 15, 1983
Electrophotographic element with fluorenylidene hydrazone compounds
KONISHIROKU PHOTO IND73 citations96
US4278746AJul 14, 1981
Photosensitive elements for electrophotography
KONISHIROKU PHOTO IND168 citations96
US4637971AJan 20, 1987
Photoreceptor having polycarbonate layers and process for the preparation thereof
KONISHIROKU PHOTO IND34 citations90
US5679488AOct 21, 1997
Electrophotography photoreceptor
KONISHIROKU PHOTO IND20 citations89
US4302521ANov 24, 1981
Photosensitive element for electrophotography
KONISHIROKU PHOTO IND31 citations89
US4477549AOct 16, 1984
Photoreceptor for electrophotography, method of forming an electrostatic latent image, and electrophotographic process
KONISHIROKU PHOTO IND22 citations82
US4415641ANov 15, 1983
Electrophotographic light-sensitive element
KONISHIROKU PHOTO IND22 citations82
US5075189ADec 24, 1991
Electrophotographic photoreceptor comprising an undercoat layer containing a polyamide copolymer
KONISHIROKU PHOTO IND20 citations78
US4931372AJun 5, 1990
Polycarbonate-containing photoreceptors containing a hindered phenol compound
KONISHIROKU PHOTO IND16 citations74
US4599287AJul 8, 1986
Positive charging photorecptor
KONISHIROKU PHOTO IND15 citations74
US4540651ASep 10, 1985
Electrophotographic photosensitive member
KONISHIROKU PHOTO IND17 citations74
US4450218AMay 22, 1984
Photoconductive receptor for an electrophotography
KONISHIROKU PHOTO IND18 citations74
US5434027AJul 18, 1995
Photorecptor for electrophotography and image forming method
KONISHIROKU PHOTO IND14 citations73
US5349426ASep 20, 1994
Toner guide roller for image-forming process and apparatus applied therewith
KONISHIROKU PHOTO IND8 citations72
US4952470AAug 28, 1990
Electrophotographic photosensitive member
KONISHIROKU PHOTO IND15 citations72
US4888262ADec 19, 1989
Image forming method
KONISHIROKU PHOTO IND13 citations72
US4431722AFeb 14, 1984
Photosensitive element for electrophotography produced by sublimation
KONISHIROKU PHOTO IND11 citations72
US4424266AJan 3, 1984
Layered electrophotographic photosensitive element having hydrazone charge transport material
KONISHIROKU PHOTO IND8 citations71
US4591542AMay 27, 1986
Light-sensitive member and preparation thereof for use in electrophotography
KONISHIROKU PHOTO IND2 citations63
US5863689AJan 26, 1999
Electrophotographic photoreceptor
KONISHIROKU PHOTO IND6 citations62
US5403691AApr 4, 1995
Method for preparing an electrophotographic photoreceptor
KONISHIROKU PHOTO IND5 citations62
US4835080AMay 30, 1989
Photoreceptor having photosensitive layer comprising a brominated anthanthrone of specified x-ray spectrum
KONISHIROKU PHOTO IND3 citations62
US4410615AOct 18, 1983
Layered electrophotographic photosensitive element having hydrazone charge transport layer
KONISHIROKU PHOTO IND5 citations62
US4232104ANov 4, 1980
Substrates for use in screen photosensitive element
KONISHIROKU PHOTO IND3 citations60
US4218124AAug 19, 1980
Photo-sensitive screen for producing electrostatic latent image
KONISHIROKU PHOTO IND1 citations50
US5134050AJul 28, 1992
Photoreceptor comprising the combined use of a quinone and azo compound as charge generating materials
KONISHIROKU PHOTO IND1 citations48