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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Simons; Michael J.
Address:
Eastcote, GB2
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
5389503 Photographic elements for producing blue, green, and red exposure records of the same hue February 14, 1995
A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a seq
5350651 Methods for the retrieval and differentiation of blue, green and red exposure records of the sam September 27, 1994
A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a seq
4255510 Development restrainer precursors for photographic elements March 10, 1981
Photographic elements, assemblages and processes for color diffusion transfer photography are described wherein certain azole compounds having at least two nitrogen atoms are employed as development restrainer precursors. Preferred azole compounds include benzotriazoles, triazoles, t
4142901 Photographic materials comprising azo sensitizing dyes March 6, 1979
Certain azo compounds are useful as spectral sensitizing dyes in photographic silver halide materials, and particularly in photothermographic materials. These azo compounds comprise moieties capable of forming substantially insoluble silver salts thereby substantially improving sensi










 
 
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