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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Walsh; Edward J.
Address:
Pittsford, NY
No. of patents:
5
Patents:




Patent Number Title Of Patent Date Issued
T998014 Thiazolyl couplers, coupler compositions and photographic elements suited to forming integral so September 2, 1980
Ballasted 1-hydroxy-2-naphthamide couplers which are N-substituted with a thiazolyl group that is in turn substituted with a phenyl group are disclosed as well as compositions and photographic elements containing these couplers in coupler solvents. Preferred couplers are those of the
5331360 Adaptor for overhead projector July 19, 1994
Apparatus for converting an overhead projector to use photographic slides includes a fresnel disk that shortens the illumination convergence point to match the focal length of a typical slide projector. The apparatus includes a base that covers the platen of the overhead projector to
4250251 Phenylsulfamoyl couplers, coupler compositions and photographic elements suited to forming integ February 10, 1981
Ballasted primary and secondary 3'-sulfamoyl-1-hydroxy-2-naphthanilide couplers are disclosed as well as compositions and photographic elements containing these couplers in coupler solvent particles. The coupler solvent particles are comprised of a combination of a coupler solvent and
4233389 Fluorinated 1-hydroxy-2-naphthamide coupler compositions and photographic elements suited to for November 11, 1980
Fluorinated 1-hydroxy-2-naphthamide couplers which are N-substituted with a lower alkylphenoxybutyl ballasting group are disclosed as well as compositions and photographic elements containing these couplers in coupler solvent particles. The coupler solvent particles are comprised of
4178183 Thiazolyl coupler compositions and photographic elements suited to forming integral sound tracks December 11, 1979
Ballasted 1-hydroxy-2-naphthamide couplers which are N-substituted with a thiazolyl group that is in turn substituted with a phenyl group are disclosed as well as compositions and photographic elements containing these couplers in coupler solvents. The coupler solvent particles are c


 
 
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