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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Okai; Sakuo
Address:
Carlsbad, CA
No. of patents:
4
Patents:












Patent Number Title Of Patent Date Issued
4289071 Shallow relief non-bottoming photopolymer printing plate September 15, 1981
A shallow relief non-bottoming printing plate is disclosed having a polymerized layer of less than about 0.020 inch and which includes a plurality of dispersed particles sufficient to create small protuberances in non-image or background areas to prevent bottoming. Photopolymerizable
4283481 Element having phosphine activated photosensitive compositions therein August 11, 1981
A photopolymerizable composition and photosensitive elements produced therefrom are disclosed. The photopolymerizable composition includes: (a) a monomer component, (b) a polymer component, (c) a photopolymerization initiator, and (d) an activator.The monomer component contains at least
4233391 Water developable photopolymerizable compositions containing phosphine activators and saponified November 11, 1980
A photopolymerizable composition and photosensitive elements produced therefrom are disclosed. The photopolymerizable composition includes: (a) a monomer component, (b) a polymer component, (c) a photopolymerization initiator, and (d) an activator.The monomer component contains at least
4164422 Water developable, photopolymer printing plates having ink-repulsive non-image areas August 14, 1979
Letterpress and offset photopolymer printing plates are disclosed having relatively thin water developable photopolymer layers, which, after being developed, have ink-repulsive, non-image areas. Adhesive layers are provided in the disclosed printing plates that are interposed between an










 
 
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