Eugene Zador, Wesley R Kaczmarek, Sitaramaiah Ravipati: Coated abrasives with rapidly curable adhesives and controllable curvature. Norton Company, Frank S Chow, Norvell E Wisdom, February 10, 1987: US04642126 (233 worldwide citation)

Previous coated abrasives with adhesives suited to rapid, UV light initiated cure often had intractable curl problems. Therefore, such coated abrasives have been unsuited to precision finishing of workpieces with strict flatness or other curvature requirements, such as read-write heads for magnetic ...

Sitaramaiah Ravipati, Eugene Zador, Wesley R Kaczmarek, Ernest A Coleman, David Rostoker: Patterned coated abrasive for fine surface finishing. Norton Company, Arthur A Losielle, May 14, 1991: US05014468 (186 worldwide citation)

Coated abrasive material for fine finishing applications including second fining ophthalmic application, having patterned surface coating of abrasive grains dispersed in radiation-cured adhesive binder. The patterned surface coating is defined by a plurality of formations of such abrasive/binder eac ...

Wesley R Kaczmarek, Eugene Zador, Sitaramaiah Ravipati: Plural layered coated abrasive. Norton Company, Frank S Chow, Norvell E Wisdom, February 24, 1987: US04644703 (78 worldwide citation)

A coated abrasive which is advantageous for certain applications has at least two distinct layers of abrasive grits: a coarse outer layer and a finer inner layer. The median particle size of the grits in the outer layer is at least 150% of that of the inner layer grits. The grits may be adhered to t ...

Eugene Zador, Shyiguei Hsu, Wesley R Kaczmarek, Sitaramaiah Ravipati, Stanley Supkis, Richard H Vogel: Single step, radiation curable ophthalmic fining pad. Norton Company, Arthur A Loiselle, April 30, 1991: US05011513 (71 worldwide citation)

A single step fining pad for use in a ophthalmic applications having radiation cured maker and size coats of different hardnesses.