Abstract: A method for producing a photomask, by exposing and development-processing a photographic material including a transparent support having thereon a masking layer and a silver halide emulsion layer to thereby form a silver image, etch-bleaching the silver halide emulsion layer to thereby remove the silver image areas, baking the remaining non-silver image areas to thereby decompose the binder contained therein, subjecting the coated support to etching to thereby remove the masking layer located at the areas corresponding to the silver image, and removing the decomposed binder to thereby uncover the masking layer at the areas corresponding to the non-silver image areas.

Abstract: A method for developing continuous tone images is disclosed involving the use of a development electrode and a backing electrode. The backing electrode is made of a conductive material and has projections on its surface which are fabricated to penetrate the substrate of a photoconductive imaging member. In this manner, sufficient electrical contact is made between the development electrode and the substrate to insure proper development.

Abstract: Images are formed by transporting a recording surface bearing an electrostatic latent image adjacent to a spaced parallel surface of a development electrode and supplying a liquid developer between the recording surface and parallel surface of the development electrode at substantially the same velocity as the velocity of the recording surface.

Abstract: A method for forming micropatterns comprising, superposing a transparent raised image formed on a transparent substrate on a photosensitive layer of a photographic material or forming a transparent raised image on the photosensitive layer of the photographic material, uniformly exposing the photosensitive layer through the transparent raised image to light to which the photosensitive layer is sensitive so that the light intensity at edges of the transparent image is non-uniform, and developing the photosensitive layer to form a micropattern corresponding to the outlines of the transparent raised image.

Abstract: A apparatus for developing electrostatic latent images is given whereby there is provided a means for bringing pigmented particles into contact with a coarse surface, means for collecting said pigmented particles, means for supplying an insulating liquid to the pigmented particles, and means to contact said pigmented particles in insulating liquid to the surface of an electrostatic latent image.

Abstract: A toner image is transferred from a toner substrate to a transfer sheet by bringing the toner substrate and the transfer sheet into face to face contact and applying a vibration thereto, while simultaneously applying pressure and/or an electrical field across the substrate and transfer sheet.