Konica Corporation

Konishiroku Photo Industry Co., Ltd.

Toshiyuki Ikariya

Hideo Ishii

Osamu Shibazaki

Hideo Kobayashi

Yorikatsu Miyazawa

Yoshifumi Tsubaki

Kiyohiko Takahashi

Yasuhiro Oka

Shigeharu Koboshi

Masao Ishikawa

Eiichi Ueda

Yutaka Takei

Haruo Hakamada

Hajime Kobayashi

Yoshihiro Mochizuki

Norio Sakamoto

Masao Nakamura

Mitsuru Nagasaki

Shigekazu Sakai

Akira Yanagisawa

Nori Sakamoto

Paired light shielding flange members, each having: a hollow cylindrical boss section to be inserted into a core around which a photosensitive material has been wound, wherein a plurality of rip sections are formed on the exterior surface of the cylindrical boss section parallel with an axis of the boss section, and an interior surface portion of rib is grooved in parallel with the axis of the hollow cylindrically boss section, and a flange section, integrated concentrically with the hollow cylindrical boss section, to prevent the edge of photosensitive material from being exposed to light.

Light shielding flange

An apparatus for processing a photosensitive material includes a device to replenish a tablet of a solid processing agent into a processing tank in which a cross-section of the tablet is shaped in a circle. A container in which plural tablets are accommodated is detachably mounted on the device. The plural tablets are accommodated in such a manner that an outer circumference of each tablet is contacted with that of the others.

Photosensitive material processing apparatus

Cartridge for a photographic processor

In an apparatus for supplying a solid processing agent to a processing tank of a photographic material processing apparatus, there is provide a put-back mechanism for putting a solid processing agent back into an accommodation container when the accommodation container is moved from a operating position to a maintenance position on which the accommodation container can be replaced with a new one.

Device for replenishing solid processing agent used in a light-sensitive

Disclosed is a color photographic product having a patrone and a silver halide color photographic material rolled in said patrone, which said silver halide color photographic material comprises; a support having a thickness of 90 .mu.m or less, a backing layer on a first face of said support, a silver halide emulsion layer and a protective layer on a second face of said support, wherein each outermost layer on said first and second face has a coefficient of kinetic friction of 0.33 or less with respect to a velvet attached to an opening of said patrone and said opening has a gap of 0.5 to 2.9 mm. A silver halide photographic light-sensitive material according to this invention is improved in flaw resistance, image sharpness and film abrasion resistance.

Silver halide photographic product

A film cartridge container which can accommodate two film cartridges with short film tongues projecting straight from the cartridges. The film cartridge container has devices for fixing the film cartridges in the container and for attaching another film cartridge container by lid and bottom so that many containers can be stack for display.

Cartridge container

A magazine for a roll-type of photosensitive material having: an inner holder including a back plate made of paper; side plates made of paper connected with both sides of the back plate; supporting members each composed of plural accumulated disks and made of paper for supporting both ends of a spool around which the photosensitive material is wound; and a lightproof box made of paper to cover the inner holder. A slit through which the photosensitive material is pulled out is formed by a folded portion of the back plate and a lid portion of the lightproof box. A lightproofing material is provided to the folded portion of the back plate and the lid portion of the lightproof box at the slit. The supporting members are pivotally held by the side plates through a metallic or a synthetic resin shaft.

Magazine for roll-type photosensitive material

A spool for winding a photographic roll of film in a camera. The spool includes a shaft having a slit formed by opposed walls one of which has a protrusion extending into the slit and positioned between two ribs of the other wall. The protrusion is received in a perforation of the film tongue to wind the film when the spool is turned in a winding direction. When the film is unwound, the film tongue smoothly and reliably slips out of the slit as the perforation wall slides down an angled wall of the protrusion so that the film is released from the spool.

Spool for film and lens units

The invention provides a spool for winding a photographic roll film. The spool has a bar-shaped spool core which is slitted to lengthwise direction to form a slit for inserting a tongue-shaped end of the film having a through hole. On an inside wall of the slit, there is provided a catch claw capable of engaging the through hole. On another inside wall opposite to the above inside wall, there is provided a pressing rib for pressing and guiding the tongue-shaped end to the catch claw. A part of the outer surface of the spool core, adjoining to the inside wall of the slit in which is disposed the pressing rib, is shaped to serve as a film contact surface. The tip surface of the pressing rib and the film contact surface both jointly form a continuous shape of a circular arc.

Photographic film spool

A process for the continuous preparation of slides to be chemically analyzed comprises forming regularly a plurality of hollows on an advancing web material; putting a piece of film to be chemically analyzed in each of the hollows; sticking a long covering member having a plurality of apertures corresponding in their positions to the hollows on the web material onto the surface of the web material so that the apertures and the hollows on the web material are in registration; and cutting the circumference outside of each of the hollows. Also disclosed is a slide to be chemically analyzed which comprises a web material having a hollow in the central region thereof in which a film to be chemically analyzed is put, a covering member having an aperture on the surface thereof stuck to the web material; and downwardly extending flanges on a circumferential portion of the slide having heights substantially equal to that of the hollow to stabilize positioning of the slide.

Growing community of inventors

Hino, Japan

Toshiyuki Ikariya