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US 6,447,179 B1Granted
Conveying roller for photosensitive material and method of producing the same
AssigneeFuji Photo Film Co., Ltd.
InventorsAkihiro Sanda, Takashi Kubo, Hideki Matsuzawa, Masayoshi Wada
Life of this patent
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Abstract
Continuous photo film includes a support of resin film having a back surface. A photosensitive layer of photographic emulsion is disposed on a surface of the support opposite to the back surface. A conveying roller conveys the continuous photo film. The conveying roller includes a roller body of metal. A hardness reinforcer layer is formed on a surface of the roller body by thermal spraying of ceramic or cermet, so that the roller body surface is prevented from being scratched or ground by the back surface of the film.
Claims7
A conveying roller and photosensitive material, wherein
- said photosensitive material comprises a support of resin film having a back surface, and a photosensitive layer of photographic emulsion disposed on a surface of said support opposite to said back surface;
- and
- wherein said conveying roller comprises:
- a roller body of metal;
- and
- a hardness reinforcer layer, selected from the group consisting of ceramic and cermet, formed on a surface of said roller body by thermal spraying of ceramic or cermet;
- and
- wherein said photosensitive material further includes a magnetic recording layer, formed on said back surface of said support, having a magnetic material and polishing agent which contacts with said hardness reinforcer layer.
5 more elements
Dependencies are inferred from the claim text.