Title: Recording medium and recording system

Abstract: Disclosed in this invention is a recording medium characterized by forming on the support a recording layer containing a metastable sensitive substance which is an intermediate product of a reaction between a first colorless or light-colored material containing the S atoms released by light irradiation and a second colorless or light-colored material which develops color as it is sulfurized by said S atoms.

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Inventors: Yamada, Noboru (Katano, JP)
Takenaga, Mutsuo (Katano, JP)
Nishiuchi, Kenichi (Moriguchi, JP)

Application Number: 06/383326
Filing Date: 1982-05-27
Publication_date: 1983-05-10
Assignee: MATSUSHITA ELECTRIC IND CO LTD (JP)

Primary Class(es): 430/541 430/542, 430/270.120, 430/616, 430/945, 430/540
Other Classes: G03C1/705; G03C1/00
US Patent Ref:

1962307	June, 1934	Hickman et al.	430/495	Photographically sensitive element
2369449	February, 1945	Fallesen	430/616	Print-out emulsions
2414839	January, 1947	Schoen	430/495	Light sensitized lead printing compounds and process of reproduction
2749253	June, 1956	Shoemaker et al.	430/616	Method of making a copy sheet and resultant article
3700452	October, 1972	Brinkman et al.	430/495
3907566	September, 1975	Inoue et al.	430/495	Photosensitive material containing inorganic compound coated metal particles and the use thereof in photographic development processes
4188214	February, 1980	Kido et al.	430/495	Recording material
4198237	April, 1980	Nahara et al.	430/495	Image forming materials and image forming process

Other Refs:
Primary Examiner: Louie Jr., Won H.
Assistant Examiner:
Attorney: Amster, Rothstein & Engelberg

Parent Case Data:

This is a continuation of application Ser. No. 179,081, filed Aug. 18, 1980, abandoned.