Development of the research of gelatin in Japan since 1939 are described in out line. It was originated and stimulated by the demand of the photographic industry in Japan to get rid of unstable supply of imported photographic gelatin. List of reports with titles, names of authors and their sources are given in classified form as these:
1. Reports about the preparation or the manufacture of gelatin (8),
2. Those about constituents of gelatin (3),
3. Those about physical properties of gelatin (21),
4. Those about the reactivity of gelatin or the interaction between gelatin and other substances (30),
5. Those about actions of gelatin in photographic emulsion making (7),
6. Those about impurities in gelatin (28),
7. Those about actions of gelatin played during processing of the sensitive layers (8).(Figures in brackets are number of references.)
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