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Yasuo Shigemitsu

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Publication

Featured researches published by Yasuo Shigemitsu.

New Journal of Chemistry | 1998

NMR spectroscopic study of the formation of borate esters ascorbic acid and isoascorbic acid

Naoki Obi; Masatoshi Katayama; Junko Sano; Yasuhiko Kojima; Yasuo Shigemitsu; Kanako Takada

The favorable positions for borate ester formation of ascorbic acid are 3,5-OH groups which yields a 6-membered ring, even though 13B NMR chemical shifts of the borate ester of ascorbic acid suggested the existence of a 5-membered ring.

Archive | 1992

Developer for light-sensitive material

Yasuhiko Kojima; Yasuo Shigemitsu

Archive | 1991

SUPERHIGH CONTRAST NEGATIVE IMAGE FORMING PROCESS

Yasuhiko Kojima; Naoki Obi; Yasuo Shigemitsu

Archive | 1991

High-contrast image forming process

Yasuhiko Kojima; Naoki Obi; Yasuo Shigemitsu; Kiyoshi Suematsu

Archive | 1991

Silver halide photographic material and image forming process using the same

Yosuhiko Kojima; Naoki Obi; Yasuo Shigemitsu; Kiyoshi Suematsu

Archive | 1993

Direct positive silver halide photographic material and method for forming high contrast positive image using the same

Naoki Obi; Kiyoshi Suematsu; Yasuhiko Kojima; Masatoshi Katayama; Yasuo Shigemitsu

Archive | 1987

Silver halide photographic lith material

Tadao Shoji; Yonosuke Tsuka; Naoki Obi; Yasuhiko Kojima; Yasuo Shigemitsu

Archive | 1995

Verfahren zur Herstellung von Negativbildern mit ultrahohem Kontrast und photographisches Silberhalogenidmaterial und Entwickler dafür A process for producing negative images having ultrahigh contrast and silver halide photographic material and developer for

Kiyoshi Suematsu; Hiroaki Muratake; Haruhiko Kaji; Naoki Obi; Yasuhiko Kojima; Yasuo Shigemitsu

Archive | 1995

A process for producing negative images having ultrahigh contrast and silver halide photographic material and developer therefor

Kiyoshi Suematsu; Hiroaki Muratake; Haruhiko Kaji; Naoki Obi; Yasuhiko Kojima; Yasuo Shigemitsu

Archive | 1995

Procédé de formation d'images négatives à très haut contraste et matériau photographique à l'halogénure d'argent et développateur utilisé pour celui-ci

Haruhiko Kaji; Yasuhiko Kojima; Hiroaki Muratake; Naoki Obi; Yasuo Shigemitsu; Kiyoshi Suematsu

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