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Magnetic toner
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Patent number 5,532,095
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Issue date Jul 2, 1996
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Hitachi Metals, Ltd.
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Masumi Asanae
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Method for recording images
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Patent number 5,153,616
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Issue date Oct 6, 1992
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Hitachi Metals, Ltd.
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Masumi Asanae
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Reverse development method
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Patent number 4,912,003
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Issue date Mar 27, 1990
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Hitachi Metals, Ltd.
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Masumi Asanae
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Image recording method
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Patent number 4,873,540
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Issue date Oct 10, 1989
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Hitachi Metals, Ltd.
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Masumi Asanae
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Electrophotographic developer
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Patent number 4,518,673
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Issue date May 21, 1985
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Hitachi Metals, Ltd.
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Koji Noguchi
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY