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Electroless gold plating solution
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Patent number 4,880,464
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Issue date Nov 14, 1989
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Hitachi, Ltd.
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Jiro Ushio
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Electroless gold plating solution
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Patent number 4,804,559
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Issue date Feb 14, 1989
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Hitachi, Ltd.
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Jiro Ushio
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Semiconductor device
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Patent number 4,736,012
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Issue date Apr 5, 1988
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Hitachi, Ltd.
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Fusaji Shoji
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H01 - BASIC ELECTRIC ELEMENTS
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Optical switch
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Patent number 4,715,673
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Issue date Dec 29, 1987
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Hitachi, Ltd.
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Takanobu Noro
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G02 - OPTICS
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Photosensitive resin composition
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Patent number 4,530,746
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Issue date Jul 23, 1985
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Hitachi, Ltd.
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Kazufumi Azuma
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Heat-resistant silicone block polymer
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Patent number 4,513,132
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Issue date Apr 23, 1985
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Hitachi, Ltd.
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Fusaji Shoji
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Process for forming thin film
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Patent number 4,495,218
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Issue date Jan 22, 1985
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Hitachi, Ltd.
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Kazufumi Azuma
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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