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Metal pattern forming method
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Patent number 7,524,432
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Issue date Apr 28, 2009
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Seiko Epson Corporation
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Shinya Momose
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Guided punching apparatus
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Patent number 7,363,795
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Issue date Apr 29, 2008
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Seiko Epson Corporation
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Fujio Akahane
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Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Forging work method
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Patent number 7,127,929
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Issue date Oct 31, 2006
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Seiko Epson Corporation
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Fujio Akahane
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B24 - GRINDING POLISHING
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Punch for forging a liquid ejection head
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Patent number 7,040,134
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Issue date May 9, 2006
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Seiko Epson Corporation
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Fujio Akahane
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Forging punch
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Patent number 6,997,027
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Issue date Feb 14, 2006
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Seiko Epson Corporation
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Fujio Akahane
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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