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Thermal gradation printing apparatus
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Patent number 5,808,653
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Issue date Sep 15, 1998
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Matsushita Electric Industrial Co., Ltd.
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Yasuki Matsumoto
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Thermal gradation printing apparatus
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Patent number 5,644,351
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Issue date Jul 1, 1997
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Matsushita Electric Industrial Co., Ltd.
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Yasuki Matsumoto
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Tracking control apparatus
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Patent number 5,444,682
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Issue date Aug 22, 1995
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Matsushita Electric Industrial Co., Ltd.
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Shinichi Yamada
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G11 - INFORMATION STORAGE
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Thermal head drive unit
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Patent number 5,349,373
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Issue date Sep 20, 1994
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Matsushita Electric Industrial Co., Ltd.
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Yasuki Matsumoto
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Color image forming apparatus
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Patent number 5,315,381
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Issue date May 24, 1994
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Matsushita Electric Industrial Co., Ltd.
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Haruo Yamashita
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Image contour enhancing device
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Patent number 5,237,625
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Issue date Aug 17, 1993
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Matsushita Electric Industrial Co., Ltd.
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Haruo Yamashita
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H04 - ELECTRIC COMMUNICATION TECHNIQUE