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Masaaki Ona
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Kawagoe, JP
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last 30 patents
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Patent Grant
Opening/closing structure for a flip attached to a portable phone
Patent number
6,985,759
Issue date
Jan 10, 2006
Kabushiki Kaisha Strawberry Corporation
Masaaki Ona
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Hinge structure for collapsible portable phone
Patent number
6,633,643
Issue date
Oct 14, 2003
Kabushiki Kaisha Strawberry Corporation
Masaaki Ona
H04 - ELECTRIC COMMUNICATION TECHNIQUE