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Hironobu Kambayashi
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Isesaki-shi, JP
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last 30 patents
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Patent Grant
Ballpoint pen
Patent number
7,390,138
Issue date
Jun 24, 2008
Kabushiki Kaisha Pilot Corporation
Hironobu Kambayashi
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Patents Applications
last 30 patents
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Patent Application
Ballpoint pen
Publication number
20080101849
Publication date
May 1, 2008
Kabushiki Kaisha Pilot Corporation
Hironobu Kambayashi
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES