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Nobuaki Shimane
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Tokyo, JP
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last 30 patents
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Patent Grant
Writing implement
Patent number
8,678,691
Issue date
Mar 25, 2014
Mitsubishi Pencil Co., Ltd.
Masayoshi Kiritake
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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last 30 patents
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Patent Application
WRITING IMPLEMENT
Publication number
20100284723
Publication date
Nov 11, 2010
Masayoshi Kiritake
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES