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Yasuyuki Iwase
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Fujioka, JP
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last 30 patents
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Patent Grant
Applicator
Patent number
5,957,609
Issue date
Sep 28, 1999
Mitsubishi Pencil Kabushiki Kaisha
Masaaki Morita
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Valve unit for writing instruments or liquid applicators
Patent number
5,067,838
Issue date
Nov 26, 1991
Mitsubishi Pencil Co., Ltd.
Yasuyuki Iwase
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Fixing member for retaining liquid-application member of liquid app...
Patent number
4,833,751
Issue date
May 30, 1989
Mitsubishi Pencil Co., Ltd.
Yasuyuki Iwase
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Liquid aerosol applicator with sponge buffer to brush
Patent number
4,789,261
Issue date
Dec 6, 1988
Mitsubishi Pencil Co., Ltd.
Yasuyuki Iwase
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES