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Yasuyuki Sugimoto
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Susono-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Oil-based ball-point pen refill, oil-based ball-point pen, and oil-...
Patent number
10,087,337
Issue date
Oct 2, 2018
Kabushiki Kaisha Pilot Corporation
Akihiro Shiobara
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Water based ink composition for rollerball pen
Patent number
7,497,902
Issue date
Mar 3, 2009
Kabushiki Kaisha Pilot Corporation
Yasuyuki Sugimoto
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Ballpoint pen containing an aqueous ink composition
Patent number
5,609,432
Issue date
Mar 11, 1997
Kabushiki Kaisha Pilot
Takeyuki Yamamoto
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Grant
Water resistant ink compositions and process for preparation
Patent number
5,205,862
Issue date
Apr 27, 1993
Kabushiki Kaisha Pilot
Hiroshi Kiyomoto
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
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Patent Application
OIL-BASED BALL-POINT PEN REFILL, OIL-BASED BALL-POINT PEN, AND OIL-...
Publication number
20160177114
Publication date
Jun 23, 2016
Kabushiki Kaisha Pilot Corporation
Akihiro SHIOBARA
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information
Patent Application
Water based ink composition for rollerball pen
Publication number
20070204761
Publication date
Sep 6, 2007
Kabushiki Kaisha Pilot Corporation
Yasuyuki Sugimoto
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...