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Mukgye-ri, Gangwon-do, KR
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Patents Grants
last 30 patents
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Patent Grant
Ball pen tip manufacturing machines, ball pen tips, and ball pens
Patent number
11,660,905
Issue date
May 30, 2023
Kotobuki & Co. Ltd.
Byun Young Jae
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Methods for manufacturing ball pen tips, ball pen tip manufacturing...
Patent number
10,836,204
Issue date
Nov 17, 2020
KOTOBUKI & CO. LTD.
Byun Young Jae
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Patent Grant
Ink composition for oil-based ballpoint pen
Patent number
8,604,100
Issue date
Dec 10, 2013
Suhan Corporation
Doo Young Chung
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Patents Applications
last 30 patents
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Patent Application
INK COMPOSITION FOR WRITING INSTRUMENT AND WRITING INSTRUMENT HAVIN...
Publication number
20210079244
Publication date
Mar 18, 2021
SUHAN CORPORATION
Jung Eun KIM
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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Patent Application
METHODS FOR MANUFACTURING BALL PEN TIPS, BALL PEN TIP MANUFACTURING...
Publication number
20210070094
Publication date
Mar 11, 2021
Kotobuki & Co. Ltd.
Byun Young Jae
B26 - HAND CUTTING TOOLS CUTTING SEVERING