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Cheol-Nam Yoon
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Ansong-shi, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Nozzle for spraying sublimable solid particles entrained in gas for...
Patent number
7,762,869
Issue date
Jul 27, 2010
K.C. Tech Co., Ltd.
Cheol-Nam Yoon
B24 - GRINDING POLISHING
Information
Patent Grant
Nozzle for spraying sublimable solid particles entrained in gas for...
Patent number
7,442,112
Issue date
Oct 28, 2008
K.C. Tech Co., Ltd.
Cheol-Nam Yoon
B24 - GRINDING POLISHING
Information
Patent Grant
Apparatus for cleaning the edges of wafers
Patent number
7,270,136
Issue date
Sep 18, 2007
K. C. Tech Co., Ltd.
Se-Jong Ko
B24 - GRINDING POLISHING
Information
Patent Grant
Nozzle for injecting sublimable solid particles entrained in gas fo...
Patent number
7,008,306
Issue date
Mar 7, 2006
K.C. Tech Co., Ltd.
Cheol-Nam Yoon
B24 - GRINDING POLISHING
Patents Applications
last 30 patents
Information
Patent Application
NOZZLE FOR SPRAYING SUBLIMABLE SOLID PARTICLES ENTRAINED IN GAS FOR...
Publication number
20090039178
Publication date
Feb 12, 2009
K.C. TECH CO., LTD.
Cheol-Nam Yoon
B24 - GRINDING POLISHING
Information
Patent Application
Nozzle for injecting sublimable solid particles entrained in gas fo...
Publication number
20050277370
Publication date
Dec 15, 2005
Cheol-Nam Yoon
B24 - GRINDING POLISHING
Information
Patent Application
Nozzle for spraying sublimable solid particles entrained in gas for...
Publication number
20050266777
Publication date
Dec 1, 2005
K.C. TECH CO., LTD.
Cheol-Nam Yoon
B24 - GRINDING POLISHING