Jae-Hyun Hong

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Gyunggi-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Grinding tool
- Patent number 9,925,645
- Issue date Mar 27, 2018
- EHWA DIAMOND INDUSTRIAL CO., LTD.
- Young-Choul Song
- B24 - GRINDING POLISHING
Information Patent Grant
Brazing bond type diamond tool with excellent cuttability and metho...
- Patent number 9,694,512
- Issue date Jul 4, 2017
- EHWA Diamond Industrial Co., Ltd.
- Jae-Hyun Hong
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Drill bit
- Patent number 8,801,342
- Issue date Aug 12, 2014
- EHWA Diamond Industrial Co., Ltd.
- Jae-Hyun Hong
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
GRINDING TOOL
- Publication number 20160221155
- Publication date Aug 4, 2016
- EHWA DIAMOND INDUSTRIAL CO., LTD.
- Young-Choul SONG
- B24 - GRINDING POLISHING
Information Patent Application
BRAZING BOND TYPE DIAMOND TOOL WITH EXCELLENT CUTTABILITY AND METHO...
- Publication number 20150336291
- Publication date Nov 26, 2015
- Jae-Hyun HONG
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
BRAZING BOND TYPE DIAMOND TOOL WITH EXCELLENT CUTTABILITY AND METHO...
- Publication number 20130059510
- Publication date Mar 7, 2013
- EHWA DIAMOND INDUSTRIAL CO., LTD.
- Jae-Hyun HONG
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
DRILL BIT
- Publication number 20110033253
- Publication date Feb 10, 2011
- EHWA DIAMOND INDUSTRIAL CO., LTD.
- Jae-Hyun Hong
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR