Hae Seok JI

Follow

Person

Nam-ku, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Method of preparing perfluoroalkadiene
- Patent number 7,504,547
- Issue date Mar 17, 2009
- Foosung Co., Ltd.
- Hae-Seok Ji
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Dry-etching gas for semiconductor process and preparation method th...
- Patent number 7,319,174
- Issue date Jan 15, 2008
- Ulsan Chemical Co., Ltd.
- Hae Seok Ji
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of producing difluoromethane
- Patent number 6,841,705
- Issue date Jan 11, 2005
- Ulsan Chemical Co., Ltd.
- Iikubo Yuichi
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Method of preparing perfluoroalkadiene
- Publication number 20080262195
- Publication date Oct 23, 2008
- Hae-Seok Ji
- C07 - ORGANIC CHEMISTRY
Information Patent Application
DRY-ETCHING GAS FOR SEMICONDUCTOR PROCESS
- Publication number 20080203353
- Publication date Aug 28, 2008
- ULSAN CHEMICAL Co., Ltd.
- Hae Seok JI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
DRY-ETCHING GAS FOR SEMICONDUCTOR PROCESS AND PREPARATION METHOD TH...
- Publication number 20070265478
- Publication date Nov 15, 2007
- ULSAN CHEMICAL Co., Ltd.
- Hae Seok JI
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Reactor for producing hydrofluorocarbon compound
- Publication number 20040101448
- Publication date May 27, 2004
- ULSAN CHEMICAL Co., Ltd.
- Iikubo Yuichi
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD OF PRODUCING DIFLUOROMETHANE
- Publication number 20040102659
- Publication date May 27, 2004
- ULSAN CHEMICAL Co., Ltd.
- Iikubo Yuichi
- C07 - ORGANIC CHEMISTRY