Young J. Joo

Person

Taejeon, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Method for preparing cyclohexyl phenyl ketone from 1,3-butadiene an...
- Patent number 6,881,865
- Issue date Apr 19, 2005
- Korea Kumho Petrochemical Co., Ltd.
- Young J. Joo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing 4-nitroso-substituted aromatic amine
- Patent number 6,552,229
- Issue date Apr 22, 2003
- Korea Kumho Petrochemical Co., Ltd.
- Young-J Joo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of preparing p-phenylenediamine
- Patent number 6,245,943
- Issue date Jun 12, 2001
- Korea Kumho Petrochemical Co., Ltd.
- Young J. Joo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Manufacturing method for 4-nitrosoaniline from urea and nitrobenzene
- Patent number 6,198,001
- Issue date Mar 6, 2001
- Korea Kumho Petrochemical Co., Ltd.
- Young J. Joo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of 4,4'-dinitrodiphenylamine from urea and nitrobenzene
- Patent number 6,156,932
- Issue date Dec 5, 2000
- Korea Kumho Petrochemical Co., Ltd.
- Young J. Joo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing 4-nitrodiphenylamine and 4-nitrosodiphenylamin...
- Patent number 6,137,010
- Issue date Oct 24, 2000
- Korea Kumho Petrochemical Co., Ltd.
- Young J. Joo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing ethylbenzene from 4-vinylcyclohexene
- Patent number 6,130,362
- Issue date Oct 10, 2000
- Korea Kumho Petrochemical Co., Ltd.
- Young J. Joo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing 2-methyl-1,4-naphthoquinone (vitamin K.sub.3)
- Patent number 5,770,774
- Issue date Jun 23, 1998
- Korea Kumho Petrochemical Co., Ltd.
- Young J. Joo
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing anthraquinones
- Patent number 5,723,675
- Issue date Mar 3, 1998
- Korea Kumho Petrochemical Co., Ltd.
- Young J. Joo
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Method for preparing cyclohexyl phenyl ketone from 1,3- butadiene a...
- Publication number 20040073068
- Publication date Apr 15, 2004
- Korea Kumho Petrochemical Co., Ltd.
- Young J. Joo
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Novel photosensitizers of 9-hydroxypheophorbide-a derivatives used...
- Publication number 20030087947
- Publication date May 8, 2003
- Jeong Woo Cho
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Young J. Joo

Person

Patents Grantslast 30 patents

Method for preparing cyclohexyl phenyl ketone from 1,3-butadiene an...

Method for preparing 4-nitroso-substituted aromatic amine

Method of preparing p-phenylenediamine

Manufacturing method for 4-nitrosoaniline from urea and nitrobenzene

Preparation of 4,4'-dinitrodiphenylamine from urea and nitrobenzene

Method for preparing 4-nitrodiphenylamine and 4-nitrosodiphenylamin...

Method for preparing ethylbenzene from 4-vinylcyclohexene

Method for preparing 2-methyl-1,4-naphthoquinone (vitamin K.sub.3)

Method for preparing anthraquinones

Patents Applicationslast 30 patents

Method for preparing cyclohexyl phenyl ketone from 1,3- butadiene a...

Novel photosensitizers of 9-hydroxypheophorbide-a derivatives used...