Kenji Ekawa

Person

Wakayama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
4,4′-dihydroxyphenyl bicyclohexenes
- Patent number 7,196,232
- Issue date Mar 27, 2007
- Honshu Chemical Industry Co., Ltd.
- Kouji Satomi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing 1, 1-bis(4-hydroxyphenyl)-3,3,5-trimethylcycl...
- Patent number 6,992,227
- Issue date Jan 31, 2006
- Honshu Chemical Industry Co., Ltd.
- Kazuhiko Yao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of producing pure 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylc...
- Patent number 6,972,344
- Issue date Dec 6, 2005
- Honshu Chemical Industry Co., Ltd.
- Kazuhiko Yao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Orthoalkylation catalyst for phenol and process for producing ortho...
- Patent number 6,951,966
- Issue date Oct 4, 2005
- Honshu Chemical Industry Co., Ltd.
- Mitsuhiro Higashi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing high purity 1,1-bis(4-hydroxyphenyl)cyclohexanes
- Patent number 6,875,896
- Issue date Apr 5, 2005
- Honshu Chemical Industry Co., Ltd.
- Kazuhiko Yao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydroxyphenyl adamantanes and process for the production of the same
- Patent number 6,720,460
- Issue date Apr 13, 2004
- Honshu Chemical Industry Co., Ltd.
- Akira Yoshikawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for production of 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylc...
- Patent number 6,673,974
- Issue date Jan 6, 2004
- Honshu Chemical Industry Co. Ltd.
- Kazuhiko Yao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of producing 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcycloh...
- Patent number 6,673,973
- Issue date Jan 6, 2004
- Honshu Chemical Industry Co., Ltd.
- Kazuhiko Yao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclo...
- Patent number 6,673,975
- Issue date Jan 6, 2004
- Honshu Chemical Industry Co., Ltd.
- Kazuhiko Yao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for removing butyl groups from butyl phenol compounds
- Patent number 6,512,149
- Issue date Jan 28, 2003
- Honshu Chemical Industry Co., Ltd.
- Kazuhiko Yao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for production of 1,3-di(2-p-hydroxyphenyl-2-propyl)benzene
- Patent number 6,326,522
- Issue date Dec 4, 2001
- Honshu Chemical Industry Co. Ltd.
- Toru Nakaguchi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing alicyclic monoketones and process for produci...
- Patent number 6,313,351
- Issue date Nov 6, 2001
- Honshu Chemical Industry Co., Ltd.
- Norimoto Kiya
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Novel 4,4'-dihydroxyphenyl bicyclohexenes
- Publication number 20060129001
- Publication date Jun 15, 2006
- Kouji Satomi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Method of producing pure 1,1-bis-(4-hydroxyphenyl)-3,3,5- trimethyl...
- Publication number 20050165258
- Publication date Jul 28, 2005
- Kazuhiko Yao
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for producing high purity 1,1-bis(4-hydroxyphenyl)cyclohexanes
- Publication number 20050004405
- Publication date Jan 6, 2005
- Kazuhiko Yao
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Hydroxyphenyl adamantanes and process for the production of the same
- Publication number 20030187307
- Publication date Oct 2, 2003
- Akira Yoshikawa
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for removing butyl groups from butyl phenol compounds
- Publication number 20020007092
- Publication date Jan 17, 2002
- Kazuhiko Yao
- C07 - ORGANIC CHEMISTRY

Kenji Ekawa

Person

Patents Grantslast 30 patents

4,4′-dihydroxyphenyl bicyclohexenes

Process for producing 1, 1-bis(4-hydroxyphenyl)-3,3,5-trimethylcycl...

Method of producing pure 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylc...

Orthoalkylation catalyst for phenol and process for producing ortho...

Method for producing high purity 1,1-bis(4-hydroxyphenyl)cyclohexanes

Hydroxyphenyl adamantanes and process for the production of the same

Process for production of 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylc...

Method of producing 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcycloh...

Method for producing 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclo...

Method for removing butyl groups from butyl phenol compounds

Process for production of 1,3-di(2-p-hydroxyphenyl-2-propyl)benzene

Process for producing alicyclic monoketones and process for produci...

Patents Applicationslast 30 patents

Novel 4,4'-dihydroxyphenyl bicyclohexenes

Method of producing pure 1,1-bis-(4-hydroxyphenyl)-3,3,5- trimethyl...

Method for producing high purity 1,1-bis(4-hydroxyphenyl)cyclohexanes

Hydroxyphenyl adamantanes and process for the production of the same

Method for removing butyl groups from butyl phenol compounds