Tetsuo Hachiya

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Production process of 2,7-dibromofluorenone
- Patent number 6,977,313
- Issue date Dec 20, 2005
- JFE Chemical Corporation
- Youko Sugio
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing bromofluorenes
- Patent number 6,858,764
- Issue date Feb 22, 2005
- JFE Chemical Corporation
- Tetsuo Hachiya
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Separation and purification method of xylenol isomer
- Patent number 6,150,566
- Issue date Nov 21, 2000
- Adchemco Corporation
- Tetsuo Hachiya
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of manufacturing aromatic urethanes
- Patent number 5,130,464
- Issue date Jul 14, 1992
- NKK Corporation
- Takao Ikariya
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Production process of 2,7-dibromofluorenone
- Publication number 20040059160
- Publication date Mar 25, 2004
- JFE CHEMICAL CORPORATION
- Youko Sugio
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Method for preparing bromofluorenes
- Publication number 20030065226
- Publication date Apr 3, 2003
- ADCHEMCO Corporation
- Tetsuo Hachiya
- C07 - ORGANIC CHEMISTRY