Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6977313 | Production process of 2,7-dibromofluorenone | Youko Sugio, Naoyuki Kitamura, Tetsuo Hachiya | 2005-12-20 |
| 6858764 | Method for preparing bromofluorenes | Tetsuo Hachiya, Naoyuki Kitamura, Toshiyuki Yasuda | 2005-02-22 |