Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7166750 | Process for the preparation of 5-[(4-chlorophenyl)methyl]-2,2-dimethylcyclopentanone | Kazuhiko Sunagawa, Shigeru Mizusawa, Nobuyuki Kusano, Satoru Kumazawa | 2007-01-23 |
| 6916939 | Process for the preparation of cyclic esters and method for purification of the same | Kazuyuki Yamane, Yukichika Kawakami, Kazuhiko Sunagawa | 2005-07-12 |
| 5681979 | Process for the producing of alkylcyclopentanone derivatives | Satoru Kumazawa | 1997-10-28 |
| 5646291 | Process for the manufacture of 2-phenyl-4,5-oxazoledione 4-phenylhydrazone derivatives | Kazuhiko Sunagawa, Takeo Watanabe | 1997-07-08 |
| 5279719 | Method for chlorination of methylated aromatic compounds | Kazuhiko Sunagawa, Tsumoru Watanabe | 1994-01-18 |