Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8166812 | Vibrating wire viscometers | Sophie Nazik Godefroy, Anthony Robert Holmes Goodwin, Christopher Harrison, Kai Hsu, Noriyuki Matsumoto | 2012-05-01 |
| 8156800 | Methods and apparatus to evaluate subterranean formations | Toru Terabayashi, Satoru Umemoto, Anthony Smits, Hidenori TSUBOI | 2012-04-17 |
| 8136394 | Methods and apparatus for analyzing a downhole fluid | Kai Hsu, Kentaro Indo | 2012-03-20 |
| 7793712 | Downhole tool | Tsutomu Yamate, Hiroshi Inoue, Jiro Takeda, Yukio Sudo, Satoru Umemoto | 2010-09-14 |