Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5390530 | Leak detection method for gas, steam or the like based, in part, on the measurement of wind direction and velocity | Akira Hosonuma, Saburoh Takahashi, Kunio Sakashita, Yoshinori Hiroshige | 1995-02-21 |
| 5297421 | Leak detection system for gas, steam or the like that involves multi-point sampling | Akira Hosonuma, Saburoh Takahashi, Kunio Sakashita, Yoshinori Hiroshige | 1994-03-29 |
| 4462896 | Method of removing arsenic in hydrocarbons | Hiroshi Kitagawa, Toshiyuki Fukushima, Yoriyuki Hayashi | 1984-07-31 |