Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6947873 | Method and apparatus for generating measurement data | Takashi Ohgawara, Koji Yamamoto, Masayuki Torimitsu | 2005-09-20 |
| 6530284 | Geographical displacement sensing unit and monitoring apparatus using the same | Takaaki Ikeda, Takashi Oogawara | 2003-03-11 |
| 6119535 | Underground water level sensing unit and ground monitoring system using the same | Takaaki Ikeda, Takashi Oogawara | 2000-09-19 |