Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7841762 | Liquid mixing apparatus and method of liquid mixing | Goichi Hirota, Katsuji Nishiyama | 2010-11-30 |
| 6530284 | Geographical displacement sensing unit and monitoring apparatus using the same | Eitarou Tambo, Takaaki Ikeda | 2003-03-11 |
| 6119535 | Underground water level sensing unit and ground monitoring system using the same | Eitarou Tambo, Takaaki Ikeda | 2000-09-19 |