Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7735356 | Measuring apparatus and measuring method for concrete-forming materials | Shigeyuki Sogo, Ryuichi Chikamatsu, Koji Watanabe | 2010-06-15 |
| 7578207 | Measuring apparatus and measuring method for concrete-forming materials | Shigeyuki Sogo, Ryuichi Chikamatsu, Koji Watanabe | 2009-08-25 |
| 7207212 | Device and method for weighing concrete material | Shigeyuki Sogo, Ryuichi Chikamatsu, Koji Watanabe | 2007-04-24 |