Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475131 | Method of cleaning rotary drum of horizontal drum-type centrifugal separator using a solid cleaning medium | Takao Yoshida | 2002-11-05 |
| 5459568 | Concentration measuring apparatus | Masaya Yano | 1995-10-17 |