Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6629821 | Pump apparatus | Hiroshi Yokota, Shingo Yokota | 2003-10-07 |
| 5779445 | Noncontaminative centrifugal pump | Hiroshi Yokota, Masahiro Kawamoto | 1998-07-14 |
| 5294304 | Process for the recovery of absolute ethanol by vapor compression extractive distillation | Yoshikazu Kano, Hirotoshi Horizoe, Itsuo Yamamoto | 1994-03-15 |
| 5250271 | Apparatus to concentrate and purify alcohol | Hirotoshi Horizoe, Masura Maki, Masaki Yanagi | 1993-10-05 |
| 5053563 | Method to concentrate and purify alcohol | Hirotoshi Horizoe, Masura Maki, Masaaki Yanagi | 1991-10-01 |