Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6681844 | Plate type heat exchanger | Naoyuki Inoue, Toshio Matsubara, Akiyoshi Suzuki, Tomoyuki Uchimura | 2004-01-27 |
| 6564572 | Absorption refrigerator | Tomoyuki Uchimura, Toshio Matsubara, Akiyoshi Suzuki | 2003-05-20 |
| 6442964 | Absorption refrigerating machine | Naoyuki Inoue, Toshio Matsubara | 2002-09-03 |