Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4422500 | Metal hydride heat pump | Tomoyoshi Nishizaki, Minoru Miyamoto, Kazuaki Miyamoto, Ken Yoshida, Yasushi Nakata | 1983-12-27 |
| 4409799 | Heat pump device | Tomoyoshi Nishizaki, Minoru Miyamoto, Kazuaki Miyamoto, Ken Yoshida, Yasushi Nakata | 1983-10-18 |