Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5046324 | Defrosting controller for refrigeration systems | Tadao Otoh, Satoshi Ohya, Masaki Ishiguro | 1991-09-10 |
| 4872320 | Refrigeration showcase | Yoshirou Ishizaka, Hiroshi Naganuma, Kenji Sato, Yuji Kishi, Kiyokazu Goto | 1989-10-10 |