4 US patents granted on 03 August 2010 and assigned to Matsushita
| 1 | 7,770,082 | Semiconductor integrated circuit and test method therefor |
| 2 | 7,768,509 | Liquid crystal display device and driving method of the liquid crystal display device |
| 3 | 7,766,613 | Pump and liquid supply system |
| 4 | 7,765,816 | Start-up control method for refrigeration cycle apparatus and refrigeration cycle control apparatus using the same |