Microwave treatment device
US12177956B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2020 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Feb 3, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A microwave treatment device includes a heating chamber for accommodating a heating target, a microwave generator, a feeder, a detector, and a controller. The microwave generator generates a microwave having a frequency in a specified frequency band. The feeder radiates the microwave inside the heating chamber. The detector detects a reflected microwave power reflected from the heating chamber. The controller causes the microwave generator to execute a frequency sweeping in the specified frequency band, and controls the microwave generator according to a temporal change in a frequency characteristic of the reflected microwave power. The temporal change in the frequency characteristic of the reflected microwave power is based on the frequency of the microwave, a level of the reflected microwave power, and a time passed from a start of heating. Thus, it is possible to accurately recognize the progress of cooking while heating the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.