关键词: 感应加热, 电饭煲, 专利, 申请量, 专利布局

Abstract: By analyzing the regional distribution, annual application trends, applicants, and technical content of IH rice cooker patents from 1987 to present, this study evaluates and predicts China's position in the global IH rice cooker industry and the development direction of technology, providing reference for relevant innovation entities to formulate patent layout strategies. China has replaced Japan as the research and development center of IH rice cookers, at present, the IH rice cooker technology is in the mature stage of technology, and the refined control of each heating stage will be the focus of future research and development. Intelligent, energy-saving, noise reduction, and IH rice cookers specifically designed for special populations may also become research hotspots.

Key words: Induction heating, Rice cooker, Patents, Application volume, Patent layout