A Balasingam, JM Janky - US Patent 9,735,711, 2017 - Google Patents
Improving wind-based piezoelectric power conversion is provided. For example, a piezoelectric element affixed to a vibratory member is provided. A rigid mounting system …
S Morioka, M Yamanaka - US Patent 9,786,451, 2017 - Google Patents
According to one embodiment, a remote control device for a toilet device includes an operation button and a power generator. The operation button is capable of a push …