The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2024
Filed:
Dec. 17, 2021
Saginomiya Seisakusho, Inc., Tokyo, JP;
Keio University, Tokyo, JP;
Hiroyuki Mitsuya, Sayama, JP;
Hisayuki Ashizawa, Sayama, JP;
Song-Ju Kim, Fujisawa, JP;
Masashi Aono, Fujisawa, JP;
Saginomiya Seisakusho, Inc., Tokyo, JP;
Keio University, Tokyo, JP;
Abstract
A vibration-driven energy harvesting device includes a vibration-driven energy harvesting element that generates power according to vibrations of an electrode; an output unit that, when connected to a load resistor, extracts power generated by the vibration-driven energy harvesting element; a judgment unit that judges whether or not a power value of the power is greater than a predetermined threshold value; a determination unit that determines an input impedance of the output unit based on a judgment result obtained by the judgment unit; and an adjustment unit that adjusts the input impedance of the output unit according to a determination made by the determination unit.