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:
Jan. 07, 2025
Filed:
Aug. 12, 2022
Denso Corporation, Kariya, JP;
Tokyo University of Science Foundation, Tokyo, JP;
Yoshihiro Kozawa, Kariya, JP;
Noriyuki Matsushita, Kariya, JP;
Kazuhiko Kano, Kariya, JP;
Yumi Tanaka, Tokyo, JP;
Hiroki Otsuka, Tokyo, JP;
Yusuke Edano, Tokyo, JP;
DENSO CORPORATION, Kariya, JP;
TOKYO UNIVERSITY OF SCIENCE FOUNDATION, Tokyo, JP;
Abstract
A power generator includes a power generating unit and at least one of a power storage unit or an output unit that is electrically connected to the power generating unit. The power generating unit includes an electret having a first charged surface and a second charged surface that are charged with opposite polarities, a first electrode formed on the first charged surface, and a second electrode formed on the second charged surface. The electret is formed by polarizing an electret material that includes an inorganic dielectric having a bandgap energy of 4 eV or more. At least one of the first electrode or the second electrode are partially disposed on the corresponding charged surface such that at least one of the first charged surface or the second charged surface has a portion as a current collecting surface exposed outward.