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:
Aug. 22, 2023
Filed:
Dec. 28, 2018
Sumitomo Electric Industries, Ltd., Osaka, JP;
Toyota School Foundation, Nagoya, JP;
Masahiro Adachi, Osaka, JP;
Kotaro Hirose, Osaka, JP;
Makoto Kiyama, Osaka, JP;
Takashi Matsuura, Osaka, JP;
Yoshiyuki Yamamoto, Osaka, JP;
Tsunehiro Takeuchi, Nagoya, JP;
Shunsuke Nishino, Nagoya, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
TOYOTA SCHOOL FOUNDATION, Nagoya, JP;
Abstract
A thermoelectric conversion material includes: a base material that is a semiconductor composed of a base material element; a first additional element that is an element different from the base material element, has a vacant orbital in a d orbital or f orbital located internal to an outermost shell of the first additional element and forms a first additional level in a forbidden band of the base material; and a second additional element that is an element different from both of the base material element and the first additional element and forms a second additional level in the forbidden band of the base material. A difference is 1 between the number of electrons in an outermost shell of the second additional element and the number of electrons in at least one outermost shell of the base material element.