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. 23, 2022
Filed:
Apr. 08, 2020
Hitachi, Ltd., Tokyo, JP;
Yosuke Kurosaki, Tokyo, JP;
Shin Yabuuchi, Tokyo, JP;
Jun Hayakawa, Tokyo, JP;
Yuzuru Miyazaki, Sendai, JP;
Tomohisa Takamatsu, Sendai, JP;
Kei Hayashi, Sendai, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention improves the performance of a thermoelectric conversion material and a thermoelectric conversion module. A thermoelectric conversion material has a mother phase containing a chimney ladder type compound comprising a first element of groups 4 to 9 and a second element of groups 13 to 15 and an additive phase existing at a grain boundary of the mother phase, the mother phase contains a third element to change a lattice constant of the chimney ladder type compound, and the additive phase contains the second element.