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:
Jul. 14, 2026
Filed:
Apr. 21, 2023
Nec Corporation, Tokyo, JP;
Taizo Shibuya, Ibaraki, JP;
Akinobu Shibuya, Ibaraki, JP;
Takashi Miyazaki, Ibaraki, JP;
Kentaro Shinoda, Ibaraki, JP;
Jun Akedo, Ibaraki, JP;
Mohammed Shahien Yamada, Ibaraki, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A ceramic film for a TPV power generation device, the ceramic film having a sufficiently high strength thus making it possible to obtain a desirable radiation spectrum, is provided. A ceramic film () according to an example embodiment is a ceramic film that is formed on a base material and has pores, and includes a plurality of high-density regions () having a density higher than an average density of the entire ceramic film and a plurality of low-density regions () having a density lower than the average density of the entire ceramic film. Further, the high-density regions () and the low-density regions () are stacked in layers. The ceramic film is composed of an oxide ceramic containing a rare-earth element.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile