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.

Date of Patent:
Jul. 28, 2026

Filed:

Dec. 06, 2021
Applicant:

Resonac Corporation, Tokyo, JP;

Inventors:

Takeshi Igarashi, Kawasaki, JP;

Chieko Nakagawa, Koriyama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/20 (2023.01); C01B 32/156 (2017.01); C07C 17/266 (2006.01); C07C 22/08 (2006.01); C07C 23/46 (2006.01); C07D 307/93 (2006.01); H10K 30/30 (2023.01);
U.S. Cl.
CPC ...
H10K 85/215 (2023.02); C01B 32/156 (2017.08); C07C 17/266 (2013.01); C07C 22/08 (2013.01); C07C 23/46 (2013.01); C07D 307/93 (2013.01); C01P 2006/40 (2013.01); C07C 2604/00 (2017.05); H10K 30/30 (2023.02);
Abstract

A fullerene derivative having a partial structure shown in the following General Formula (1) is provided. (in Formula (1), C*'s are adjacent carbon atoms that form a fullerene framework. Rfand Rfeach independently represents a perfluoroalkyl group having 1 to 4 carbon atoms, and Rfand Rfmay be linked to each other to form a ring structure).


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