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:
Oct. 22, 2024

Filed:

Jul. 16, 2020
Applicant:

Hiroshima University, Higashihiroshima, JP;

Inventors:

Sadafumi Nishihara, Higashihiroshima, JP;

Masaru Fujibayashi, Higashihiroshima, JP;

Katsuya Inoue, Higashihiroshima, JP;

Masahiro Sadakane, Higashihiroshima, JP;

Assignee:

HIROSHIMA UNIVERSITY, Hiroshima, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10B 53/30 (2023.01); C01B 25/45 (2006.01); H10K 10/00 (2023.01); H10K 10/50 (2023.01); H10K 19/00 (2023.01);
U.S. Cl.
CPC ...
H10K 10/701 (2023.02); C01B 25/45 (2013.01); H10B 53/30 (2023.02); H10K 10/50 (2023.02); H10K 19/202 (2023.02);
Abstract

A molecular memory recording molecular polarization of a single-molecule electret, and the single-molecule electret includes a cluster skeletonhaving a continuous holeand a plurality of stable ionic sitesand a metal ion M. The molecular polarization is shown in a state in which the metal ion is included in the stable ionic site. The molecular polarization is changed by movement of the metal ion to the other hollow stable ionic site by application of an electric field. The recordkeeping time of the molecular memory in a temperature range of −100° C. to 100° C. based on the ion radius of the metal ion is 3.0×10seconds to 9.1×10seconds. Based on the recordkeeping time, the molecular memory is used as any of a volatile memory, a non-volatile memory, and a storage class memory.


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