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International application No. Applicant's or agent's file reference
PCT/US2020/040279 10030730012
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
30 June 2020 03 July 2019
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.
6. Drawings
The figure of the drawings to be published with the abstract is Figure No.     1    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
none of the figures is to be published with the abstract.


     G11C 13/00 (2006.01)i; G06N 3/063 (2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC


Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Korean utility models and applications for utility models
Japanese utility models and applications for utility models
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
eKOMPASS(KIPO internal) & Keywords: neural network memory, short-term, long-term, operation


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 2004-0243281 A1 (MASAHIRO FUJITA et al.) 02 December 2004 paragraphs [0001], [0105]-[0108]; and figure 2
US 2015-0106315 A1 (UNIVERSITY OF TENNESSEE RESEARCH FOUNDATION) 16 April 2015 paragraphs [0113]-[0249]; and figures 5-20
US 7904398 B1 (DOMINIC JOHN REPICI) 08 March 2011 column 18, line 45 - column 28, line 15; and figures 1-9, 11
US 2018-0005107 A1 (SAMSUNG ELECTRONICS CO., LTD. et al.) 04 January 2018 paragraphs [0058]-[0150]; and figures 1-5
KR 10-2018-0062934 A (KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY) 11 June 2018 paragraphs [0028]-[0069]; and figures 1-9
Special categories of cited documents:
document defining the general state of the art which is not considered to be of particular relevance
document cited by the applicant in the international application
earlier application or patent but published on or after the international filing date
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
document referring to an oral disclosure, use, exhibition or other means
document published prior to the international filing date but later than the priority date claimed
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
document member of the same patent family


Patent document cited in search report Publication date
Patent family member(s) Publication date
US 2004-0243281 A1
02 December 2004
CN 100509308 C
CN 1518489 A
EP 1486300 A1
EP 1486300 B1
JP 2003-334785 A
JP 3558222 B2
KR 10-1137205 B1
KR 10-2004-0098498 A
US 7813835 B2
WO 03-078113 A1
08 July 2009
04 August 2004
15 December 2004
17 August 2011
25 November 2003
25 August 2004
06 July 2012
20 November 2004
12 October 2010
25 September 2003
US 2015-0106315 A1
16 April 2015
US 10019470 B2
US 10055434 B2
US 10095718 B2
US 10248675 B2
US 2015-0106306 A1
US 2015-0106310 A1
US 2015-0106311 A1
US 2015-0106314 A1
US 2015-0106316 A1
US 2018-0018358 A1
US 9753959 B2
US 9798751 B2
10 July 2018
21 August 2018
09 October 2018
02 April 2019
16 April 2015
16 April 2015
16 April 2015
16 April 2015
16 April 2015
18 January 2018
05 September 2017
24 October 2017
US 7904398 B1
08 March 2011
US 2018-0005107 A1
04 January 2018
KR 10-2018-0003123 A
US 10032498 B2
US 10387769 B2
US 2018-0005676 A1
09 January 2018
24 July 2018
20 August 2019
04 January 2018
KR 10-2018-0062934 A
11 June 2018
US 2018-0197076 A1
12 July 2018
Name and mailing address of the ISA/:
Korean Intellectual Property Office
189 Cheongsa-ro, Seo-gu, Daejeon Metropolitan City, 302-701
Republic of Korea
Facsimile No. +82-42-481-8578
Date of the actual completion of the international search:
14 October 2020
Date of mailing of the international search report:
15 October 2020
Authorized officer:
Telephone No. +82-42-481-5709
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