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International application No. Applicant's or agent's file reference
PCT/KR2020/005996 F202003-0030
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
07 May 2020 14 May 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 filed or furnished:
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.

An electronic device includes a foldable housing, wherein through a first hinge structure, the second surface of a first housing structure face the fourth surface of a second housing structure in a folded state and the first surface of the first housing structure and the third surface of the second housing structure face in the same direction in an unfolded state, and through a second hinge structure, the third surface faces the fifth surface of a third housing structure in the folded state and the third surface and the fifth surface face in the same direction in the unfolded state; and a flexible display, wherein the second surface includes a recess whose vertical distance to the first surface is shorter than a vertical distance of a nearby site, and the fourth surface includes a portion corresponding to the recess to make surface contact with the second surface.

6. Drawings
The figure of the drawings to be published with the abstract is Figure No.     5    
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.


     G09F 9/30 (2006.01)i; G06F 1/16 (2006.01)i; F16C 11/04 (2006.01)i; H04M 1/02 (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:
한국등록실용신안공보 및 한국공개실용신안공보: 조사된 최소문헌란에 기재된 IPC
일본등록실용신안공보 및 일본공개실용신안공보: 조사된 최소문헌란에 기재된 IPC
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
eKOMPASS(KIPO internal) & keywords: foldable, hinge, flexible display, recess, portion, thickness


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 2017-0025634 A1 (SAMSUNG DISPLAY CO., LTD.) 26 January 2017 paragraphs [0038]-[0044]; and figures 1-2
US 2015-0227225 A1 (SAMSUNG ELECTRONICS CO., LTD.) 13 August 2015 paragraphs [0065]-[0070]; and figure 3B
KR 10-2016-0034660 A (LG ELECTRONICS INC.) 30 March 2016 paragraph [0034]; and figure 1d
KR 10-2017-0048232 A (JIN CHEOL SHIN) 08 May 2017 paragraphs [0070]-[0075]; and figure 10
KR 10-2014-0090921 A (SAMSUNG ELECTRONICS CO., LTD.) 18 July 2014 paragraphs [0059]-[0060]; and figures 9-10
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 2017-0025634 A1
26 January 2017
CN 106373490 A
KR 10-2017-0012739 A
US 9923156 B2
01 February 2017
03 February 2017
20 March 2018
US 2015-0227225 A1
13 August 2015
CN 105980955 A
CN 105980955 B
CN 105992989 A
CN 110320976 A
EP 3105649 A1
EP 3105657 A1
KR 10-2015-0094479 A
KR 10-2015-0094480 A
KR 10-2015-0094481 A
KR 10-2016127 B1
KR 10-2019-0108551 A
KR 10-2019-0124189 A
KR 10-2024187 B1
KR 10-2039172 B1
US 10379573 B2
US 10528078 B2
US 10671115 B2
US 2015-0227224 A1
US 2018-0164851 A1
US 2019-0339740 A1
US 2020-0064885 A1
US 9891663 B2
WO 2015-119480 A1
WO 2015-119485 A1
28 September 2016
09 August 2019
05 October 2016
11 October 2019
21 December 2016
21 December 2016
19 August 2015
19 August 2015
19 August 2015
21 October 2019
24 September 2019
04 November 2019
04 November 2019
31 October 2019
13 August 2019
07 January 2020
02 June 2020
13 August 2015
14 June 2018
07 November 2019
27 February 2020
13 February 2018
13 August 2015
13 August 2015
KR 10-2016-0034660 A
30 March 2016
US 2016-0085325 A1
US 9911054 B2
WO 2016-047860 A1
WO 2016-047860 A9
24 March 2016
06 March 2018
31 March 2016
12 May 2016
KR 10-2017-0048232 A
08 May 2017
WO 2017-057783 A1
06 April 2017
KR 10-2014-0090921 A
18 July 2014
KR 10-1857754 B1
15 May 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:
11 August 2020
Date of mailing of the international search report:
11 August 2020
Authorized officer:
Telephone No. +82-42-481-5709
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