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Extract from the Register of European Patents

EP About this file: EP4253535

EP4253535 - POLYROTAXANE HAVING HYDROXY GROUP OR SULFO GROUP [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  01.09.2023
Database last updated on 29.06.2024
FormerThe international publication has been made
Status updated on  04.06.2022
Most recent event   Tooltip17.04.2024Supplementary search reportpublished on 15.05.2024  [2024/20]
Applicant(s)For all designated states
Denka Company Limited
1-1 Nihonbashi-Muromachi 2-chome
Chuo-ku
Tokyo 103-8338 / JP
For all designated states
National University Corporation Tokyo Medical and Dental University
5-45, Yushima 1-chome
Bunkyo-ku
Tokyo 113-8510 / JP
[2023/40]
Inventor(s)01 / AOYAMA SEKIYA, Ruriko
Tokyo 103-8338 / JP
02 / ARISAKA, Yoshinori
Tokyo 113-8510 / JP
03 / YUI, Nobuhiko
Tokyo 113-8510 / JP
04 / IWATA, Takanori
Tokyo 113-8510 / JP
05 / YODA, Tetsuya
Tokyo 113-8510 / JP
06 / HAKARIYA, Masahiro
Tokyo 113-8510 / JP
07 / MASUDA, Hiroki
Tokyo 113-8510 / JP
 [2023/40]
Representative(s)Gulde & Partner
Patent- und Rechtsanwaltskanzlei mbB
Wallstraße 58/59
10179 Berlin / DE
[2023/40]
Application number, filing date21897917.722.11.2021
[2023/40]
WO2021JP42832
Priority number, dateJP2020019632326.11.2020         Original published format: JP 2020196323
[2023/40]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022113944
Date:02.06.2022
Language:JA
[2022/22]
Type: A1 Application with search report 
No.:EP4253535
Date:04.10.2023
Language:EN
[2023/40]
Search report(s)International search report - published on:JP02.06.2022
(Supplementary) European search report - dispatched on:EP16.04.2024
ClassificationIPC:C08G65/334, C08F293/00, C09D171/02, C12M3/00, C12N5/0775, C08B37/16
[2024/20]
CPC:
C12M23/20 (EP); C12N5/0662 (KR); C12N5/0653 (EP,US);
C08G83/007 (US); C09D187/00 (US); C12N5/0068 (KR);
C12N5/0654 (US); C12N2506/1346 (EP,US); C12N2533/30 (EP,KR,US) (-)
Former IPC [2023/40]C12N11/02, C12M3/00, C12N5/0775
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2023/40]
TitleGerman:POLYROTAXAN MIT EINER HYDROXYLGRUPPE ODER SULFOGRUPPE[2023/40]
English:POLYROTAXANE HAVING HYDROXY GROUP OR SULFO GROUP[2023/40]
French:POLYROTAXANE POSSÉDANT UN GROUPE HYDROXY OU UN GROUPE SULFO[2023/40]
Entry into regional phase01.06.2023Translation filed 
01.06.2023National basic fee paid 
01.06.2023Search fee paid 
01.06.2023Designation fee(s) paid 
01.06.2023Examination fee paid 
Examination procedure01.06.2023Examination requested  [2023/40]
Fees paidRenewal fee
01.06.2023Renewal fee patent year 03
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[A]EP1419791  (JAPAN TISSUE ENG CO LTD [JP], et al);
 [A]WO2017039294  (UNIV-INDUSTRY COOP GROUP OF KYUNG HEE UNIV [KR]);
 [A]WO2017191827  (UNIV NAT CORP TOKYO MEDICAL & DENTAL [JP])
International search[X]  - Arisaka Yoshinori, Yui Nobuhiko, "Tethered bone morphogenetic protein-2 onto sulfonated-polyrotaxane based surfaces promotes osteogenic differentiation of MC3T3-E1 cells", Journal of biomaterials science. Polymer ed., (20170813), vol. 28, no. 10-12, doi:10.1080/09205063.2017.1319095, pages 974 - 985, XP009536866 [X] 8-10 * abstract, fig. 1, 2, 2.3. Preparation of sulfonatedpolyrotaxane, etc. *

DOI:   http://dx.doi.org/10.1080/09205063.2017.1319095
 [YX]  - Rajendran Arun Kumar, Arisaka Yoshinori, Iseki Sachiko, Yui Nobuhiko, "Sulfonated Polyrotaxane Surfaces with Basic Fibroblast Growth Factor Alter the Osteogenic Potential of Human Mesenchymal Stem Cells in Short-Term Culture", HHS Author Manuscripts, US , (20191111), vol. 5, no. 11, doi:10.1021/acsbiomaterials.8b01343, pages 5652 - 5659, XP055869712 [Y] 1-10 [X] 1-10

DOI:   http://dx.doi.org/10.1021/acsbiomaterials.8b01343
 [Y]  - Atsushi Tamura, Hajime Tanaka, Nobuhiko Yui, "Supramolecular flower micelle formation of polyrotaxane-containing triblock copolymers prepared from macro-chain transfer agents bearing molecular hooks", Polymer Chemistry, (20140101), vol. 5, no. 15, doi:10.1039/c4py00379a, ISSN 1759-9954, page 4511, XP055363882 [Y] 1-10 * scheme 1, fig. 6 *

DOI:   http://dx.doi.org/10.1039/c4py00379a
 [Y]  - Seo Ji-Hun, Kakinoki Sachiro, Yamaoka Tetsuji, Yui Nobuhiko, "Directing Stem Cell Differentiation by Changing the Molecular Mobility of Supramolecular Surfaces", Advanced Healthcare Materials, DE , (20150101), vol. 4, no. 2, doi:10.1002/adhm.201400173, ISSN 2192-2640, pages 215 - 222, XP055934942 [Y] 1-7 * fig. 1, 3-5 *

DOI:   http://dx.doi.org/10.1002/adhm.201400173
by applicant   - Cell, (20060000), vol. 126, pages 677 - 689
    - Nature Reviews Materials, (20200000), vol. 5, pages 686 - 705
    - JI-HUN SEO et al., Adv. Healthcare Mater., (20150000), vol. 4, pages 215 - 222
    - Soft Matter, (20120000), vol. 8, pages 5477 - 5485
    - J. Biomater. Sci. Polym. Ed., (20170000), vol. 28, pages 986 - 999
    - ACS Biomater. Sci. Eng., (20180000), vol. 4, pages 1591 - 1597
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.