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j-fiber GmbH, Jena, Germany

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Name

j-fiber GmbH

Identification

Ut
District Court of Jena HRB 210166
Lei
529900AMIKBM68BUEE11
EUID
DEY1206V.HRB210166

Address

Im Semmicht 1, 07751 Jena, Germany

Corporate purpose

The development, production and distribution of products for tele- and data communication, in particular fiber optic cables and their precursors, as well as the marketing of know-how in these areas. Furthermore, the development, production, maintenance and sale of machines and other equipment for the production of optical glass and for the production of tele- and data communication media and products as well as the marketing of know-how in these areas.

Financials

Employees

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History

Marketing & Tech

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DATA SERVICES

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Publications

12 Dec 2025
Word figurative mark: “j - fiber“
19 Nov 2025
Annual report for the year ending 31/12/2024 · Balance sheet for 31/12/2024 · Earnings statement for 31/12/2024
8 Sept 2025
Annual report for the year ending 31/12/2023 · Balance sheet for 31/12/2023 · Shareholdings: Hengtong Group, J-Fiber Hengtong GmbH
27 Mar 2025
Patent: Verfahren zum Herstellen einer Preform zum Herstellen einer Mehrkernfaser sowie Preform und Mehrkernfaser
27 Jan 2025
Managing Director: Jianwei Huang
11 Dec 2024
Patent: Sensor Fibre for Temperature, Expansion and/or Torsion Detection in the Form of a Multi-Core Optical Fibre with a Fibre Bragg Grating Structure
1 Dec 2024 in Fk
Public funding (€100,267): Heterogeneous Integration of Raumultiplexing in Telecommunications Networks - HIRO -
10 Sept 2024
Managing Director: Qiang Wang · No longer Managing Director: Jian Yuan
31 Jul 2024
Patent: Quartz Fibre with Hydrogen Barrier Layer and Method for the Production Thereof
Year 2024 in Dpmap
4 patent filings: Quarzfaser mit Wasserstoff-Barriereschicht und Verfahren zu deren Herstellung …
25 Apr 2024
Annual report for the year ending 31/12/2022 · Balance sheet for 31/12/2022 · Earnings statement for 31/12/2022
6 Oct 2023
No longer Managing Director: Ulrich Lossen
Year 2023 in Dpmap
9 patent filings: Verfahren zum Herstellen einer Glasfaser-Preform mit einem Kern mit einem polygonalen Kernquerschnitt …
30 Jun 2023
Managing Director: Jian Yuan
21 Jun 2023
No longer Authorized signatory (ppa) (1)
24 May 2023
Managing Director: Jian Yuan
11 Apr 2023
Original document: “Liste der Gesellschafter“
Year 2022 in Dpmap
6 patent filings: Verfahren zum Herstellen einer Glasfaser-Preform mit einem Kern mit einem polygonalen Kernquerschnitt …
4 Oct 2022
Annual report for the year ending 31/12/2021 · Balance sheet for 31/12/2021 · Earnings statement for 31/12/2021
24 May 2022 via LEONI AG
Shareholder: LEONI AG
2 May 2022
No longer Control: LEONI Kabel GmbH (damals firmierend LEONI Kabel Holding GmbH)
3 Jan 2022
Original document: “Liste der Gesellschafter“
27 Nov 2021
Patent: Krümmungsunempfindliche Gradientenindex-Multimode-Lichtleitfaser
1 Aug 2021 in Fk
Public funding (€97,958): Multi-core fibers and amplifiers of the highest capacity - Multi-Cap -, Subproject: Optimized optical structures in multi-core fibers
15 Jun 2021 via LEONI AG
Shareholder: LEONI AG
31 Mar 2021
Utility patent: Preform zur Herstellung eines Lichtwellenleiters
4 Mar 2021
Patent: Verfahren zur Metallisierung einer optischen Faser
Year 2020 in Dpmap
4 patent filings: Quarzfaser mit Wasserstoff-Barriereschicht und Verfahren zu deren Herstellung …
1 Jul 2020
Patent: Device for Coating a Fibre, and Method for Coating a Fibre
6 May 2020
Patent: Method for the Defined Deposition of a Glass Layer on an Inner Wall of a Preform
29 Apr 2020
Original document: “Liste der Gesellschafter“
14 Apr 2020 via LEONI AG
Shareholder: LEONI AG
Year 2019 in Dpmap
8 patent filings: Verfahren zum Herstellen einer Preform zum Herstellen einer Mehrkernfaser sowie Preform und Mehrkernfaser …
7 Nov 2019
No longer Managing Director: Michael Gawronski
23 Sept 2019
Authorized signatory (ppa) (1)
18 Sept 2019
Patent: Method of Production for an Optical Fiber
6 May 2019 via LEONI AG
Shareholder: LEONI AG
14 Mar 2019
Managing Director: Reinhold F. Flohrer
Year 2018 in Dpmap
6 patent filings: Lichtleiter und Verfahren zum Erkennen eines zu stark gekrümmten Lichtleiters …
29 Aug 2018
Patent: Optical Fiber Containing a Doped Glass Fiber Core and Cladding Around the Fiberglass Core
30 Apr 2018 via LEONI AG
Shareholder: LEONI AG
25 Apr 2018 via LEONI AG
Shareholder: LEONI AG
20 Sept 2017 via FiberCore Machinery Jena GmbH
Merger: FiberCore Machinery Jena GmbH
20 Sept 2017
Merger: FiberCore Machinery GmbH · Share­holder agreement · Corporate Purpose
Year 2017 in Dpmap
15 patent filings: Mehrdüsiger rohrförmiger Plasma-Abscheidebrenner zur Herstellung von Vorformen als Halbzeuge für optische Fasern …
21 Aug 2017
Original document: “Gesellschaftsvertrag / Satzung / Statut“
21 Aug 2017
Original document: “Unternehmensvertrag / Umwandlungsvertrag / sonstiger Vertrag“
3 May 2017 via LEONI AG
Shareholder: LEONI AG
1 Jan 2017 in Fk
Public funding (€158,697): Growth Core TOF - VP1: Robust Technical Fibers - TP1.1: Preform Materials and Technologies - PreMaTec
27 Oct 2016
Original document: “Liste der Gesellschafter“
9 Sept 2016
Word figurative mark: “j-fiber Jena“
1 Sept 2016 in Fk
Public funding (€117,720): Innovative UV LED curable polymer materials for coating glass fibers for medicine and material processing, TP2: Modification of a fiber drawing system for UV-LED curing of …
3 Aug 2016
Patent: Multi-Nozzle Tubular Plasma Deposition Burner for Producing Preforms AS Semi-Finished Products for Optical Fibers
13 Jul 2016
Patent: Verfahren zum definierten Abscheiden einer Glasschicht an einer Innenwand einer Vorform sowie Vorform und Kommunikationssystem
1 Jun 2016
Patent: Verfahren zur Herstellung von strahlungsresistentem Quarzglasmaterial und danach hergestellte Quarzglaskörper
26 May 2016
Wordmark: “INFOGLAS“
17 May 2016 via LEONI AG
Shareholder: LEONI AG
3 May 2016
Managing Director: Michael Gawronski, Ulrich Lossen · No longer Managing Director: Lothar Brehm
5 Jan 2016
Patent: Vorrichtung zum Beschichten einer Faser sowie Verfahren zum Beschichten einer Faser und Faser
Year 2015 in Dpmap
10 patent filings: Verfahren zur Fertigung einer Preform für eine Gradientenindex-Multimodefaser unter Anwendung einer Innenwand-Rohrabscheidung …
6 May 2015
Patent: Polarization-Maintaining Optical Fibre and Preform and Method for Producing the Same
5 May 2015 via LEONI AG
Shareholder: LEONI AG
17 Dec 2014 via FiberCore Machinery Jena GmbH also 22/12/2008
Control, Control: FiberCore Machinery Jena GmbH
10 Dec 2014
Control: LEONI Kabel Holding GmbH
Year 2014 in Dpmap
9 patent filings: Verfahren zur Herstellung einer polarisationserhaltenden Lichtleitfaser, Preform zur Herstellung einer polarisationserhaltenden Lichtleitfaser und polarisationserhaltende …
9 May 2014 via LEONI AG
Shareholder: LEONI AG
Year 2013 in Dpmap
6 patent filings: Verfahren und Vorrichtung zur Herstellung von Glasfaser-Preformen …
16 Apr 2013 via LEONI AG
Shareholder: LEONI AG
29 Jan 2013
Annual report for the year ending 31/12/2011 · Balance sheet for 31/12/2011 · Earnings statement for 31/12/2011 · Shareholdings: % LEONI Kabel Holding GmbH, FiberCore Machinery Jena GmbH, j-plasma …
Year 2012 in Dpmap
14 patent filings: Verfahren zur Herstellung eines Halbzeugs zur Fertigung einer Biegeoptimierten Lichtleitfaser …
5 Dec 2012
Control: LEONI Kabel Holding GmbH
31 Oct 2012
Patent: Method for Producing a Glass Fiber
19 Oct 2012
Original document: “Unternehmensvertrag / Umwandlungsvertrag / sonstiger Vertrag“
11 Apr 2012 via LEONI AG
Shareholder: LEONI AG
9 Jan 2012
Original document: “Liste der Gesellschafter“
8 Dec 2011
Original document: “Liste der Gesellschafter“
18 Nov 2011
Patent: Method for Producing a Radiation-Resistant Quartz Glass Material, and Quartz Glass Bodies Produced According to Said Method
Year 2011 in Dpmap
6 patent filings (3 patents, 1 utility patent): Verfahren zur Herstellung eines Halbzeugs zur Fertigung einer biegeoptimierten Lichtleitfaser …
15 Aug 2011
Annual report for the year ending 31/12/2010 · Balance sheet for 31/12/2010 · Earnings statement for 31/12/2010 · Shareholdings (4 companies)
5 Apr 2011 via LEONI AG
Shareholder: LEONI AG
4 Apr 2011
Word figurative mark: “j-fiber Jena“
30 Mar 2011
Managing Director: Ulrich Lossen · No longer Authorized signatory (ppa): Ulrich Lossen
14 Mar 2011
Annual report for the year ending 31/12/2009 · Balance sheet for 31/12/2009 · Earnings statement for 31/12/2009 · Shareholdings (4 companies)
26 Jan 2011
Managing Director (1) · No longer Managing Director (1) · No longer Authorized signatory (ppa) (1)
Year 2010 in Dpmap
15 patent filings: Lichtleitfaser Enthaltend einen Dotierten Glasfaserkern und ein den Glasfaserkern Umgebendes Cladding …
15 Sept 2010
Persons
1 Aug 2010 in Fk
Public funding (€194,803): 3: Protective layers, TP3.4: High-performance optical fibers - j-fiber
25 Feb 2010
Annual report for the year ending 31/12/2008 · Balance sheet for 31/12/2008 · Earnings statement for 31/12/2008 · Shareholdings (4 companies)
Year 2009 in Dpmap
6 patent filings (3 patents, 1 utility patent): Glas, insbesondere Glasfaser-Preform …
23 Apr 2009 via LEONI AG
Shareholder: LEONI AG
16 Feb 2009
Annual report for the year ending 31/12/2007 · Balance sheet for 31/12/2007 · Earnings statement for 31/12/2007 · Shareholdings: FiberCore Machinery Jena GmbH, jplasma GmbH
25 Dec 2008
Patent: Verfahren zur Herstellung von Glasfaserpreformen mit einem großen Kerndurchmesser
25 Sept 2008
Patent: Verfahren zur Herstellung von Glasfaserpreformen mit einem großen Kerndurchmesser
13 May 2008 via LEONI AG
Shareholder: LEONI AG
5 May 2008 via LEONI AG
Shareholder: LEONI AG
8 Apr 2008
Original document: “Liste der Gesellschafter“
8 Apr 2008
Original document: “Liste der Gesellschafter“
22 Feb 2008
Annual report for the year ending 31/12/2006 · Balance sheet for 31/12/2006 · Earnings statement for 31/12/2006 · Shareholdings: FiberCore Machinery Jena GmbH, j-plasma GmbH
29 Aug 2007
No longer Managing Director (1)
30 Mar 2007
Managing Director (2)
2 Feb 2007
Share­holder agreement
26 Jan 2007
Original document: “Liste der Gesellschafter“
26 Jan 2007
Original document: “Liste der Gesellschafter“
25 Jan 2007
Patent: Verfahren zur Herstellung von Glasfaserpreformen mit einem großen Kerndurchmesser
19 Jan 2007
Original document: “Gesellschaftsvertrag / Satzung / Statut“
1 Jan 2007 in Fk
Public funding (€595,340): Fiber laser of the highest brilliance (FaBri) - Sub-projects: Research and realization of ytterbium-doped preforms and fibers for fiber lasers in the multi-kW range with …
19 Jul 2006
Patent: Method for Producing Glass-Fibre Preforms with a Large Core Diameter
22 Mar 2006
Reg­is­tra­tion · Managing Director (2) · Capital: €400,000 · Seat: Jena · Legal form · Name: j-fiber GmbH · Proxy policy · Corporate Purpose
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Mentions

3 Feb 2025 in Ler
No longer Direct parent: LEONI AG
3 Feb 2025 in Ler
No longer Ultimate parent: LEONI AG
29 Apr 2020 in Hrdk also 19/04/2007
j-plasma GmbH: “Liste der Gesellschafter“
13 May 2019 in Hrdk
j-fiber Hengtong GmbH: “Liste der Gesellschafter“
15 Aug 2018 in Ler
Direct parent: j-plasma GmbH
There are no publications matching your search.

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