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j-fiber GmbH, Jena, Germany

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j-fiber GmbH

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Name

j-fiber GmbH

Identification

Ut
District Court of Jena HRB 210166
Lei
529900AMIKBM68BUEE11
EUID
DEY1206.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.

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Merger & Acquisition & Control

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3Managing Director
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Publications

31 Aug 2026
Merger: j-fiber Hengtong GmbH
31 Aug 2026
Not registered: The creditors of the legal entities involved in the merger are entitled to ...
25 Aug 2026
Annual report for the year ending 31/12/2025 · Balance sheet for 31/12/2025 · Earnings statement for 31/12/2025 · Shareholding: J-Fiber Hengtong GmbH
30 Dec 2025
Patent: Process for producing a preform for the production of a multi-core fiber as well as preform and multi-core 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 · Earnings statement for 31/12/2023 · 2 Shareholdings: Hengtong Group, J-Fiber Hengtong GmbH
27 Mar 2025
Patent: Process for producing a preform for the production of a multi-core fiber as well as preform and multi-core fiber
27 Jan 2025
Managing Director: Jianwei Huang
11 Dec 2024
Patent: Sensor fiber for temperature, strain and/or torsion detection in the form of a multi-core fiber optic cable with a fiber Bragg lattice structure
1 Dec 2024 in Fk
Public funding (€100,267): Heterogeneous Integration of Raumultiplexing in Telecommunications Networks - HIRO -
Year 2024 in Dpmap
5 patent filings: Device for aligning a blow of a tubular preform of a fiber optic cable as well as method for impact correction …
28 Oct 2024
Word figurative mark: “j - fiber“
10 Sept 2024
Managing Director: Qiang Wang · No longer Managing Director: Jian Yuan
31 Jul 2024
Patent: Quartz fibre with hydrogen barrier layer and processes for its production
25 Apr 2024
Annual report for the year ending 31/12/2022 · Balance sheet for 31/12/2022 · Earnings statement for 31/12/2022 · Shareholder: J-Fiber Hengtong GmbH, Leoni Kabel GmbH
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
27 Jun 2023 via LEONI AG also 24/05/2022, 15/06/2021, 03/11/2020, 14/04/2020, 06/05/2019, 30/04/2018, 25/04/2018, 03/05/2017, 17/05/2016, 05/05/2015, 05/05/2015, 09/05/2014, 02/05/2014, 10/04/2013, 11/04/2012, 07/04/2011, 05/04/2011, 07/05/2010, 27/04/2010, 23/04/2009, 13/05/2008, 05/05/2008
Shareholder: LEONI AG
21 Jun 2023
No longer Authorized signatory (ppa) (1)
24 May 2023
Managing Director: Jian Yuan
11 Apr 2023
Original document: “Liste der Gesellschafter“
4 Apr 2023
Original document: “Liste der Gesellschafter“
Year 2022 in Dpmap
7 patent filings: Process for producing a fiberglass preform with a core with a polygonal core cross-section …
4 Oct 2022
Annual report for the year ending 31/12/2021 · Balance sheet for 31/12/2021 · Earnings statement for 31/12/2021
2 May 2022
No longer Profit Transfer: 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 (€77,536): Multi-core fibers and amplifiers of the highest capacity - Multi-Cap -, Subproject: Optimized optical structures in multi-core fibers
31 Mar 2021
Utility patent: Preform for the production of a fiber optic cable
4 Mar 2021
Patent: Verfahren zur Metallisierung einer optischen Faser
Year 2020 in Dpmap
4 patent filings: Quartz fibre with hydrogen barrier layer and processes for its production …
6 May 2020
Patent: Method for Defined Deposition of a Glass Layer on an Inner Wall of a Preform
29 Apr 2020
Original document: “Liste der Gesellschafter“
Year 2019 in Dpmap
8 patent filings: Process for producing a preform for the production of a multi-core fiber as well as preform and multi-core fiber …
7 Nov 2019
No longer Managing Director: Michael Gawronski
23 Sept 2019
Authorized signatory (ppa) (1)
18 Sept 2019
Patent: Method for the production of an optical fiber
14 Mar 2019
Managing Director: Reinhold F. Flohrer
14 Mar 2019
Original document: “Liste der Gesellschafter“
11 Mar 2019
Original document: “Gesellschaftsvertrag / Satzung / Statut“
Year 2018 in Dpmap
6 patent filings: Light guide and method for detecting a light guide that is too curved …
29 Aug 2018
Patent: Optical fiber Containing a doped glass fiber core and a cladding surrounding the glass fiber core
20 Sept 2017 via FiberCore Machinery Jena GmbH also 20/09/2017
Merger: FiberCore Machinery Jena GmbH
20 Sept 2017
Merger: FiberCore Machinery GmbH · Share­holder agreement · Corporate Purpose
Year 2017 in Dpmap
10 patent filings: Multi-nozzle tubular plasma deposition torch for the production of preforms as semi-finished products for optical fibers …
21 Aug 2017
Original document: “Gesellschaftsvertrag / Satzung / Statut“
21 Aug 2017
Original document: “Unternehmensvertrag / Umwandlungsvertrag / sonstiger Vertrag“
1 Jan 2017 in Fk
Public funding (€158,697): Growth Core TOF - VP1: Robust Technical Fibers - TP1.1: Preform Materials and Technologies - PreMaTec
15 Dec 2016
Patent: Device for coating a fiber and method for coating a fiber and fiber
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: Process for the production of radiation-resistant quartz glass material and quartz glass bodies produced thereunder
26 May 2016
Wordmark: “INFOGLAS“
3 May 2016
Managing Director: Michael Gawronski, Ulrich Lossen · No longer Managing Director (1)
5 Jan 2016
Patent: Vorrichtung zum Beschichten einer Faser sowie Verfahren zum Beschichten einer Faser und Faser
Year 2015 in Dpmap
7 patent filings: Process for the production of a preform for a gradient index multimode fiber using an inner wall pipe separation …
6 May 2015
Patent: Polarization-Maintaining Optical Fibre and Preform and Method for Producing the Same
10 Dec 2014
Profit Transfer: LEONI Kabel Holding GmbH
Year 2014 in Dpmap
9 patent filings: Process for the production of a polarization-preserving optical fiber, preform for the production of a polarization-preserving light conductive fiber and polarization-preserving …
Year 2013 in Dpmap
6 patent filings: Process and device for the production of fibre glass preforms …
16 Apr 2013 via LEONI AG
Shareholding: 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 · 3 Shareholdings: % LEONI Kabel Holding GmbH, FiberCore Machinery Jena GmbH, j-plasma …
3 Jan 2013 via j-plasma GmbH
Shareholder: j-plasma GmbH
5 Dec 2012
Profit Transfer: LEONI Kabel Holding GmbH
31 Oct 2012
Patent: Method for Producing a Glass Fiber
19 Oct 2012
Original document: “Unternehmensvertrag / Umwandlungsvertrag / sonstiger Vertrag“
Year 2012 in Dpmap
11 patent filings: Curvature insensitive gradient index multimode light guide fiber …
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 (2 patents, 1 utility patent): Process for the production of a semi-finished product for the production of a bend-optimized light conductive fiber …
15 Aug 2011
Annual report for the year ending 31/12/2010 · Balance sheet for 31/12/2010 · 4 Shareholdings (4 companies)
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 · 4 Shareholdings (4 companies)
26 Jan 2011
Managing Director (1) · No longer Managing Director (1) · No longer Authorized signatory (ppa) (1)
Year 2010 in Dpmap
6 patent filings: Method for the production of a glass fibre with a fiber optic core and/or a pump core and such glass fibre …
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 · 4 Shareholdings (4 companies)
Year 2009 in Dpmap
6 patent filings (3 patents, 1 utility patent): Glass, especially glass fiber preform …
16 Feb 2009
Annual report for the year ending 31/12/2007 · Balance sheet for 31/12/2007 · Shareholder (4 companies)
25 Dec 2008
Patent: Verfahren zur Herstellung von Glasfaserpreformen mit einem großen Kerndurchmesser
26 Nov 2008
Original document: “Gesellschaftsvertrag / Satzung / Statut“
25 Sept 2008
Patent: Verfahren zur Herstellung von Glasfaserpreformen mit einem großen Kerndurchmesser
8 Apr 2008
Original document: “Liste der Gesellschafter“
8 Apr 2008
Original document: “Liste der Gesellschafter“
8 Apr 2008
Original document: “Liste der Gesellschafter“
8 Apr 2008
Original document: “Liste der Gesellschafter“
8 Apr 2008
Original document: “Liste der Gesellschafter“
8 Apr 2008
Original document: “Liste der Gesellschafter“
8 Apr 2008
Original document: “Liste der Gesellschafter“
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 · Shareholder: FiberCore Machinery Jena GmbH, J-Plasma GmbH, Leoni Kabel Holding GmbH & Co. KG
29 Aug 2007
No longer Managing Director (1)
19 Apr 2007
Original document: “Liste der Gesellschafter“
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“
26 Jan 2007
Original document: “Liste der Gesellschafter“
26 Jan 2007
Original document: “Liste der Gesellschafter“
26 Jan 2007
Original document: “Liste der Gesellschafter“
26 Jan 2007
Original document: “Liste der Gesellschafter“
26 Jan 2007
Original document: “Liste der Gesellschafter“
26 Jan 2007
Original document: “Liste der Gesellschafter“
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 Lasers of Highest Brilliance (FaBri) - Subproject: Research and realization of ytterbium-doped preforms and fibers for fiber lasers in the multi-kW range with high …
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: GmbH · Name: j-fiber GmbH · Proxy policy · Corporate Purpose
There are no publications matching your search.

Mentions

31 Aug 2026 in Hrcdd
Merger: j-fiber Hengtong GmbH
3 Feb 2025 in Ler
No longer Direct parent
3 Feb 2025 in Ler
No longer Ultimate parent
29 Apr 2020 in Hrdk also 19/04/2007
j-plasma GmbH: “Liste der Gesellschafter“
13 May 2019 in Hrdk also 14/03/2019
j-fiber Hengtong GmbH: “Liste der Gesellschafter“
15 Aug 2018 in Ler
No longer Direct parent: j-plasma GmbH
There are no publications matching your search.

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