Fujikura Ltd.

Electric Wire and Cable

It's the founding father of our company, the oldest technology platform, and the beginning of everything. Since we started manufacturing electric wires and cables in 1885, we have been conducting R & D to contribute to the development of the energy and information communications fields. We also conduct R & D for automobiles.

High-Speed Communication Technology

Technology related to "Telecommunication" within the technology platform "Electric wire and cable".
We are researching and developing high-speed communication technology" to cope with the tremendous increase in the amount of information communication.

Related technology

Coaxial Cable

Coaxial Cable

Micro coaxial cables have been used as internal wiring materials in small electronic devices such as notebook PCs because of their excellent transmission characteristics at high frequencies and their small diameter and flexibility.
In recent years, micro coaxial cables have come to be used in a variety of applications, and demand higher bending strength and applications of higher speed data transmission.
The photo on the right shows an example of a higher bending strength micro coaxial cable. By changing the material and configuration of the center conductor, we have achieved more than 10 times the bending performance of the conventional type. Our cable can be designed and manufactured to meet customer requirements for bending performance.
With the advent of high-speed interface standards, such as USB 3.1 and PCI Express Gen4, with transmission speeds exceeding 10 Gbps, there is a need for reducing the amount of attenuation than ever for internal wiring materials. Fujikura is developing micro coaxial cables with even lower attenuation by improving the insulation and shield structure.

Automotive Communication System

Automotive Communication System

As electronic systems which are installed in automobiles become higher functionality, communication systems are becoming increasingly larger and faster.
We are developing a wiring harness system that enables stable high-speed communication even in a harsh automotive environment by utilizing EMC measurement and simulation technology in complicated communication paths.
We are researching and developing not only standardized automotive Ethernet which is expected to become more popular in the future, but also devices, network equipment, and control technology required for automotive communication systems which exceed 10Gbps using glass optical fiber which would be practically used in the near future.

Electromagnetic field simulation Transmission characterization (Eye pattern)
AOC(Active Optical Cable) Next generation automotive network architecture

For inquiries regarding research and development, please contact us from here.

Automotive Power Supply Wiring Technology

Technology related to "Automotive power supply wiring" within the technology platform "Electric wire and cable".
In modern automobiles, which can be called a mass of electronic equipment, a stable supply of power is an important function that can be said to be a lifeline.
We are developing a power distribution architecture to meet new needs.

Related technology

Automotive Power Supply System

Automotive Power Supply System

In modern automobiles, which can be described as a collection of electronic equipment, a stable power supply is an important function that could be termed the lifeline, and the importance of wiring harnesses which as a power supply infrastructure is increasing. In autonomous driving, which is expected to become widespread in the near future, electric power securing is a top priority even in an emergency, and we believe that technology which is related to aggressively control, shutdown and limit for the power supply is needed. In addition to the optimization and protection for conventional wiring harness technology which is stretched every corner of the vehicle as an electric distribution network, we are developing a power distribution architecture that can meet these new needs by using simulation technology that estimates the demand of power supply for power the entire system. Regarding to high power rapid charging, which is a key technology to the spread of electric vehicles, we are promoting research and development to provide the total solutions for wiring systems from vehicle batteries to rapid chargers through the development of technologies for connecting with cables and terminals that can respond large currents exceeding 400 A, as well as for cooling.

Next Generation Power Architecture Power control/shutoff unit
Power simulation Battery wiring Module and high voltage junction box
Rapid Charge Cable for EV (Electric vehicle)

Rapid Charge Cable for EV (Electric vehicle)

Electric vehicles are expected to become increasingly popular in the future due to extended cruising range and green policies. Regarding the charging infrastructure, chargers with 3 ~ 7 times the power of conventional chargers have been started practical use to meet the needs of shorten charging time which is associated with larger capacity of battery, and standardization of liquid-cooled cable with connectors is being considered. Fujikura is the first developer of cooling technology for high power charge cable and connector terminals in Japan which applicable 200 kW class charger.
In order to meet the needs of the next generation of chargers, we are researching and developing cooling technologies which applicable 900 kW class. Fujikura aim for releasing the charging connector and cables with superior cooling efficiency, operability and handling. As the importance of energy issues increases, Fujikura will actively promote the development of cables and equipments that contribute to energy conservation, reduction of environmental impact, and effective use of resources.

Flexibility of the liquid-cooled cable

Comparison of cable surface temperature rise in continuous energizing
(Upper part: Liquid cooling cable, energizing current 400 A, lower part: General cable, energizing current 200 A)

For inquiries regarding research and development, please contact us from here.

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