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CSR

CSR Integrated Report

Fujikura Group CSR Integrated Report 2016
Corporate Profile

Research and Development

Message from the Top of Research and Development Division

Akira Wada
Senior Vice President & Member of the Board

With the 2020 Medium-Term Plan concluding in FY 2020, our Group will prioritize the investment of R&D resources into optics, electronic components, and electric wiring/cables, which are foundational for the core technologies supporting technology for human connectivity (Tsunagu Technology). We will further strengthen the component technologies that compose these technological foundations, expand into their peripheries, and engage in R&D that will secure our advantage in Tsunagu Technology, broadening its base. With Tsunagu Technology as our base, we will accelerate Fujikura’s process of renewal, engaging in the creation of new business and development of new products that anticipate societal changes and customer demand across the five business domains of information and communication, electronics, energy, automotive electronics, medical equipment and industrial equipment.
Through the establishment of a global research organization, we will set our eyes to the world's technological trends and promote the timely introduction of research and development themes while also actively pursuing open innovation that maximizes external technology applications. Additionally, in regards to human resources, which form the core of R&D, we will focus on utilizing global human resources together with cultivating a human resource pool with the ability to consider R&D from a business point stance.
In addition to development of the materials that form the foundation of our company, we are also engaged in comprehensive R&D that includes the four technological domains of information and communication, energy, electronics, automobiles in addition to technology that exists in the fusional areas between them. We will continue to take action in researching new technologies for the coming generations and realizing captivating products demanded by customers across the globe.
Also, we are proactively engaged in the development of new electrical components through the application of the Group’s core technologies while we continue activities closely tied to our European customers active in the adoption of new technologies, positioning ourselves in Germany as our development base for the European automotive electronics industry.

Introduction of a laboratory

Advanced Technology Laboratory

In addition to development of the materials that form the foundation of our company, we are also engaged in comprehensive R&D that includes the four technological domains of information and communication, energy, electronics, automobiles in addition to technology that exists in the fusional areas between them. We will continue to take action in researching new technologies for the coming generations and realizing captivating products demanded by customers across the globe.

Fujikura Automotive Euope

Fujikura Automotive Euope

Also, we are proactively engaged in the development of new electrical components through the application of the Group’s core technologies while we continue activities closely tied to our European customers active in the adoption of new technologies, positioning ourselves in Germany as our development base for the European automotive electronics industry.

Major research fields

Information and communications field

For next-generation optical communication, we are doing results as a member of Japan-Europe collaboration of optical fiber exceeding existing transmission capacity limit. We are also challenging application technologies such as fiber lasers using optical technology, including next-generation optical communication technology.

Energy field

We are working on the development of advanced technologies that contribute to tomorrow's energy society, including superconducting wire rods expected to be used for lossless energy transmission, battery technology that supplies energy more efficiently, and material technology that supports them.

Electronics field

We are pursuing the development of a wide range of electronic component technologies ranging from mobile terminals indispensable to information society, electronic devices mounted on wearable devices, substrate technology and sensor technology for that, and thermal solution technology.

Automotive electronics field

We are advancing research and development of cutting-edge technologies aiming for safe and environmentally friendly cars, such as technology to reduce environmental burden, communication technology of surroundings and technology to sense the surrounding environment, to automate the next-generation automobile society It is.

Medical / industrial equipment field

We are promoting the development of state-of-the-art medical devices such as endoscopes that make full use of optical technology and 3D mounting technology for minimally invasive medical treatment that reduces physical burden and effective treatment. In the industrial field, we are working on high power and high quality fiber lasers, which is the comprehensive optical technology as next-generation industrial equipment.

New Products and Technologies

1.FutureGuideR-Ace

As digital signal processing (DSP) technology advances, attenuation characteristics of optical fibers become more highlighted. In addition, it is desired in an access network communication system, to satisfy both characteristics of fully-compatible connectivity with conventional low-water-peak fibers (ITU-T recommendation G.652.D, Fujikura product:FutureGuideR-LWP) and excellent bending-loss (macro-bend loss) properties which allow high-density cabling. FutureGuideR-Ace has achieved lower attenuation over all the transmission band including 1,380 nm (E) band than FutureGuideR-LWP with improvements in the manufacturing technology of the fibers (please refer the graph below). Moreover, by setting the designed value of nominal mode field diameter (MFD) to the same value with the conventional low-water-peak fibers, FutureGuideR-Ace enables minimizing of connection and splicing losses between them, and the same procedures and machine-setting of fusion splicing and post-splice check as conventional fibers can be used. The product also provides improved macro-bending loss characteristics that fulfill ITU-T recommendation G.657.A1 (specifying macro-bending loss down to minimum bending radius of 10 mm)
With the best mix of these characteristics required for the latest network, FutureGuideR-Ace has great versatility for various types of application such as core network and FTTH network, and thus is the most suitable fiber product for a new-generation network.

FutureGuideR-Ace

2.Multicore fiber (MCF)

We deployed 19 cores that can propagate six types of light simultaneously and developed the world's highest density optical fiber by multiplexing 114 information paths into one fiber. By using such an optical fiber, it will be possible to transfer thousands of HDTV movies in a second in the future. This high density optical fiber maintains the reliability that it is not broken and easy to bend, and the high reliable optical fiber that can correspond to the required exa (1018) ・ bit as future information communication volume increases It is expected as.

Multicore fiber (MCF)

3.The Vapor-phase Axial Deposition (VAD) Method for Mass Production of High-quality Optical Fiber is Recognized as IEEE Milestone

The vapor-phase axial deposition (VAD) method*1 for mass production of high-quality optical fibers was recognized as an IEEE Milestone. The method was collaboratively developed and successfully commercialized by Fujikura, Nippon Telegraph and Telephone Corporation (hereafter NTT) with other two companies.
The IEEE Milestone is the world's prestigious prize awarded by the world's largest professional association in the field of electrical and electronic engineering, information and communication. Fujikura has been a warded the IEEE Milestone for the first time.

4.6kW fiber laser

Fujikura has expanded the lineup of high-power fiber laser products by adding a newly developed 6 kW fiber laser (FLC-6000M-W) to solve the problem that a conventional fiber laser was subject to halting or breakdown due to reflected laser light from a workpiece. This product represents the pinnacle of our technologies of optical fibers, optical components, high-power lasers and cooling. As a result, it enables high-speed welding of 20 mm stainless or 10 mm cupper and thus opens up new possibilities in laser processing such as cutting and welding metal.

6kW fiber laser

6kW fiber laser

5.Energy-harvesting Wireless Environmental Sensor System

An energy-harvesting wireless environmental sensor system is powered by a dye-sensitized solar cell(DSC) for low-light use. This sensor system is equipped with sensors of temper ature, humidity, illuminance, atmospheric pressure and motion (globe thermometers available as external add-on sensors) and collects the captured information about the environment wirelessly.
The DSC incorporated in the system has a power generation mechanism that resembles photosynthesis by plants. This product thus converts even scattering light and low light to electric power with a high degree of efficiency, being suitable for use in the shadow and indoors as well as in a bright place. As the product is free from battery changes and usable anywhere, it is best suited for use as the power supply of energy-harvesting equipment.

6.Development of Small Lightweight Lithium Ion Capacitor

Fujikura has developed a small lightweight lithium ion capacitor of its energy density five times higher than an electric double-layer capacitor (EDLC) and twice higher than a conventional lithium ion capacitor.
The energy density of this product has successfully been increased to 19 W/kg by increasing capacitance per unit weight of the cathode manufactured using our proprietary design methodologies and material techniques. In addition, a low internal resistance of the product was also achieved by modifying the electrolyte to prevent the internal resistance from rising with an increase in the energy density. This allows the lithium ion capacitor to maintain its inherently excellent power input/output property and secure enhanced reliability due to reductions in heat generated by the cell.
Because of such a feature, this capacitor is expected to become one of the capacitors suitable for use in portable equipment, mobile units and vehicles. Thus we are working on putting the capacitor to practical use in two years.

7.Millimeter-wave Bandpass Filter

Applications of millimeter-wave technology have been attracting attention as the millimeter-wave band is useful for high-speed wireless communications and vehicle radar systems. The millimeter-wave band is typified by 60 GHz band (IEEE 802.11 ad/WiGig) and E band with higher frequencies ranging from 71 to 86 GHz.  Fujikura has been developed high-performance passive front-ends and antennas, which can be used at the millimeter-wave band. It has also developed the world's first bandpass filter of low-loss glass post-wall waveguide type. This bandpass filter has a post-wall waveguide assembled in a silica glass substrate with a relative dielectric constant of 3.82 and an extremely low dielectric loss tangent of 0.00036 at 60 GHz. The bandpass filter is also capable of operating in higher frequency bands such as the E band as well as in the 60 GHz band.

Millimeter-wave Bandpass Filter