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Direct Methanol Fuel Cell
With the growth of environmental awareness worldwide, there has been a growing demand for power generators that allow highly efficient energy use. In addition, emergency power systems are increasingly gaining importance because of The 2011 Tohoku Earthquake and Tsunami and The 2016 Kumamoto Earthquake. Fujikura's direct methanol fuel cell (DMFC) under development offers a high degree of energy efficiency and a low noise level, has an excellent ability to store its fuel, methanol, safely for a long time and thus meets the emergency needs mentioned above. Improvements in the power generating section called membrane electrode assembly (MEA) enabled our product to reach one of the world's highest standard power efficiency (Fig. 1) of 320 mW/cm2 and 1 kW output, which is also the highest in the world. These results attracted attention at an international academic conference, Fuel Cell Seminar & Energy Exposition 2015, held in November 2015 in Los Angeles, USA. Furthermore, a power system that is combined with a secondary cell (Fig. 2) has been prototyped with commercialization in mind. This system is also designed to operate in case of failure of a commercial power source and manage various electrical loads of devices including mobile devices.
Radiation-resistant image fibers are widely used to observe images under the effect of radiation. If radiation-resistant camera, a contending technology, is used, the observation conditions will be strictly limited in consideration of the image quality and the durability of the camera under the effect of high radiation. On the other hand, selecting appropriate additives and setting strictly controlled production conditions enables the production of highly radiation resistant image fibers.Fujikura has developed an image fiber with further improved radiation resistant characteristics, more than 200 times＊1 as long as the observation time of our conventional model under the effect of a dose rate of 10 kGy/h. The fibers that can be produced are those of 100 m for 6,000 pixels and 25 m for 30,000 pixels.The observation system that uses the new image fiber is expected to be used for long-term monitoring, which is required at atomic power plants and other facilities, under the effect of high radiation.＊1 Our conventional products can be used under a low dose rate for a long term; however, for up to 5 minutes at 10 kGy/h.
On the other hand, at this rate, our new model can be used for 18 hours.
Improvement of Characteristics of Radiation-resistant Image Fiber
Thermal Technology Division [email protected]
Optical Fiber Division [email protected]
Fig.1 Diagram of power efficiency characteristics of single unit cell
Comparison of the images between conventional image fiber and improved image fiber (6,000 pixels, 100 m) dose rate: 10 kGy/h
Fig.2 1 kW DMFC power supply unitDimensions: 100 cm (L), 60 cm (W), 74 cm (H)
video monitorshield wall
60CO radiation source
radiation-resistant image fiber
object lens
Target
CCD camera
Initial stage Total dose: 0.8 kGy (after 5 minutes)
Total dose:180 kGy (after 18 hours)
Initial stage
Conventional radiation-resistant image fiber Radiation-resistant image fiber with improved characteristics
Current density (A / cm2)
Pow
er e
ffici
ency
(m
W/ c
m2 )
Direct Methanol Fuel CellElectro-nics
Tele-communi-cations
Fujikura Ltd.1-5-1, Kiba, Koto-ku, Tokyo, Japan 135-8512TEL. +81（0）3 5606 1112 FAX. +81（0）3 5606 1501Issue : December 2016, No. 425 Editor in Chief : Keisuke Okamurahttp://www.fujikura.co.jp
Sales Support & Branch Off ice Management DepartmentKansai Off iceChubu Off iceTohoku Off iceKyushu Off ice
+81(0)3 5606 1095+81(0)6 6364 0373+81(0)52 212 1880+81(0)22 266 3344+81(0)92 291 6126
2016
12
Fujikura News
Fujikura's fiber-optic cabling system (24-core small-diameter aerial cable) using our newest optical technology, SWR®+WTC, has been selected by Energia Communications Inc. and QTNet as an optical wiring system of their FTTH access networks.This fiber-optic cabling system is the most suitable for the setup of access networks and enables quick and economical services of highly expandable fiber-optic cablingWe will continue to progress this cabling system according to customer needs.We beg to be favored with your orders.
＊SWR®＋WTC stands for Spider Web Ribbon＋Wrapping Tube Cable, which is the most advanced future-minded technology key to reducing the diameter and weight of cables.
Fiber Optic Cabling System (24-core Small-diameter Aerial Cable) Using Latest Fiber-optic Technology, SWR®+WTC
Optical Cable Systems Division [email protected] Optical Cable System Division [email protected]
Fujikura proceeds with the development of passive devices and related technologies suitable for millimeter-wave bands (60 GHz band, E band: 71 to 86 GHz) for high-speed wireless communications, which is expected to rapidly spread. Antennas for millimeter-wave bands require high gain and the capability of controlling radiation directions (beam-forming). To meet these needs, Fujikura has developed an array antenna using a multi-layer liquid crystal polymer (LCP) substrate. This substrate with flexibility and low loss made the antenna possible to achieve low loss and high gain, and beam-forming by a unique feeding circuit. The antenna can be used in infrastructure applications such as front-haul, back-haul and the last mile.
Array Antenna for Millimeter-wave applications
Advanced Technology Laboratory [email protected]
The 54th National Skills Competition was held for three days from October 22 to 24 at Yamagata Prefectural General Sports Park.In this competition, 1,300 players participated in 41 categorys consisting of fields such as electronics, telecommunications, machinery, construction, service and fashion to compete for a championship to participate in World Skills Competition to be held in Abu Dhabi, UAE in October 2017. In the Network Cabling, in which players compete in the Information Network Cabling skills, Fujikura provided various technical supports as a sponsor.
Report of the 54th National Skills Competition
Feature1: small diameter and low weight
Feature 3: Development of inexpensive toolsFeature 2: Installation method in which messenger wires of cables do not have to be cut
Anchoring of cables with dead-end winding grip
Easy power line extension work thanks to reduced cable weight
Outline of fiber-optic cabling system using 24-core aerial cable and its advantages
Connected via through-holes
Feed
ing p
ort
Top side (patch antenna)
Back side (feeding circuit)
Cable structure
Standard outer diameter
Approximate weight
4.0 × 10.5 mm (79% smaller than current product)
75 kg/km (79% lighter than current product)
OG4WTGDE-SSWSR15×24C ＜MG＞
3.5 × 5.5 mm (73% smaller than current product)
25 kg(64% lighter than current product)
OG4WTGDESR15×24C
9.5×21.0 mm
240 kg/km
SZ slot fiber-optic cableOG4ETSZWBE-SSW
SR15×24C
24-core aerial cable
messenger wire (2.6 mm in diameter)
tension member
messenger wire
tension memberfour-core SWR®wrapping tube
Four-core SWR ×6
tension member
wrapping tube
Four-core SWR ×6
Features of fiber-optic cabling system1. Small diameter and light in weight
This cable is smaller in diameter and lighter in weight (69% reduction in weight compared to a conventional product) than slot fiber-optic cables with the same number of fibers. This will ease cable installation and lighten the load on power poles.
2. Cabling method in which there is no need to cut messenger wireIn cooperation with one of our group companies, Kyoei High Opt Co., Ltd., we developed a dedicated dead-end grip for 24-core small-diameter aerial cables. This grip does not require cutting of messenger wires and thus improves workability in moving cables due to some trouble and reduces material costs. On the other hand, in doing the same, there was a need to cut out conventional 2.6 mm-dia messenger wires that used their dedicated dead-end fittings.
3. Inexpensive toolWe developed a dedicated tool for 24-core small-diameter aerial cables. This tool allows easy separation of cables at a branch point and a reduction in the initial cost for the cables.
Key Technology 1SWR®：SPIDERWEB RIBBONThe structure of SWR®, of which coated optical fibers are bonded together in places, allows:●high density cable thanks to flexible tape●separation of cable into single fibers
Key Technology 2Wrapping tube structure
Four-core SWR®
Single-core fiber
Four-core SWR® consisting of four single-core fibers bonded together in places
Easily changeable formation of ribbons
Partial bonding between coated optical fibers
coated optical fiber
Easy separation of cable into each fiber with tooth brush
Dedicated separator (with direction marks for cable separation)
1. Separation of messenger wire from the main structure
2. Separation of the main bodyThe optical fibers are enclosed in a plastic tape for fixing them and thus protected from damage when they are removed. This enables easy and safe cabling work.
Beam-forming antenna
R&DFiber Optic Cabling System (24-core Small-diameter Aerial Cable) Using Latest Fiber-optic Technology,
Tele-communi-cations
Tele-communi-cations
Fujikura News
Fujikura's fiber-optic cabling system (24-core small-diameter aerial cable) using our newest optical technology, SWR®+WTC, has been selected by Energia Communications Inc. and QTNet as an optical wiring system of their FTTH access networks.This fiber-optic cabling system is the most suitable for the setup of access networks and enables quick and economical services of highly expandable fiber-optic cablingWe will continue to progress this cabling system according to customer needs.We beg to be favored with your orders.
＊SWR®＋WTC stands for Spider Web Ribbon＋Wrapping Tube Cable, which is the most advanced future-minded technology key to reducing the diameter and weight of cables.
Fiber Optic Cabling System (24-core Small-diameter Aerial Cable) Using Latest Fiber-optic Technology, SWR®+WTC
Optical Cable Systems Division [email protected] Optical Cable System Division [email protected]
Fujikura proceeds with the development of passive devices and related technologies suitable for millimeter-wave bands (60 GHz band, E band: 71 to 86 GHz) for high-speed wireless communications, which is expected to rapidly spread. Antennas for millimeter-wave bands require high gain and the capability of controlling radiation directions (beam-forming). To meet these needs, Fujikura has developed an array antenna using a multi-layer liquid crystal polymer (LCP) substrate. This substrate with flexibility and low loss made the antenna possible to achieve low loss and high gain, and beam-forming by a unique feeding circuit. The antenna can be used in infrastructure applications such as front-haul, back-haul and the last mile.
Array Antenna for Millimeter-wave applications
Advanced Technology Laboratory [email protected]
The 54th National Skills Competition was held for three days from October 22 to 24 at Yamagata Prefectural General Sports Park.In this competition, 1,300 players participated in 41 categorys consisting of fields such as electronics, telecommunications, machinery, construction, service and fashion to compete for a championship to participate in World Skills Competition to be held in Abu Dhabi, UAE in October 2017. In the Network Cabling, in which players compete in the Information Network Cabling skills, Fujikura provided various technical supports as a sponsor.
Report of the 54th National Skills Competition
Feature1: small diameter and low weight
Feature 3: Development of inexpensive toolsFeature 2: Installation method in which messenger wires of cables do not have to be cut
Anchoring of cables with dead-end winding grip
Easy power line extension work thanks to reduced cable weight
Outline of fiber-optic cabling system using 24-core aerial cable and its advantages
Connected via through-holes
Feed
ing p
ort
Top side (patch antenna)
Back side (feeding circuit)
Cable structure
Standard outer diameter
Approximate weight
4.0 × 10.5 mm (79% smaller than current product)
75 kg/km (79% lighter than current product)
OG4WTGDE-SSWSR15×24C ＜MG＞
3.5 × 5.5 mm (73% smaller than current product)
25 kg(64% lighter than current product)
OG4WTGDESR15×24C
9.5×21.0 mm
240 kg/km
SZ slot fiber-optic cableOG4ETSZWBE-SSW
SR15×24C
24-core aerial cable
messenger wire (2.6 mm in diameter)
tension member
messenger wire
tension memberfour-core SWR®wrapping tube
Four-core SWR ×6
tension member
wrapping tube
Four-core SWR ×6
Features of fiber-optic cabling system1. Small diameter and light in weight
This cable is smaller in diameter and lighter in weight (69% reduction in weight compared to a conventional product) than slot fiber-optic cables with the same number of fibers. This will ease cable installation and lighten the load on power poles.
2. Cabling method in which there is no need to cut messenger wireIn cooperation with one of our group companies, Kyoei High Opt Co., Ltd., we developed a dedicated dead-end grip for 24-core small-diameter aerial cables. This grip does not require cutting of messenger wires and thus improves workability in moving cables due to some trouble and reduces material costs. On the other hand, in doing the same, there was a need to cut out conventional 2.6 mm-dia messenger wires that used their dedicated dead-end fittings.
3. Inexpensive toolWe developed a dedicated tool for 24-core small-diameter aerial cables. This tool allows easy separation of cables at a branch point and a reduction in the initial cost for the cables.
Key Technology 1SWR®：SPIDERWEB RIBBONThe structure of SWR®, of which coated optical fibers are bonded together in places, allows:●high density cable thanks to flexible tape●separation of cable into single fibers
Key Technology 2Wrapping tube structure
Four-core SWR®
Single-core fiber
Four-core SWR® consisting of four single-core fibers bonded together in places
Easily changeable formation of ribbons
Partial bonding between coated optical fibers
coated optical fiber
Easy separation of cable into each fiber with tooth brush
Dedicated separator (with direction marks for cable separation)
1. Separation of messenger wire from the main structure
2. Separation of the main bodyThe optical fibers are enclosed in a plastic tape for fixing them and thus protected from damage when they are removed. This enables easy and safe cabling work.
Beam-forming antenna
Array Antenna for Millimeter-wave applications
R&DTele-
communi-cations
Report of the 54th National Skills Competition
Tele-communi-cations
Direct Methanol Fuel Cell
With the growth of environmental awareness worldwide, there has been a growing demand for power generators that allow highly efficient energy use. In addition, emergency power systems are increasingly gaining importance because of The 2011 Tohoku Earthquake and Tsunami and The 2016 Kumamoto Earthquake. Fujikura's direct methanol fuel cell (DMFC) under development offers a high degree of energy efficiency and a low noise level, has an excellent ability to store its fuel, methanol, safely for a long time and thus meets the emergency needs mentioned above. Improvements in the power generating section called membrane electrode assembly (MEA) enabled our product to reach one of the world's highest standard power efficiency (Fig. 1) of 320 mW/cm2 and 1 kW output, which is also the highest in the world. These results attracted attention at an international academic conference, Fuel Cell Seminar & Energy Exposition 2015, held in November 2015 in Los Angeles, USA. Furthermore, a power system that is combined with a secondary cell (Fig. 2) has been prototyped with commercialization in mind. This system is also designed to operate in case of failure of a commercial power source and manage various electrical loads of devices including mobile devices.
Radiation-resistant image fibers are widely used to observe images under the effect of radiation. If radiation-resistant camera, a contending technology, is used, the observation conditions will be strictly limited in consideration of the image quality and the durability of the camera under the effect of high radiation. On the other hand, selecting appropriate additives and setting strictly controlled production conditions enables the production of highly radiation resistant image fibers.Fujikura has developed an image fiber with further improved radiation resistant characteristics, more than 200 times＊1 as long as the observation time of our conventional model under the effect of a dose rate of 10 kGy/h. The fibers that can be produced are those of 100 m for 6,000 pixels and 25 m for 30,000 pixels.The observation system that uses the new image fiber is expected to be used for long-term monitoring, which is required at atomic power plants and other facilities, under the effect of high radiation.＊1 Our conventional products can be used under a low dose rate for a long term; however, for up to 5 minutes at 10 kGy/h.
On the other hand, at this rate, our new model can be used for 18 hours.
Improvement of Characteristics of Radiation-resistant Image Fiber
Thermal Technology Division [email protected]
Optical Fiber Division [email protected]
Fig.1 Diagram of power efficiency characteristics of single unit cell
Comparison of the images between conventional image fiber and improved image fiber (6,000 pixels, 100 m) dose rate: 10 kGy/h
Fig.2 1 kW DMFC power supply unitDimensions: 100 cm (L), 60 cm (W), 74 cm (H)
video monitorshield wall
60CO radiation source
radiation-resistant image fiber
object lens
Target
CCD camera
Initial stage Total dose: 0.8 kGy (after 5 minutes)
Total dose:180 kGy (after 18 hours)
Initial stage
Conventional radiation-resistant image fiber Radiation-resistant image fiber with improved characteristics
Current density (A / cm2)
Pow
er e
ffici
ency
(m
W/ c
m2 )
Electro-nics
Improvement of Characteristics Improvement of Characteristics of Radiation-resistant Image Fiber
Tele-communi-cations
Fujikura Ltd.1-5-1, Kiba, Koto-ku, Tokyo, Japan 135-8512TEL. +81（0）3 5606 1112 FAX. +81（0）3 5606 1501Issue : December 2016, No. 425 Editor in Chief : Keisuke Okamurahttp://www.fujikura.co.jp
Sales Support & Branch Off ice Management DepartmentKansai Off iceChubu Off iceTohoku Off iceKyushu Off ice
+81(0)3 5606 1095+81(0)6 6364 0373+81(0)52 212 1880+81(0)22 266 3344+81(0)92 291 6126
2016
12
