Development Results From
New Business and Core
Technologies
In phosphoric acid fuel cells (PAFCs), our 100 kW
units, which we started selling in fiscal 1998, all
reached durability limits of 40,000 hours in operating
time, which was the initial target. Furthermore,
at some sites, units that have been
overhauled remain in operation and have
exceeded 77,000 hours of operating time. In
2006, we started selling units with a design life of
60,000 hours, and at present, the Group is striving
to increase the uptake of 100 kW PAFCs by
using its combined strengths to develop nextgeneration
products designed to be more compact
and reduce costs.
In polymer electrolyte fuel cells (PEFCs),
we have developed a 1 kW prototype unit for
residential use, and we conducted tests to
verify durability and reliability from fiscal 2005.
As a result, we have set targets for commercialization
and are continuing to assess PEFC
operation using demonstration units. Our commercialization
targets entail achieving a tenyear
operating life comprising 40,000 hours of
operating time, during which the PEFCs can be
switched on and off 4,000 times. In addition,
we are taking part in a national project, where
we are contributing to efforts aimed at reducing
the cost of PEFC peripheral equipment and
gaining greater insight into the processes at
work inside PEFCs during operation.
Our efforts to develop full-color organic EL
panels have resulted in the development of an
active matrix drive panel* with a screen size of
2.8 inches, a pixel count of 240 (RGB) × 320,
and a brightness of 150 cd/m2. The panel,
which utilizes the color conversion material
(CCM) system, has been shown to perform at
the level required for mobile device displays. In
addition, we have realized a manufacturing
method that bonds Fuji Electric’s proprietary
CCM substrate, made using ink-jet printing,
with a blue monochromatic organic EL substrate
that is easy to manufacture in large volumes.
This constitutes a further advance in the
development of technology to produce larger
panels at lower cost.
In core technologies, we took action to
speed up and increase the efficiency of product
design and development by constructing a
technology platform (technologies that underpin
our other technologies) consisting of the
Group’s common core technologies in electronics,
embedded systems, and other such
fields, with the results spread across the Group.
We continue to expand and upgrade this program
and to broaden its scope of application.
* Active matrix drive panel: A method of display
that enables the signal to be selectively switched
on or off by means of “active” switching elements
in each pixel of a display. The advantages of this
method are high contrast and fast response.
R&D Framework (As of April 1, 2008)

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