Pentax 2005 Annual Report Download - page 30

Environmental Initiatives
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1. Reduction of Environmental Burdens
Hoya has identified four important indicators of environmental
burden in its production activities—energy consumption, water
usage, waste volume, and volume of packaging materials—and has
developed indices for each showing the environmental burden per
unit of net sales. Hoya is doing everything it can to achieve
ongoing reductions in these indices of environmental burden.
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Energy Consumption
At the facilities level, Hoya has implemented several changes such
as the conversion from LPG fuel to city gas; improving the
efficiency of cooling cycles through the use of water misting and
evaporative heat in chillers for the cooling water used in clean
room air conditioning systems; and a shift to inverter-type pumps.
It has also expanded its energy-saving activities across the whole of
its operations, including adjustment of air temperatures in offices
and implementation of more efficient interior lighting. As a result,
the ratio of energy consumption to net sales fell by 6% from the
level of the previous fiscal year.
Water Usage
Through advances in the re-use of factory waste water, the ratio
of water usage to net sales decreased by 4% compared with the
previous fiscal year.
Waste Volume
Hoya made ongoing efforts to reduce the volume of waste
materials, through such means as recycling sludge produced by
polishing for use as raw material for concrete, thermal recycling of
waste plastics, and recycling of chemicals. As a result, the ratio of
waste volume to net sales was reduced by 28% year on year.
Volume of Packaging Materials
Hoya sought to reduce the amount of shock-absorbing materials
by reexamining the size of packaging used to ship finished
products. It also promoted the reuse of shipping cardboard boxes
and others. Overall, the ratio of volume of packaging materials to
net sales fell by 17% from the previous fiscal year. Ratio to net sales indicated based on 1999 =100.
Statistics of the 10 domestic production sites
Hoya Corporation: Nagasaka, Hachioji, Kumamoto, Akishima, Nagano, Lens Technology Center,
Minakuchi, Kyushu, Musashi, Kodama
Energy Consumption (Oil Conversion) and Its Ratio to Net Sales
Water Use and Its Ratio to Net Sales
Waste Volume and Its Ratio to Net Sales
Packaging Materials and Their Ratio to Net Sales
1999 2000 2001 2002 2003 2004 2005
100,000
80,000
60,000
40,000
20,000
0
100
80
60
40
20
0
(Oil conversion kl) (Ratio to net sales [1999=100])
4,000
3,000
2,000
1,000
0
100
80
60
40
20
0
(km3)(Ratio to net sales [1999=100])
4,000
3,000
2,000
1,000
0
100
80
60
40
20
0
(Tons) (Ratio to net sales [1999=100])
8,000
6,000
4,000
2,000
0
(Tons) (Ratio to net sales [1999=100])
100
80
60
40
20
0
As a company develops and grows, it is only proper that it should do its utmost to protect the environment. Hoya believes that this is an
absolutely essential condition for any company’s activity. In 1976, Hoya established pollution countermeasure committees at each of its
plants, and has been constantly engaged in environmental protection. Hoya published its third environmental report in 2004, outlining
Hoya’s commitment to the environment. During fiscal 2005, Hoya has dedicated itself to enhancing environmental performance.
1999 2000 2001 2002 2003 2004 2005
1999 2000 2001 2002 2003 2004 2005
1999 2000 2001 2002 2003 2004 2005