Oki 2010 Annual Report Download - page 45
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Components of net periodic pension cost for the years ended March 31, 2010, 2009 and 2008 were as follows:
Service cost during the year
Interest cost on projected benefit obligation
Expected return on plan assets
Amortization of obligation at transition
Amortization of actuarial difference
Amortization of prior service cost
Net periodic pension cost
2009 2008 2010
¥ 7,154
3,203
(1,863)
3,992
2,617
(973)
¥ 14,130
2010
¥ 4,982
2,938
(305)
3,598
3,585
(866)
¥ 13,933
¥ 5,602
3,599
(2,045)
4,395
2,542
(1,138)
¥ 12,955
$ 53,569
31,591
(3,279)
38,688
38,548
(9,311)
$ 149,817
Millions of yen
Thousands of
U.S. dollars
(1) Special retirement payments of ¥814 million ($8,752 thousand), ¥3,213 million and ¥1,380 million in the aggregate were made in addi-
tion to the net periodic pension cost presented in the above table for the years ended March 31, 2010, 2009 and 2008, and these
payments are included in “Special retirement expense” and “Business structure improvement expenses.”
(2) The allowance for retirement benefits was determined by the simplified method by certain consolidated subsidiaries and their net
periodic pension cost has been included in service cost of benefits earned during the year.
Assumptions used in the actuarial calculation:
Discount rate:
Expected rates of return:
Amortization period for prior service cost:
Amortization period for actuarial difference:
Amortization period for transition obligation arising from the
initial adoption of a new method of accounting:
14 years (amortized by the straight-line method over a period which falls
within the average remaining years of service of the participants in the
plans, commencing the year subsequent to the year in which the cost
was incurred).
13-14 years (amortized by the straight-line method over a period which
falls within the average remaining years of service of the participants in
the plans, in the year subsequent to the year in which such difference
was incurred).
15 years, except for certain consolidated subsidiaries which charged or
credited it to income when incurred, and certain overseas subsidiaries
which charge it directly to retained earnings.
20092010
Years ended March 31,
2.10%
0.50%
2.10%
2.30%