Nidec Announces Financial Results for the Year Ended March 31, 2005

KYOTO, Japan--April 25, 2005--Nidec Corporation announced today its financial results under U.S.GAAP for the period of April 1, 2004 to March 31, 2005. Here are highlights:

-- Record-high in net sales, operating income, income before provisions for income taxes and net income

-- A 75% increase in net sales and triple-digit increases in operating income, income before income tax and minority interests and net income as compared to the previous year

-- Record-high in operating profit margin at 11.0%, up 3.1% compared to the previous year

-- Growth driven by a consolidation of three companies: Nidec Copal Corporation, Nidec Copal Electronics Corporation and Sankyo Seiki Mfg. Co., Ltd., the overall impact of which translates into 85% of the year-on-year sales increase

-- Year-end dividend forecast revised upward to Y25 per share, making the FY2004 full-year dividend total Y45 per share

A table of financial highlights is as follows:

Consolidated Financial Results (from April 1, 2004 to March 31, 2005)

                                Japanese yen 
                          (millions except per share amounts)
                          ------------------------------------
                              Year ended March 31,
                          --------------------------------------------
                          2005                 2004             Change
                          --------------------------------------------
Net sales                 Y485,861            Y277,497           75.1%
Operating income            53,665              22,015          143.8%
Income before provision 
 for income taxes           57,290              19,639          191.7%
Net income                  33,455              16,089          107.9%
Net income per share-basic Y479.74            Y251.14
Net income per 
 share-diluted             Y456.58            Y241.53
                         ===================================

Notes:

1. Percentage change indicates the change relative to the same period of the previous fiscal year

2. Average number of shares issued and outstanding (consolidated):

69,734,952 shares for the year ended March 31, 2005

64,062,509 shares for the year ended March 31, 2004

For a full copy of Nidec's financial results release, please visit our website at http://www.nidec.co.jp/english/ir/index.html

About Nidec Corporation

Nidec Corporation is the global leader in drive-technology products, focusing on brushless DC motors. Nidec manufactures small precision motors and mid-size motors, which comprise more than half of its total sales; machinery and other products comprise the remainder. Nidec is one of 19 Japanese companies listed on the New York Stock Exchange and has 110 group companies in 14 countries employing 90,000 people. Nidec was founded in Kyoto, Japan in 1973 by Shigenobu Nagamori, its current President and CEO.