FORM 6-K

U.S. SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Report of Foreign Private Issuer
Pursuant to Rule 13a-16 or 15d-16 of
the Securities Exchange Act of 1934
Commission File Number:  333-13896

Supplement For the month of February 2012.

Total number of pages: 3

The exhibit index is located on page 1

NIDEC CORPORATION

(Translation of registrant’s name into English)

338 KuzeTonoshiro-Cho,

Minami-Ku,Kyoto 601-8205 Japan

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F:

Form 20-F   X    Form 40-F __

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): _

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): _

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes __    No  X  

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):  82-_____

Information furnished on this form:

EXHIBITS

Exhibit Number

1

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: February 6, 2012
	NIDEC CORPORATION
	By:     /S/ Masahiro Nagayasu
	Senior General Manager, Investor Relations

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NEWS RELEASE

NIDEC CORPORATION

New York Stock Exchange symbol: NJ

Stock exchange code (Tokyo, Osaka): 6594

FOR IMMEDIATE RELEASE

Contact:
	Masahiro Nagayasu
	Senior General Manager
	Investor Relations
	+81-75-935-6140
	ir@jp.nidec.com

Released on February 6, 2012, in Kyoto, Japan

Nidec Announces Expiration of Own Share Repurchase Plan  

(Repurchases of Own Shares Pursuant to Article 459, Paragraph 1, Item 1 of the

Companies Act of Japan.)

　

Nidec Corporation (NYSE: NJ) (the ”Company”) today updated the status of the Company’s  repurchase plan authorized by the Board of Directors on February 5, 2011, as modified by a resolution of the Board of Directors on October 7, 2011, as follows, and announced the expiration of the plan.

Details of Share Repurchase  　

1. Period of own share repurchase: From February 1, 2012 through February 6, 2012

2. Class of shares: Common stock

3. Number of own shares repurchased: 0 shares

4. Total repurchase amount: 0 yen

5. Method of repurchase: Repurchase on the Osaka Securities Exchange through a trust established for this purpose.

Reference

A) The following details were resolved by the Company’s Board of Directors on February 5, 2011　and October 7, 2011:

1. Class of shares: Common stock

2. Total number of shares to be repurchased: Up to 6,000,000 shares　

(4.14% of total number of shares issued)

3. Total repurchase amount: Up to 47 billion yen

4. Period of repurchase: From February 7, 2011 through February 6, 2012

B) The accumulative number of own shares repurchased up to February 6, 2012, pursuant to the Board of Directors resolution above:

1. Accumulative number of own shares repurchased: 2,316,700 shares

2. Total repurchase amount: 14,982,398,000 yen

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