eh1300160_13ga4-advantest.htm

CUSIP No. 00762U200

1	NAME OF REPORTING PERSON KOKUSAI Asset Management Co., Ltd.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Tokyo, Japan

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 237,100
	6	SHARED VOTING POWER -0-
	7	SOLE DISPOSITIVE POWER 237,100
	8	SHARED DISPOSITIVE POWER -0-

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 237,100
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES	o
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0.1%
12	TYPE OF REPORTING PERSON FI

Page 9 of 26

CUSIP No. 00762U200

ITEM 1

	(a)	Name of Issuer

		Advantest Corporation

	(b)	Address of Issuer's Principal Executive Offices

		6-2 Marunouchi 1-chome, Chiyoda-ku, Tokyo 100-0005, Japan

ITEM 2

	(a)	Names of Persons Filing

		Mitsubishi UFJ Financial Group, Inc. ("MUFG")

		The Bank of Tokyo-Mitsubishi UFJ, Ltd. ("BTMU")

		Mitsubishi UFJ Trust and Banking Corporation ("MUTB")

		Mitsubishi UFJ Securities Holdings Co., Ltd. ("MUSHD")

		Mitsubishi UFJ Morgan Stanley Securities Co., Ltd. ("MUMSS")

		Mitsubishi UFJ Asset Management Co., Ltd. ("MUAM")

		kabu.com Securities Co., Ltd. ("KC")

		KOKUSAI Asset Management Co., Ltd. ("KAM")

	(b)	Address of Principal Business Office or, if none, Residence

		MUFG:
		7-1 Marunouchi 2-chome, Chiyoda-ku
		Tokyo 100-8330, Japan

		BTMU:
		7-1 Marunouchi 2-chome, Chiyoda-ku
		Tokyo 100-8388, Japan

		MUTB:
		4-5 Marunouchi 1-chome, Chiyoda-ku
		Tokyo 100-8212, Japan

		MUSHD:
		5-2 Marunouchi 2-chome, Chiyoda-ku
		Tokyo 100-0005, Japan

		MUMSS:
		5-2 Marunouchi 2-chome, Chiyoda-ku
		Tokyo 100-0005, Japan

		MUAM:
		4-5 Marunouchi 1-chome, Chiyoda-ku
		Tokyo 100-8212, Japan

Page 10 of 26

CUSIP No. 00762U200

		KC:
		3-2 Otemachi 1-chome, Chiyoda-ku
		Tokyo 100-0004, Japan

		KAM:
		1-1 Marunouchi 3-chome, Chiyoda-ku
		Tokyo 100-0005, Japan

	(c)	Citizenship

		Not applicable.

	(d)	Title of Class of Securities

		Common Stock

	(e)	CUSIP Number

		00762U200

ITEM 3		If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

	MUFG:	(a)	[ ]	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

		(b)	[ ]	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

		(c)	[ ]	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

		(d)	[ ]	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

		(e)	[ ]	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

		(f)	[ ]	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

		(g)	[ ]	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

		(h)	[ ]	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

		(i)	[ ]	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

		(j)	[√]	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);

		(k)	[ ]	Group, in accordance with § 240.13d-1(b)(1)(ii)(K).

		If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: Parent holding company

	BTMU:	(a)	[ ]	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

		(b)	[ ]	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

Page 11 of 26

CUSIP No. 00762U200

	(c)	[ ]	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

	(d)	[ ]	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

	(e)	[ ]	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

	(f)	[ ]	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

	(g)	[ ]	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

	(h)	[ ]	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

	(i)	[ ]	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

	(j)	[√]	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);

	(k)	[ ]	Group, in accordance with § 240.13d-1(b)(1)(ii)(K).

	If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: Bank

MUTB:	(a)	[ ]	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

	(b)	[ ]	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

	(c)	[ ]	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

	(d)	[ ]	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

	(e)	[ ]	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

	(f)	[ ]	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

	(g)	[ ]	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

	(h)	[ ]	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

	(i)	[ ]	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

	(j)	[√]	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);

	(k)	[ ]	Group, in accordance with § 240.13d-1(b)(1)(ii)(K).

	If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: Bank

Page 12 of 26

CUSIP No. 00762U200

MUSHD:	(a)	[ ]	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

	(b)	[ ]	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

	(c)	[ ]	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

	(d)	[ ]	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

	(e)	[ ]	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

	(f)	[ ]	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

	(g)	[ ]	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

	(h)	[ ]	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

	(i)	[ ]	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

	(j)	[√]	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);

	(k)	[ ]	Group, in accordance with § 240.13d-1(b)(1)(ii)(K).

	If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: Broker-dealer

MUMSS:	(a)	[ ]	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

	(b)	[ ]	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

	(c)	[ ]	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

	(d)	[ ]	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

	(e)	[ ]	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

	(f)	[ ]	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

	(g)	[ ]	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

	(h)	[ ]	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

	(i)	[ ]	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

	(j)	[√]	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);

	(k)	[ ]	Group, in accordance with § 240.13d-1(b)(1)(ii)(K).

	If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: Broker-dealer

Page 13 of 26

CUSIP No. 00762U200

MUAM:	(a)	[ ]	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

	(b)	[ ]	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

	(c)	[ ]	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

	(d)	[ ]	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

	(e)	[ ]	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

	(f)	[ ]	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

	(g)	[ ]	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

	(h)	[ ]	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

	(i)	[ ]	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

	(j)	[√]	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);

	(k)	[ ]	Group, in accordance with § 240.13d-1(b)(1)(ii)(K).

	If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: Investment adviser

KC:	(a)	[ ]	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

	(b)	[ ]	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

	(c)	[ ]	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

	(d)	[ ]	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

	(e)	[ ]	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

	(f)	[ ]	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

	(g)	[ ]	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

	(h)	[ ]	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

	(i)	[ ]	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

Page 14 of 26

CUSIP No. 00762U200

	(j)	[√]	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);

	(k)	[ ]	Group, in accordance with § 240.13d-1(b)(1)(ii)(K).

	If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: Broker-dealer

KAM:	(a)	[ ]	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

	(b)	[ ]	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

	(c)	[ ]	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

	(d)	[ ]	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

	(e)	[ ]	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

	(f)	[ ]	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

	(g)	[ ]	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

	(h)	[ ]	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

	(i)	[ ]	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

	(j)	[√]	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);

	(k)	[ ]	Group, in accordance with § 240.13d-1(b)(1)(ii)(K).

	If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: Investment adviser

ITEM 4	Ownership

	Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

	For MUFG

	(a)	Amount beneficially owned:	17,577,031

	(b)	Percent of class:	10.11%

	(c)	Number of shares as to which the person has:

		(i) Sole power to vote or to direct the vote:	17,577,031

		(ii) Shared power to vote or to direct the vote:	-0-

		(iii) Sole power to dispose or to direct the disposition of:	17,577,031

		(iv) Shared power to dispose or to direct the disposition of:	-0-

Page 15 of 26

CUSIP No. 00762U200

For BTMU

(a)	Amount beneficially owned:	475,732

(b)	Percent of class:	0.27%

(c)	Number of shares as to which the person has:

	(i) Sole power to vote or to direct the vote:	475,732

	(ii) Shared power to vote or to direct the vote:	-0-

	(iii) Sole power to dispose or to direct the disposition of:	475,732

	(iv) Shared power to dispose or to direct the disposition of:	-0-

For MUTB

(a)	Amount beneficially owned:	9,200,800

(b)	Percent of class:	5.29%

(c)	Number of shares as to which the person has:

	(i) Sole power to vote or to direct the vote:	9,200,800

	(ii) Shared power to vote or to direct the vote:	-0-

	(iii) Sole power to dispose or to direct the disposition of:	9,200,800

	(iv) Shared power to dispose or to direct the disposition of:	-0-

For MUSHD

(a)	Amount beneficially owned:	3,951,779

(b)	Percent of class:	2.27%

(c)	Number of shares as to which the person has:

	(i) Sole power to vote or to direct the vote:	3,951,779

	(ii) Shared power to vote or to direct the vote:	-0-

	(iii) Sole power to dispose or to direct the disposition of:	3,951,779

	(iv) Shared power to dispose or to direct the disposition of:	-0-

For MUMSS

(a)	Amount beneficially owned:	3,951,779

(b)	Percent of class:	2.27%

(c)	Number of shares as to which the person has:

	(i) Sole power to vote or to direct the vote:	3,951,779

	(ii) Shared power to vote or to direct the vote:	-0-

	(iii) Sole power to dispose or to direct the disposition of:	3,951,779

	(iv) Shared power to dispose or to direct the disposition of:	-0-

For MUAM

(a)	Amount beneficially owned:	3,669,400

(b)	Percent of class:	2.11%

(c)	Number of shares as to which the person has:

Page 16 of 26

CUSIP No. 00762U200

	(i) Sole power to vote or to direct the vote:	3,669,400

	(ii) Shared power to vote or to direct the vote:	-0-

	(iii) Sole power to dispose or to direct the disposition of:	3,669,400

	(iv) Shared power to dispose or to direct the disposition of:	-0-

For KC

(a)	Amount beneficially owned:	42,220

(b)	Percent of class:	0.02%

(c)	Number of shares as to which the person has:

	(i) Sole power to vote or to direct the vote:	42,220

	(ii) Shared power to vote or to direct the vote:	-0-

	(iii) Sole power to dispose or to direct the disposition of:	42,220

	(iv) Shared power to dispose or to direct the disposition of:	-0-

For KAM

(a)	Amount beneficially owned:	237,100

(b)	Percent of class:	0.14%

(c)	Number of shares as to which the person has:

	(i) Sole power to vote or to direct the vote:	237,100

	(ii) Shared power to vote or to direct the vote:	-0-

	(iii) Sole power to dispose or to direct the disposition of:	237,100

	(iv) Shared power to dispose or to direct the disposition of:	-0-


ITEM 5	Ownership of Five Percent or Less of a Class

	Not applicable.

ITEM 6	Ownership of More than Five Percent on Behalf of Another Person

	Not applicable.

ITEM 7	Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company or Control Person

	As of December 31, 2012, MUFG beneficially owns 17,577,031 shares of the issuer indirectly through its subsidiaries as follows: BTMU holds 475,732 shares; MUTB holds 9,200,800 shares; MUSHD holds 3,951,779 shares (indirectly through a subsidiary, MUMSS); MUAM holds 3,669,400 shares; KC holds 42,220 shares; and KAM holds 237,100 shares.

ITEM 8	Identification and Classification of Members of the Group

	Not applicable.

ITEM 9	Notice of Dissolution of Group

	Not applicable.

Page 17 of 26

CUSIP No. 00762U200

ITEM 10	Certifications

	By signing below the filers certify that, to the best of their knowledge and belief, (i) the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, and (ii) the foreign regulatory schemes applicable to parent holding companies, banks, broker-dealers and investment advisers, respectively, are substantially comparable to the regulatory schemes applicable to the functionally equivalent U.S. institutions. The filers also undertake to furnish to the Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D.

Page 18 of 26

þ :	Rule 13d-1(b)

o :	Rule 13d-1(c)

o :	Rule 13d-1(d)

	February 1, 2013


	Mitsubishi UFJ Financial Group, Inc.


	By:	/s/ Tadashi Yamamoto

	Name:	Tadashi Yamamoto

	Title:	Senior Manager, Credit & Investment Management Division

	February 1, 2013


	The Bank of Tokyo-Mitsubishi UFJ, Ltd.


	By:	/s/ Tadashi Yamamoto

	Name:	Tadashi Yamamoto

	Title:	Chief Manager, Credit & Investment Management Division

	February 1, 2013


	Mitsubishi UFJ Trust and Banking Corporation


	By:	/s/ Eiji Ihori

	Name:	Eiji Ihori

	Title:	General Manager of Assets Planning Division

	February 1, 2013


	Mitsubishi UFJ Securities Holdings Co., Ltd.


	By:	/s/ Tetsuya Niimi

	Name:	Tetsuya Niimi

	Title:	General Manager, Corporate Planning Division

1	NAME OF REPORTING PERSON Mitsubishi UFJ Financial Group, Inc.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Tokyo, Japan

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 17,577,031
	6	SHARED VOTING POWER -0-
	7	SOLE DISPOSITIVE POWER 17,577,031
	8	SHARED DISPOSITIVE POWER -0-

1	NAME OF REPORTING PERSON The Bank of Tokyo–Mitsubishi UFJ, Ltd.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Tokyo, Japan

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 475,732
	6	SHARED VOTING POWER -0-
	7	SOLE DISPOSITIVE POWER 475,732
	8	SHARED DISPOSITIVE POWER -0-

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 9,200,800
	6	SHARED VOTING POWER -0-
	7	SOLE DISPOSITIVE POWER 9,200,800
	8	SHARED DISPOSITIVE POWER -0-

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 3,951,779
	6	SHARED VOTING POWER -0-
	7	SOLE DISPOSITIVE POWER 3,951,779
	8	SHARED DISPOSITIVE POWER -0-

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 3,669,400
	6	SHARED VOTING POWER -0-
	7	SOLE DISPOSITIVE POWER 3,669,400
	8	SHARED DISPOSITIVE POWER -0-

1	NAME OF REPORTING PERSON kabu.com Securities Co., Ltd.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP	(a) o (b) o
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION Tokyo, Japan

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5	SOLE VOTING POWER 42,220
	6	SHARED VOTING POWER -0-
	7	SOLE DISPOSITIVE POWER 42,220
	8	SHARED DISPOSITIVE POWER -0-

	February 1, 2013


	Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.


	By:	/s/ Hitoshi Kawai

	Name:	Hitoshi Kawai

	Title:	General Manager, Corporate Planning Division

	February 1, 2013


	Mitsubishi UFJ Asset Management Co., Ltd.


	By:	/s/ Katsutoshi Edamura

	Name:	Katsutoshi Edamura

	Title:	General Manager of Risk Management Division

	February 1, 2013


	kabu.com Securities Co., Ltd.


	By:	/s/ Takeshi Amemiya

	Name:	Takeshi Amemiya

	Title:	General Manager of Corporate Administration

	February 1, 2013


	KOKUSAI Asset Management Co., Ltd.


	By:	/s/ Takeshi Dohi

	Name:	Takeshi Dohi

	Title:	General Manager, Investment Management Planning Dept.