FORM 6-K

                       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


                          For the month of April, 2005

                         Commission File Number 1-15236

                              Advantest Corporation
                 (Translation of Registrant's Name Into English)

                         Shin Marunouchi Center Building
                                1-6-2, Marunouchi
                                   Chiyoda-ku
                                 Tokyo 100-0005
                                      Japan
                    (Address of Principal Executive Offices)


     Indicate by check mark whether the registrant files or will file annual
reports under cover of 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 the registrant by furnishing the information
contained in this Form 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):______





Materials Contained in this Report:

1.   English translation of the Annual Japanese-language Financial Digest for
     the fiscal year ended March 31, 2005, as filed with the Tokyo Stock
     Exchange on April 26, 2005.





                                   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.




                              Advantest Corporation



                              By:  /s/ Hitoshi Owada
                                 --------------------------------------
                                 Name:  Hitoshi Owada
                                 Title: Director and
                                        Managing Executive Officer


Date:  April 26, 2005