Form 6-K


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D. C. 20549

                                    FORM 6-K


                        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: 001-06439


                                SONY CORPORATION
                 (Translation of registrant's name into English)

             7-35 KITASHINAGAWA 6-CHOME, SHINAGAWA-KU, TOKYO, JAPAN

                    (Address of principal executive offices)

          The registrant files annual reports under cover of Form 20-F.



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 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):82-______



                                   SIGNATURE


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.


                                                            SONY CORPORATION
                                                              (Registrant)


                                         By:  /s/  Katsumi Ihara    
                                                 (Signature)

                                             Katsumi Ihara
                                             Executive Deputy President, 
                                             Group Chief Strategy Officer and
                                             Chief Financial Officer

Date: April 27, 2005

List of materials

Documents attached hereto:


i) Press Release announcing Stock Options (Stock Acquisition Rights)   



                                                               April 26, 2005
                                                                   No. 05-022E
                                                                  
Stock Options (Stock Acquisition Rights)

Sony Corporation (the "Corporation") resolved at a meeting of its Board of
Directors today to propose an agenda asking for authorization to issue the stock
acquisition rights to subscribe for shares of common stock of the Corporation
outlined below, for the purpose of granting stock options, pursuant to Articles
280-20 and 280-21 of the Commercial Code of Japan. The proposal will be made at
its 88th ordinary general meeting of shareholders to be held on June 22, 2005.

1. Reason for Issue of Stock Acquisition Rights to Persons Other Than
   Shareholders without Any Consideration

   The Corporation will issue the stock acquisition rights (the "Stock 
   Acquisition Rights") to subscribe for shares of common stock of the 
   Corporation ("Common Stock") to directors, corporate executive officers and 
   employees of the Corporation and its subsidiaries without any consideration 
   therefor pursuant to the provisions of Articles 280-20 and 280-21 of the 
   Commercial Code of Japan upon the terms outlined below for the purposes of 
   giving directors, corporate executive officers and employees of the 
   Corporation and its subsidiaries an incentive to contribute towards the 
   improvement of the business performance of the Corporation and its group 
   companies (the "Group") and thereby improving such business performance of 
   the Group, by making the economic interest which such directors, corporate 
   executive officers or employees will receive correspond to the business 
   performance of the Corporation.

2. Terms of Issue of Stock Acquisition Rights

(1) Persons to Whom Stock Acquisition Rights Will be Allocated

    Directors, corporate executive officers and employees of the Corporation and
    its subsidiaries.

(2) Aggregate number of Stock Acquisition Rights

    Not exceeding 27,500.

(3) Class and Number of Shares to be Issued or Transferred upon Exercise of
    Stock Acquisition Rights

    Not exceeding 2,750,000 shares of Common Stock.

    The number of shares to be issued or transferred upon exercise of each Stock
    Acquisition Right (the "Number of Granted Shares") shall be 100 shares of 
    Common Stock.

    However, in the case that the Number of Granted Shares is adjusted pursuant 
    to (4) below, the number of shares to be issued or transferred upon exercise
    of the Stock Acquisition Rights shall be adjusted to the number obtained by 
    multiplying the Number of Granted Shares after adjustment by the aggregate 
    number of the Stock Acquisition Rights.

(4) Adjustment of Number of Granted Shares

    In the case that the Corporation splits or consolidates the shares of Common
    Stock, the Number of Granted Shares shall be adjusted in accordance with the
    following formula.

      Number of               Number of               Ratio of split  
      Granted Shares     =    Granted Shares     x    or consolidation    
      after adjustment        before adjustment

    An adjustment above shall be made only with respect to the Number of Granted
    Shares for the Stock Acquisition Rights which have not been exercised at the
    time of the adjustment. Any fraction less than one (1) share resulting from 
    the adjustment shall be disregarded.

(5) Issue Price of Stock Acquisition Rights

    The Stock Acquisition Rights are issued without the payment to the 
    Corporation of any consideration.

(6) Amount to be Paid In per Share to be Issued or Transferred upon Exercise of
    Stock Acquisition Rights

    The amount to be paid in per share to be issued or transferred upon exercise
    of the Stock Acquisition Right (the "Exercise Price") shall be initially as 
    follows.

    1) Stock Acquisition Rights with Exercise Price Denominated in Yen

       The Exercise Price shall be initially the average of the closing prices 
       of Common Stock in the regular trading thereof on the Tokyo Stock 
       Exchange(each the "Closing Price") for the ten (10) consecutive trading 
       days(excluding days on which there is no Closing Price) immediately prior
       to the issue date of the Stock Acquisition Rights (any fraction less than
       one (1)yen arising as a result of such calculation shall be rounded up to
       the nearest one (1) yen); provided, however, that if such calculated 
       price is lower than any of (i) the average of the Closing Prices for the 
       thirty (30)consecutive trading days (excluding days on which there is no 
       Closing Price)commencing forty-five (45) trading days immediately before 
       the day that is immediately after the issue date of the Stock Acquisition
       Rights (any fraction less than one (1) yen arising as a result of such 
       calculation shall be rounded up to the nearest one (1) yen), (ii) the 
       average of the Closing  Prices for the thirty (30) consecutive trading 
       days (excluding days on which there is no Closing Price) commencing 
       forty-five (45) trading days immediately before the date on which the 
       Corporation fixes the Exercise Price (any fraction less than one (1) yen 
       arising as a result of such calculation shall be rounded up to the 
       nearest one (1) yen), or (iii) the Closing Price on the issue date of the
       Stock Acquisition Rights (if there is no Closing Price on such date, the 
       Closing Price on the immediately preceding trading day), the Exercise 
       Price shall be the highest price of (i), (ii) and (iii) above.

    2) Stock Acquisition Rights with Exercise Price Denominated in U.S. Dollars

       The Exercise Price shall be initially the U.S. dollar amount obtained by
       dividing the average of the Closing Prices for the ten (10) consecutive 
       trading days (excluding days on which there is no Closing Price) 
       immediately prior to the issue date of such Stock Acquisition Rights 
       (hereinafter referred to as the "Reference Yen Price") by the average of 
       the exchange rate quotations by a leading commercial bank in Tokyo for 
       selling spot U.S. dollars by telegraphic transfer against yen for such 
       ten 10) consecutive trading days (the "Reference Exchange Rate") (any 
       fraction less than one (1) cent arising as a result of such calculation 
       shall be rounded up to the nearest one (1) cent); provided, however, that
       if the Reference Yen Price is lower than any of (a) the average of the  
       Closing Prices for the thirty (30) consecutive trading days (excluding 
       days on which there is no Closing Price) commencing forty-five (45) 
       trading days immediately before the day that is immediately after the 
       issue date of the Stock Acquisition Rights, (b) the average of the 
       Closing Prices for the thirty (30) consecutive days (excluding days on 
       which there is no Closing Price) commencing forty-five (45) trading days 
       immediately before the date (being the issue date of the Stock 
       Acquisition Rights) on which the Corporation fixes the Exercise Price, or
       (c) the Closing Price on the issue date of the Stock Acquisition Rights 
       (if there is no Closing Price on such date, the Closing Price on the 
       immediately preceding trading day), the Exercise Price shall be the U.S. 
       dollar amount obtained by dividing the highest among (a), (b) and (c) 
       above by the Reference Exchange Rate (any fraction less than one (1) cent
       arising as a result of such calculation shall be rounded up to the 
       nearest one (1) cent).

(7) Adjustment of Exercise Price

    In the case that the Corporation splits or consolidates the shares of Common
    Stock after the issue date of the Stock Acquisition Rights, the Exercise 
    Price shall be adjusted in accordance with the following formula, and any 
    fraction less than one (1) yen or one (1) cent resulting from the adjustment
    shall be rounded up to the nearest one (1) yen or one (1) cent.

    Exercise Price         Exercise Price                        1             
                       =                      x  -------------------------------
    after adjustment       before adjustment     Ratio of split or consolidation
                                                        

    In addition, in the case of a merger with any other company, corporate split
    or capital reduction of the Corporation, or in any other case similar 
    thereto where an adjustment of Exercise Price shall be required, in each 
    case after the issue date of the Stock Acquisition Rights, the Exercise 
    Price shall be appropriately adjusted to the extent reasonable.

(8) Period during Which Stock Acquisition Rights may be Exercised

    The period during which the Stock Acquisition Rights may be exercised will 
    be sometime within the period from the issue date of the Stock Acquisition 
    Rights to the day on which ten (10) years have passed from such issue date, 
    which will be determined by the Board of Directors of the Corporation or the
    Executive Officer to whom the determination has been delegated by a 
    resolution of the Board of Directors of the Corporation.

(9) Conditions for Exercise of Stock Acquisition Rights

    1) Each Stock Acquisition Right may not be exercised in part.

    2) Other conditions for exercise shall be determined by the Board of 
       Directors of the Corporation or the Executive Officer to whom the 
       determination has been delegated by a resolution of the Board of 
       Directors of the Corporation. 

(10) Mandatory Cancellation of Stock Acquisition Rights

     Not applicable.

(11) Restriction on Transfer of Stock Acquisition Rights

     The Stock Acquisition Rights are non-transferable, unless such transfer is
     expressly approved by the Board of Directors of the Corporation.


Note: The issue of the stock acquisition rights mentioned above is subject to
the approval by shareholders on issues of the Common Stock Acquisition Rights to
be obtained at the Corporation's 88th ordinary general meeting of shareholders
scheduled for June 22, 2005. In addition, respective issues of the stock
acquisition rights are further subject to the resolutions of the Board of
Directors or the determination by the Executive Officer to whom the
determination has been delegated by a resolution of the Board of Directors on
the specific terms and conditions of such issues.