EXHIBIT 4.31

NOTARIAL DEEDPURCHASE AND TRANSFER AGREEMENT

between

INFINEON
Technologies AG
Munich

represented
by its attorney-in-fact Stephan Reiter,

("INFINEON")

and

OSRAM
GmbH
Munich

represented
by its attorney-in-fact Klaus Hornung,

("OSRAM")

hereby
agree as follows:

Preamble

The
limited partnership OSRAM Opto Semiconductors GmbH & Co. OHG, with its corporate seat in Regensburg ("OHG"), is registered in the commercial register of the local court of Regensburg under
the number HRA 6036. The currently valid partnership agreement is dated December 23, 1998, and was last amended on February 10, 2000.

OSRAM
Unternehmensverwaltung GmbH, with its corporate seat in Munich (the "General Partner"), is registered in the commercial register of the local court of Munich under the number HRB 123984. Its
currently valid corporate charter is dated December 23, 1998, and was last amended on February 10, 2000.

INFINEON
holds EUR 2,239,300 in the partnership capital of the OHG. OSRAM holds EUR 2,330,700 in the partnership capital of the OHG. The capital holdings have been fully paid in by cash
or contribution in kind. The General Partner holds no shares in the capital of the OHG.

In
addition, INFINEON holds an interest of EUR 17,150 in the EUR 35,000 aggregate nominal capital of the General Partner. OSRAM holds an interest of EUR 17,850 in the nominal
capital of the General Partner. The nominal capital of the General Partner consists of cash contributions. The cash contributions have been fully paid in.

§1
Sale and Transfer of the Shares in the OHG

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§2
Sale and Transfer of the GmbH Shares of the General Partner

§3
Payment of Purchase Price

The
purchase price due in accordance with §1 para. 4 and §2 para. 3 shall be payable as of the Effective Date. The payment shall be made to Account
No. 153087200 with Commerzbank Munich (BLZ 700 400 41).

§4
Warranty, Liability

§5

INFINEON
consents to the continued use of the business name.

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§6

OSRAM
and INFINEON shall make arrangements between themselves to each bear half of any potential acquisition taxes incurred by the OHG in connection with the transfer of the interests in the OHG or
the GmbH. To the extent that any tax liabilities in accordance with the previous sentence arise from actions or omissions that are in the sole power of one of the parties, such party shall bear such
tax liability itself and shall hold the other party, the OHG and the GmbH harmless therefrom. Tax benefits to any of the parties that result from such tax liabilities will be appropriately offset.
Corporation tax and solidarity surcharge shall be unlimitedly borne by the party on which they fall.

§7
Arbitration

§8
Miscellaneous Provisions

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§9
Execution

Each
party shall receive one original and two certified copies of this document; the General Partner and the OHG, as well as the partners' responsible tax authorities in Munich and Regensburg, shall
each receive one certified copy.

Zurich,
August 14, 2001

|/s/STEPHAN REITERINFINEON Technologies AG |  | /s/KLAUS HORNUNGOSRAM Gesellschaft mit beschränkter Haftung
|----------------------------------------- |  | -----------------------------------------------------------

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The foregoing document captures the intent of the parties as explained to me. It has been read aloud to Stephan Reiter and Klaus Hornung as representatives of the two contracting parties, acknowledged
by them as correct and as corresponding to the intent of the parties represented by them, and signed.

Zurich,
August 14, 2001, 14h20

NOTARIAT
HOTTINGEN-ZÜRICH

Hans
Rudolf Sulzer, Notary

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