NEW YORK — J.P. Morgan Chase & Co. has combined Chase Capital Partners and J.P. Morgan Capital, the private equity divisions of the company’s predecessors, to form J.P. Morgan Partners.

The new entity has $24 billion of assets and 150 investment professionals. Last year, as separate divisions, they invested $3.5 billion, the banking company said Monday.

“This merger, as well as Chase’s recent acquisitions of Hambrecht & Quist, Flemings, and The Beacon Group, creates an even stronger global integrated network,” said Jeffrey Walker, the managing partner at J.P. Morgan Partners who was the managing partner of Chase Capital.

J.P. Morgan Chase & Co. formed Dec. 31 and has been shuffling people and operations since then.

On Friday it named Daniel H. Case 3d to head up global investment banking for a number of key areas, including telecommunications, media and technology, and life sciences. Mr. Case, 42, hails from Chase H&Q, the San Francisco investment banking arm operated by J.P. Morgan Chase & Co.’s predecessor bank, Chase Manhattan Corp.

Mr. Case will be based in San Francisco and will also head up investment banking operations on the West Coast.

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