* Jim DeNaut named new head of IB in United States
* Schiffman had more than 20 years experience in Nomura, Lehman (Adds details, background)
HONG KONG, March 29 (Reuters) - Glenn Schiffman, head of U.S. investment banking at Nomura Holdings Inc has decided to resign from his post and is leaving the firm, Nomura said in a statement.
Nomura has named Jim DeNaut as the new head, the statement said.
Schiffman worked at Lehman Brothers for 17 years before Japan's biggest brokerage acquired parts of Lehman in September 2008 when it went bankrupt.
The former media banker was named head of U.S. investment banking in January last year with a mandate to build the business.
DeNaut joined Nomura in August 2010 from Deutsche Bank
Prior to that, DeNaut worked at Morgan Stanley as a managing director of the global energy group.
DeNaut will report locally to Naoki Matsuba, president & CEO Nomura Holding America Inc., and globally to Hiroyuki Suzuki and William Vereker, joint heads of global investment banking.
Nomura has been building up its U.S. investment banking operations. So far it has chosen not to acquire a local firm to give its expansion a boost, opting instead for gradual growth by hiring individual bankers. (Reporting by Denny Thomas; Editing by Chris Lewis and Jonathan Hopfner)