Kohshi Arnold Itagaki is a senior associate in the Corporate & Securities practice in Mayer Brown's Tokyo office and focuses on a wide variety of cross-border transactions including M&A, projects and project construction, strategic alliances, joint ventures and other corporate matters. He was previously an associate at Mayer Brown’s New York office.

Spoken Languages

  • English
  • Japanese


  • A Japanese financial sponsor in its equity investment in an offshore wind project in the United Kingdom.           
  • A Japanese trading company in its investment in multiple power plant projects in the Middle East.
  • A Japanese industrial company in the sale of certain assets and equity of its small-block diesel engine business globally.
  • A Japanese energy company in its investment in two power plants in the United States.
  • A Japanese media company as lead investor in a Singaporean AI-powered restaurant management solutions provider. 
  • An American technology company in its capital alliance with a Japanese consumer electronics manufacturer.
  • A Japanese chemicals company on its $1.1 billion acquisition of an industrial company.
  • A portfolio company of a private equity firm in the sale of its technical solutions business.
  • A portfolio company of a private equity firm in the acquisition of an aviation data company.
  • An insurance company in the sale of shares of one of its subsidiaries pursuant to a winding-up and liquidation.
  • An insurance company on a $1.5 billion reinsurance agreement covering certain asbestos and environmental liability exposures.
  • A cable television provider in its corporate restructuring and $2.15 billion initial public offering on the New York Stock Exchange.


Georgetown University Law Center, JD

Rutgers University, BA


  • New York
  • Not admitted in Japan


  • US District Court for the Southern District of New York
  • US District Court for the Eastern District of New York