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• admitted in Japan, 1987; Illinois (Foreign Legal Consultant), 1994; New York, 1995
• Daini-Tokyo Bar Association
• Chicago Bar Association
• New York State Bar Association
• American Bar Association
• Director of The Licensing Executives Society Japan
• Lecturer of International Transaction Laws at Tokai University, 1996-1998
• American Intellectual Property Law Association

• "Very Basic Aspects of Business Law Practice-IP Law-" December 2011
• "Very Basic Aspects of Business Law Practice-IP Law-" October 2011
• "Practice on the Enforcement of the Antitrust Laws by the U.S. Department of Justice" 2010
• "The Defense Practice for the Enforcement of the U.S. Antitrust Laws" 2009
• "License Business Practice" 2009
• "The Relationship between the Judgment Invalidating Patent Claims at an Appellate Court of Patent Infringement Lawsuit and the Decision of Correcting the Claims Rendered after the Judgment." Bimonthly Journal of A.I.P.P.I. Vol.33 No.6, 2008 (Co-Author)
• "Theory and Practice of Patent Infringement Litigation in the United States" 2007
• "Enactment of Law Concerning the Application of Laws in General and Its Influence in Practice" 2006
• "Patent Infringement Litigation" 2003 (Co-Author)
• "Internet Laws 4th Edition" 2003
• "Impact of Violation of the U.S. Antitrust Law" 2002
• "The Ending of Violation of The U.S. Antitrust Law by Japanese Corporations" 2002
• "Domain Name Dispute, the Recent Cases" 2002
• "Sony Bank Decision" 2002
• "Patent Law and Utility Model Law" 2002 (Co-Author)
• "Recent Situation Relating to the Extraterritorial Application of the U.S. Antitrust Law and its Background" 1998
• "Extraterritorial Application of Sherman Act on Criminal Penalty" 1998
• "Extraterritorial Application of the U.S. Antitrust Law on Price Fixings in Japan" 1997
• "Participation in a Board Meeting by an Interested Chairman" 1997
• "The New Product Liability Act in the United States" 1995
• "A New Joint Venture Vehicle for Japanese Investment in the U.S.: The Limited Liability Company" 1995
• "Opinion on the Delaware Supreme Court on Paramount v. Time-Warner Case" 1990
• "Defense Tactics in M&A" 1990
• "Failure of The Merger of UAL And The Legal Fees" 1990
• "Decision of The Delaware Supreme Court on Rights of Shareholders" 1989
• "Handling of Insider Trading Regulations" 1987
• "Insider Trading Regulations and Legal Services" 1988

• "Summary and evaluation of risk occurred by violations of US antitrust laws" Financial Facsimile News, August 26, 2011
• "IP Litigation: Global Best Practices (A Conference of ABA Annual Meeting)" American Bar Association, August 9, 2008
• "California International Arbitration Conference" California Bar Association, February 28, 2008
• "IP Trends in the United States: Current State of IP Case Law, Patent Reform and Patent Valuation" Intellectual Property Association of Japan, June 17, 2006