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Intellectual property, labour, general corporate and cross-border transactions.
IP and labour counsel with extensive experience advising European and U.S. industries and expatriate executives at multinational companies. Matsunagas area of IP practice includes patent, trade mark, unfair competition and trade secrets. Matsunaga has established unique and effective anti-counterfeiting practices that have gained great favour with prominent luxury brands, as well as cosmetic, sports and emerging fashion brands. Matsunaga also developed his advocacy skills in dismissal cases involving senior executives at multinational companies, which are rarely protected by local labour laws. Matsunaga has enjoyed a great deal of success in concluding highly favourable out-of-court settlements for his clients.
IPtrust Inc 1993-2007; corporate auditor Bruker AXS 2011 to date; corporate auditor Bruker Biospin 2011 to date; corporate auditor Bruker Daltonics 2011 to date; corporate auditor Bruker Optics 2011 to date; visiting scholar University of Washington School of Law 2013-2014; designated legal counsel Austrian Embassy in Tokyo 2014 to date. Current directorships: counsel. Publications of note: ‘Stacking No More an Issue? – Trends in U.S. Judicial RAND Royalty Decisions ‘ (July issue of ‘Patent News ‘ 2015, Research Institute of Economy, Trade and Industry); ‘Overview of Patent Infringement Litigation Proceedings and FRAND-Related Issues in Germany ‘ (March issue of ‘Patent News ‘ 2015, Research Institute of Economy, Trade and Industry); ‘Determining availability of injunctive relief based on standard essential patents: a study of CJEU opinions given Nov. 20, 2014 ‘ (December issue of ‘Patent News ‘ 2014, Research Institute of Economy, Trade and Industry); ‘Study of US Court Decision(s) Recognizing FRAND Royalty ‘ (October issue of ‘Patent News ‘ 2014, Research Institute of Economy, Trade and Industry); ‘Apple v. Samsung: Summary and Analysis of Opinions Submitted to IP High Court Grand Panel ‘ (LES JAPAN NEWS Vol.55 No.3, September, 2014, coauthor); ‘Apple v. Samsung: Overview of Decisions and Judgment of IP High Court Grand Panel ‘ (July issue of ‘Patent News ‘ 2014, Research Institute of Economy, Trade and Industry); ‘Study of Two US Court Decisions Recognizing RAND Royalty for SEP and Tokyo District Court Decision Denying Damage Claim Based on SEP ‘ (CIPIC Journal 2013, Customs Intellectual Property Information Center).
IP division of Tokyo Bar Association; research group of Standard Essential Patent at Ministry of Economy, Trade and Industry; brand management committee of Japan Trademark Association; LESJ (Licensing Executives Society Japan); IP Law Network for Lawyers; INTA (International Trademark Association).
Waseda University (1993 LL.B.); The Legal Training and Research Institute of the Supreme Court of Japan (2008)
Offshore fishing, sailing, and tennis.
Japan: Intellectual property
Independent local firms
Within: Independent local firms
Patent prosecutions, trade mark enforcement and design registration are key strengths at Sonderhoff & Einsel Law and Patent Office. Managing partner Felix-Reinhard Einsel is noted for electrical engineering patent litigation and Shogo Matsunaga stands out for trade mark litigation and licensing, among other areas. Hiroshi Morita joined the team from Astellas Pharma, while Hiroyasu Ninomiya, Junichi Maekawa and Rui Ueshima made partner.