Dr. Shigeo Yamaguchi

Rechtsanwalt (Attorney-at-Law), Düsseldorf Office

Curriculum Vitae

  • Studies at Ludwig-Maximilians University Munich and Albert-Ludwigs University Freiburg
  • 2000 – 2005 Haarmann, Hemmelrath & Partner
  • Since 2006 Partner with ARQIS Rechtsanwälte (Founding Partner)


  • Respected ranking publications and business magazines regularly name Dr. Shigeo Yamaguchi as a highly recommended lawyer in the fields of M&A and corporate law. These include JUVE Handbook, Legal500 and Wirtschaftswoche. Chambers names Dr. Shigeo Yamaguchi as a “foreign expert” for legal advice with regard to Japan.
  • In these publications clients praise him for being “highly energetic, industrious and focused on our goals”, competitors say he is “unbeatable in the Japanese business”. He is known for his “a broad network in Japan”.
  • Azur, a career magazine for lawyers, named Dr. Shigeo Yamaguchi as “one of the key figures in the German-Japanese legal consulting scene”.

Recent Experience

  • Sekisui Chemical on the acquisition of a majority shareholding in CPT Chevalier Pipe Technologies GmbH and its subsequent acquisition of the remaining stake
  • Sumitomo Electric Industries on
    • the acquisition of Heinrich Thulesius GmbH & Co. KG, a distributor of electric wires and cables
    • the acquisition of Cloyes Europe GmbH, a sintered component manufacturer
  • Chori on the participation in Eurosol GmbH
  • IHI Corporation on the acquisition of assets for the construction of a power plant in Lünen from A-Tec-subsidiary AE&E Inova GmbH
  • NTT DoCoMo on the public takeover of the shares in net mobile AG
  • Kitz Corporation on the acquisition of Perrin GmbH
  • SGI Japan on the acquisition and subsequent sale of D.A.V.I.D. GmbH
  • Toray Industries on the participation in ACE Advanced Composite Engineering GmbH
  • Central Glass on the acquisition of a production site for active pharmaceutical ingredients from Girindus AG
  • TOTO on the acquisition of Pagette Gmb
  • Toda Kogyo on the acquisition of the battery business from H.C. Starck
  • Link Theory (Fast Retailing Group) on the acquisition and the subsequent sale of Rosner
  • Takuma on the acquisition of the power plant division of Metz Anlagentechnik GmbH


Dr. Shigeo Yamaguchi regularly publishes expert papers on M&A and corporate law in books and highly regarded law journals. The arcticles often deal with German-Japanese business, e.g. his publication “Defense measures for listed companies against hostile take-overs in Germany and Japan“ (“Abwehrmaßnahmen börsennotierter Aktiengesellschaften gegen feindliche Übernahmeangebote in Deutschland und Japan”), Carl Heymanns Verlag, 2005


  • M&A und Joint Ventures in Deutschland: Japanische Industrie- und Handelskammer zu Düsseldorf, Japan Club München, Deutsche Industrie- und Handelskammer in Japan, Inhouse-Seminar


  • Legal Committee of the Japanese Chamber of Industry and Commerce, Düsseldorf
  • German-Japanese Association of Jurists (DJJV)
  • Deutsch-Japanischer Wirtschaftskreis (DJW)


  • German
  • Japanese
  • English


Breite Straße 28
40213 Düsseldorf

Phone: +49 211 13069-155

Fax: +49 211 13069-099

shigeo.yamaguchi@arqis.comvCard download