Aki Koshizuka | Tokyo | Hogan Lovells

Aki Koshizuka

Counsel Intellectual Property, Media, and Technology


Japanese, English, Spanish

Koshizuka Aki

Aki Koshizuka
Koshizuka Aki
  • Overview
  • Experience
  • Credentials
  • Insights and events

Aki has been involved in multijurisdictional trade mark clearance searches and portfolio management of over 130 countries. She also advises on complex IP conflicts such as oppositions, cancellation/invalidation actions, domain name disputes, negotiations, and anti-counterfeiting strategies. 

Aki joined Hogan Lovells Tokyo office in 2009. During that time she also worked in our Alicante and London offices between 2012 and 2015. In our Tokyo office Aki currently works with many well-known and innovative brand owners to proactively protect and enforce their trademarks and designs globally.

Aki is registered as a UK Trade Mark Attorney and holds Higher Courts Litigation and Advocacy qualifications accredited by the UK Intellectual Property Regulation Board.  She has extensive experience in all matters relating to prosecution and enforcement of European trade marks. 

Representative experience

Acting for a multinational conglomerate corporation in relation to a numbers of direct negotiations with counter parties, amicably settling cases in UK, Italy, France, Denmark, Benelux, Bulgalia etc. and prevailing oppositions / invalidation actions in Spain, France, UK, Germany, Switzerland and the EU.

Acting for a well-known Japanese online market provider in relation to its global trademark portfolio management in over 50 jurisdictions and domain name dispute resolutions at WIPO and several other IP Arbitration Centers. Prevailing oppositions in Turkey and UK.  

Acting for a Japanese electronics company in relation to trade mark infringement proceedings in Germany and achieved EU-wide injunctions.

Acting for a leading Japanese telecommunications company in relation to negotiation and conclusion of coexistence agreements in Spain, Germany, France, UK, US and the EU. 


  • Pg. Cert. (Intellectual Property Law and Practice), Queen Mary University of London, with distinction
  • B.A., Sophia University, with honors
  • UK Intellectual Property Regulation Board (IPReg)


Notable practitioner in Japan

Managing Intellectual Property IP Stars

Leading individual in Japan for Prosecution and Strategy

World Trademark Review 1000

Recommended in Intellectual Property

The Legal 500 Asia-Pacific