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European Patent Attorney Trainee

Yasuaki Koshiro

European Patent Attorney Trainee

Japanese Patent Attorney

Chemist

Mr. Koshiro has been providing advice on international patent searches, analysis, filings, prosecution, appeals, and oppositions for companies of various sizes, ranging from startups to large corporations. He has comprehensive professional experience, particularly in cases related to patent filing and prosecution.

His primary areas of technical expertise include Information and Communication Technology (ICT), electronics, mechanics, and chemistry. With a background as a systems engineer, he holds a particularly strong technical foundation in ICT.

Additionally, he offers advice on various comparative aspects of patent practices, especially focusing on European and Japanese systems, drawing on his extensive experience in international patent cases.

F

E

since 2025
European Patent Attorney Trainee and Japanese Patent Attorney at Maiwald
2022 - 2024
European Patent Attorney Trainee and Japanese Patent Attorney at an IP firm in Germany
2006 - 2022
Japanese Patent Attorney and Trainee at IP firms in Japan
2027
IP research assistant at Siemens Technology Accelerator in Germany
1998 - 2005
Systems Engineer at Software companies

2017 - 2018
Studied intellectual property and competition law (LL.M.) at the Munich Intellectual Property Law Center in Max Planck Institute
2012
Admitted to practice as Japanese Patent Attorney
1994 - 1998
Studied applied chemistry at Saitama University

  • Patent prosecution and portfolio management
  • Filing strategies and drafting of applications
  • Freedom-to-operate and validity opinions
  • Opposition and nullity proceedings

  • English
  • Japanese