Education
B.E., Mechanical Engineering, Ritsumeikan University, 1996.
Our professionals
Technical understanding, practical insight, and clear communication for your IP matters in Japan.

Managing Partner
CEO / Managing Partner
Japanese Patent Attorney
With more than two decades of experience in intellectual property, Takaaki Hayashi provides practical support for overseas firms and their clients in Japan. His approach combines engineering insight, IP experience, and a business perspective.
Professional profile
Before entering private practice, Takaaki Hayashi worked in mechanical design at a semiconductor manufacturing equipment company, in equipment procurement within the research and development division of an automobile manufacturer, and in the intellectual property department of an equipment manufacturer.
This combination of engineering, procurement, and in-house IP experience enables him to understand matters from both technical and business perspectives. His practice includes mechanical engineering, semiconductor manufacturing equipment, automotive technologies, industrial machinery, and factory automation.
He works closely with overseas IP firms and their clients on patent, trademark, and design matters in Japan. His practical training at a law firm in Washington, D.C. informs his approach to clear international communication.
Education & experience
B.E., Mechanical Engineering, Ritsumeikan University, 1996.
Registered as a Japanese Patent Attorney in 2003.
Practical training at a law firm in Washington, D.C., 2007.
Practice & technical fields
Fuel cell vehicles, automotive systems, production equipment, and related technologies.
Power semiconductors, semiconductor manufacturing equipment, and associated processes.
Fine ceramics, functional materials, and industrial material technologies.
Industrial machinery, factory automation, production systems, and mechanical engineering.
Inkjet heads, image-processing technologies, and medical devices.
Business models, information systems, and software-related inventions.
Get in touch
Send us a brief outline of your matter, the assistance required, and any relevant deadline.