Patents
Applications, PCT national phase entry, office actions, appeals, oppositions, invalidations, and utility models.
Cita-Cita Patent Attorney Corporation
Your IP Partner
in Japan.
Clear communication, practical advice, and dependable support for patents, trademarks, and designs in Japan.
Quick Access
Welcome to Cita-Cita
Japanese IP Support for Overseas Professionals
We assist overseas IP firms and international companies with intellectual property matters in Japan. Our support combines clear English communication, technical understanding, and a practical approach to your client’s objectives.
Our services
IP Services in Japan
Trademarks
Searches and applications, office actions, renewals, recordals, and invalidation actions.
Designs
Applications and prosecution, design searches, Japanese design options, and Hague designations.
IP Support
Freedom-to-operate searches, prior art searches, validity opinions, consultations, and IP strategy.
Why Cita-Cita
Reliable Support for Your Japanese IP Matters
Clear Communication
We explain Japanese IP issues and available options in straightforward English.
Responsive Service
We keep you informed and coordinate the next steps throughout each matter.
Technical Understanding
Engineering experience supports our understanding of the technology behind your matter.
Practical Perspective
We consider the technical and commercial objectives alongside Japanese IP practice.
Technical fields
Experience Across a Range of Technologies
Automotive Technology
Fuel cell vehicles, automotive systems, production equipment, and related technologies.
Semiconductors
Power semiconductors, semiconductor manufacturing equipment, and associated processes.
Advanced Materials
Fine ceramics, functional materials, and industrial material technologies.
Industrial Machinery & Automation
Industrial machinery, factory automation, production systems, and mechanical engineering.
Imaging & Medical Devices
Inkjet heads, image-processing technologies, and medical devices.
Business Methods
Business models, information systems, and software-related inventions.
Our professional
Engineering Insight. IP Experience. Business Perspective.
Managing Partner Takaaki Hayashi combines a mechanical engineering background with more than two decades of experience in intellectual property practice.
His experience in mechanical design, corporate R&D, in-house IP, and business management provides a practical foundation for supporting clients and overseas counsel.
Our approach
Reliable. Responsive. Together.
We work as an extension of your team, combining your knowledge of the client with our understanding of Japanese IP practice.
Instructions & Review
We review your instructions, relevant documents, objectives, and deadlines.
Scope & Confirmation
We confirm the requested work, costs, required information, and proposed approach.
Action in Japan
We prepare filings, coordinate translations, and handle the agreed procedures.
Reporting & Follow-up
We report developments in English and coordinate decisions and next steps.
Get in touch
How Can We Assist You in Japan?
Send us a brief outline of your matter, the assistance required, and any relevant deadline.