The Law Office of Katsuhiro Arai is a specialized intellectual property law firm based in California, offering expert legal services in both U.S. and Japanese patent and trademark practices. Founded in 2008 by Katsuhiro Arai, the firm leverages over three decades of combined experience, including prior roles at leading IP firms, to provide high-quality, cost-effective representation primarily for companies.
Fully fluent in English and Japanese, the firm acts as an extended IP division for its clients, facilitating seamless communication and understanding between U.S. and Japanese legal practices. Their mission centers on providing tailored, ethical services with a focus on client success, particularly in technology-driven industries such as semiconductor fabrication, communications, pharmaceuticals, and chemistry-related innovations.
Services Offered
- Patent prosecution
- Patent application drafting
- Patentability studies
- Infringement studies
- Trademark procurement
- Trademark maintenance
- Trademark searches
- Legal consulting
- Invention mining
- Rights enforcement
- Licensing
- Foreign and domestic trademark services
- Acting as extended IP division for client companies
- Collaboration with foreign associates and other IP firms
The firm serves clients primarily in technology and business sectors, with a strong focus on companies requiring cross-border IP strategy between the U.S. and Japan. Services are available in both English and Japanese, accommodating clients’ language preferences and legal needs in both jurisdictions.
