Firm profile

MARKS IP LAW FIRM is a boutique intellectual property law firm specializing in all trademark matters with an office in Osaka, Japan. We built on the cornerstones of providing high quality legal services and practical solutions to legal problems, in a cost-effective manner.

With its focus on trademark law and related prosecution and litigation, MARKS IP LAW FIRM is dedicated to providing a personalized, client focused service, offering the highest quality of advice and comprehensive representation to our clients in Japan and internationally.

The firm is actively engaged in prosecution and maintenance services in the areas of trademarks. Our specialized IP counseling covers searches and licensing strategies, and enforcement of trademarks, which can include cease & desist matter, infringement litigation, anti-counterfeiting, implementation of custom procedures, opposition/cancellation proceedings before the JPO and the IP High Court, arbitration, domain disputes and related negotiations.

Our clients shape our work. Their needs are our top priority. In order to maintain trust and confidence, we strive to perform to the highest possible standards, and take sensible and cost-effective approaches to helping clients achieve their business and goals. We are committed to protecting our client’s intellectual property and exercising efficiency, confidentiality, and attention to detail in everything we do.

MARKS IP LAW FIRM firmly believes in earning clients’ trust through excellent service. Towards this end, the firm aims to deliver timely and efficient service to clients, which the firm is able to achieve through highly competent and experienced attorney.

Moreover, we frequently collaborate with reliable foreign lawyers, whom we consider our global partners, to represent their most important clients. Through these relationships and contacts, MARKS IP LAW FIRM has access to a large network of lawyers practising in China, Korea, Hong Kong, Taiwan, Singapore, Malaysia, Thailand, Indonesia and other jurisdictions worldwide and will stand out as one of the few Japanese IP firms which can provide legal services to clients who are doing or planning to do business in the growing Asian economy.

At the heart of our firm is the goal to provide skilled, principled, and passionate legal service.


MARKS IP LAW FIRM, with the goal of providing big-firm level of service with the nimbleness and individualized attention and responsiveness that boutique firms are known for, is headed and founded by Masaki Mikami.


He is a seasoned IP attorney with extensive experience in trademark law practice to help small and large businesses alike have access to trademark attorney who is committed to providing responsive, affordable legal service to their needs.

Masaki Mikami concentrates his practice in the field of trademark law, providing trademark legal services to individuals and businesses. Masaki is a qualified IP attorney in Japan, and is registered to practice as IP litigator since 2004.

Masaki was born in Himeji of Japanese parents and educated at Himeji-Nishi High School, Keio University. Prior to entering the legal profession, he worked in the business world. Masaki has global marketing experience while working with Mitsubishi Electric Corporation for a decade. His extensive experience in that field allows him to understand the business realities facing his clients, helping him to negotiate the most favorable deals possible for his clients, providing meaningful, timely legal advice that is consistent with the client’s specific business needs. He worked with a Kobe-based patent office after qualifying as a Japanese IP attorney in 2003 and has been focusing on trademark matters for over twelve years before setting up his firm.

Masaki has more than twelve years of legal experience in the area of trademark law. In addition to trademark prosecution, Masaki’s trademark law services include infringement and validity opinions, strategic trademark portfolio, negotiations, legal advice with respect to trademark assignment, licensing and confidentiality agreements. Masaki regularly advises businesses and corporations on the availability and proper use of trademarks, service marks, taglines, and logos. Masaki prosecutes applications to register these marks in Japan and worldwide. Since beginning his law practice, Masaki has represented a wide range of clients, ranging from small start-up businesses to large international corporations in over 2,000 trademark matters covering more than 120 countries.

Community Services

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Areas of Practices

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Our Clients

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