Your Trusted Partner

Welcome to MARKS IP Law Firm.

Through many years of focused practice as a seasoned Japanese Intellectual Property (IP) attorney, I’ve built this firm to be a trusted resource for your trademark protection in Japan and Asia, a place where you receive the quality of a big law firm with flexibility that only a small firm can provide.

MARKS IP Law Firm is committed to working closely with you to ensure that IP strategies employed in any case are tailored to achieve your specific goals. We treat your success as our business. We firmly believe intellectual property serves positively to affect the way people live and lead unified society in peace.

Our motto is simple:

“Do everything in our power to produce an excellent result not only to our clients but also global society.”

We look forward to getting to know you and allowing you to feel empowered.

Masaki MIKAMI – Founder, Attorney at IP Law

Trademark services with a commitment to excellence

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...

Practice Areas

We enjoy working for clients to establish, protect and enforce their intellectual properties, inter alia, trademarks. MARKS IP Law Firm can provide you with exceptional legal representation. We take great pride in our passionate, tenacious and ethical approach to the practice of the law.
The below listed pages are some the practice areas in which the MARKS IP Law Firm practices.


Trademarks are one of the key assets for most businesses.  It tells customers that your products or services are provided by your company and, as such, they can rely on the quality of those products or services.


Trade dress includes the visual appearance of a product, its design, or packaging. As with trademarks, trade dress signifies the source of a product. Misuse of a company’s trade dress often results in confusion among consumers.


Industrial designs are the visual features of shape, configuration, pattern or ornament, or any combination of these features applied to a finished article.


Copyright is a form of intellectual property applicable to certain forms of an author’s original and creative creative work.

Latest News & Topics

Failed trademark opposition by Disney over a 3-circle silhouette

In a recent decision, the Japan Patent Office (JPO) dismissed an opposition filed by Disney Enterprises, Inc. against TM Reg no. 6303837 for a composite mark containing a three-round device due to a low degree of similarity to famous Mickey’s 3-circle...

Trademark Battle – PUMA vs KUMA

The Japan Patent Office (JPO) decided to invalidate trademark registration no. 5661816 for a stylized word “KUMA”, which means ‘bear’ in Japanese, due to similarity to, and a likelihood of confusion with a world-renowned sports brand, PUMA. [Invalidation case no....

Trademarks – Lawyer of the Year – Japan

We are pleased to share with you that our attorney, MASAKI MIKAMI was awarded the Law Award 2018 as “Trademarks – Lawyer of the Year – Japan”  by the Finance Monthly.

The Lawyer Monthly Legal Awards

The Finance...

Our Services

MARKS IP LAW FIRM provides clients with a full suite of trademark counseling services for local and international clients. We handle all aspects of the trademark practice, including providing legal advice on trademark strategies and the search, selection, registration, renewal of trademarks in Japan and internationally, and when necessary, representing clients in enforcing their trademark rights against infringers. We review and monitor trademark registrations to make sure they are properly registered, renewed and protected. We are experienced in creating and managing both domestic and worldwide trade mark portfolios and disputes.

Trademark Opposition / Invalidation

Trademark opposition and invalidation proceedings are complex legal matters that require the attention of sharp, knowledgeable attorneys.

Domain Name Dispute

domain names are more than just addresses, since they can be selected by the “addressee” and are usually closely associated with a particular service or product.

Customs Enforcement of Trademark & IPR

MARKS IP Law Firm attorney have sufficient experience to seize faked goods at the port of Japan in cooperation with JCTB.

Our Accomplishments

Trademarks – Lawyer of the Year – Japan
Most Innovative IP Law Firm – Japan
Trademarks – Law Firm of the Year
Trademark Litigation
Overseas Case
JPO Prosecution

What People Say about us

Masaki serves as counsel for all of my firm’s Japanese trademark matters and I am continually impressed with his clear advice and astute judgment. He is an expert on Japanese trademark law and is always knowledgeable about the latest updates in the IP field. If you need cogent advice on Japanese IP matters, I highly recommend Masaki to steer you in the right direction and provide you with optimal results.

Meet our attorney


MARKS IP LAW FIRM 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 fifteen 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 2,400 trademark matters covering more than 120 countries.

Masaki MikamiAttorney at IP Law

Frequently Asked Questions

Can I stop someone using my registered trademark as a domain name?

You may well be able to stop them if they are trading in the same area of business and particularly if you can show that they are acting in bad faith.

How long does a trademark registration last?

The initial term of registration is 10 years from the filing date. The registration can be renewed indefinitely for further periods of 10 years...

How long does it take for a trademark to be registered in Japan?

Without any complications, such as a rejection by the JPO examiner or an objection by your competitors, the average time to get the trademark...

Does the Japanese Trademark Law bestow protection to unregistered trademarks?

Yes. The Japanese Trademark Law contains the provision to refuse/invalidate third party trademark application which is identical with or...

What happens if a registered trademark is not used?

If you fail to use your trademark for the goods or services for which it was registered for an uninterrupted period of three years in Japan, the...

Can I export my products to Japan using ® symbol beside a registered trademark in my country, but not registered in Japan?

The Japanese Trademark Law has the provision to prohibit affixing an indication of trademark registration or an indication confusing therewith to...

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