Best Patent Lawyers in Japan

Share your needs with us, get contacted by law firms.

Free. Takes 2 min.

Or refine your search by selecting a city:

Iwatagodo Law Offices
Tokyo, Japan

Founded in 1902
50 people in their team
Japanese
English
Iwata Godo Law Office was established in 1902 as a pioneering law firm specializing in corporate law in Japan, and was established in 1902 as the Minister of Justice, member of the House of Peers, chairman of the Japan Federation of Bar Associations, chairman of the Academic Society, etc. , was...
MORGAN LEWIS & BOCKIUS LLP
Chiyoda-ku, Japan

Founded in 1873
5,000 people in their team
Japanese
English
OUR FIRMAt Morgan Lewis, we work in collaboration around the world-always ready to respond to the needs of our clients and craft powerful solutions for them.From our offices in strategic hubs of commerce, law, and government across North America, Asia, Europe, and the Middle East, we work with...

English
Yamagami International Law Offices, with offices in Tokyo and Fukuoka, provides specialist legal services in cross border matters, including international transactions, international family law, patent matters and a broad range of litigation. The firm serves foreign individuals and multinational...
CITY-YUWA PARTNERS
Chiyoda-ku, Japan

Founded in 2003
50 people in their team
Japanese
English
City Yuwa Law Office was established in February 2003 through the merger of Tokyo City Law and Tax Office (legal department) and Yuwa Partners Law Office. At the former Tokyo City Law and Tax Office, he focused on civil dispute resolution such as litigation, real estate matters, and bankruptcy...
HIROE & ASSOCIATES
Gifu City, Japan

Founded in 2000
50 people in their team
Japanese
English
Hiroe Associates Patent Officeis a comprehensive patent office with specialized engineers and lawyers specializing in patent litigation as consultants.Utilizing our overseas network, we handle many applications not only in Europe and America, but also in Central and South America, Southeast Asia,...
M. IDE & CO.
Chiyoda-ku, Japan

Founded in 1995
50 people in their team
Japanese
English
M. IDE & Co. is a firm located in Tokyo, Japan, specialising in counsel and representation in the procurement of patents, trademarks and other IP rights. M. IDE & Co. was founded in 1995 by Masatake IDE who was born in 1957 in Tokyo Japan and was admitted in 1984 as a Japanese patent...
Allegro IP Law Firm
Kanagawa, Japan

Founded in 2016
10 people in their team
Japanese
English
Allegro IP is a unique and exclusive Japanese intellectual property law firm that carries out the missions of supporting overseas clients’ business in Japan with IP rights.Although we are relatively a small boutique firm, we guarantee that experienced patent attorneys methodically handle patent...
Tanimachi Law Office
Osaka, Japan

English
Tanimachi Law Office is an Osaka based civil and commercial law practice led by two experienced attorneys, Shogo Ishizaka and Masanori Horikawa. The firm handles a broad spectrum of civil matters including family law, personal injury, real estate and intellectual property, and it supports...

Founded in 1976
87 people in their team
English
TNY Kokusai Law Office (Saga) is part of the TNY Group, a Japanese law firm network with offices in Tokyo, Osaka, and Saga, and a presence across 14 countries. The firm provides cross border corporate and commercial legal services, intellectual property and dispute resolution for Japanese and...

Founded in 2013
200 people in their team
Japanese
English
FirmThe leading Japanese law office ATSUMI & SAKAI and JANSSEN FOREIGN LAW OFFICE have entered into a Foreign Law Joint Enterprise to form integrated legal teams in the closest form of cooperation between Japanese and foreign lawyers. In this way, we combine the bridge function of a foreign law...
AS SEEN ON

About Patent Law in Japan

Patent law in Japan is governed by the Patent Act, which regulates the granting and enforcement of patents in the country. A patent provides the holder with the exclusive right to exploit an invention, preventing others from making, using, or selling the invention without permission. This legal framework aims to encourage innovation by ensuring inventors can benefit economically from their creations. Japan is one of the leading countries in terms of patent filings, reflecting its strong emphasis on technological advancement and innovation.

Why You May Need a Lawyer

Engaging a lawyer specializing in patent law can be beneficial for numerous reasons. Inventors may require legal help to navigate the complex patent application process, which involves meeting specific criteria and deadlines. Businesses might need a lawyer to conduct patent infringement analyses to avoid legal disputes or to enforce their patent rights against infringing parties. Additionally, when entering into licensing agreements, having a lawyer ensures that the terms are favorable and legally sound. Patent attorneys in Japan can also provide strategic advice on managing intellectual property portfolios effectively.

Local Laws Overview

Key aspects of Japanese patent law include the requirement for an invention to be new, inventive, and industrially applicable to be patentable. The Japan Patent Office (JPO) is responsible for examining patent applications and granting patents. Japan operates on a first-to-file basis, meaning that the first person to file a patent application has the rights to the patent. The standard patent protection duration is 20 years from the filing date, with annual maintenance fees required to keep the patent in force. The law also provides specific procedures for addressing patent infringement, including litigation and dispute resolution options.

Frequently Asked Questions

What qualifies as a patentable invention in Japan?

A patentable invention in Japan must be novel, involve an inventive step, and be capable of industrial application. It must not fall under any non-patentable categories stipulated by the Patent Act.

How long does the patent application process take in Japan?

The patent application process can typically take about 18 months to several years, depending on the complexity of the application and the workload of the Japan Patent Office (JPO).

Are there any fees involved in obtaining a patent in Japan?

Yes, the patent process in Japan involves filing fees, examination fees, and annual maintenance fees to keep the patent in force once granted.

Can I apply for a patent in Japan if I am a foreign national?

Yes, foreign nationals or companies can apply for patents in Japan. However, administrative and application procedures must be conducted through a representative domiciled in Japan, such as a patent attorney.

What is the duration of patent protection in Japan?

Patent protection in Japan lasts for 20 years from the filing date, subject to the payment of annual maintenance fees.

What should I do if I believe my patent is being infringed?

If you suspect patent infringement, consulting a patent lawyer to evaluate the situation and consider the options for enforcement through negotiations, settlements, or litigation is advisable.

Is it possible to challenge a patent in Japan?

Yes, third parties can challenge a granted patent by filing an opposition or invalidation trial with the Japan Patent Office if they believe the patent does not meet the legal requirements for patentability.

Can software be patented in Japan?

Yes, software can be patented in Japan if it meets the criteria for patentability, such as having technical characteristics like control or processing of information in a novel and inventive way.

What is a PCT application, and how does it relate to Japan?

The Patent Cooperation Treaty (PCT) facilitates patent protection in multiple countries, including Japan. A PCT application can streamline the process of seeking patent protection in Japan through an international filing.

How can I search for existing patents in Japan?

The Japan Platform for Patent Information (J-PlatPat) allows users to search for existing patents. It provides access to patent applications and granted patents in Japan.

Additional Resources

For more information and resources on patent law in Japan, consider reaching out to the Japan Patent Office (JPO), the Japan Institute for Promoting Invention and Innovation, and relevant industry associations. Legal databases and professional networks like the Japan Patent Attorneys Association can also provide valuable insights and assistance.

Next Steps

If you need legal assistance with patents in Japan, the first step is to consult a qualified patent attorney with experience in Japanese patent law. Preparing documentation of your invention or any relevant materials can expedite the consultation process. Consider reaching out to a local law firm specializing in intellectual property or seeking recommendations from professional networks to find a lawyer suited to your specific needs. Lastly, stay informed about the latest amendments and regulations in Japanese patent law to ensure continuous compliance and protection of your intellectual properties.

Lawzana helps you find the best lawyers and law firms in Japan through a curated and pre-screened list of qualified legal professionals. Our platform offers rankings and detailed profiles of attorneys and law firms, allowing you to compare based on practice areas, including Patent, experience, and client feedback.

Each profile includes a description of the firm's areas of practice, client reviews, team members and partners, year of establishment, spoken languages, office locations, contact information, social media presence, and any published articles or resources. Most firms on our platform speak English and are experienced in both local and international legal matters.

Get a quote from top-rated law firms in Japan — quickly, securely, and without unnecessary hassle.

Disclaimer:

The information provided on this page is for general informational purposes only and does not constitute legal advice. While we strive to ensure the accuracy and relevance of the content, legal information may change over time, and interpretations of the law can vary. You should always consult with a qualified legal professional for advice specific to your situation.

We disclaim all liability for actions taken or not taken based on the content of this page. If you believe any information is incorrect or outdated, please contact us, and we will review and update it where appropriate.