Allegro IP Law Firm | Japanese IP Attorneys

We focus on patent filing and prosecution in Japan for overseas clients.

Features of Allegro IP​

We carry out the missions of supporting the most advanced companies and universities across the world in obtaining IP protection in Japan.

Client Breakdown 2019

1 %
overseas Corp./univ.
1 %
overseas IP firm
1 %
Japanese Corp./univ.









The Door into Japanese IP

Save Time

Each member of our firm is always conscious of being highly responsive. We make positive use of expedited examination procedures, including PPH (Patent Prosecution Highway) and Super Accelerated Examination.

Save Money

We have tried to reduce waste to keep the costs to be charged to our clients to a minimum. We are able to meet the specific needs of each client, including fixed charges, abbreviation of some services, volume discounts, etc.

Direct Contact

We are familiar with how to proceed with overseas clients' cases in Japan, and we have been working directly with companies, universities and individuals to better understand cutting-edge inventions.

Enjoy Security

The firm’s operation is extremely sophisticated so that overseas clients may enjoy our best services in Japan without anxiety. You can get out of the trouble of managing Japanese patents with our quadruple check system.

Firm Overview

About Us

Allegro IP is a boutique IP law firm in Japan focusing on patent filing and prosecution for overseas clients


18+ years of experienced IP attorneys only handle overseas clients' cases before the Japan Patent Office

Our Services

We have tried to offer as high quality and expedient IP services as possible from the start of our firm

Service Fees

Our clients are always kept informed of any charges in a clear way and our service fees are competitive

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