About The Firm

Our Story

Allegro IP was established as a spin-off from Yanagida & Associates, a well-established Japanese intellectual property law firm founded in 1973. All of the members were former colleagues of the foreign clients team at the Yanagida firm, and our team was selected from competent attorneys who are capable of providing the best services to overseas clients.

The impetus behind our decision to establish a new firm was to mitigate the adverse effects of Japanese large/old-line IP firms.

Firstly, as the IP firm grows, it generally places emphasis on large companies’ cases. However, we are dedicated to supporting the most advanced companies, which sometimes are small venture/start-up companies, in obtaining IP protection in Japan with the understanding of the inventions based on the cutting-edge fundamental research. We proactively utilize official fee reduction programs for such companies.

Secondly, service fees tend to increase drastically as an IP firm grows. Sometimes this is because, at a large firm, the attorney handling the case is an associate, and a partner supervises and charges for both attorneys. However, we aim to minimize the costs charged to our clients. 

At our firm, we do not adhere to the traditional paralegal and associate attorney models. Instead, a single partner attorney is assigned to handle each case from start to finish, including translation.

Thirdly, Japanese IP firms typically prioritize cases for domestic (Japanese) clients, and when clients wish to file foreign applications, they often collaborate with foreign associates in a reciprocal manner. However, we exclusively handle patent and trademark matters in Japan for our international client base. We adhere to a policy of not collaborating with foreign associates on a reciprocal basis.

At Allegro, we are committed to combining the strengths of both new and traditional firms and to delivering exceptional services to our clients in a timely, high-quality, and cost-effective manner.

2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

2025

10. Trials

The year 2025 marked our firm’s 10th anniversary milestone and proved to be a year of trials. We exercised discretion in the handling of new cases, allocating greater attention to the ongoing services of our existing client base. We confronted the most challenging case since the firm’s inception, but by leveraging the collective expertise of all employees and engaging in repeated discussions with the Japan Patent Office, we successfully overcame the crisis. We are committed to enhancing our firm’s organizational framework to ensure our ability to effectively manage any challenging situations that may arise in the future.

2024

09. Recharging

The year 2024 was a recharging period for our firm before further development. We received the highest number of office actions from the Japan Patent Office and dedicated ourselves to responding to each action. As a result, we had to control the work of new clients who heard about us from existing clients, while we are still ranked in the Top 100 among 5000+ Japanese IP firms based on PCT national phase entries into Japan. We also actively supported and trained young researchers and conducted several endowed courses at universities.

2023

08. Control

In the year 2023, in light of the increase in the number of cases in the previous year, we had to control the number of cases we accept from our new clients in order to maintain the quality and speed of our work.  However, we have completed the implementation of a new management system to streamline the firm’s strategy, and therefore, we believe we are ready to respond to clients’ further requests in 2024.

2022

07. Balance

In the year 2022, which was the sixth fiscal year of Allegro IP Law Firm, the number of new cases received from overseas clients reached a record high.  We of course appreciate the opportunity to be of service to every client, but on the other hand, we had to decline some cases from new clients to provide high-quality services.  We believe that we have reached a stage where we should reconsider the balance between the quality of our work and the development of our firm.

2021

06. Development

In the year 2021, which was the fifth fiscal year of Allegro IP, we struggled to develop our firm. We already restructured our firm’s system under the Coronavirus outbreak last year, but in view of our increasing cases from from all over the world, in early 2022, we will complete our transition to the latest docket system such that we can manage our cases more efficiently and reliably. We continue to take an active part in the international activities center of the JPAA (Japan Patent Attorneys Association).

2020

05. Stabilized

While coronavirus outbreak poses challenges for us to maintain our operations, we complete our firm’s system transition to provide our quality services and our business is stabilized in the fourth year of establishment. Allegro IP has represented 150+ applicants from 35+ countries and is ranked in the top 100 among 5000+ Japanese IP firms based on PCT national phase entries into Japan. We continue to take an active part in the international activities center of the JPAA (Japan Patent Attorneys Association).

2019

04. Office Relocation

Allegro IP office is relocated to WeWork Ocean Gate Minatomirai in Yokohama to enhance our teamwork and to serve our clients better. One of our partners continues to take an active part in the international activities center of the JPAA (Japan Patent Attorneys Association) and is also listed as a Mediator, Arbitrator & Panelist candidate at the JIPAC (Japan Intellectual Property Arbitration Center).

2018

03. Growth

We actively meet and talk with overseas applicants and associates to discuss Japanese patent matters at BIO Asianano techAPAA (Asian Patent Attorneys Association) in India, Bio Japan, etc.  Further, one of our partners takes an active part in the international activities center of the JPAA (Japan Patent Attorneys Association) and also gets places on the AIPLA (American Intellectual Property Law Association) PG and the IPO (Intellectual Property Owners Association) PG.

2017

02. Startup

We greatly appreciate that 20+ overseas companies, universities, and individuals kindly appoint us as representative IP attorneys to handle their patents and trademarks in Japan from the very beginning of our firm.

2016

01. Allegro IP Founded

Allegro IP is established separating from the foreign clients team at Yanagida & Associates founded in 1970s. The mission: to support the most advanced companies and universities across the world in obtaining strong and valuable patent and trademark protection in Japan.

we work hard
in all Technical fields

At Allegro IP, our services are exclusively provided by attorneys who have accumulated at least 20 years of experience in their respective fields of specialization. Each case is handled by the same patent attorney from start to finish, including filing, prosecution, appeals, oppositions, and, if necessary, trials.

01
Pharmaceuticals

One of our attorneys is registered as a pharmacist and has over a decade of experience in the pharmaceutical industry prior to transitioning to patent law.

02
Life Sciences

Our attorneys have extensive experience with various DNA studies and collaborate with university laboratories to stay abreast of the latest findings.

03
3D Printing

Three-dimensional (3D) printing technology is currently in widespread use, but our attorneys have been tracing the history of this innovation.

04
Chemicals

We have been selected to represent one of the world's leading companies in the fields of chemicals, materials, and polymers since our inception.

05
Biotech

Our firm has extensive experience handling patent applications and registrations for a wide range of start-up companies in the biotech sector.

06
Other Fields

Our patent attorneys possess expertise in over 120 technical fields. To inquire about the technical field's acceptability, please do not hesitate to contact us.

The Features

01
meet specific needs

We are experienced in handling overseas clients' diversified and complicated cases in Japan.

02
understanding Inventions

We stay current with the latest developments to ensure our clients' patent protection is maximized.

find your IP attorney

At Allegro IP, only experienced partner attorneys are in charge of overseas clients’ cases before the Japan Patent Office, and unlike other firms, there are no paralegals or associate attorneys.   Each attorney is responsible for handling each case entirely from the filing thereof through prosecution, as well as an appeal, opposition, and a trial if necessary.  All of our IP attorneys have:

abundant experience

Our firm is based on the foreign clients team at a long established firm in Japan.  The members were selected from among competent IP attorneys who are capable of providing the best services to foreign clients and are familiar with how to proceed with overseas clients’ cases in Japan.  Our team has:

Past Achievement – Time Saving

Patent Application Publication
Save 28 days (144 v. 172 days) 16%
Request for Examination
Save 27 days (3 v. 30 days) 90%
Response to Office Action
Save 23 days (7 v. 30 days) 76.7%
Patent Registration
Save 56 days (8 v. 64 days) 87.5%

Past Achievement – Cost Reduction

National Phase Filling Fee
Save $ 360 (JPY 60,000 v. 100,000) 60%
Translation Fee
Save $ 0.1/word (JPY 25 v. 35) 71.4%
Attorney Hourly Rate
Save $ 140/hour (JPY 15,000 v. 30,000) 50%
oceangate

About the firm

Allegro IP is a boutique intellectual property law firm in Japan. We have refined our firm’s system and strategy to prioritize intellectual property rights (IPR) in Japan, particularly patent and trademark matters, catering to our international clientele. This strategic focus enables us to deliver services that are punctual, of the highest caliber, and cost-efficient. Our firm handles Japanese patent and trademark applications and registrations based on those from various jurisdictions, currently including: the United States (US), the European Union (EP), Germany, the Netherlands, the United Kingdom (UK), Spain, France, Italy, Norway, Sweden, Switzerland, Australia, New Zealand, and Canada, among others. We aim to foster mutually beneficial growth for our clients and our firm, supporting their global expansion.