About Us

Message

Delivering Superior Results to Our Clients

We are a mid-sized patent law firm located in the Sakae area of Nagoya, Japan, established in 2006.
We specialize in intellectual property services and place great value on close communication with our clients.

People often ask: What does GRANDOM mean?
GRANDOM is a coined word combining “grand” (magnificent, dignified) and the suffix “-dom” (as in “freedom”), representing a state of being.

However, our true intention is not to appear magnificent, but to work with dignity and deliver the highest quality services to our clients.

To achieve this, we continuously seek outstanding talent, improve individual capabilities, and foster unity across our organization.
Intellectual property services require professional collaboration—including administrative teams—and above all, close communication with our clients.

We believe that patent specifications are collaborative works born through dialogue. It has been our experience that the true essence of an invention made by inventor (s) is often revealed through discussions.

Based on this philosophy, we are committed to delivering top-tier intellectual property services both domestically and internationally.

September 2018

Our Policy

Our Principles

Laying out
a Red Carpet Path
for Our Clients

Professional
Enhancing Expertise and Professionalism
Acquisition
Acuiring Powerful Rights
  • Pursue the nature of the invention
  • Provide clear and readable specifications
  • Stay aware of market trends (Focus on prosecution strategies)
Visualization
Ensuring visible and productive meetings
Optimized
Country-Specific Optimization
Development
Development of human resources
  • Hold regular in-house study sessions
  • Create a vibrant and collaborative organization

Our Profile

Name
Grandom Patent Law Firm
Address
Hirokoji Sakae Bldg. 3F,
4-1, Sakae 2-chome, Naka-ku,Nagoya-shi,
Aichi 460-0008 Japan
Contact Dtails
TEL : +81-52-218-9077
FAX : +81-52-218-9076
Establishment
May 2006
Services
Patents, Utility Models, Designs and Trademark Applications in Japan and Abroad, Appeals, Appraisals, Trials, and Consulting Services on Intellectual Property
Number of Staff
16 (6 patent attorneys, technical staff, domestic and international administrative staff, and drawing staff)

History

2006.5
Yoshiyuki Takagi established Grandom Patent Law Firm in Marunouchi, Nagoya.
2016.5
10th Anniversary
2017.5
Moved to Sakae, Nagoya
2020.12
Yoshiyuki Takagi became a senior advisor and Atsushi Ito became a representative.
2022.6
Japanese firm name (including business entity designation) changed due to amendment of the Patent Attorney Law
2025.1
Renewal of website and logo

Access

Grandom Patent Law Firm

Hirokoji Sakae Bldg. 3F,
4-1,Sakae 2-chome,Naka-Ku,Nagoya-shi,
Aichi 460-0008 Japan

TEL : +81-52-218-9077 
FAX : +81-52-218-9076

  • About 5 minutes walk from Exit 4 of Fushimi Station (Higashiyama Line/Tsurumai Line) on the Nagoya Municipal Subway.

About Logo

We Deliver the Highest Quality Results to Support Your IP Strategy

In our everyday surroundings, we encounter many things composed of tiny dots—printed materials, LCD screens, and more. A single dot may seem insignificant and often goes unnoticed, but if even one is missing, the value of the entire text, image, or screen can be compromised. The same holds true in the field of intellectual property. Each product is made up of various IP rights—patents, designs, trademarks—that come together like dots to form the product and support the business behind it.

We see ourselves as one of those essential dots—quiet yet indispensable. By applying our expertise, we deliver top-quality IP services that help build and sustain our clients’ businesses. This philosophy is embedded in our logo.

What we especially wanted to express is the inclusion of the letter “G” from GRANDOM within a dot. It symbolizes our presence as a vital part of the dots that make up our clients’ businesses—quietly but powerfully supporting them from within.

Recruit

We are looking for human resources to build intellectual property strategies in line with market changes.

Contact Us

Phone

Reception Hours: 9:00 AM - 17:30 PM