5
25
30
33
Japanese, English, Chinese, German, Korean
INTA, AIPPI, APAA, JPAA
History and Offices
Founded in Osaka in 1956, we are an intellectual property firm with a 70-year history. Since our establishment, we have built extensive practical experience dedicated to the field of intellectual property. With the opening of our Tokyo office in 2018 and the establishment of a presence in Shenzhen, China in 2026, we now provide a broad range of intellectual property services to companies and research institutions in Japan and abroad.
Practice Areas
Our practice covers patents, designs, trademarks and copyrights, including filing and prosecution, maintenance of rights, portfolio management, licensing, searches and analysis, and dispute and litigation support. By bringing together multilingual professionals across these fields, we provide practical IP services tailored to each client’s business and technology.
Firm Structure
Our firm has 28 Japanese patent attorneys, 2 professionals qualified as Chinese patent agents, and
approximately 20 technical staff members. Including administrative and management personnel, our total staff exceeds 100 members. Through close collaboration between professionals and support staff, we handle a large volume of matters while addressing a wide range of client needs.
Filing Record
In Japan, we handle more than 1,000 patent applications, 300 trademark applications and 100 design applications each year. Through this substantial filing practice, we have developed practical expertise across a broad range of technologies and industries.
International Capabilities
We have built a long-standing network with overseas patent and law firms, primarily in Europe, North America and Asia. Through this network, we provide seamless support for international filings, foreign prosecution, overseas rights acquisition and contentious matters. We also continue to remain active in international IP-related activities and maintain relationships with professionals in various jurisdictions.
Use of Technology
We use patent specification drafting support tools and administrative support programs developed by an affiliated systems development company. These tools support improvements in drafting quality, standardization of descriptions, and automation and streamlining of administrative work. By doing so, we seek to improve both efficiency and quality while handling a large number of matters.
- 8F Pacific Century Place Marunouchi, 111-1 Marunouchi, Chiyoda-ku, Tokyo, 100-6208, Japan
- Room 1804B 1809, Building B, Phase 1, Qianhai Economy and Trade Center of China Merchants Group, No. 151 Zimao West Street, Nanshan Street, Shenzhen, 518066, China
Key practice areas:
Designs, Intellectual property, Intellectual property (prosecution), Patent, Patent (prosecution), Trade mark, Trade mark (prosecution)
Sector expertise:
Agriculture, Electrical, Automotive, Electronics, Biotechnology, Energy, Chemical, Food and beverage, Healthcare, ICT & software, Life sciences, Logistics, Mechanical, Oil and gas, Optics & photonics, Renewable energy, Telecommunication, Pharmaceutical, Semiconductors
