Governance Governance

Intellectual property management

Updated July 2026

Intellectual property management

Policy

  • Promotion of "trinity activities" by business divisions, research divisions, and intellectual property department
  • Acquisition and utilization of intellectual property rights and development of IP strategies linked to business strategies through IP landscape
  • Optimization of IP portfolio, enhancement of intangible asset value and creation of business value

Main intellectual property activities

  • Companies conduct regular investigations to avoid infringing on other companies' patent rights, and share the information with relevant departments to strengthen the prevention of rights infringement.
  • Companies acquire intellectual property rights to protect their intangible assets, and take appropriate legal action when rights infringement is recognized.
  • Among our intellectual property rights, those with a low degree of contribution to our business are actively seeking partners who can make use of these rights, with the aim of building a business ecosystem.
  • Through intellectual property activities, we facilitate our business in collaboration with stakeholders inside and outside the Company.

Intellectual Property Approach for Creating Business Value

The IP Department will promote IP activities based on business strategies and optimize the IP portfolio through cross-organizational information sharing and dialogue from on-site IP meetings to discussions with management and reports to the Board of Directors, with the "three-pronged approach" of the Business Divisions, Research and Development Division, and IP Department as the axis.
In addition, in the growth areas of ICT & Energy and Healthcare, we will promote "offensive IP" aimed at establishing market superiority and in Sustainable Living, we will promote "stable value-creating IP" aimed at maintaining business competitiveness, and work to enhance business value and generate cash through intellectual property.

Status of intellectual property holdings

Item Scope Unit 2021年度 2022年度 2023年度 2024年度 2025 Fiscal Year Target
Number of patents/Percentage of total Number of patents Total Non-Consolidated cases 5,757 5,525 6,473 6,382 6,428
Overseas Non-Consolidated cases 2,485 2,446 2,604 2,692 2,651
Overseas Non-Consolidated cases 3,272 3,079 3,869 3,690 3,777
Percentage of patent ownership Overseas Non-Consolidated % 43% 44% 40% 42% 41%
Overseas Non-Consolidated % 57% 56% 60% 58% 59%

The Company is strengthening its intellectual property (IP) infrastructure to support the global expansion of its business. As of the end of fiscal year 2025, the Company holds 6,428 patents, of which 3,777 are overseas patents. The ratio of overseas patents has remained at around 60% in recent years, and the Company is working to establish rights for intellectual property with a view to global markets. These intellectual properties have become important management assets that support the Company's business activities.
Going forward, taking into account business environments and market trends, the Company will promote the establishment of IP portfolios that contribute to maintaining and enhancing its business competitiveness, and will utilize intellectual property as important management assets.

DFF Inc., Denka Company Limited CSR and Public Relations Office, Denka Company Limited IR Office, Seiwa Business Link
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