Driven by the rapid growth of IoT, “multi-component products” integrated with cellular connectivity (4G/5G)—such as connected vehicles, smart home appliances, and industrial machinery—have become market mainstream. Consequently, licensing disputes involving Standard Essential Patents (SEPs), which are technologically indispensable for implementing specific technical standards, have expanded into cross-industry friction and grown increasingly complex.
How are the Japanese government and judiciary approaching this massive intellectual property risk, and what directives do they offer to practitioners?
This article provides an accessible overview of Japan’s current SEP environment as of 2026, tracking a major strategic pivot in the nation’s baseline stance, recent debates within the Industrial Structure Council, and core takeaways from the Japan Patent Office (JPO) negotiation guidelines.
1. Current Debates in the Industrial Structure Council and Japanese Government
To address a shifting global SEP ecosystem, the Intellectual Property Committee of the Industrial Structure Council (an advisory body to the Ministry of Economy, Trade and Industry, or METI) and the JPO are actively debating several key issues:
Core Policy Debates
- Strengthening IP Competitiveness for Beyond 5G (6G): Strategically supporting the integration of high-value Japanese technologies into international standards, with a national target to capture and maintain at least a 10% global share of next-generation SEPs.
- Enhancing Licensing Transparency and Fair Play: Coordinating with initiatives like the government’s Working Group on Fair IP Transactions (established September 2025) to refine equitable rules for risk and cost-sharing across entire supply chains—from component manufacturers to end-product OEMs.
- Positioning Japan as a Hub for Global Dispute Resolution: Upgrading Japan’s judicial and Alternative Dispute Resolution (ADR) frameworks to handle cross-border FRAND royalty disputes, acting as a competitive alternative to Europe’s Unified Patent Court (UPC) and the US SEP task forces.
Outlook and Policy Timeline
The Japanese government has regularly issued landmark frameworks, including the 2020 Guide on Fair Value in SEP Licensing and the 2022 Guidelines for Good Faith Negotiations.
As of 2026, following the rollout of a new procedural protocol by the Tokyo District Court in January 2026 and recent global case law, authorities are actively updating administrative guidelines to embed these practices deeper into commercial realities. Driven by Industrial Structure Council roadmaps, upcoming interim reports and updated directives are expected to further refine rules on IP valuation for AI-assisted inventions and subcontractor protection within manufacturing supply chains.
2. Japan’s Core Stance on Standard Essential Patents (SEPs)
Japan’s current framework represents a balanced approach: early resolution via good-faith negotiations on Fair, Reasonable, and Non-Discriminatory (FRAND) terms is the baseline expectation, but recalcitrant or bad-faith market participants face strict judicial remedies. This position marks a significant departure from historical norms.
Phase 1: The Implementer-Friendly Era (Post-2014)
For over a decade, Japanese SEP practice was governed by the 2014 Intellectual Property High Court Grand Assembly ruling in Apple v. Samsung. That decision held that if an implementer demonstrates a general willingness to negotiate, a patentee’s request for an injunction constitutes an abuse of rights (the FRAND defense). Consequently, Japan gained a global reputation as a highly favorable jurisdiction for end-product manufacturers (implementers), making injunctions exceptionally difficult to obtain.
Phase 2: The Watershed SEP Injunction (June 2025)
This long-standing paradigm shifted in June 2025 with the Tokyo District Court’s decision in Pantech v. Google (concerning the Pixel 7). The court found that because Google failed to disclose critical information necessary for calculating royalty rates—even after a formal settlement recommendation—it lacked a genuine willingness to take a license. Labeling Google an unwilling implementer, the court issued Japan’s first-ever sales injunction based on SEP infringement.
Phase 3: The 2026 Reality – The Tokyo District Court’s New Protocol
In January 2026, the Intellectual Property Division of the Tokyo District Court formalized this trajectory by introducing the Procedural Protocol for Standard Essential Patent (SEP) Infringement Litigation alongside specialized SEP Mediation Procedures.
This protocol enforces a highly rigorous operational standard:
- Early Judicial Intervention: Strongly encourages court-led concentrated settlement and mediation tracks at the initial stages of litigation.
- Substantive Good Faith Evaluation: Moves past superficial expressions of a “willingness to negotiate.” The court now scrutinizes whether parties actively exchange concrete calculations for global portfolios using established methodologies (such as top-down or comparable license approaches).
Modern practice in Japan prioritizes objective, data-driven information disclosure and strict adherence to judicial and mediation workflows over purely formalistic negotiation gestures.
3. The JPO Guide to SEP Licensing Negotiations: Framework and Role
The operational baseline for commercial negotiations is managed via the JPO’s Guide to Licensing Negotiations Involving Standard Essential Patents (currently in its Second Edition, published June 30, 2022).
Legal Nature of the Guide
The Guide does not carry the force of law, nor does it establish binding statutory norms. Instead, it serves as a highly detailed analytical resource designed to improve predictability by objectively organizing core negotiation issues based on global jurisprudence (such as the UK’s Unwired Planet and Germany’s Huawei v. ZTE) and advanced economic analysis.
Core Areas of Focus
The Guide primarily covers three critical dimensions of SEP practice:
① The Good-Faith Negotiation Process
Aligned with METI’s Guidelines for Good Faith Negotiations, the document maps out responsibilities for both patent owners and implementers across four distinct stages:
- The Licensing Offer: The patentee identifies the target SEPs, relevant technical standards, and provides charts (such as claim charts) mapping patents to products to demonstrate infringement.
- Expression of Willingness: Upon receiving the offer, the implementer must declare a genuine intent to acquire a license within a commercially reasonable timeframe.
- Counter-Offers on FRAND Terms: Both parties exchange specific, substantive royalty proposals backed by verifiable valuation methodologies.
- Dispute Resolution: If negotiations reach an impasse, parties are encouraged to utilize neutral third-party tracks, including the JPO’s essentiality advisory opinions, formal arbitration, or the court-led mediation frameworks introduced in 2026.
② Valuation and Royalty Calculation
The Guide provides practical breakdowns of the Top-Down Approach (allocating a proportional share of an aggregate, capped royalty ceiling for an entire technical standard based on patent count) and the Comparable Licenses Approach (using existing, market-validated agreements as benchmarks).
It also offers an objective balancing of the industry’s central valuation dispute: whether royalties should be calculated based on individual components like baseband chips (the SSPPU or Smallest Saleable Patent-Practicing Unit doctrine) or based on the value of the finished end product (the EMV or Entire Market Value rule).
③ Selection of Licensable Entities in Supply Chains
Addressing the question of where within a supply chain (component makers, module vendors, or end-product OEMs) a license should be executed, the Guide recognizes established commercial customs—noting that the patentee generally retains the initial right to select the licensing tier—while outlining strategies to mitigate the risks of double-dipping.
Reference Sources
The analysis in this guide is based on official primary sources and judicial documentation issued by the Japanese government:
- Ministry of Economy, Trade and Industry (METI) / Japan Patent Office (JPO)
- JPO Standard Essential Patents Portal Site (Consolidated Guidelines): https://www.jpo.go.jp/support/general/sep_portal/index.html
- JPO Guide to Licensing Negotiations Involving Standard Essential Patents (Second Edition): https://www.jpo.go.jp/system/laws/rule/guideline/patent/document/rev-seps-tebiki/guide-seps-ja.pdf
- METI Guidelines for Good Faith Negotiations for Standard Essential Patent Licenses: https://www.meti.go.jp/policy/economy/chizai/sep_license/good-faith-negotiation-guidelines-for-SEPlicenses-ja.pdf
- Judiciary of Japan
- Tokyo District Court (Intellectual Property Division), Procedural Protocol for Patent Infringement Litigation Involving Standard Essential Patents: https://www.courts.go.jp/tokyo/saiban/minzi_section29_40_46_47/SEP_tokkyoken_shingai/index_2.html
This text was translated by a large language model (LLM).