---
title: Japan Trademark Opposition Defense for Foreign Counsel | EVORIX
description: Complete guide to defending Japan trademark oppositions for foreign counsel. Covers opposition grounds, response procedures, success rates, cost, timeline,…
---

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JPO TRADEMARK OPPOSITION

# Defending Trademark Oppositions in Japan

Foreign Counsel Guide to JPO Post-Grant Opposition

Japan has a post-grant trademark opposition system: third parties can oppose your registered trademark within 2 months of publication. This guide explains the JPO opposition procedure, common grounds, defense strategies, and how foreign counsel can effectively protect their clients' registered marks against opposition challenges.

[Get a Quote in 24 Hours →](https://www.evorix.jp/en/inquiry) [All Refusal Strategies](https://www.evorix.jp/en/japan-trademark-refusal-response)

## The Japan Opposition System at a Glance

Unlike many countries, Japan has a **post-grant opposition** system. Your trademark is registered first, then third parties have 2 months from publication to oppose. This means oppositions challenge granted rights, not pending applications.

Approximately **3–5%** of registered Japanese trademarks face opposition. Most oppositions come from competitors, prior right holders, or famous mark owners. The success rate for opponents is approximately 30–40%, meaning trademark owners have a strong position when properly defended.

## Opposition Grounds Under Japan Trademark Act

| Article | Ground |
| --- | --- |
| **4(1)(8)** | Mark includes name/famous name of another person without consent |
| **4(1)(10)** | Similar to well-known mark (not registered, but well-known) |
| **4(1)(11)** | Similar to prior registered mark (same as refusal ground) |
| **4(1)(15)** | Likely to cause confusion with another's business |
| **4(1)(19)** | Filing in bad faith with intent to free-ride or harm |
| **3(1)(3)** | Mark is descriptive (rare in opposition; usually examiner catches) |
| **3(1)(6)** | Mark lacks distinctiveness |

## Opposition Procedure & Timeline

| Stage | Timeline |
| --- | --- |
| Trademark publication (gazette) | Day 0 — opposition window opens |
| Opposition filing deadline | **Day 60** (2 months) |
| Opposition filed → JPO formal review | 1–2 months |
| Opposition notification to registrant | ~3 months from filing |
| Response deadline for registrant | **3 months from notification** (extendable) |
| Opponent reply (if needed) | 2 months |
| JPO panel decision | 6–18 months from opposition filing |
| Appeal to IP High Court (by opponent if lost) | Within 30 days |

## Defense Strategies

Foreign counsel defending Japan oppositions have several strategic approaches:

### Strategy 1: Substantive Defense

Argue the opposition grounds don't apply: mark not actually similar to opponent's, opponent's mark not well-known in Japan, no likelihood of confusion, no bad faith.

Required: legal analysis, supporting evidence (sales data, advertising, market presence), expert opinions when appropriate.

### Strategy 2: Counter-Evidence Submission

Submit evidence of: your mark's independent good faith adoption, differentiation in marketplace, coexistence period without confusion, prior use of your mark.

### Strategy 3: Settlement / Coexistence Agreement

Negotiate with opponent for withdrawal of opposition in exchange for coexistence terms. Often cost-effective for both parties.

### Strategy 4: Limit Scope of Goods/Services

Voluntarily restrict your goods/services to non-overlapping areas with opponent's use, eliminating ground for opposition.

### Strategy 5: Challenge Opponent's Standing

Question whether opponent has standing — for example, if opponent's alleged prior rights are weak or their alleged well-known status is unsubstantiated.

## Fees & Cost

| Service | Fee (USD) |
| --- | --- |
| Initial opposition risk assessment | Free |
| Opposition response (basic) | $2,500–4,500 |
| Opposition response with extensive evidence | $5,000–8,500 |
| Settlement negotiation | $2,000–4,500 |
| Coexistence agreement drafting | $2,500–5,000 |
| Goods narrowing strategy | $1,200–2,000 |
| Appeal of opposition decision (Appeal Board) | $4,500–8,500 |
| IP High Court appeal | $10,000–20,000 |

## Success Rate Statistics

| Outcome | Approximate Rate |
| --- | --- |
| Registration maintained (full defense) | ~60–70% |
| Registration cancelled | ~30–40% |
| Partial cancellation (some goods) | ~10–15% of cases |
| Settlement during opposition | ~20% of cases |

**Strong base position**: Trademark owners have a structural advantage in Japan opposition — the mark is already registered, and the opposition burden is on the opponent. Well-prepared defenses succeed in 60–70% of cases.

## How We Defend Your Trademark

**Step 1**: Forward us the opposition notification immediately. Time is critical.

**Step 2**: 24-hour assessment of opposition merits + initial strategy + fee quote.

**Step 3**: Evidence gathering — we coordinate with you to collect commercial use evidence, advertising data, sales figures, etc.

**Step 4**: Response drafting (English summary shared with you before Japanese drafting).

**Step 5**: JPO filing + status reporting.

**Step 6**: Settlement negotiation if appropriate; appeal preparation if needed.

---

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