The Japan Patent Office (JPO) dismissed an opposition filed by Amer Sports Canada Incorporated against TM Registration No. 6889980 for the wordmark “Arcsilk” in Class 25, finding it dissimilar to and unlikely to be confused with “ARC’TERYX.”
[Opposition Case No. 2025-900056, decided on April 6, 2026]
The Contested Mark: “Arcsilk”
The contested mark, consisting of the word “Arcsilk” in standard characters, was filed by NIHONWASOU HOLDINGS, Inc. on December 27, 2023 [TM App. 2023-143938]. The application designates various goods, including clothing and footwear, in Classes 24 and 25.
The JPO examiner found no grounds for refusal and granted registration of the mark on September 20, 2024. Subsequently, the mark was published for post-grant opposition on January 11, 2025.
Opposition by ARC’TERYX
Amer Sports Canada Incorporated filed an opposition on March 12, 2025, seeking cancellation of the contested mark based on Article 4(1)(xi) and (xv) of the Japan Trademark Law, citing its earlier trademark registration No. 6748891 for the wordmark “ARC’TERYX” in Class 25.
In the opposition, the claimant alleged that the cited mark has become so widely known both in Japan and overseas that the use of the characters “ARC’TERYX” on outdoor goods immediately causes traders and consumers to recognize it as referring to the claimant. Furthermore, they argued that the term “ARC” is widely recognized even among general consumers as referring to the “ARC’TERYX” brand. The claimant contended that “silk” is a descriptive term for raw materials in Class 25 and cannot function as a source indicator. Therefore, they argued that “Arc” is the dominant portion of the contested mark. Since both marks share the dominant element “ARC,” the claimant asserted they are confusingly similar in appearance, concept, and pronunciation.
Additionally, the claimant argued that because the goods and target consumers are identical, the use of “Arcsilk” would lead consumers to misidentify the goods as being from a business entity with an economic or organizational relationship with the claimant.
JPO Decision
Surprisingly, the JPO Opposition Board found that the cited mark “ARC’TERYX” had not achieved a level of widespread recognition sufficient to support the claim of being a famous mark, stating:
“No evidence has been submitted that would allow for an objective and concrete assessment of facts concerning the period of use of the cited mark; sales figures, market share, and business scale; or the expenditures, methods, frequency, and duration of advertising activities. Consequently, we cannot find that the cited mark ‘ARC’TERYX’ was widely recognized among domestic dealers and consumers as an indication of the claimant’s goods at the time of the application or the registration of the contested mark.”
Regarding the similarity of the marks, the Board found that:
- Visually: The marks are clearly distinguishable due to the presence of the apostrophe and the difference between “silk” and “TERYX.”
- Aurally: “Arc-silk” and “Arc-teryx” differ in syllable count and constituent sounds, making them clearly distinguishable even when pronounced continuously.
- Conceptually: The comparison is neutral as neither mark gives rise to a specific, well-defined meaning.
Based on the finding that the cited mark lacked evidence of widespread recognition and possessed a low degree of similarity to the contested mark, the Board concluded there was no risk of confusion. Consequently, the Board ruled that the contested mark should not be cancelled under Article 4(1)(xi) or (xv) of the Trademark Law.