
The long queues outside The Hyundai Seoul and the successive sell-outs of the brand's symbolic 'Tanker' series and 'Helmet Bag' attest to the brand's strong fandom. If one were to name the fashion brand with the strongest fandom today, it would undoubtedly be 'Yoshida & Co. PORTER.' But did you know that there are, in fact, two types of 'Porter bags' operating legally in the market?
This is not merely a difference in design lines. If this storied brand, which started in 1962, had taken one crucial proactive step in the early 1990s—foreseeing its expansion into the Asian market—this prolonged history of conflict might never have begun. That step was the missed opportunity of 'Prioritized International Trademark Registration.' This case clearly illustrates the 'first essential step' to take before venturing abroad, showing that merely finding a 'good partner' is not enough.

Reconstructing the Conflict: Misaligned Trademark Rights Cripple a Partnership
The essence of this case does not lie in determining who was right or wrong. Rather, it is a stark lesson on how a business collaboration could commence without first establishing the clear ownership of the brand's most critical asset: the Trademark Right.
- 1962: The Birth of the 'PORTER' Brand: Yoshida & Co. launches the brand in Japan, building decades of reputation domestically.
- 1994–1995: Trademark Registration in Taiwan: A Taiwanese bag distributor, 'Shang Li International (尚立國際),' successfully registers the 'PORTER' trademark within Taiwan first. This company would later operate the 'PORTER INTERNATIONAL' brand.
- 1999: A Risky Partnership Begins: Yoshida & Co., in its bid to enter the Taiwanese market, partners with the very company, Shang Li International. This collaboration, where the local trademark holder also became the distribution partner, was inherently ripe for conflict.
- 2001: The Overture to the 'Trademark War': Leveraging their registered trademark rights, Shang Li International begins expanding into international markets under the 'PORTER INTERNATIONAL' brand. What started as a simple disagreement escalated into a seven-year 'Trademark War' that risked the brand's very destiny.
- 2007: A Compromised Resolution: After the protracted legal battle, both parties reach a settlement. However, Yoshida & Co. was forced to accept the coexistence of 'Two PORTERs' in the market.
As a result, two legally distinct 'PORTER' brands coexist in the Asian market. While dedicated fashion enthusiasts can distinguish them—Yoshida PORTER's orange lining and rectangular logo versus PORTER INTERNATIONAL's human-figure logo—the average consumer can easily be confused. This possibility of brand image dilution is the costly lesson Yoshida PORTER learned from the conflict, a 'result of compromise' born from their failure to fully secure brand control.

Case Analysis: Three Critical Lessons Overlooked During Global Expansion
This narrative imparts three essential takeaways for all brands planning to expand internationally.
1. The 'Steering Wheel' of the Brand Can Be Lost
A local partner holding the trademark rights is equivalent to handing over the steering wheel of your brand to someone else. Situations can arise where you lose control over the brand's direction, design, and even pricing. This is not just a matter of failing to stop counterfeit products; it's a severe crisis where the very identity of the brand is undermined.
2. A Distribution Agreement Cannot Supersede IP Ownership
The mindset of "a robust distribution agreement will suffice" is perilous. If the partner already owns the trademark, the distribution agreement does not make you the brand's master. Instead, it merely makes you a 'tenant' who is temporarily borrowing your own brand. Much like renting a house from a landlord, if the contract ends or the relationship sours, you could be stripped of your brand and expelled empty-handed.
3. A Small Spark Can Ignite a Global Conflagration
The small spark that originated in a single country, Taiwan, spread globally to markets like the United States and Korea. A single trademark issue in one country can trigger a domino effect, threatening business operations in other nations. In this global era, no market can be considered in isolation.

The Three-Step IP Due Diligence Checklist for Brand Protection
How, then, can these risks be prevented? The following three steps must be rigorously reviewed before and after engaging with any international partner.
STEP 1: Pre-Partnership Due Diligence
- Verify Local Trademark Status: Before even negotiating with a potential partner, you must check the IP office website of the target country. Critically, confirm whether your brand name is already registered, and if the prospective partner is the current rights holder.
- Secure Own-Name Trademark Registration: If no issues are found, immediately file for trademark registration under your own company's name. It is prudent to file simultaneously in key markets as well as surrounding countries with potential for future expansion.
STEP 2: Contractual Safeguards
- Mandatory 'Prohibition of Trademark Registration' Clause: The contract must explicitly state that 'The partner is strictly prohibited from registering our brand under their own name. Should this clause be violated, all rights must be immediately assigned back to us.'
- Define Brand Usage Guidelines: Clearly define the rules for brand use, including how the logo is to be displayed and packaging standards, to prevent the partner from unilaterally altering the brand identity.
STEP 3: Ongoing Brand Enforcement and Management
- Systematic Monitoring for Infringement: Continuously monitor to ensure no third party is registering similar trademarks to yours. You must be prepared to immediately raise an objection should any infringement occur.
- Customs Recordation to Combat Counterfeits: Registering your trademark with the local customs authority is highly effective in preventing the importation of counterfeit goods.

Conclusion: Beyond a Good Partner, Trademark Protection is Paramount
Ultimately, the coexistence of the 'Dual PORTER' brands is the costly compromise that resulted from a partnership initiated without securing the foundational element of global business: Trademark Protection. The beginning of a successful international venture is not about finding the best partner; it is about first securing the Trademark Right that confirms your legal ownership of the brand. Before opening the doors to international markets, confirm that your most valuable asset—your brand—is safe under the protection of the law. That is the most solid first step in any global strategy.
Karl Taekyun Chung
Partner Patent Attorney at BLT Patent & Law Firm: www.en.blt.kr
#Trademark #TrademarkRights #TrademarkDispute #Brand #BrandProtection #OverseasExpansionStrategy #YoshidaPorter #PorterInternational #IntellectualProperty #IPStrategy #GlobalBranding #TrademarkImportance #BrandStrategy #FashionBrand #TrademarkWar #IPManagement #PatentLawFirm #PatentAttorney
The long queues outside The Hyundai Seoul and the successive sell-outs of the brand's symbolic 'Tanker' series and 'Helmet Bag' attest to the brand's strong fandom. If one were to name the fashion brand with the strongest fandom today, it would undoubtedly be 'Yoshida & Co. PORTER.' But did you know that there are, in fact, two types of 'Porter bags' operating legally in the market?
This is not merely a difference in design lines. If this storied brand, which started in 1962, had taken one crucial proactive step in the early 1990s—foreseeing its expansion into the Asian market—this prolonged history of conflict might never have begun. That step was the missed opportunity of 'Prioritized International Trademark Registration.' This case clearly illustrates the 'first essential step' to take before venturing abroad, showing that merely finding a 'good partner' is not enough.
Reconstructing the Conflict: Misaligned Trademark Rights Cripple a Partnership
The essence of this case does not lie in determining who was right or wrong. Rather, it is a stark lesson on how a business collaboration could commence without first establishing the clear ownership of the brand's most critical asset: the Trademark Right.
As a result, two legally distinct 'PORTER' brands coexist in the Asian market. While dedicated fashion enthusiasts can distinguish them—Yoshida PORTER's orange lining and rectangular logo versus PORTER INTERNATIONAL's human-figure logo—the average consumer can easily be confused. This possibility of brand image dilution is the costly lesson Yoshida PORTER learned from the conflict, a 'result of compromise' born from their failure to fully secure brand control.
Case Analysis: Three Critical Lessons Overlooked During Global Expansion
This narrative imparts three essential takeaways for all brands planning to expand internationally.
1. The 'Steering Wheel' of the Brand Can Be Lost
A local partner holding the trademark rights is equivalent to handing over the steering wheel of your brand to someone else. Situations can arise where you lose control over the brand's direction, design, and even pricing. This is not just a matter of failing to stop counterfeit products; it's a severe crisis where the very identity of the brand is undermined.
2. A Distribution Agreement Cannot Supersede IP Ownership
The mindset of "a robust distribution agreement will suffice" is perilous. If the partner already owns the trademark, the distribution agreement does not make you the brand's master. Instead, it merely makes you a 'tenant' who is temporarily borrowing your own brand. Much like renting a house from a landlord, if the contract ends or the relationship sours, you could be stripped of your brand and expelled empty-handed.
3. A Small Spark Can Ignite a Global Conflagration
The small spark that originated in a single country, Taiwan, spread globally to markets like the United States and Korea. A single trademark issue in one country can trigger a domino effect, threatening business operations in other nations. In this global era, no market can be considered in isolation.
The Three-Step IP Due Diligence Checklist for Brand Protection
How, then, can these risks be prevented? The following three steps must be rigorously reviewed before and after engaging with any international partner.
STEP 1: Pre-Partnership Due Diligence
STEP 2: Contractual Safeguards
STEP 3: Ongoing Brand Enforcement and Management
Conclusion: Beyond a Good Partner, Trademark Protection is Paramount
Ultimately, the coexistence of the 'Dual PORTER' brands is the costly compromise that resulted from a partnership initiated without securing the foundational element of global business: Trademark Protection. The beginning of a successful international venture is not about finding the best partner; it is about first securing the Trademark Right that confirms your legal ownership of the brand. Before opening the doors to international markets, confirm that your most valuable asset—your brand—is safe under the protection of the law. That is the most solid first step in any global strategy.
Karl Taekyun Chung
Partner Patent Attorney at BLT Patent & Law Firm: www.en.blt.kr
#Trademark #TrademarkRights #TrademarkDispute #Brand #BrandProtection #OverseasExpansionStrategy #YoshidaPorter #PorterInternational #IntellectualProperty #IPStrategy #GlobalBranding #TrademarkImportance #BrandStrategy #FashionBrand #TrademarkWar #IPManagement #PatentLawFirm #PatentAttorney