As Japan’s fintech market continues its rapid growth, companies in the space have looked increasingly to patents not just for defense-but as a calculated tool for both offense and protection. According to a recent Law.asia analysis, fintech firms are placing greater emphasis on securing “visible” patents-innovations they can clearly demonstrate in user-facing products.
This strategy reflects a dual purpose: preventing copycats from eroding their edge and deterring litigation by building a balanced portfolio that gives both offensive and defensive leverage.
Why Fintech Patents Matter in Japan
Fintech in Japan includes many services. These are QR-code payments, mobile wallets, AI-driven credit scoring, cloud accounting, robo-advisors, and blockchain remittances. Together, they modernize the financial landscape.
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Tech companies and startups are rising against traditional banks. This creates a risk of copied ideas. Many fintech services use software, mobile apps, and APIs that anyone can access. This makes them easy to replicate.
According to Law.asia, patent protection in fintech is more difficult because most of the financial solutions are perceived as business methods, not technical inventions.
For example, patent examiners can reject applications on grounds of lack of “inventive step” when they cover abstract financial processes in Japan.
To that end, fintech companies are increasingly looking to what Law.asia terms “visible patents”-that is, those facets of the service which are externally verifiable, things like user interface, payment flows, or API behavior.
These are the parts that can be observed and tested by outside parties, making them stronger in enforcement and litigation.
Patents as a Strategic Weapon: Offense and Defense
According to the Law.asia analysis, fintech companies have been using patent portfolios to establish a sort of “cold war” with rivals – not just to sue, but to create a balance of power.
Here’s how:
Offensive use: Companies file visible patents to block new entrants and maintain a lead. Such patents also serve as bargaining chips in partnerships, investments, and M&A.
Defensive use: A strong patent portfolio deters suits by others against a company. Cross-licensing can reduce litigation risk and encourage alliances between firms.
This strategy underscores the fact that patents are not just legal tools, but also closely linked to business strategy and positioning in the marketplace.
Notable Legal Dispute: freee vs. Money Forward
A real-world example of fintech patent conflict in Japan comes from freee Inc. and Money Forward, two leading accounting software firms. Law.asia recounts their dispute over automated journal-entry algorithms.
freee’s patent described a system using a keyword-based reference table for auto-entry, while Money Forward uses a machine learning algorithm.
Eventually, the court dismissed the case in favor of Money Forward, finding their approach did not constitute infringement of freee’s table-based system.
This case underlines an important point: Algorithms and internal processes can often not be protected because they are simply not observable from the outside. That’s why “visible” patents, meaning those tied to external behaviors or user flows, are more enforceable.
Growing Japanese Fintech Patent Filings
This trend is reflected in real numbers: according to Law.asia, PayPay, the leading QR-code payment service, has filed a large number of patents over a very short period. In fact, patent applications by PayPay reportedly already exceed the combined filings of Japan’s three major banks.
This reflects how fintech leaders are building patent arsenals early to position for defense and scale as Japan’s cashless society expands.
日本のハイテク産業への影響
Widening Competitive Moats
Visible patents mean that Fintech firms are likely to build stronger moats around the core business, which can be differentiated even when business models get easily copied.
Greater Valuations and Strategic Leverage
Patents are not only legal shields but also assets that can be used in negotiations, venture investments, and partnerships. A well-structured patent portfolio can attract investment, especially from strategic partners or financial backers who value IP strength.
Rise of Litigation and Cross-Licensing
With higher patent stakes comes the likelihood of more litigation. But at the same time, cross-licensing agreements can become common, allowing for collaboration and cooperation rather than constant battles. Such a model is supported by the described defensive/offensive balance by Law.asia.
Talent and Legal Demand
As more patents are filed, demand for IP experts, patent attorneys, and legal strategists will skyrocket. Japanese fintech companies will face the challenge of attracting talent in technology but more importantly in intellectual property and litigation strategy.
課題とリスク
Patentability Hurdles: Because financial methods are at times abstract, not all innovations will clear the high bar of the Japan Patent Office. Drafting visible patents that are both novel and enforceable requires specialization in IP.
Cost and Complexity: Creating and keeping a portfolio of visible patents can be costly. The resource burden comes from legal costs, examination risks, and potential litigation.
Rapid innovation cycle: Fintech moves fast. Today’s patent might be outdated by tomorrow. Invest in patents, but stay agile in business.
Regulatory risks: In fintech, new rules for payment systems or crypto can change business models quickly. This happens faster than patent strategies can adapt.
結論
The fintech industry in Japan is not only innovating fast, but it is also arming itself strategically with visible patents, using intellectual property as a core component of the competitive playbook. This approach, properly described in Law.asia, offers double value: offensive and defensive, helping players safeguard innovation and negotiate stronger partnerships.
For both Japanese fintech startups and established companies, a strong patent portfolio is becoming a must. As the market grows, firms that master the balance of technical innovation, an enforceable patent strategy, and legal foresight will likely lead the next wave of financial services in Japan.

