{"id":30,"date":"2026-03-12T20:14:13","date_gmt":"2026-03-12T11:14:13","guid":{"rendered":"https:\/\/brandagent.jp\/en_blog\/?p=30"},"modified":"2026-11-02T16:36:12","modified_gmt":"2026-11-02T07:36:12","slug":"japan_trademark_search","status":"publish","type":"post","link":"https:\/\/brandagent.jp\/en_blog\/japan_trademark_search\/","title":{"rendered":"Trademark Search in Japan: How to Check Prior Marks Before Filing (and What People Miss)"},"content":{"rendered":"<p><span style=\"font-size: 120%;\">&#8220;Our mark is registered at home \u2014 will it be fine in Japan?&#8221; &#8220;We searched the English spelling and found nothing. Is that enough?&#8221;<\/span><\/p>\n<p><span style=\"font-size: 120%;\">A mark that is clear in your home country can still be blocked in Japan by an earlier Japanese mark you never saw. In this article, Japanese Patent Attorney Toru Kano of BrandAgent explains what a prior trademark search in Japan covers, the points most often missed, and how to use the results to decide what to file.<\/span><\/p>\n<div class=\"st-mybox st-mybox-class\" style=\"margin: 18px 0; padding: 16px; border: 2px solid #e5e7eb; border-radius: 10px; background: #fafafa;\">\n<p><span style=\"font-size: 120%;\"><strong>What you will learn<\/strong><\/span><\/p>\n<ul style=\"margin: 10px 0 0 18px;\">\n<li><span style=\"font-size: 120%;\">What a prior trademark search is and why it matters in Japan<\/span><\/li>\n<li><span style=\"font-size: 120%;\">The five layers of a proper search<\/span><\/li>\n<li><span style=\"font-size: 120%;\">Common oversights that lead to refusals<\/span><\/li>\n<li><span style=\"font-size: 120%;\">How to turn search results into a filing strategy<\/span><\/li>\n<\/ul>\n<\/div>\n<h2><span style=\"font-size: 120%;\">What is a prior trademark search?<\/span><\/h2>\n<p><span style=\"font-size: 120%;\">A prior trademark search checks, before you file, whether an identical or similar mark has already been filed or registered in Japan for the same or similar goods or services.<\/span><\/p>\n<p><span style=\"font-size: 120%;\">Japan is a <strong>first-to-file<\/strong> country. Rights go to whoever files first, not to whoever used the mark first abroad. Registration in China, Korea, the EU or the US has no effect in Japan, so a Japanese search is needed even for well-established brands.<\/span><\/p>\n<h2><span style=\"font-size: 120%;\">Why search first: the risks of skipping it<\/span><\/h2>\n<ul>\n<li><span style=\"font-size: 120%;\"><strong>Office Action:<\/strong> the JPO objects to your mark citing an earlier one. You must respond through a Japanese patent attorney, and the process gets longer.<\/span><\/li>\n<li><span style=\"font-size: 120%;\"><strong>Final refusal:<\/strong> if the objection cannot be overcome, the application is refused and the filing costs are lost. You may have to change the brand and file again.<\/span><\/li>\n<li><span style=\"font-size: 120%;\"><strong>Delayed market entry:<\/strong> marketplace brand registration, packaging, ads and listings for Japan can all stall while the mark is uncertain.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-size: 120%;\">The five layers of a proper search<\/span><\/h2>\n<p><span style=\"font-size: 120%;\">Checking only for the exact spelling is the most common reason searches fail. A proper search works through these layers in order.<\/span><\/p>\n<h3><span style=\"font-size: 120%;\">1. Exact match<\/span><\/h3>\n<p><span style=\"font-size: 120%;\">Start with identical marks \u2014 in the Latin alphabet and in katakana (the Japanese script used for foreign words).<\/span><\/p>\n<h3><span style=\"font-size: 120%;\">2. Spelling and script variants<\/span><\/h3>\n<p><span style=\"font-size: 120%;\">This is where most misses happen. Check:<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 120%;\">Latin letters, katakana and hiragana versions of the name<\/span><\/li>\n<li><span style=\"font-size: 120%;\">Upper\/lower case<\/span><\/li>\n<li><span style=\"font-size: 120%;\">With or without spaces, hyphens, dots or other symbols<\/span><\/li>\n<li><span style=\"font-size: 120%;\">Word order and joining in multi-word names (&#8220;A B&#8221;, &#8220;AB&#8221;, &#8220;A-B&#8221;)<\/span><\/li>\n<\/ul>\n<h3><span style=\"font-size: 120%;\">3. Pronunciation (the most important layer)<\/span><\/h3>\n<p><span style=\"font-size: 120%;\">Japanese examiners compare how marks <strong>sound when read in Japanese<\/strong>. A Latin-letter mark is converted into its natural katakana reading, and two marks with different spellings can be found similar if their readings are close. Short names, marks that differ only in the ending, and differences in long vowels or small &#8220;tsu&#8221; sounds are high-risk. Foreign applicants often miss this because two names that look and sound distinct in English or Chinese can collapse into nearly the same katakana reading.<\/span><\/p>\n<h3><span style=\"font-size: 120%;\">4. Closeness of goods and services<\/span><\/h3>\n<p><span style=\"font-size: 120%;\">Different class numbers do not guarantee safety: goods in different classes can still be treated as similar. Conversely, marks in the same class may be low-risk if the specific goods are far apart. Japan uses &#8220;similarity group codes&#8221; to judge this, and reading this distance correctly is the hardest part of a search.<\/span><\/p>\n<h3><span style=\"font-size: 120%;\">5. Logos: dominant part and overall impression<\/span><\/h3>\n<p><span style=\"font-size: 120%;\">For a logo, the examiner may focus on its most prominent part rather than the whole design. A text element inside a logo is also searched and compared on its reading.<\/span><\/p>\n<h2><span style=\"font-size: 120%;\">Common oversights<\/span><\/h2>\n<table style=\"border-collapse: collapse; width: 100%;\" border=\"1\">\n<thead>\n<tr style=\"background-color: #f5f5f5;\">\n<th style=\"padding: 8px; text-align: left;\"><span style=\"font-size: 120%;\">Oversight<\/span><\/th>\n<th style=\"padding: 8px; text-align: left;\"><span style=\"font-size: 120%;\">Why it causes trouble<\/span><\/th>\n<th style=\"padding: 8px; text-align: left;\"><span style=\"font-size: 120%;\">What to check<\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">&#8220;Spelled differently, so it&#8217;s safe&#8221;<\/span><\/td>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">Similarity is judged by sound too<\/span><\/td>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">The katakana reading of every variant<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">&#8220;Different class, so it&#8217;s safe&#8221;<\/span><\/td>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">Goods in different classes can be similar<\/span><\/td>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">The specific goods\/services, not just the class number<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">Missing a partial match in a composite mark<\/span><\/td>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">One element of a longer mark can be the conflict<\/span><\/td>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">Each element of combined marks<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">Logo looks different overall<\/span><\/td>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">The dominant part can decide the outcome<\/span><\/td>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">The core visual and text elements<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">Checking registrations only<\/span><\/td>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">An earlier pending application can block you too<\/span><\/td>\n<td style=\"padding: 8px;\"><span style=\"font-size: 120%;\">Pending applications, not just registered marks<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"st-mybox  has-title st-mybox-class\" style=\"background:#ffebee;border-color:#ef9a9a;border-width:2px;border-radius:5px;margin: 25px 0 25px 0;\"><p class=\"st-mybox-title\" style=\"color:#ef5350;font-weight:bold;text-shadow: #fff 3px 0px 0px, #fff 2.83487px 0.981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff 0.705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px 0.42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff 0.850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;\"><i class=\"fa fa-check-circle st-css-no\" aria-hidden=\"true\"><\/i>Tip for e-commerce sellers<\/p><div class=\"st-in-mybox\">\n<p><span style=\"font-size: 120%;\">Short invented names of five to seven letters are popular for online brands, but they are also the names most likely to collide with an existing Japanese mark on pronunciation. Search before you print packaging or set up a store for Japan.<\/span><\/p>\n<\/div><\/div>\n<h2><span style=\"font-size: 120%;\">How to use the results<\/span><\/h2>\n<p><span style=\"font-size: 120%;\">A search is not a simple pass\/fail. It is the basis for deciding <strong>how<\/strong> to file. If a similar earlier mark turns up, the options include:<\/span><\/p>\n<ul>\n<li><span style=\"font-size: 120%;\">Narrowing or reorganizing the goods\/services to avoid the overlap<\/span><\/li>\n<li><span style=\"font-size: 120%;\">Adjusting the mark itself to create distance<\/span><\/li>\n<li><span style=\"font-size: 120%;\">Changing the combination of word and logo (e.g. filing the logo rather than the word alone)<\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 120%;\">We then weigh three things together: the likelihood of registration, the scope of protection you would actually get, and the cost.<\/span><\/p>\n<h2><span style=\"font-size: 120%;\">Cases where a professional search is especially important<\/span><\/h2>\n<ul>\n<li><span style=\"font-size: 120%;\">The name is short or close to an ordinary word, so there are many hits<\/span><\/li>\n<li><span style=\"font-size: 120%;\">The name can be read or written in several ways in Japanese<\/span><\/li>\n<li><span style=\"font-size: 120%;\">You also want to protect a logo<\/span><\/li>\n<li><span style=\"font-size: 120%;\">Your business spans several classes<\/span><\/li>\n<li><span style=\"font-size: 120%;\">You need to launch in Japan quickly and cannot afford a refusal<\/span><\/li>\n<\/ul>\n<div class=\"st-mybox st-mybox-class\" style=\"margin: 18px 0; padding: 16px; border: 2px solid #e5e7eb; border-radius: 10px; background: #fafafa;\">\n<p><span style=\"font-size: 120%;\"><strong>BrandAgent&#8217;s prior search<\/strong><\/span><\/p>\n<p><span style=\"font-size: 120%;\">If you instruct us to file, the prior trademark search is <strong>free of charge<\/strong>. A licensed patent attorney \u2014 not an assistant \u2014 reviews the results personally and tells you how likely the mark is to be registered and which classes you need. With more than 4,000 applications filed, we know where Japanese examiners tend to draw the line.<\/span><\/p>\n<p><span style=\"font-size: 120%;\">Attorney fees: filing JPY 25,000 per class; registration JPY 25,000 per class (excluding Japanese consumption tax, where applicable).<\/span><\/p>\n<\/div>\n<h2><span style=\"font-size: 120%;\">FAQ<\/span><\/h2>\n<ul>\n<li><span style=\"font-size: 120%;\"><strong>Q. Is a search legally required before filing?<\/strong><br \/>\nA. No, but we strongly recommend it. It reduces the risk of an Office Action, a refusal and having to rebrand.<\/span><\/li>\n<li><span style=\"font-size: 120%;\"><strong>Q. Our mark is registered in China. Do we still need to search in Japan?<\/strong><br \/>\nA. Yes. Trademark rights are national. A Chinese, Korean or other foreign registration does not prevent an earlier Japanese mark from blocking yours.<\/span><\/li>\n<li><span style=\"font-size: 120%;\"><strong>Q. A similar mark was found. Is it over?<\/strong><br \/>\nA. Not necessarily. Adjusting the goods\/services or the mark itself often makes registration possible.<\/span><\/li>\n<li><span style=\"font-size: 120%;\"><strong>Q. Can we see the search result before deciding to file?<\/strong><br \/>\nA. Yes. We report our view on registrability first, and you decide whether to go ahead.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-size: 120%;\">Summary<\/span><\/h2>\n<div class=\"st-mybox  has-title st-mybox-class\" style=\"background:#f1f8e9;border-color:#a5d6a7;border-width:2px;border-radius:5px;margin: 25px 0 25px 0;\"><p class=\"st-mybox-title\" style=\"color:#4caf50;font-weight:bold;text-shadow: #fff 3px 0px 0px, #fff 2.83487px 0.981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff 0.705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px 0.42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff 0.850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;\"><i class=\"fa fa-check-circle st-css-no\" aria-hidden=\"true\"><\/i>Key points<\/p><div class=\"st-in-mybox\">\n<ul>\n<li><span style=\"font-size: 120%;\">Japan is first-to-file; a foreign registration does not protect you in Japan.<\/span><\/li>\n<li><span style=\"font-size: 120%;\">Search exact matches, script variants, Japanese pronunciation, goods\/services and logo elements.<\/span><\/li>\n<li><span style=\"font-size: 120%;\">Pronunciation in katakana is the layer foreign applicants most often miss.<\/span><\/li>\n<li><span style=\"font-size: 120%;\">Check pending applications, not just registrations.<\/span><\/li>\n<li><span style=\"font-size: 120%;\">BrandAgent&#8217;s search is free when you instruct us to file.<\/span><\/li>\n<\/ul>\n<\/div><\/div>\n<h2 id=\"related-articles\"><span style=\"font-size: 120%;\">Related articles<\/span><\/h2>\n<ul>\n<li><span style=\"font-size: 120%;\"><a href=\"https:\/\/brandagent.jp\/en_blog\/japan-trademark-similarity-test\/\">How Japan Judges Trademark Similarity: Appearance, Sound and Meaning Explained<\/a><\/span><\/li>\n<li><span style=\"font-size: 120%;\"><a href=\"https:\/\/brandagent.jp\/en_blog\/japan-trademark-similarity-refusal\/\">Refused for a Similar Trademark in Japan? Article 4(1)(xi) Explained by a Japanese Patent Attorney<\/a><\/span><\/li>\n<li><span style=\"font-size: 120%;\"><a href=\"https:\/\/brandagent.jp\/en_blog\/japan_trademark_classes\/\">Trademark Classes in Japan: How to Choose from the 45 Nice Classes and Describe Your Goods\/Services<\/a><\/span><\/li>\n<li><span style=\"font-size: 120%;\"><a href=\"https:\/\/brandagent.jp\/en_blog\/how_to_register_a_trademark_in_japan\/\">How to Register a Trademark in Japan: Step-by-Step Guide for Foreign Applicants [2026]<\/a><\/span><\/li>\n<\/ul>\n<div style=\"background-color: #f0f7ff; border: 2px solid #0066cc; padding: 20px; margin: 24px 0; border-radius: 6px;\">\n<p><span style=\"font-size: 120%;\"><strong>Planning to protect your brand in Japan?<\/strong><br \/>\nTell us your mark and your products \u2014 we will reply with the classes you need and a fixed quote, free of charge.<\/span><\/p>\n<p><span style=\"font-size: 120%;\">BrandAgent Patent Office (Kyoto, Japan)<br \/>\nToru Kano, Japanese Patent Attorney<\/span><\/p>\n<p><a style=\"color: #0066cc; font-weight: bold;\" href=\"https:\/\/brandagent.jp\/en\/trademark_lp\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-size: 120%;\">Get a free quote for your Japanese trademark<\/span><\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>A Japanese patent attorney explains how a prior trademark search in Japan works \u2014 katakana variants, pronunciation, goods\/services similarity, logos and pending applications \u2014 and how to use the results before filing.<\/p>\n","protected":false},"author":1,"featured_media":361,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-30","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trademark"],"_links":{"self":[{"href":"https:\/\/brandagent.jp\/en_blog\/wp-json\/wp\/v2\/posts\/30","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/brandagent.jp\/en_blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/brandagent.jp\/en_blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/brandagent.jp\/en_blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/brandagent.jp\/en_blog\/wp-json\/wp\/v2\/comments?post=30"}],"version-history":[{"count":3,"href":"https:\/\/brandagent.jp\/en_blog\/wp-json\/wp\/v2\/posts\/30\/revisions"}],"predecessor-version":[{"id":198,"href":"https:\/\/brandagent.jp\/en_blog\/wp-json\/wp\/v2\/posts\/30\/revisions\/198"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/brandagent.jp\/en_blog\/wp-json\/wp\/v2\/media\/361"}],"wp:attachment":[{"href":"https:\/\/brandagent.jp\/en_blog\/wp-json\/wp\/v2\/media?parent=30"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/brandagent.jp\/en_blog\/wp-json\/wp\/v2\/categories?post=30"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/brandagent.jp\/en_blog\/wp-json\/wp\/v2\/tags?post=30"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}