As of 2025, there were about thousand one-person patent attorney offices operating in Japan. The majority of patent attorney firms were run by one person.
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Japan Patent Attorneys Association. (April 25, 2025). Number of patent attorney offices operating in Japan as of March 2025, by size of company [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 03, 2026, from /statistics/1419808/japan-number-patent-attorney-offices-by-size/
Japan Patent Attorneys Association. "Number of patent attorney offices operating in Japan as of March 2025, by size of company." Chart. April 25, 2025. ÌÇÐÄÆƽâ°æ. Accessed August 03, 2026. /statistics/1419808/japan-number-patent-attorney-offices-by-size/
Japan Patent Attorneys Association. (2025). Number of patent attorney offices operating in Japan as of March 2025, by size of company. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 03, 2026. /statistics/1419808/japan-number-patent-attorney-offices-by-size/
Japan Patent Attorneys Association. "Number of Patent Attorney Offices Operating in Japan as of March 2025, by Size of Company." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 25 Apr 2025, /statistics/1419808/japan-number-patent-attorney-offices-by-size/
Japan Patent Attorneys Association, Number of patent attorney offices operating in Japan as of March 2025, by size of company ÌÇÐÄÆƽâ°æ, /statistics/1419808/japan-number-patent-attorney-offices-by-size/ (last visited August 03, 2026)
Number of patent attorney offices operating in Japan as of March 2025, by size of company [Graph], Japan Patent Attorneys Association, April 25, 2025. [Online]. Available: /statistics/1419808/japan-number-patent-attorney-offices-by-size/
