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Firm Profile

Name Nagoya International Patent Firm
(formerly, Adachi International Patent Firm)
Established In 1978
Partners Tsutomu ADACHI, Chairman
Takeya OKAMOTO, President, Senior Partner/Managing Partner
Keisaku ISHIHARA, Vice-President, Senior Partner/Managing Partner
Makoto IWATA
Hironobu ETO
Hirohiko TANAKA
Masahiro FUKUTA
Nagoya Office (Main Ofice)For access to our Nagoya Office, click here.
Meishin Building 2nd Floor, 20-19, Nishiki 1-chome, Naka-ku, Nagoya, Aichi 460-0003 Japan
+81 (0) 52-203-1001
+81 (0) 52-231-0515
+81 (0) 52-231-0514

Tokyo Office (Branch Office)For access to our Tokyo Office, click here.
Nagata-cho Hoso Building 7th Floor, 2-21, Akasaka 2-chome, Minato-ku, Tokyo 107-0052 Japan
+81 (0) 3-3568-3023
+81 (0) 3-3568-3024
Practice Areas
  • Filing domestic & foreign patent, utility model, design and trademark (service mark) applications
  • Handling disputes (opposition, appeal, expert opinion, litigation, ADR)
  • Assisting conclusion of agreements and negotiation relating to intellectual property
  • Consulting relating to intellectual property, including portfolio management strategy
  • Valuation of intellectual property
  • Various kinds of searching
  • Translation

Firm History

January 1978 Tsutomu ADACHI, the founder, established a patent firm of Adachi Patent Firm in Kasugai-shi, Aichi, Japan
May 1979 The firm moved to Nagoya, one of the largest cities in Japan (Nagoya Seni building, 2-9-27 Nishiki, Naka-ku, Nagoya, Aichi, Japan)
December 1985

The firm changed the name to Adachi International Patent Firm due to the increasing number of foreign cases

Since around this time, in-house US patent attorneys have been working at the firm

1999 The firm website, still at www.patent.gr.jp, debuted
January 2007 The firm was incorporated under its present name, Nagoya International Patent Firm
Tsutomu ADACHI assumed the post of Partner/President, and Takeya OKAMOTO and Keisaku ISHIHARA assumed the post of Partner/Vice President
December 2007 The firm moved to its present location, Meishin building, 2nd Floor, 20-19, Nishiki 1-chome, Naka-ku, Nagoya, Aichi, Japan
January 2009 The firm opened Tokyo Office, at Meisan Fuji Building 3-7-4 Kasumigaseki, Chiyoda-ku, Tokyo, Japan
May 2010 Tokyo Office moved to its present location, Nagata-cho Hoso Building 7th Floor, 2-21, Akasaka 2-chome, Minato-ku, Tokyo, Japan

Our Performance in Japanese IP matters

  • Patent/Utility Model Application to JPO: 1008 cases (2006)
  • Trademark/Design Application to JPO: 211 cases (2006)
  • Infringement Litigation in Japan: 19 cases (5 years up to 2007)
  • Suit against Appeal/Trial Decision in Japan: 32 cases (5 years up to 2007)

The recent number of intellectual property civil suits filed in Japan in one year is about 500, and the number of suits against appeal/trial decision is about 450. There are 9,029 patent attorneys and 3,766 patent firms in Japan as of April, 2011. Accordingly, by simple arithmetic, the number of times one firm can handle an intellectual property civil suit is once in 7.5 years. The number of times one firm can handle a suit against appeal/trial decision is once in 8.4 years. From the above, we are one of the best experienced in the field of intellectual property litigation.

Our Foreign Associates

Our firm has worked with a large number of foreign patent/law firms in many different countries.

(In alphabetical order)
Asia Armenia, Azerbaijan, Bahrain, Bangladesh, Brunei, China, Georgia, Hong Kong, India, Indonesia, Iraq, Iran, Israel, Jordan, Kazakhstan, Korea, Kuwait, Kyrgyz Republic, Laos, Lebanon, Malaysia, Myanmar, Oman, Pakistan, Philippines, Russia, Saudi Arabia, Singapore, Sri Lanka, Syria, Taiwan, Tajikistan, Thailand, Turkmenistan, United Arab Emirates, Uzbekistan, Viet Nam, Yemen
Americas Argentine, Brazil, Canada, Chile, Colombia, Dominican Republic, Ecuador, El Salvador, Suriname, Mexico, Nicaragua, Panama, Paraguay, Peru, United States, Uruguay, Venezuela
Pacific Australia, New Zealand
Africa Algeria, Cameroon, Egypt, Ethiopia, Sudan, Tunisia, Nigeria, South Africa, Morocco, Libya
Europe Albania, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Ireland, Italy, Kosovo, Latvia, Lithuania, Luxembourg, Macedonia, Moldova, Montenegro, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovak Republic, Slovenia, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom


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