Aoyama & Partners is a leading IP law firm in Japan, practicing globally in the field of intellectual property. Founded in 1965, the firm has grown to be one of the largest IP law firms in Japan. We provide superior services with sincerity to our clients all over the world.
[ Practice Areas ]
Our practice areas cover full range of IP matters in Japan and other countries, including the followings.
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All affairs related to filing, prosecution, and validation of rights of Patent, Utility Model, Design and Trademark (including service mark)
Search, filing and prosecution, maintenance, opposition, trials for correction, invalidation or the like, evaluation of IP rights, award, etc.
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All activities of disputes and litigation related to Patent, Utility Model, Design, Trademark (including service mark) and Specified Unfair Competitions
Infringement lawsuit (including injunction and provisional injunction), lawsuit for canceling a trial decision, arbitration/mediation, negotiation for settlement, customs enforcement of IP rights, etc.
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Drafting and negotiating contracts related to IP rights
License agreement, transfer/assignment agreement of IP rights, joint research/development agreement, etc.
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Others
Consulting services on IP matters, deposit of microorganisms, copyright registration of computer program or the like, etc.
[ Technical Areas ]
Our expertise extends to all of technical areas, including the followings.
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- Life Science -
pharmaceuticals, agrochemicals, biotechnology, foods, etc.
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- Chemistry and Materials Science -
organic and inorganic chemistry, polymer science, semiconductor materials, metals, ceramics, fibers, etc.
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- Electronics and IT -
electric/electronic circuits, control engineering, semiconductor engineering, etc.
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- Mechanical Engineering -
industrial machinery, precision machinery, plant installation, medical devices, household appliances, commodities, etc.
[ Firm Profile ]
| Name | AOYAMA & PARTNERS |
|---|---|
| Establishment | September 4, 1965 |
| Co-CEO | Hiroshi TAMURA, Norihito YAMAO |
| Senior Counsel | Yasuo TAMURA Mitsutaka IWASAKI Mutsumi SAMEJIMA Takuji YAMADA |
| General Manager of Tokyo Office | Shozo UEMURA |
| Location | Osaka Umeda Twin Towers North 41st floor, [Tokyo Office] |
[ Milestones ]
| April, 2018 | Mr. Hiroshi TAMURA and Mr. Norihito YAMAO, patent attorneys, became Co-CEO’s. |
|---|---|
| November, 2015 | Tokyo office moved to Shosen Mitsui Building, Minato-ku,Tokyo. |
| February, 2013 | Osaka office moved to Osaka Umeda Twin Towers North in Kita-ku, Osaka city. |
| January, 2012 | Mr. Mutsumi SAMEJIMA, a patent attorney, became the fourth chief executive officer. |
| December 2007 | Tokyo office moved to Kasumigaseki Building, Chiyoda-ku, Tokyo. |
| August, 2006 | Mr. Mitsuo TANAKA, a patent attorney, became the third chief executive officer. |
| June, 2002 | Mr. Osamu KAWAMIYA, a patent attorney, became the second chief executive officer. |
| January, 2001 | Opened Tokyo office in Torano-mon in Minato-ku, Tokyo. |
| March 1994 | Moved to IMP Building in Osaka Business Park, Shiromi, Chuo-ku, Osaka city. |
| November, 1986 | Moved to Twin 21 MID Tower in Osaka Business Park, Shiromi, Chuo-ku, Osaka city. |
| February, 1982 | Mr. Mitsunosuke MIZUSHIMA passed away and the firm name was changed to "AOYAMA & PARTNERS." |
| April, 1978 | Installed a computer-aided docketing system. |
| June, 1973 | Started an overseas training program. |
| June, 1969 | Moved to Honmachi Building in Higashi-ku, Osaka city. |
| April, 1967 | Mr. Mitsunosuke MIZUSHIMA, an attorney at law, joined the firm and the firm name was changed to "MIZUSHIMA & AOYAMA LAW AND PATENT FIRM." |
| September, 1965 | Mr. Tamotsu AOYAMA established "AOYAMA PATENT FIRM" in Maeda Building, Higashi-ku, Osaka city. |
Founder / Tamotsu AOYAMA (center)(~2024), Co-CEO / Norihito YAMAO(left-side), Hiroshi TAMURA(right-side)
