Chambers Review
Provided by Chambers
Contact number
+81-3-6775-1000Provided by Anderson Mori & Tomotsune
We have extensive, broad achievements and experience in intellectual property (IP). We provide professional, comprehensive advice and counsel tailored to each client’s circumstances and objectives across international and domestic disputes (litigation, arbitration, trials, etc.), various transactions, patent and trademark applications, and related matters. As corporate activities globalize— and companies must plan and implement IP strategies that leverage their strengths domestically and internationally — we support the preparation and execution of global IP strategies. We do so by utilizing our long-standing, close cooperative relationships with top firms in each country.
Provided by Chambers
Provided by Chambers
Anderson Mori & Tomotsune provided accurate advice on matters that spanned multiple areas of law across Japan, the USA, Europe and other countries. It was very helpful to receive one-stop advice.
AMT distinguishes itself from competitors with attorneys who are uniquely knowledgeable in technology, not just the law, which gives it an edge in formulating strategy and understanding client goals.
Anderson Mori & Tomotsune provided accurate advice on matters that spanned multiple areas of law across Japan, the USA, Europe and other countries. It was very helpful to receive one-stop advice.
AMT distinguishes itself from competitors with attorneys who are uniquely knowledgeable in technology, not just the law, which gives it an edge in formulating strategy and understanding client goals.
Provided by Chambers

Yasufumi Shiroyama heads Anderson Mori & Tomotsune's intellectual property practice group and is well regarded for his expertise in IP litigation, acting for a range of leading international companies. He regularly handles patent infringement disputes in district and appellate courts in Japan.
He performed at the highest level with his quick understanding of our company, excellent judgment on personnel selection and timelines and easy-to-understand explanations to non-legal employees.
Mr. Shiroyama brings careful consideration of the client's commercial goals and delivers insightful, practical advice in furtherance of the same.

He offers highly spirited service and listens intently to the contents of the consultation. He has a high level of comprehension, and is able to understand complex projects quickly.
Miki Goto is very knowledgeable in his area and communicates well with international clients.

He has a wealth of experience in patent litigation and gives very useful suggestions and advice on how to proceed. I leave the case to him with peace of mind.
I am very satisfied with the timely and spot-on advice and support that I have received.

Masayuki Yamanouchi is an up-and-coming lawyer with a strong scientific background. Highly sought after by pharmaceutical clients, he often represents clients in patent disputes, including patent linkage, invalidation and enforcement.
Yamanouchi has a good reputation in the pharmaceutical IP area.
He delivers practical advice, keeping in mind the client's position with competitors, suppliers and customers alike. He has command of both English and Japanese, as well as IP law in both countries.




Provided by Anderson Mori & Tomotsune