Recent Update Events
Our Firm Recognized as an Excellent Enterprise of Health and Productivity Management 2023 in the Category of Small and Medium-sized Corporations
Mar 9, 2023 Our Firm Recognized as an Excellent Enterprise of Health and Productivity Management 2023 in the Category of Small and Medium-sized Corporations Asamura Patent Office has been…
Read moreGlobal Law Experts: Our Firm is Once Again a Recipient of a Prestigious Award
Mar 6, 2023 Global Law Experts: Our Firm is Once Again a Recipient of a Prestigious Award We are pleased to announce that our firm has been selected for…
Read moreOur Firm Awarded Trademark Law Firm of the Year 2023 in Japan by the Global Law Experts
Feb 13, 2023 Our Firm Awarded Trademark Law Firm of the Year 2023 in Japan by the Global Law Experts We are pleased to announce that our firm has…
Read morePatent Attorney Kazutaka Otsuka Co-Publishes “Legal Practice of Trademarks: Analysis of Important Precedents and Promotion of Brand Strategy”
Jan 23, 2023 Patent Attorney Kazutaka Otsuka Co-Publishes “Legal Practice of Trademarks: Analysis of Important Precedents and Promotion of Brand Strategy” Our firm’s Patent Attorney and Director of Trademark…
Read moreClosed Dates – 2023 – Japan Patent Office (JPO) and ASAMURA IP P.C.
Jan 1,2023 Closed Dates – 2023– Japan Patent Office (JPO) and ASAMURA IP P.C. Closed dates of the JPO and ASAMURA IP P.C. in 2023 are as follows.…
Read moreThe year end and new year holidays
Dec 26,2020 The year end and new year holidays Our office and Japan Patent Office (JPO) will be closed from December 29, 2022 to January 3, 2023 due to…
Read moreThe Trademark Lawyer Magazine: Our Firm Awarded the Top 10 Trademark Law Firm in Japan 2022
Dec 13, 2022 The Trademark Lawyer Magazine: Our Firm Awarded the Top 10 Trademark Law Firm in Japan 2022 We are pleased to announce that our firm has been…
Read moreThe Patent Lawyer Magazine: Our Firm Awarded the Top 10 Patent Law Firm in Japan 2022
Dec 13, 2022 The Patent Lawyer Magazine: Our Firm Awarded the Top 10 Patent Law Firm in Japan 2022 We are pleased to announce that our firm has been…
Read moreOur firm has been selected as one of the top 10 firms (Tier 3) in the category of Patent Prosecution by Asia IP
Dec 9, 2022 Our firm has been selected as one of the top 10 firms (Tier 3) in the category of Patent Prosecution by Asia IP We are pleased…
Read moreGermany Deposits Ratification of the Agreement on the European Court of Unity (UPCA) , UPCA to (be issued June 1, 2023)
Mar 6, 2023 Germany Deposits Ratification of the Agreement on the European Court of Unity (UPCA) UPCA to (be issued June 1, 2023) Germany deposited…
Read moreJapan: Operation of suspension of examination for divisional applications in which the original application is pending trial (effective April 1, 2023)
Mar 3, 2023 Japan: Operation of suspension of examination for divisional applications in which the original application is pending trial (effective April 1, 2023) Regarding divisional applications for which…
Read moreEPO fee revision (from April 1, 2023)
Feb 28, 2023 EPO fee revision (from April 1, 2023) The European Patent Office (EPO) has announced that it will revise its official fees effective April 1, 2023. Please…
Read moreThe Cabinet Approves the Cabinet Order for Establishing the Effective Date for Partial Revision of the Patent Law and other related laws
Jan 26, 2023 The Cabinet Approves the Cabinet Order for Establishing the Effective Date for Partial Revision of the Patent Law and other related laws Enacted in the 204th…
Read moreUnified Patent Court Agreement (UPCA)
Dec 27, 2022 Unified Patent Court Agreement (UPCA) The Unified Patent Court Agreement (UPCA) system is a combination of the European Unitary Patent (UP) and the Unified…
Read moreJapan: International Application Fees Revised
Dec 20, 2022 Japan: International Application Fees Revised The fees for filing international applications with the Japan Patent Office (JPO) have been revised once again and will be partially…
Read moreJapan: Copyright Decision on Octopus Slide
Nov 18, 2022 Japan: Copyright Decision on Octopus Slide Asamura IP P.C. Chinese Attorney Zheng Xinjia Copyright Decision on Octopus Slide On July 19, 2022, the Supreme…
Read moreJapan: USPTO – JPO Collaborative Search Pilot Program Expansion and Simplified Procedure
Nov 14, 2022 Japan: USPTO – JPO Collaborative Search Pilot Program Expansion and Simplified Procedure USPTO – JPO Collaborative Search Pilot Program Expansion and Simplified Procedure The Collaborative Search…
Read moreJapan: prepayment will be only by cash (bank transfer, etc.) from June 1, 2023
Oct 17, 2022 Japan: prepayment will be only by cash (bank transfer, etc.) from June 1, 2023 According to this Cabinet Order approved on October 14,2022, patent fees,…
Read moreClient First
ASAMURA IP P.C. hereby declares, as through the many generations (established 1891), we have always, to pursue the progress of IP systems in the world. To ensure our client’s satisfaction at all times.
All members of the ASAMURA IP P.C. family, swear to oblige by these beliefs and to do their very best to accomplish such beliefs.
Asamura Declaration
ASAMURA IP P.C. will contribute to the progress of the Intellectual Property systems in the world.
ASAMURA IP P.C. provides services based on knowledge and experience cultivated from over a hundred years, as a patent firm having the longest history and tradition in Japan.
ASAMURA IP P.C. will accurately grasp our client’s needs, and will always endeavor to offer our clients the satisfaction they seek.
See the proof of ASAMURA IP P.C. is trusted!
Trading countries are
Clients all over the world are
established in
Our Value and What Makes Us different
For over a century, we have been providing our clients with excellent service based on knowledge and expertise. We have contributed to the evolution of intellectual property systems all over the world, and helped companies protect their inventions.
DetailsA few things we’re great at..
Who We Are
We have been experts in intellectual property since 1891. Today, we use our history,heritage and experience to help companies around the world get the results they want.
DetailsOur History
-First Patent Office In Japan-
The world was a very different place when ASAMURA IP P.C. was founded in 1891. When Mr.Saburo Asamura opened his office, telephones were only beginning to become widely commercially available. In the century that followed, the company has seen the technology transform the way people live their lives.
Thanks to the trust of our customers, we celebrated our 130th anniversary in 2021.
Our Corporate and Social Responsibilities
We do not just do great work for our clients, we also try to work for our community and the environment.
DetailsManaging Board Members
Member Profiles
Directors
Patent Attorneys and Ph.D.
International Business Coordinator
Partner Lawyers (Asamura Law Offices)
Access
Our office is located at 22nd Floor, at Tennoz Central Tower building, 5 minutes walk from “Tennoz Isle” station(Tokyo monorail or Rinkai LIne).
You can enjoy nice view of airplanes taking-off and landing at Tokyo(Haneda) International Airport.

(1) Taxi (from Tokyo Station/Haneda airport/Shinagawa Station)
JR Tokyo Station 15-25 min ( show this map to your taxi)
Haneda Airport 15-30 min (show this map to your taxi)
JR Shinagawa Station 5-10 min
(2) Tokyo Monorail (from Hamamatsu station / Haneda airport)

Get off at “Tennozu Isle Station” *) , exit the Central Gate, and walk for 3 minutes along the Skywalk pedestrian bridge.
Please go here for the route from the Tokyo Monorail Tennozu Isle Station to ASAMURA IP P.C..
*) please take a Rapid or Local train. “Haneda Express” train does not stop at Tennozu Isle Station.
(3) Rinkai Line ( from JR Shinjyuku station/JR Shibuya station etc.)
Get off at “Tennozu Isle Station”, take Exit B, and walk along the Skywalk pedestrian bridge.
Please go here for the route from the Rinkai Line Tennozu Isle Station to ASAMURA IP P.C..
(4) Others
public bus or shuttle bus(free) are available from JR Shinagawa Station.
Please feel free to ask our staff.
ASAMURA IP P.C.
Address: Tennoz Central Tower 22F (reception), 2-2-24
Higashi-Shinagawa, Shinagawa-ku,
Tokyo 140-0002, Japan
Phone: +81-3-5715-8651(rep.)
:Email: Inquiry Form