About Us
Our Track Record
Our Experience
Trusted by Over 800 Companies
Our Reach Continues to Grow
Since our founding in 2017, the number of matters we handle has grown year after year, thanks to the trust and support of our clients. By the end of 2025, we had handled more than 7,000 IP matters in total, addressing a wide range of intellectual property challenges. We remain committed to meeting the needs of each client with care and attention.
*Client count as of July 2026.
Three Key Strengths for Innovators
Since our founding, we have supported the IP strategies of more than 800 companies from diverse backgrounds. For us, this number represents far more than a track record. It reflects the invaluable experience we have gained by standing alongside more than 800 unique ventures, overcoming challenges together, and nurturing the seeds of innovation.
A Strategic Approach
We view intellectual property as more than just a legal asset. We see it as a key driver of business success.
By gaining a deep understanding of the business objectives of each client, we develop comprehensive IP strategies based on market trends and competitive analysis.
Beyond securing IP rights in the short term, we help clients build strategic IP portfolios that contribute to long-term growth in enterprise value.
Clear and Effective Communication
We excel at making complex legal and technical concepts accessible to everyone, from business executives to engineers.
Through close dialogue with our clients, we identify their needs and concerns, and propose the most appropriate solutions.
We also serve as a bridge between internal and external stakeholders, supporting the smooth implementation of IP strategies.
The Power of Diverse Expertise
Our team brings together leading professionals from a wide range of backgrounds, including patent specialists, business executives, experienced R&D and IP professionals from major corporations, venture capitalists, and former startup directors.
This exceptional diversity enables us to provide tailored, high-value support across a broad spectrum of challenges, from innovative startup ideas to complex IP portfolios at large corporations.
Profile
Firm Name
One ip Patent Attorney Corporation
Established
April 2018
Predecessor patent office founded in May 2017
Office Locations
Tokyo Office
Room 208, BUREX Kyobashi
2-7-14 Kyobashi, Chuo-ku, Tokyo 104-0031, Japan
Kanagawa Office
4F, Sanseiro Building
5-2-53 Zushi, Zushi, Kanagawa 249-0006, Japan
Within Yamazaki Patent Office
Hokkaido Office
8F, JR55 SAPPORO Building
1-1 Kita 5-jo Nishi 5-chome, Chuo-ku, Sapporo, Hokkaido 060-0005, Japan
Sendai Office (One ip TOHOKU Co., Ltd.)
4F, enspace
1-4-9 Kokubuncho, Aoba-ku, Sendai, Miyagi 980-0803, Japan
Fukuoka Office
f-labs Kyushu University Hospital
3-1-1-3 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
Representative Patent Attorney
Minoru Nakahata
Contact
History
2017 — Opened as NX Patent Office
2018 — Established iPLAB Startups Patent Professional Corporation
2020 — Renamed One ip Patent Professional Corporation
2022 — Renamed One ip Patent Attorney Corporation
2025 — Established One ip TOHOKU Co., Ltd. as a wholly owned subsidiary
Group
One ip TOHOKU Co., Ltd.
Wholly Owned Subsidiary
Address:
enspace, 1-4-9 Kokubuncho, Aoba-ku, Sendai, Miyagi 980-0803, Japan
Representative:
Shinnosuke Murakami
President and Representative Director
Established:
May 1, 2025
Access
By Train
10-minute walk from Tokyo Station
3-minute walk from Kyobashi Station
5-minute walk from Takaracho Station
