With our mission “to spread innovation from Japan to the world,” we commit ourselves to providing the highest quality legal services tailored to each of our clients. Our patent attorneys provide customized solutions by taking into consideration each client’s interests and concerns at all times. Our clients include domestic and international start-up ventures and tech companies.We provide a one-stop service in all areas of IP with in-depth consideration of clients’ needs.

Founder, Patent Attorney
Hajime SHIRASAKA

Patent attorney registration number 16132
Graduated from Department of Communication Engineering, Faculty of Science and Engineering, National Defense Academy. Completed Department of Environment and Information Studies, Graduate School of Environment and Information Sciences, Yokohama National University
Worked for FUJIFILM for 8 years, also training at the patent office for 2 of those years.After opening SHIRASAKA International Patent Office (the precursor to SHIRASAKA & PATENTPARTNERS),Acted as president of company affiliated with big data solution company listed in US Nasdaq. Established Patent Office SHIRASAKA PATENT PARTNERS (now known as SHIRASAKA & PATENTPARTNERS)
Attorney, Skills certification committee member, Association of Intellectual Property Education
Advisor of Healthcare Innovation Hub, Ministry of Economy, Trade and Industry

Co-founder, Patent attorney
Rieko HARIMA

Patent attorney registration number 15167
Graduated from Department of Administration Engineering Faculty of Science and Technology, Keio University
Completed School of Science for Open and Environmental Systems, Graduate School of Science and Technology, Keio University
SUGIMURA & Partners
Academic department (in charge of intellectual property), SBI Pharmaceuticals
Co-founded Patent Office SHIRASAKA PATENTPARTNERS (now known as SHIRASAKA & PATENTPARTNERS)
Patent attorney, Master of Engineering, Supplementary Note of Specific Infringement Lawsuit Counsel

Attorneys and technical staffs

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Representative Patent Attorney

Kaori KOMAKI

Patent attorney registration number 20674

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Deputy Representative Patent Attorney

Yuki KITOU

Patent attorney registration number 20297

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Attorney

Akiyuki ITO

Patent attorney registration number 15327

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Attorney

Takara KUMAZAWA

Patent attorney registration number 15758

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Attorney

Masako SUZUKI

Patent attorney registration number 15411

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Technical staff

Taku HONDO

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Technical staff

Yoko GOTO

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Technical staff

Asako MATSUYA

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Technical staff

Kazuya FUJII

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Technical staff

Toshiaki KANAI

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Technical staff, Translato

Yoshitaka SUZUKI