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Firm Profile

Experienced IP attorneys serving clients worldwide

About TOKAI PATENT

Firm Name Tokai Patent & Trademark Attorneys
Founded 2012
Merger July 2025 (merged with Vesta International Patent Firm)
Headquarters Nagoya, Aichi Prefecture, Japan
Number of Attorneys 7
Number of Offices 4 (Nagoya, Nishio, Gifu, Tokyo)
Languages English, Japanese, German, Chinese
Clients From 47+ countries

Our Attorneys

Managing Partner
Tomokazu Adachi

Tomokazu Adachi

Managing Partner / Registration No. 18078
Qualifications
  • Patent Attorney (Japan, Reg. No. 18078)
  • Registered for Specific Infringement Litigation
  • Grade 1 Intellectual Property Management (Brand Specialist)
  • EIKEN Grade 1 (Practical English)
  • TOEIC 955
  • Grade 1 IP Translation (JP Law EN-JP)
Experience
  • ECC Foreign Language Institute Instructor (2002-2004)
  • Hiroe Associates Patent Office (2005-2012)
  • Founder & Managing Partner, TOKAI PATENT (2012-present)
Memberships
  • Japan Patent Attorneys Association (JPAA)
  • International Trademark Association (INTA)
  • International Association for the Protection of Intellectual Property (AIPPI)
  • Japan Trademark Association (JTA)
Partner (Head of Gifu Office)
Chisaki Tsuge

Chisaki Tsuge

Patent Attorney / Head of Gifu Office / Registration No. 16192
Experience
  • Vesta International Patent Firm (2008-2025)
  • Head of Gifu Office, Tokai Patent & Trademark Attorneys (July 2025-present, after merger)
Practice Areas
  • Patents (chemistry, materials, mechanics, textiles, biotech, consumer goods)
  • Designs, trademarks, IP opinions and infringement response, IP contracts, consulting
Memberships
  • Japan Patent Attorneys Association (JPAA)
  • International Association for the Protection of Intellectual Property (AIPPI)
  • Gifu Prefecture Invention Association
Attorneys
Mayu Yagami

Mayu Yagami

Patent Attorney / Registration No. 19510
Experience
  • B.A., French Literature, Aoyama Gakuin University
  • Patent firm in Gifu Prefecture (May 2003 - Aug 2009)
  • Patent firm in Aichi Prefecture (Dec 2009 - Oct 2017)
  • TOKAI PATENT (Nov 2017-present)
Practice Areas
  • Trademarks
Memberships
  • Japan Patent Attorneys Association (JPAA)
  • Japan Trademark Association (JTA)
Takenori Fukuta

Takenori Fukuta

Patent Attorney / Registration No. 18290
Experience
  • B.S., Chemistry, Kyushu University
  • Chemical manufacturers (2000-2009)
  • Several patent firms (2009-2019)
  • TOKAI PATENT (Nov 2019-present)
Practice Areas
  • Chemistry, pharmaceuticals, biotech, semiconductors
Memberships
  • Japan Patent Attorneys Association (JPAA)
Tomoko Sano

Tomoko Sano

Patent Attorney / Registration No. 21034
Qualifications
  • Patent Attorney (Japan, Reg. No. 21034)
  • Registered for Specific Infringement Litigation
  • Grade 1 Intellectual Property Management (Patent Specialist)
  • TOEIC 920
Experience
  • B.A., Forest Products Engineering, Kyoto University
  • M.S., Kyoto University Graduate School
  • Materials manufacturer (textile research lab)
  • Other patent firms
  • TOKAI PATENT (Jan 2022-present)
Practice Areas
  • Mechanical/structural, materials/chemistry
Memberships
  • Japan Patent Attorneys Association (JPAA)
Yuko Taguchi

Yuko Taguchi

Patent Attorney / Registration No. 16565
Experience
  • B.A., Food Engineering, Kyoto University
  • Food manufacturer (1997-2002)
  • Food additives manufacturer (2002-2005)
  • Patent firms in Osaka, Aichi, and Gifu (2005-2022)
  • TOKAI PATENT (March 2022-present)
Practice Areas
  • Trademarks
Memberships
  • Japan Patent Attorneys Association (JPAA)
Yoji Hosokawa

Yoji Hosokawa

Patent Attorney / Registration No. 23276
Experience
  • B.A., Visual Communication / Body Expression, Rikkyo University
  • TOKAI PATENT (March 2023-present)
Practice Areas
  • Trademarks
Memberships
  • Japan Patent Attorneys Association (JPAA)

Office Locations

All four offices share the same phone & fax numbers. Phone: +81-52-265-6025 / Fax: +81-563-65-6102 / Email: info@tokai-pat.jp

Nagoya OfficeHeadquarters

1-15-14-803 Kanayama, Naka-ku,
Nagoya, Aichi 460-0022
Japan

Phone: +81-52-265-6025
Fax: +81-563-65-6102
Email: info@tokai-pat.jp

Main headquarters offering comprehensive IP services including patents, trademarks, designs, and translations.

Nishio Office

6-10 Rendai, Yonezu,
Nishio, Aichi 445-0802
Japan

Phone: +81-52-265-6025
Fax: +81-563-65-6102
Email: info@tokai-pat.jp

Regional office serving businesses in the Nishio area and surrounding regions with full IP services.

Gifu Office

1-7-22-401 Yabuta-Minami,
Gifu 500-8384
Japan

Phone: +81-52-265-6025
Fax: +81-563-65-6102
Email: info@tokai-pat.jp

Branch office providing IP consultation and services to the Gifu region and prefectures nearby.

Tokyo Office

Keio Shinagawa Bldg. 2F (BIZcomfort Shinagawa Skyway),
2-17-1 Konan, Minato-ku, Tokyo 108-0075
Japan

Phone: +81-52-265-6025
Fax: +81-563-65-6102
Email: info@tokai-pat.jp

Satellite office in Shinagawa, Tokyo.

How to Reach Us

By Phone

Main Office (Nagoya):
+81-52-265-6025

Nishio Office:
+81-563-57-8717

By Email

General Inquiries:
info@tokai-pat.jp

Please include your inquiry details and preferred contact method.

By Appointment

We welcome appointments for consultations. Please contact us to schedule a meeting with one of our attorneys.

Ready to Work Together?

Contact us today to discuss your IP needs

Contact TOKAI PATENT