SHIGA International Patent Office is one of the largest intellectual property firms in Japan.
We represent domestic and international clients from start-ups to Fortune 500 companies
in filing applications at the Japanese Patent Office and worldwide.

Welcome Message

  • All industrial fields have recently been experiencing tremendous growth and diversification rendering them essentially borderless. First-ever fusion between various technologies is actively creating brand-new ideas. We at Shiga strive to assist our clients in evolving their novel innovations to create new value and also in the development of their business portfolios in the global arena with support from an IP standpoint.

    To enhance the services we offer to our clients, special teams consisting of talented and experienced patent attorneys and technical specialists are assembled for each case. We believe that this teamwork augments the assessment of our clients’ IP rights and maximizes their utilization. It is our utmost desire to provide our clients with the highest level of services.

    President, Patent Attorney
    Yasuhiko Murayama

Our Firm

Name Shiga International Patent Office
Establishment Founded in 1965
Executives Yasuhiko Murayama,
President, Patent Attorney
Employees Staff: approximately 780
– 7 former JPO Examiners
– 138 Patent and Trademark Attorneys
– 4 Japanese Attorneys-at-Law
– 3 Chinese Patent Attorneys
– 300 technical specialists experienced in R&D and IP matters
– 30 litigation specialists who are qualified to represent parties in court in IP infringement litigation
Address GranTokyo South Tower
1-9-2 Marunouchi, Chiyoda-ku,
Tokyo 100-6620 JAPAN
Tel.: +81-3-5288-5811
Fax: +81-3-5288-5831 and -5832
Website: https://shigapatent.com/en/
E-mail: info@shigapatent.com

Access

Directions

GranTokyo South Tower
1-9-2 Marunouchi,
Chiyoda-ku,
Tokyo 100-6620 Japan

From nearby stations to our office
  • 3 minutes walk from Yaesu South Exit of JR Tokyo Station
  • 3 minutes walk from Exit 7 of Subway Kyobashi Station
From Haneda International Airport to JR Tokyo station
  • Approximately 30-minute ride by monorail and JR Line (transfer to JR Line at Hamamatsucho station)
  • Approximately 35-minute ride by Limousine Bus
From Narita International Airport to JR Tokyo station
  • Approximately one hour ride by NEX（Narita Express）
  • Approximately 80-minute ride by Limousine bus

Please stop by the reception area on the 2nd floor of the GranTokyo South Tower building, and inform the receptionist that you have an appointment with us. You will receive a security card in order to enter the elevator area. We have our own reception area on the 20th floor where you will be greeted.

Directions to the Reception Area of GranTokyo South Tower

  1. Reception area on the 2nd floor

    Please stop by the reception area on the 2nd floor of the GranTokyo South Tower building, and inform the receptionist that you have an appointment with us. You will receive a security card in order to enter the elevator area.

  2. Elevators for middle levels

    We have our own reception area on the 20th floor where you will be greeted.

    • * Please take the elevators for floors 13 to 23 behind the reception desk, and get off at the 20th floor. Please note that there are several elevators with different destinations in our building.
    • * When you leave, please return the security card to the collection box.