Please note that Monday, March 21st 2016 is a public holiday in Japan. Our office will be closed on this day.
A list of all Japanese public holidays for the remaining year can be found on our contact page.
Recent Posts
- ‘Examples of NDA Provisions and Key Points of Post-Conclusion Management,’ by Shogo Matsunaga in May 2024 Issue of Business Houmu March 28, 2024
- Shogo Matsunaga’s first article for IAM Trade Secrets Hub 2024 is now available for reading. March 11, 2024
- Explanation of the main Points of the Amended Implementing Regulations of the Patent Law of the People’s Republic of China January 19, 2024
- USPTO to begin issuing certificates of correction electronically beginning on January 30, 2024 January 5, 2024
- USPTO: Notice of upcoming DOCX filing fee date of January 17, 2024 December 29, 2023
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Sonderhoff & Einsel Law and Patent Office
Shin Marunouchi Center Bldg. 18th Floor
1-6-2 Marunouchi, Chiyoda-ku
Tokyo 100-0005
Tel +81-3-5220-6500
Fax +81-3-5220-6556 (G3)
Fax +81-3-5220-6583 (Law Department)
Contact us by Email
General inquiries info@se1910.com
Inquiries regarding Patents & Utility Models patent@se1910.com
Inquiries regarding Trademarks trademark@se1910.com
Inquiries regarding Designs trademark@se1910.com
Inquiries regarding Legal matters isaji@se1910.com
Sonderhoff & Einsel Tax Co.
Shin Marunouchi Center Bldg. 18th Floor
1-6-2 Marunouchi, Chiyoda-ku
Tokyo 100-0005
Tel +81-3-5220-6563
Fax +81-3-5220-6564
Email tax@se1910.com
S&E CPA Office, Tokyo
Shin Marunouchi Center Bldg. 18th Floor
1-6-2 Marunouchi, Chiyoda-ku
Tokyo 100-0005
Tel +81-3-5220-6504
Fax +81-3-5220-6580
Email audit@se1910.com
