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The patent attorney's office which acts as the contact point for patent application and trademark application to China.

BY International Patent & Trademark Firm

BY International Patent & Trademark Firm paves the road of the intellectual property leading to all over Japan and all over the world from Nihonbashi in Japan.


Privacy policy

About Us

BY International Patent & Trademark Firm

7th floor, Kyodo Building Shin Honcho,
2-3-15 Nihonbashi Honcho, Chuo-ku, Tokyo
103-0023 Japan
TEL.+81-3-3527-9704
FAX.+81-3-3527-9705
E-mail. info@by-patent.com


In BY International Patent & Trademark Firm (hereafter, referred to as this office), we observe laws and ordinances about the personal information and other models and make all possible measures for protection of the important personal information of our clients.

About collection of personal information

In this office, we may collect personal information in the following case if necessary.

  • At the time of an inquiry to this office
  • At the time of a service application to this office

About a use purpose of the personal information

This office uses the personal information that we collected from our clients for the following purposes.

  • For communicating with our clients
  • For answering to the inquiry from our clients
  • For providing the service to our clients

About the offer to a third party of the personal information

This office never discloses or provides the personal information that acquired from our clients to a third party, except for the following cases.

  • In the case of that there is an agreement of the person himself
  • In the case of the request from the public office including the request from the police
  • In the case of receiving the application of the law

About disclosure of the personal information, and correction

When there are requests such as disclosure, correction or deletion of the self-information from our client himself, this office accepts it surely.


For the personal information protection

TEL. +81-3-3527-9704 FAX. +81-3-3527-9705
e-mail. info@by-patent.com
BY International Patent & Trademark Firm  Fumihiko Yagisawa



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