The three key advantages of Ehara Patent Office


A wealth of experience and expertise since establishment in 1937

We offer high quality intellectual property services through the use of the expertise in intellectual property work that we have built up over our long years of experience.


Detailed and considerate supports from the standpoint of the client

We greatly value each and every case requested by our clients and therefore hold thorough meetings and opinion exchanges with our clients to propose the optimal solution for the case with analyzing the case both technically and legally as well as considering economical and market environment factors that the client faces.


Services in overseas intellectual property through a global network

Through our approximately 80 years of experience, we have constructed close business cooperation with foreign patent firms and foreign legal firms in many countries, including in the U.S., Europe and Asia. For services in overseas such as filing an application, filing a response to an office action, filing an appeal, filing an opposition and so on, we will keep close communication with attorneys in the local firms to realize reassuring supports that extend across national borders.

Patent Attorneys

Our office brings together specialists in intellectual property rights in various fields. We will provide thorough supports to suit your requests.

List of patent attorneys

Office outline and access

Ehara Patent Office

Yodoko 2nd Bldg. 3F, 4-2-15, Bakurou-machi, Chuo-ku, Osaka 541-0059 Japan

Hours of reception
9:00 to 17:00
(Starts up mailer)

View details of office outline and access