Office Outline

To bring more values to intangible IPs

Office Profile

"For Our Clients窶 Success"

Yamakawa International Patent Office is an intellectual property law firm in Japan. We work for our domestic and foreign clients to protect their intellectual properties including inventions, designs and trademarks.

Our practice covers: preparation and prosecution of applications for patents, utility models, designs and trademarks in Japan; licensing; litigation; searching patents, utility models, designs and trademarks; opinion work; attending to post-grant proceedings; and dealing with specific unfair competition issues.

As for patents and utility models, our specialized technical fields cover electric and electronics, telecommunications, system controls, information technologies including computer software, mechanical engineering, optics, and chemical and material science.

Reliable Services Based Upon Our Half-Century History

We are proud that, since its establishment in 1967, our firm has been making sincere efforts to respond to our clients窶 requests with our quality services. We have long-standing relations with expert associates throughout the world. We rely on them as well to provide worldwide proven expertise and services. We believe that better communications with our clients are the key to success.

Experts With Practical Experience And Technological Expertise

One of our service principles is to bring more values to our clients窶 intellectual properties base upon legal and technical expertise as well as practical experience cultivated from our about half century history as a patent law firm in Japan. All of our attorneys who are specialized in intellectual property laws are also qualified, respectively in some specific technological fields.

All the members of our staff are devoted to do their very best for our clients' satisfaction. We are always happy and willing to contribute to our clients' success.

Company Name
YAMAKAWA International Patent Office
4th Floor, Sanno Park Tower 11-1, Nagatacho 2-Chome, Chiyoda-Ku Tokyo 100-6104, Japan
+81-3 3580-0961
+81-3 3581-5754