Katsuragawa Int’l Patent Office was founded in 2006 in Osaka by Mr. Naoki Katsuragawa.

We now have 7 staffs including three patent attorneys, two technical staffs, and one translator.

Our service cover mechanical field, control field, software field, electric field, chemical field etc.

Japanese big companies who are manufacturers of Agricultural Machines, Engines, Textile Machines, Radar Equipment are included in our clients.

We make use of our original software technology and our good teamwork to improve quality of documents filed to patent offices of various countries.

We would try for improving the quality of our work, and keep on making a profound study so as to provide a quick and accurate response to our clients.