Firm Overview
Name | NAVISION IP LAW FIRM |
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Representative | KATSUSHI ISHIKAWA, qualified as a patent attorney in Japan |
Lacation | Twin21 MID tower 25F, 2-1-61, Shiromi, Chuo-ku, Osaka 5406125 JAPAN Access |
Tel | +81-6-6809-3456 |
Fax | +81-6-6809-3454 |
Business hours | 9:00~17:30 (local time in Tokyo) |
Holiday | Weekends (Saturday and Sunday), National holidays in Japan and Our long holidays in Spring, Summer and Winter. Please refer to our annual calendar of business days for details. April 2014~March 2015 |
Firm development
Ohtsuki Patent Law Firm was established by Satoshi Ohtsuki in 2001 at Kawanishi-shi, a suburb of Osaka.
Since then it has grown to become one of the leading intellectual property firms in Osaka.
In 2012, our firm files over 400 applications a year to the Japanese Patent Office.
We changed our firm name from "OHTSUKI PATENT LAW FIRM" to "NAVISION IP LAW FIRM" from August 1, 2023.
JAN 2001 | Established in Kawanishi-shi, Hyogo Yamakatsu Bldg. 2F, Sakane 2-2-15, Kawanishi-shi, Hyogo JAPAN |
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MAY 2003 | Moved to Shin-Osaka (West-nakajima district) Shin-Osaka Central tower 9F, Nishi-nakajima 5-5-15, Yodogawa-ku, Osaka-shi, Osaka JAPAN |
JAN 2009 | Moved to Shin-Osaka (East-nakajima district) Shin-Osaka 2nd Nichidai Bldg. 8F, Higashi-nakajima 1-6-14, Higashi-Yodogawa-ku, Osaka-shi, Osaka JAPAN |
JUN 2012 | Moved to Osaka Business Park (OBP) Twin21 MID tower 25F, 2-1-61, Shiromi, Chuo-ku, Osaka-shi, Osaka JAPAN |