About Us

Attorney Biographies

Shinji Ohga Patent Attorney (Representative Partner)

Field of Expertise

Information Technology, Control Systems Engineering, Electronics, Electrical Engineering, Electronics, Semiconductor Engineering, Communication Engineering, Mechanics, Pharmaceutics, Biotechnology and Chemistry

Background
1982 - 1988 Associate at Unuma Patent Office
1986 Admitted to the Japanese Patent Bar
1988 - 1990 Associate at Nichiei Patent Firm
1990 - 1999 Associate at TMI Associates
1999 - 2008 Co-Partner at TMI Associates
2008 - Current  Co-founder and Representative Partner of Sunnext International Patent Office

Hiroyuki Hyakumoto   Patent Attorney (Vice Representative Partner)

Field of Expertise

Information Technology, Control Systems Engineering, Electrical Engineering, Electronics, Semiconductor Engineering, Communication Engineering and Mechanics

Background
1990 - 2004 Associate at a domestic patent firm
2003 Admitted to the Japanese Patent Bar
2004 - 2008 Associate at TMI Associate
2008 - Current  Co-founder and Vice Representative Partner of Sunnext International Patent Office

Noboru Otsuki  Patent Attorney(Associate)

Field of Expertise

Information Technology, Control Systems Engineering, Communication Engineering, Mechanical Engineering

Background
1998 - 2011 Associate at Willfort International Patent Firm
2003 Associate at Nagai & Associates
2003 Admitted to the Japanese Patent Bar
2006 Admitted to the procedural attorney for infringement of intellectual property rights
2011 - 2017 Partner at Willfort International Patent Firm
2017 - Current Associate at Sunnext International Patent Office

Motofumi Sekine  Patent Attorney(Associate)

Field of Expertise

Electrical Engineering, Electronics, Communication Engineering, Control Systems Engineering, Communication Information Technology

Background
1996 - 2002 Associate at Toshiba Komukai Works
2002 - 2016 Associate at Nagai & Associates
2006 Admitted to the Japanese Patent Bar
2017 - Current Associate at Sunnext International Patent Office

Katsumasa Tanaka  Patent Attorney(Associate)

Field of Expertise

Electronics, Semiconductor Engineering, Communication Information Technology, Control Systems Engineering, Communication Engineering

Background
2001 - 2003 Associate at Hitachi Software Engineering Co., Ltd
2004 - 2001 Associate at a domestic patent firm
2007 - 2008 Associate at Zuken, Inc.
2009 - 2011 Associate at a Tass Meister patent firm
2009 Admitted to the Japanese Patent Bar
2012 - 2014 Associate at The Institute of Intellectual Property
2015 Associate at a domestic patent firm
2016 - Current Associate at Sunnext International Patent Office

Junnichi Eino  Patent Attorney(Associate)

Field of Expertise

Electrical Engineering, Electronics, Communication Engineering, Control Systems Engineering, Communication Information Technology

Background
2006 - 2009 Associate at Faculty of Science and Engineering, Waseda University
2009 - 2013 Associate at Tokyo Kikai Seisakusho, Ltd.
2013 - 2016 Associate at Nagai & Associates
2013 Admitted to the Japanese Patent Bar
2017 - Current Associate at Sunnext International Patent Office

Mariko Nakamichi   Patent Attorney (Associate)

Field of Expertise

Information Technology, Control Systems Engineering, Electrical Engineering, Electronics, Communication Engineering

Background
1995 - 2004 Associate at Information System Services Department of Bank of Japan
2004 - 2010 Associate at Hazuki International Patent Firm
2004 Licensed as the Information Security Engineer
2009 Admitted to the Japanese Patent Bar
2010 - Current Associate at Sunnext International Patent Office