Information Technology, Control Systems Engineering, Electronics, Electrical Engineering, Electronics, Semiconductor Engineering, Communication Engineering, Mechanics, Pharmaceutics, Biotechnology and Chemistry
| 1982 - 1988 | Associate at Unuma Patent Office |
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| 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 |
Information Technology, Control Systems Engineering, Electrical Engineering, Electronics, Semiconductor Engineering, Communication Engineering and Mechanics
| 1990 - 2004 | Tanabe Patent Office |
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| 2003 | Admitted to the Japanese Patent Bar |
| 2004 - 2008 | Associate at TMI Associate |
| 2008 - Current | Co-founder and Vice Representative Partner of Sunnext SUNNEXT International Patent Office |
Information Technology, Control Systems Engineering, Electrical Engineering, Electronics, Communication Engineering
| 1995 - 2004 | Associated at Information System Services Department of Bank of Japan |
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| 2004 - 2010 | Associate at Hazuki International Patent Firm |
| 2004 | Licensed as the Information Security Engineer |
| 2009 | Admitted to the Japanese Patent Attorney |
| 2010 - Current | Associate at Sunnext International Patent Office |
Information Technology, Control Systems Engineering, Electrical Engineering, Electronics, Communication Engineering, Amusement Machine Technology
| 2004 - 2006 | Associate at Medical Systems of Philips Electronics Japan, Ltd. |
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| 2006 - 2010 | Associate at Koyo International Patent & Law Firm |
| 2010 - Current | Associate at Sunnext International Patent Office |
| 2011 | Admitted to the Japanese Patent Attorney |



