【March 1985】
Graduated from Ota high school
【April 1985】
Admitted to Natural Sciences I, College of Arts and Sciences, the University of Tokyo
【March 1989】
Graduated from the Department of Applied Physics, Faculty of Engineering, the University of Tokyo
【April 1989】
Admitted to the master’s program in the Department of Applied Physics, Graduate School of Engineering, the University of Tokyo

【March 1991】
Completed the master’s program in the Department of Applied Physics, Graduate School of Engineering, the University of Tokyo

【April 1991】
Joined Toshiba Corporation (until March 2017), engaged in development of memory devices such as DRAM and NAND flash, in Semiconductor Device R&D organizations
From April 1993 to February 1998, worked at a DRAM development project conducted by Toshiba/IBM/Siemens in an IBM development center at New York State
【April 2004】
Admitted to Omiya Law School (Evening program)
【March 2007】
Graduated from Omiya Law School
【April 2008】
Transferred to the Intellectual Property Division, engaged in patent prosecution and litigation, both in Japan and overseas
【September 2008】
Passed the bar examination
【December 2016】
Certified as an attorney for completion of legal training course of article 5 of the Lawyers Act
【March 2017】
Registered with the Dai-ni Tokyo Bar Association
【April 2017】
Moved to Toshiba Memory Corporation due to an company split
【February 2018】
Resigned from Toshiba Memory Corporation
【March 2018】
Joined Uchida & Samejima Law Firm