Kazuya Oishi mainly handles cross-border cases in Japan-China as well as global basis, especially M&A, investments, and IT matters.

Since admitted to the bar in 2003, he has gained substantial experience dealing with M&A and corporate cases.
From 2008 to 2010, he completed the Master of Laws Program in Chinese law at Peking University Law School. In addition, he received practical training at Zhong Lun Law Firm, Beijing.

From October 2011 to December 2018, he had been working as the representative of Nishimura & Asahi Beijing Representative Office.
Since January 2019, he has been working at Tokyo Office.

Recent activities


Corpus Juris M&A - Completely Revised Edition (first volume) (second volume)



Peking University Law School (LL.M.)
The University of Tokyo (LL.B.)

Professional experience

2011 - 2018
Representative of Beijing Representative Office
2009 - 2010
Zhong Lun Law Firm, Beijing