- Participated in the establishment of VECTOR INC. as a founding member
- Joined the Ministry of Posts and Telecommunications (now Japan Post Holdings Co., Ltd.)
- Joined VECTOR INC.
- Director of VECTOR INC.
- Established Vector Standard, Inc. (now ANTIL, Inc.) and became Representative Director
- Chairman of Weiku Gonggong Guanxi Zixun (Shanghai) Co., Ltd. (current position)
- Director of PR TIMES, Inc.
- Representative Director of Direct Tech, Inc. (current position)
- Representative Director of VECTOR INC.(current position)