1 Tadashi Yanai 9.20 BILLION
2 Nobutada Saji 8.60 BILLION
3 Akira Mori 6.10 BILLION
4 Masayoshi Son 5.60 BILLION
5 Kunio Busujima 5.30 BILLION
6 Hiroshi Mikitani 4.70 BILLION
7 Hiroshi Yamauchi 3.80 BILLION
8 Eitaro Itoyama 3.40 BILLION
9 Takemitsu Takizaki 2.90 BILLION
10 Hiroko Takei 2.50 BILLION
11 Masahiro Miki 2.10 BILLION
12 Keiichiro Takahara 1.95 BILLION
13 Shigenobu Nagamori 1.90 BILLION
14 Masatoshi Ito 1.85 BILLION
15 Yokyu Kanazawa 1.80 BILLION
16 Katsumi Tada 1.75 BILLION
17 Han Chang-Woo 1.70 BILLION
18 Yoshikazu Tanaka 1.60 BILLION
19 Soichiro Fukutake 1.40 BILLION
20 Minoru Mori 1.35 BILLION
21 Tetsuro Funai 1.30 BILLION
22 Ryoichi Jinnai 1.25 BILLION
23 Kanbei Kokubu 1.20 BILLION
24 Nobutoshi Shimamura 1.10 BILLION
25 Kinoshita brothers 1.05 BILLION
26 Kazuo Okada 1.00 BILLION
27 Chizuko & Michio Matsui 0.96 MILLION
28 Kazuo Inamori 0.92 MILLION
29 Juichiro Takada 0.90 MILLION
30 Akio Nitori 0.89 MILLION
31 Muneaki Masuda 0.80 MILLION
32 Hajime Satomi 0.78 MILLION
33 Kenji Kasahara 0.72 MILLION
34 Yasuhiro Fukushima 0.71 MILLION
35 Tada Brothers 0.70 MILLION
36 Minoru & Yuji Otsuka 0.69 MILLION
37 Takao Yasuda 0.69 MILLION
38 Yasumitsu Shigeta 0.66 MILLION
39 Shoji Uehara 0.64 MILLION
40 Shoichiro Toyoda 0.62 MILLION
* Keep in mind that 0.## is in the hondreds example : 0.23 = 230 Million.
Source:
FORBES