Hiroichi Yokoyama

Hiroichi Yokoyama

Founder at PROTO CORPORATION

Net worth: 152 M $ as of 29/04/2024

74 year
Technology Services
Retail Trade

Active connections

NameGenderAgeLinked companiesCollaboration
Toru Shiraki M 54
Proto Data Center KK
26 years
Motohisa Yokoyama M 64 45 years
Susumu Kuramoto M 63
34 years
Kenji Kamiya M 56 34 years
Mitsuhiro Munehira M 57 30 years
Shigeyoshi Shimizu M 58 25 years
Noriyuki Udo M 52 28 years
Yumiko Sakurai F 55 10 years
Eriko Kitayama F 66 9 years
Akihiro Matsuzawa M 52 30 years
Akito Ode M - -
See more

Connections Chart

Multi-company connection

Former connections

NameGenderAgeLinked companiesCollaboration
Tatsuzo Irikawa M 65
28 years
Naoki Fujisawa M 56 -
Minoru Saito M 71 33 years
Fujio Iimura M 66 -
Atsuya Okimura M 53 19 years
Kenichi Mizuno M 73 -
Yoshio Arima M 80 -
Mitsuo Goto M 75 -

Statistics

CountryConnections% of total
Japan 19 100.00%

Age of Connections

Active

Past

Male

Female

Members of the board

Executives

Origin of connections