Koji Sumioka
Director/Board Member at HITACHI CONSTRUCTION MACHINERY CO., LTD.
Active connections
| Name | Gender | Age | Linked companies | Collaboration |
|---|---|---|---|---|
| Kotaro Hirano | M | 65 | 43 years | |
| Tetsuo Katsurayama | M | 68 | 43 years | |
| Seishi Toyoshima | M | 63 | 5 years | |
| Haruyuki Toyama | M | 65 | 9 years | |
| Yusuke Araki | M | - | - | |
| Toshikazu Sakurai | M | 66 | 44 years | |
| Yasushi Ochiai | M | 68 | 35 years | |
| Kazunari Okuhara | M | 76 | 8 years | |
| Shoichi Akiyama | M | 54 | 14 years | |
| Satoshi Yamanobe | M | - | - | |
| Masafumi Senzaki | M | - | - | |
| Hideaki Takahashi | M | 71 | 5 years | |
| Manabu Arami | M | 51 | - | |
| Toshitake Hasunuma | M | 71 | 5 years | |
| Shoji Ino | M | 66 | 43 years | |
| Keiichiro Shiojima | M | 59 | - | |
| Eiji Fukumoto | M | 66 | 12 years | |
| Naoyoshi Yamada | M | - | - |
See more
Connections Chart
Multi-company connection
Former connections
| Name | Gender | Age | Linked companies | Collaboration |
|---|---|---|---|---|
| Hirotoyo Fujii | M | 70 | - | |
| Yuichi Tsujimoto | M | 70 | - | |
| Taiji Hasegawa | M | 77 | - | |
| Toru Sakai | M | 76 | 41 years | |
| Michijiro Kikawa | M | 76 | 44 years | |
| Hideto Mitamura | M | 75 | - | |
| Kousei Watanabe | M | 67 | - | |
| Junko Hirakawa | F | 76 | - | |
| Yoshio Kubo | M | 79 | 4 years | |
| Tohru Kusanagi | M | 49 | - | |
| Hidehiko Matsui | M | 63 | - | |
| Hisashi Hasegawa | M | 68 | - | |
| Teru Karahashi | M | 51 | - | |
| Masato Tamaki | M | 68 | - | |
| Kenji Ota | M | 67 | - | |
| Osamu Okada | M | 69 | - | |
| Takashi Kawamura | M | 84 | - | |
| Eiji Fukunishi | M | 62 | - | |
| Shuya Okayasu | M | 68 | - | |
| Masateru Kobashi | M | 65 | - | |
| Masahide Tanigaki | M | 73 | 4 years | |
| Tatsuro Ishizuka | M | 68 | - | |
| Yutaka Saito | M | 69 | - | |
| Shigeru Murasugi | M | 71 | 36 years | |
| Shigeru Azuhata | M | 74 | - | |
| Takashi Miyoshi | M | 76 | 4 years | |
| Katsunari Mugishima | M | 57 | - |
Statistics
| Country | Connections | % of total |
|---|---|---|
| Japan | 45 | 100.00% |
Age of Connections
Active
Past
Male
Female
Members of the board
Executives
Origin of connections
- Stock Market
- Insiders
- Koji Sumioka
- Personal Network
