Ryujiro Kiyama
President at KOKEN BORING MACHINE CO.,LTD.
Net worth: 112 813 $ as of 30/05/2024
Active connections
| Name | Gender | Age | Linked companies | Collaboration |
|---|---|---|---|---|
| Yoshiyuki Miwa | M | - | - | |
| Hiroshi Sotoyama | M | 64 | 41 years | |
| Kenji Tajima | M | 74 | 12 years | |
| Hirokazu Kimura | M | 76 | 9 years | |
| Tetsuya Fukazawa | M | 70 | 42 years | |
| Ryo Ishizaka | M | 79 |
Kozo Construction Co., Ltd.
| 19 years |
| Hiroshi Sakuragi | M | - | - | |
| Yusuke Izumi | M | - | - |
See more
Connections Chart
Multi-company connection
Former connections
| Name | Gender | Age | Linked companies | Collaboration |
|---|---|---|---|---|
| Yukihiko Otani | M | 69 | 10 years | |
| Sachihiro Suenaga | M | 80 | 52 years | |
| Tsunehiko Shiraki | M | 70 | 15 years | |
| Matsuo Yamada | M | 75 | 8 years | |
| Shoichi Aoyama | M | 76 | 35 years | |
| Hiroshi Sawada | M | 79 | - |
Statistics
| Country | Connections | % of total |
|---|---|---|
| Japan | 1 | 7.14% |
Age of Connections
Active
Past
Male
Female
Members of the board
Executives
Origin of connections
- Stock Market
- Insiders
- Ryujiro Kiyama
- Personal Network
