![Koichi Ryuzaki](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Mr. Koichi Ryuzaki is President & Representative Director at Westbegin Co., Ltd. He is on the Board of Directors at Westbegin Co., Ltd. and West Holdings Corp.
| Sociétés | Poste | Fin |
|---|---|---|
Westbegin Co., Ltd.
 Westbegin Co., Ltd. SemiconductorsElectronic Technology Manufactures and installs solar power generation systems | President | - |
| WEST HOLDINGS CORPORATION | Directeur/Membre du Conseil | - |
Actives
Inactives
Sociétés cotées
Entreprise privées
| Entreprise privées | 2 |
|---|---|
West Holdings Corp.
 West Holdings Corp. Alternative Power GenerationUtilities Engages in the operation and maintenance of industrial and residential solar power generation services | Utilities |
Westbegin Co., Ltd.
Westbegin Co., Ltd. SemiconductorsElectronic Technology Manufactures and installs solar power generation systems | Electronic Technology |
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