![Hiroyuki Sakai](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>)
Net worth: 6 M $ as of 2026-06-29
Hiroyuki Sakai has worked as a Director at Koken Ltd. since 2014.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
KOKEN LTD. 10.95% | 2025-12-30 | 559,000 ( 10.95% ) | 6 M $ | 2026-06-29 |
| Companies | Position | End |
|---|---|---|
| KOKEN LTD. | President | 2014-03-26 |
Active
Inactive
Listed companies
Private companies
| Private companies | 1 |
|---|---|
Koken Ltd.
 Koken Ltd. Medical SpecialtiesHealth Technology Manufactures and sells labor safety sanitation protectors which includes masks | Health Technology |
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