![Hiroyuki Ishii](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>)
Hiroyuki Ishii currently works as the President at C.A. Mobile Ltd.
| Companies | Position | Start |
|---|---|---|
C.A. Mobile Ltd.
 C.A. Mobile Ltd. Internet Software/ServicesTechnology Services Provides online media, advertising and information services for mobile phones | President | - |
| Companies | Position | End |
|---|---|---|
| MATSUO ELECTRIC CO.,LTD. | Director/Board Member | - |
Active
Inactive
Listed companies
Private companies
| Private companies | 2 |
|---|---|
Matsuo Electric Co., Ltd.
 Matsuo Electric Co., Ltd. Electronic ComponentsElectronic Technology Engages in the manufacture and sale of tantalum capacitors, film capacitors and circuit protection components | Electronic Technology |
C.A. Mobile Ltd.
C.A. Mobile Ltd. Internet Software/ServicesTechnology Services Provides online media, advertising and information services for mobile phones | Technology Services |
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