![Kiyoshi Kaiba](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: 21 M $ as of 2026-07-30
Kiyoshi Kaiba formerly worked at Cosel Co., Ltd., as Director, Elco Takaoka Co., Ltd., as President & Representative Director, and Taiyo Denshi Kougyou Co., Ltd., as President & Representative Director.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
COSEL CO., LTD. 6.66% | 2025-11-19 | 2,741,000 ( 6.66% ) | 21 M $ | 2026-07-30 |
| Companies | Position | End |
|---|---|---|
Elco Takaoka Co., Ltd. | President | - |
Taiyo Denshi Kougyou Co., Ltd. | President | - |
| COSEL CO., LTD. | Director/Board Member | - |
Active
Inactive
Listed companies
Private companies
| Private companies | 3 |
|---|---|
Cosel Co., Ltd.
 Cosel Co., Ltd. Electronic Production EquipmentElectronic Technology Manufactures and sells stabilizing power source devices | Electronic Technology |
Elco Takaoka Co., Ltd. | |
Taiyo Denshi Kougyou Co., Ltd. |
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