![Tsuneyuki 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>)
Tsuneyuki Ishii
President at
OKAMOTO MACHINE TOOL WORKS, LTD.
Net worth: 337 068 $ as of 30/06/2026
Profile
Tsuneyuki Ishii is currently President & Representative Director at Okamoto Machine Tool Works, Ltd. since 2014.
Former positions include President & Director at Okamoto (Singapore) Pte Ltd. and President & Director at Okamoto (Thai) Co. Ltd. Education includes an undergraduate degree from Seikei University, conferred in 1979.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 31/03/2025 | 9,800 ( 0.15% ) | 337 068 $ | 30/06/2026 |
Tsuneyuki Ishii active positions
| Companies | Position | Start |
|---|---|---|
| OKAMOTO MACHINE TOOL WORKS, LTD. | President | 01/04/2014 |
Former positions of Tsuneyuki Ishii
| Companies | Position | End |
|---|---|---|
Okamoto (Singapore) Pte Ltd.
 Okamoto (Singapore) Pte Ltd. Industrial MachineryProducer Manufacturing Engages in developing and selling of machine tools such as surface grinding and precision cylindrical grinding Machines | President | - |
Okamoto (Thai) Co. Ltd.
 Okamoto (Thai) Co. Ltd. Industrial MachineryProducer Manufacturing Manufactures and supplies grinding machines | President | - |
Training of Tsuneyuki Ishii
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
20
1st degree connections
4
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 4 |
|---|---|
Okamoto Machine Tool Works, Ltd.
 Okamoto Machine Tool Works, Ltd. Industrial MachineryProducer Manufacturing Manufactures and sells of grinding machines & semiconductor production equipment | Producer Manufacturing |
Seikei University
 Seikei University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Okamoto (Singapore) Pte Ltd.
Okamoto (Singapore) Pte Ltd. Industrial MachineryProducer Manufacturing Engages in developing and selling of machine tools such as surface grinding and precision cylindrical grinding Machines | Producer Manufacturing |
Okamoto (Thai) Co. Ltd.
Okamoto (Thai) Co. Ltd. Industrial MachineryProducer Manufacturing Manufactures and supplies grinding machines | Producer Manufacturing |
- Stock Market
- Insiders
- Tsuneyuki Ishii
Choose MarketScreener 
